CN115470638B - Military vehicle efficiency evaluation method - Google Patents
Military vehicle efficiency evaluation method Download PDFInfo
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Abstract
The invention discloses a military vehicle efficiency evaluation method. According to the military vehicle efficiency evaluation method, a vehicle simulation model is constructed according to basic information corresponding to a military vehicle to be evaluated, each simulation experiment group corresponding to vehicle simulation scenes is set, and the loss performance, the running performance and the environmental adaptation performance of the military vehicle are evaluated based on experimental data corresponding to each simulation experiment group in each vehicle simulation scene, so that the comprehensive efficiency standard index corresponding to the military vehicle to be evaluated is obtained; the method effectively solves the problem of limitation existing in the prior art, realizes multidimensional evaluation of the efficiency of the military vehicle, greatly improves the referential property of the evaluation result of the efficiency of the military vehicle, provides powerful guarantee for the stability and safety of the subsequent use process of the military vehicle, avoids the economic loss caused by the use in unsuitable areas, and reduces the failure probability and maintenance cost of the military vehicle.
Description
Technical Field
The invention belongs to the technical field of vehicle efficiency evaluation, and relates to a military vehicle efficiency evaluation method.
Background
With the rapid development of technology, army construction gradually enters a new period of informatization and mechanization, and products such as military vehicles are matched with a system of various weapons, and the performance state of the products directly influences the integrity and reliability of a military vehicle combat mark system, so that the military performance evaluation has very important significance;
the performance evaluation of the military vehicle is basically to construct a simulation model of the military vehicle and evaluate the maneuvering performance of the military vehicle, such as off-road maneuvering performance, on-road maneuvering performance and the like of the military vehicle, but the military vehicle has extremely strict stability requirements besides higher maneuvering performance requirements, so that the performance evaluation of the current military vehicle has certain defects, and the performance evaluation of the military vehicle is particularly characterized in the following layers:
1. compared with the common vehicle, the military vehicle and the common vehicle are generally more severe in application environment, the loss degree and the loss probability are obviously larger, the military vehicle is also easy to receive a certain impact, the performance evaluation is carried out only from the motor performance level at present, certain limitation exists obviously, the loss level of the military vehicle is not analyzed, the reliability and the reference performance of the performance evaluation result cannot be ensured, and the stability and the safety of the subsequent use of the military vehicle cannot be ensured;
2. the method is characterized in that the adaptation condition of the military vehicle in the severe climate environment is not analyzed at present, the service environment of the military vehicle is changeable, the possibility of being in a limit environment state is not low, the subsequent service area of the military vehicle is determined by the adaptation condition of the military vehicle in the limit state, the adaptation condition of the military vehicle is not analyzed at present, and the applicability and the feasibility of the subsequent military vehicle in different areas cannot be guaranteed;
3. the dimension of the performance evaluation of the military vehicle is too single at present, and the use scene of the military vehicle belongs to complex scenes, and the accuracy and the rationality of the performance evaluation of the military vehicle cannot be ensured by the evaluation of the single dimension, so that the practical value of the performance evaluation of the military vehicle is insufficient.
Disclosure of Invention
In view of this, in order to solve the problems set forth in the background art, a method for evaluating the performance of a military vehicle is now proposed;
the aim of the invention can be achieved by the following technical scheme:
the first aspect of the invention provides a method for evaluating the effectiveness of a military vehicle, comprising the following steps:
step 1, acquiring vehicle information to be evaluated: acquiring basic information corresponding to a military vehicle to be evaluated at present, wherein the basic information comprises a vehicle type and performance indexes;
step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle model corresponding to a current military vehicle to be evaluated, and setting a vehicle simulation scene and each simulation experiment group corresponding to each vehicle simulation scene based on performance indexes corresponding to the current military vehicle to be evaluated, wherein the vehicle simulation scene comprises a loss simulation scene, a driving simulation scene and an environment simulation scene;
step 3, acquisition and analysis of loss simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in a loss simulation scene, analyzing to obtain loss performance standard indexes corresponding to military vehicles to be evaluated, and marking the loss performance standard indexes as beta;
step 4, acquiring and analyzing driving simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in a driving simulation scene, analyzing and obtaining a driving performance standard index corresponding to a military vehicle to be evaluated, and marking the driving performance standard index as phi;
step 5, collecting and analyzing environment simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in an environment simulation scene, analyzing to obtain environment adaptation performance standard indexes corresponding to military vehicles to be evaluated, and marking the environment adaptation performance standard indexes as delta;
and 6, comprehensively analyzing and evaluating the performance of the vehicle to be evaluated: comprehensively analyzing the performance of the military vehicle to be evaluated to obtain comprehensive performance standard indexes corresponding to the military vehicle to be evaluated, and carrying out matching comparison on the comprehensive performance standard indexes and the performance standard index ranges corresponding to the performance evaluation grades to obtain the performance evaluation grades of the military vehicle to be evaluated;
step 7, feeding back a vehicle performance evaluation result to be evaluated: and feeding back the corresponding performance evaluation grade of the military vehicle to be evaluated to performance evaluation management personnel of the military vehicle to be evaluated.
Preferably, in the step 2, the loss simulation scene and each simulation experiment group corresponding to the loss simulation scene are set, and the specific setting process is as follows:
extracting loss performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a loss simulation scene, and extracting the maximum bearing impact force and the maximum bearing impact time corresponding to each part, and the corresponding allowable wear area and allowable wear thickness of each tire in each driving mileage from the loss performance indexes;
setting an impact bearing experiment set corresponding to each part based on the maximum bearing impact force and the maximum bearing impact time length corresponding to each part of the military vehicle to be evaluated currently;
based on the corresponding allowable abrasion area and allowable abrasion thickness of each tire of the military vehicle to be evaluated in each driving distance, each driving distance abrasion experiment group is constructed, and each impact bearing experiment group corresponding to each part and each abrasion experiment group corresponding to each driving distance are formed into each simulation experiment group corresponding to the abrasion simulation scene.
Preferably, in the step 2, a driving simulation scene and each simulation experiment group corresponding to the driving simulation scene are set, and the specific setting process is as follows:
extracting running performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a running simulation scene, and extracting rated highest running speed, acceleration duration, maximum wading depth, and corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency in various terrains from the running indexes;
setting a vehicle speed experiment group based on the rated highest running vehicle speed and the rated acceleration time length corresponding to the military vehicle to be evaluated;
setting obstacle surmounting experimental groups of various types of terrains based on the corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency of the military vehicle to be evaluated in various types of terrains;
and setting a wading experimental group based on the rated maximum wading depth corresponding to the military vehicle to be evaluated currently, and setting a vehicle speed experimental group, various terrain obstacle surmounting experimental groups and wading experimental groups into each simulation experimental group corresponding to a driving simulation scene.
Preferably, in the step 2, the environment simulation scene and each simulation experiment group corresponding to the environment simulation scene are set, and the specific setting process is as follows:
and extracting environment adaptation indexes from the corresponding performance indexes of the military vehicle to be evaluated at present, constructing an environment simulation scene, extracting the highest adaptation temperature and the lowest adaptation temperature from the environment adaptation indexes, setting a highest temperature experiment set and a lowest temperature experiment set, and forming simulation experiment sets corresponding to the environment simulation scene.
Preferably, the collecting the simulation data corresponding to each simulation experiment group of the vehicle simulation model in the loss simulation scene specifically includes:
positioning impact bearing experiment groups corresponding to all parts from the simulation experiment groups of the vehicle simulation model in a loss simulation scene, collecting impact force corresponding to the vehicle simulation model when defects appear in the impact bearing experiment groups corresponding to all parts and accumulated impact time corresponding to the vehicle simulation model when the defects appear, and respectively marking the impact force and the accumulated impact time as N i And T i I is denoted as a site number, i=1, 2,..;
simulation of each simulation from a vehicle simulation model in a loss simulation scenarioThe wear test group corresponding to each driving mileage is positioned in the test group, the wear area and the wear thickness corresponding to each tire in the wear test group corresponding to each driving mileage of the vehicle simulation model are collected and respectively recorded as M t r And H t r T represents the number of the driving mileage, t=1, 2,. The.g., r represents a tire number, r=1, 2,..;
and taking the corresponding impact force and accumulated impact time when the parts of the vehicle simulation model are defective in the impact bearing experimental group corresponding to the parts, and the corresponding abrasion area and abrasion thickness of each tire in each driving mileage as the corresponding simulation data of each simulation experimental group in the loss simulation scene.
Preferably, the analysis obtains loss performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting impact force corresponding to the occurrence of defects and accumulated impact time corresponding to the occurrence of defects in the impact bearing experimental group corresponding to each part of the vehicle simulation model, and analyzing the formulaAnalyzing to obtain corresponding impact loss performance standard indexes epsilon 1, a1 and a2 of the military vehicle to be evaluated, wherein the corresponding impact loss performance standard indexes epsilon 1, a1 and a2 are respectively expressed as the set impact force and the corresponding duty ratio weight of the impact duration, N' i 、T′ i Respectively expressed as the maximum bearing impact force, the maximum bearing impact time length and sigma corresponding to the ith part of the military vehicle to be evaluated 0 Evaluating a correction factor for the set impact loss;
extracting the corresponding abrasion area and abrasion thickness of each tire of the vehicle simulation model in each driving mileage, and analyzing the formulaAnalyzing to obtain corresponding running loss performance standard index epsilon 2, M 'of military vehicle to be evaluated' tr 、H′ tr Respectively expressed as the allowable wear area and the allowable wear thickness corresponding to the r tire in the t-th driving mileage, and a3 and a4 respectively expressed as the set tire wear area and the set tire wear thicknessDuty weight, sigma, corresponding to the degree 1 Evaluating a correction factor for the set running loss;
according to the analysis formulaAnd analyzing to obtain loss performance standard indexes beta corresponding to the military vehicle to be evaluated, wherein tau 1 and tau 2 are respectively expressed as set impact loss and duty ratio weight factors corresponding to running loss, and e is expressed as a natural constant.
Preferably, the collecting the simulation data corresponding to each simulation experiment group of the vehicle simulation model in the driving simulation scene includes the following specific collecting processes:
positioning a vehicle speed experiment group from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and collecting the highest vehicle speed and the acceleration time length corresponding to the vehicle simulation model in the vehicle speed experiment;
positioning various terrain obstacle surmounting experimental groups from the vehicle simulation model in each simulation experimental group under a driving simulation scene, and collecting corresponding approach angles, departure angles, maximum side inclination, minimum ground clearance and vibration frequency of the vehicle simulation model in the various terrain obstacle surmounting experimental groups;
positioning wading experiment groups from the vehicle simulation models in all simulation experiment groups under a driving simulation scene, and collecting the corresponding maximum wading depth of the vehicle simulation models in the wading experiment groups;
and taking the highest vehicle speed and acceleration time corresponding to the vehicle simulation model in a vehicle speed experiment, the approach angle, the departure angle, the maximum side inclination, the minimum ground clearance and the vibration frequency corresponding to the terrain obstacle surmounting experiment set, and the maximum wading depth corresponding to the wading experiment set as simulation data corresponding to each simulation experiment set in a driving simulation scene.
Preferably, the analysis obtains a running performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the highest vehicle speed and acceleration time corresponding to the vehicle simulation model in a vehicle speed experiment, analyzing the highest vehicle speed and acceleration time by an analysis formula to obtain a speed performance standard index corresponding to the military vehicle to be evaluated, and marking the speed performance standard index as mu 1;
extracting the approach angle, the departure angle, the maximum side inclination, the minimum ground clearance and the vibration frequency corresponding to the vehicle simulation model in various terrain obstacle surmounting experimental groups, further analyzing through an analysis formula to obtain an obstacle surmounting performance standard index corresponding to the military vehicle to be evaluated, and marking the obstacle surmounting performance standard index as mu 2;
extracting the corresponding maximum wading depth of the vehicle simulation model in the wading experiment group, further analyzing by an analysis formula to obtain a wading performance standard index corresponding to the military vehicle to be evaluated, and marking the wading performance standard index as mu 3;
according to the analysis formulaAnd analyzing to obtain an evaluation compensation factor corresponding to the running performance standard index phi, lambda 1, lambda 2 and lambda 3 of the military vehicle to be evaluated, wherein the running performance standard index phi, lambda 1, lambda 2 and lambda 3 are expressed as set speed performance, obstacle crossing performance and wading performance.
Preferably, the method includes the steps of collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in an environment simulation scene, and analyzing and obtaining environment adaptation performance standard indexes corresponding to the military vehicle to be evaluated, wherein the specific implementation process is as follows:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model under the environment simulation scene, collecting the starting time, the average running current and the average running voltage of the vehicle simulation model corresponding to the highest temperature experiment group, and respectively marking as t High height 、I High height 、U High height Meanwhile, acquiring simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group;
extracting corresponding rated starting duration, rated running current and rated running voltage at the highest adaptive temperature and the lowest adaptive temperature from the performance indexes of the military vehicle to be evaluated currently;
by adapting the analysis formula to the highest temperatureAnalyzing to obtain high-temperature adaptive performance standard indexes psi 1, c1 and c2 corresponding to the military vehicle to be evaluated,C3 is expressed as a correction factor corresponding to the set starting time, the running current and the running voltage, t' High height 、I′ High height 、U′ High height Respectively representing the corresponding rated starting time, rated running current and rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on simulation data corresponding to a vehicle simulation model in a lowest temperature experimental group, obtaining a low-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated by performing homologous analysis according to an analysis mode of the high-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated, and marking the low-temperature adaptive performance standard index as phi 2;
and analyzing according to an analysis formula delta=eη1+η2+η2 to obtain an environment adaptation performance standard index delta corresponding to the military vehicle to be evaluated, wherein η1 and η2 are respectively evaluation correction factors corresponding to high-temperature adaptation and low-temperature adaptation.
Preferably, the specific calculation formula of the comprehensive performance standard reaching index corresponding to the military vehicle to be evaluated is thatX represents the comprehensive efficacy standard reaching index corresponding to the military vehicle to be evaluated, R1, R2 and R3 respectively represent the duty ratio weight factors corresponding to the set loss performance, the running performance and the environment adaptation performance, and ζ is the set evaluation compensation weight.
Compared with the prior art, the invention has the following beneficial effects:
according to the military vehicle efficacy evaluation method provided by the invention, the vehicle simulation model is constructed according to the basic information corresponding to the military vehicle to be evaluated, the vehicle simulation and each simulation experiment group corresponding to each vehicle simulation scene are set, the loss performance, the running performance and the environment adaptation performance of the military vehicle are evaluated based on the experimental data corresponding to each simulation experiment group in each vehicle simulation scene, so that the comprehensive efficacy standard index corresponding to the military vehicle to be evaluated is obtained, on one hand, the limitation problem existing in the prior art is effectively solved, the multidimensional evaluation of the military vehicle efficacy is realized, the reliability and the referential of the military vehicle efficacy evaluation result are greatly improved, and meanwhile, a powerful guarantee is provided for the stability and the safety of the military vehicle in the subsequent use process; on one hand, through evaluating the environment adaptation performance of the military vehicle, the usability and feasibility of the military vehicle in different environments and different areas are guaranteed to the greatest extent, the economic loss caused by the fact that the military vehicle is put into use in an inapplicable area is avoided, the service life of the military vehicle is maintained, and meanwhile the fault probability and the maintenance cost of the military vehicle are also greatly reduced; on the other hand, through the multi-dimensional evaluation, the evaluation requirement of the military vehicle under different use scenes is effectively met, the accuracy, the rationality and the scientificity of the performance evaluation of the military vehicle are greatly improved, the theoretical basis of the performance evaluation of the military vehicle is enriched, and the practical value and the reference value of the evaluation result are higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the steps of the method of the present invention.
Detailed Description
The foregoing is merely illustrative of the principles of the invention, and various modifications, additions and substitutions for those skilled in the art will be apparent to those having ordinary skill in the art without departing from the principles of the invention or from the scope of the invention as defined in the accompanying claims.
Referring to fig. 1, the present invention provides a method for evaluating the performance of a military vehicle, comprising the steps of:
step 1, acquiring vehicle information to be evaluated: and acquiring basic information corresponding to the military vehicle to be evaluated at present, wherein the basic information comprises vehicle types and performance indexes.
In one particular embodiment, the performance indicators of the military vehicle under evaluation include, but are not limited to, loss performance indicators, travel performance indicators, and environmental adaptation indicators;
the loss performance indexes comprise, but are not limited to, maximum bearing impact force and maximum bearing impact time corresponding to each part of the military vehicle to be evaluated, and allowable wear area and allowable wear thickness of each tire in each driving range, wherein each part comprises a vehicle head left side, a vehicle head right side, a vehicle tail left side, a vehicle tail right side, a wind shielding part and a vehicle window part;
the running performance indexes include, but are not limited to, rated highest running speed, acceleration duration, maximum wading depth, and corresponding rated approach angle, departure angle, maximum side rake, minimum ground clearance and vibration frequency in various types of terrains;
it should be noted that various terrains including deserts, mountain areas, marshes, etc.;
the environmental adaptation indexes include, but are not limited to, the highest adaptation temperature, the lowest adaptation temperature, the rated start-up time, the rated operating current and the rated operating voltage corresponding to the highest adaptation temperature and the lowest adaptation temperature;
step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle model corresponding to a current military vehicle to be evaluated, and setting a vehicle simulation scene and each simulation experiment group corresponding to each vehicle simulation scene based on performance indexes corresponding to the current military vehicle to be evaluated, wherein the vehicle simulation scene comprises a loss simulation scene, a driving simulation scene and an environment simulation scene;
for example, the loss simulation scene and each simulation experiment group corresponding to the loss simulation scene are set, and the specific setting process is as follows:
extracting loss performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a loss simulation scene, and extracting the maximum bearing impact force and the maximum bearing impact time corresponding to each part, and the corresponding allowable wear area and allowable wear thickness of each tire in each driving mileage from the loss performance indexes;
setting an impact bearing experiment set corresponding to each part based on the maximum bearing impact force and the maximum bearing impact time length corresponding to each part of the military vehicle to be evaluated currently;
constructing each driving mileage abrasion experiment group based on the corresponding allowable abrasion area and allowable abrasion thickness of each tire of the military vehicle to be evaluated in each driving mileage, and forming each simulation experiment group corresponding to the abrasion simulation scene by the impact bearing experiment group corresponding to each part and the abrasion experiment group corresponding to each driving mileage;
for example, a driving simulation scene and each simulation experiment group corresponding to the driving simulation scene are set, and the specific setting process is as follows:
extracting running performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a running simulation scene, and extracting rated highest running speed, acceleration duration, maximum wading depth, and corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency in various terrains from the running indexes;
setting a vehicle speed experiment group based on the rated highest running vehicle speed and the rated acceleration time length corresponding to the military vehicle to be evaluated;
setting obstacle surmounting experimental groups of various types of terrains based on the corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency of the military vehicle to be evaluated in various types of terrains;
based on the rated maximum wading depth corresponding to the military vehicle to be evaluated, wading experiment groups are set, and the vehicle speed experiment groups, various terrain obstacle surmounting experiment groups and wading experiment groups are set into simulation experiment groups corresponding to a driving simulation scene;
still another exemplary embodiment of the present invention sets up an environment simulation scene and each simulation experiment set corresponding to the environment simulation scene, and the specific setting process is as follows:
extracting environment adaptation indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing an environment simulation scene, extracting the highest adaptation temperature and the lowest adaptation temperature from the environment adaptation indexes, setting a highest temperature experiment set and a lowest temperature experiment set, and forming simulation experiment sets corresponding to the environment simulation scene;
step 3, acquisition and analysis of loss simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in a loss simulation scene, analyzing to obtain loss performance standard indexes corresponding to military vehicles to be evaluated, and marking the loss performance standard indexes as beta;
specifically, the simulation data corresponding to each simulation experiment group of the vehicle simulation model in the loss simulation scene is collected, and the specific collection process is as follows:
positioning impact bearing experiment groups corresponding to all parts from the simulation experiment groups of the vehicle simulation model in a loss simulation scene, collecting impact force corresponding to the vehicle simulation model when defects appear in the impact bearing experiment groups corresponding to all parts and accumulated impact time corresponding to the vehicle simulation model when the defects appear, and respectively marking the impact force and the accumulated impact time as N i And T i I is denoted as a site number, i=1, 2,..;
it should be noted that, the impact duration test carried in the impact load test group is a fixed impact force test, i.e. the impact test is carried out by fixed impact force;
the wear test groups corresponding to the driving mileage are positioned from the vehicle simulation model in the wear simulation scene, the wear area and the wear thickness corresponding to the tires in the wear test groups corresponding to the driving mileage are collected, and the wear area and the wear thickness are respectively recorded as M t r And H t r T represents the number of the driving mileage, t=1, 2,. The.g., r represents a tire number, r=1, 2,..;
taking the corresponding impact force and accumulated impact time when each part of the vehicle simulation model is defective in the impact bearing experimental group corresponding to each part, and the corresponding abrasion area and abrasion thickness of each tire in each driving mileage as the corresponding simulation data of each simulation experimental group in the loss simulation scene;
further, the loss performance standard index corresponding to the military vehicle to be evaluated is obtained through analysis, and the specific analysis process comprises the following steps:
extracting impact force corresponding to each part of the vehicle simulation model when defects appear in the impact bearing experimental group and corresponding to each part of the vehicle simulation model when defects appear in the impact bearing experimental groupThrough an analysis formulaAnalyzing to obtain corresponding impact loss performance standard indexes epsilon 1, a1 and a2 of the military vehicle to be evaluated, wherein the corresponding impact loss performance standard indexes epsilon 1, a1 and a2 are respectively expressed as the set impact force and the corresponding duty ratio weight of the impact duration, N' i 、T′ i Respectively expressed as the maximum bearing impact force, the maximum bearing impact time length and sigma corresponding to the ith part of the military vehicle to be evaluated 0 Evaluating a correction factor for the set impact loss;
extracting the corresponding abrasion area and abrasion thickness of each tire of the vehicle simulation model in each driving mileage, and analyzing the formulaAnalyzing to obtain corresponding running loss performance standard index epsilon 2, M 'of military vehicle to be evaluated' tr 、H′ tr Respectively expressed as the allowable wear area and the allowable wear thickness corresponding to the r-th tire in the t-th driving mileage, and a3 and a4 respectively expressed as the set duty weights corresponding to the tire wear area and the tire wear thickness, sigma 1 Evaluating a correction factor for the set running loss;
according to the analysis formulaAnalyzing to obtain loss performance standard indexes beta corresponding to the military vehicle to be evaluated, wherein tau 1 and tau 2 are respectively expressed as set duty ratio weight factors corresponding to impact loss and running loss, and e is expressed as a natural constant;
step 4, acquiring and analyzing driving simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in a driving simulation scene, analyzing and obtaining a driving performance standard index corresponding to a military vehicle to be evaluated, and marking the driving performance standard index as phi;
specifically, the simulation data corresponding to each simulation experiment group of the vehicle simulation model in the driving simulation scene are collected, and the specific collection process is as follows:
on-line from vehicle simulation modelThe vehicle speed experimental group is positioned in each simulation experimental group under the driving simulation scene, and the maximum vehicle speed and the acceleration time length corresponding to the vehicle simulation model in the vehicle speed experiment are collected and respectively recorded as v and T Adding ；
Positioning various terrain obstacle surmounting experimental groups from various simulation experimental groups of the vehicle simulation model under a driving simulation scene, collecting corresponding approach angles, departure angles, maximum side inclination, minimum ground clearance and vibration frequencies of the vehicle simulation model in the various terrain obstacle surmounting experimental groups, and respectively recording as alpha d 、θ d 、l d And f d D is denoted as a terrain type number, d=1, 2.
Positioning wading experiment groups from the vehicle simulation models in each simulation experiment group under a driving simulation scene, collecting the corresponding maximum wading depth of the vehicle simulation models in the wading experiment groups, and recording as L;
taking the highest vehicle speed and acceleration time corresponding to the vehicle simulation model in a vehicle speed experiment, the approach angle, the departure angle, the maximum side inclination, the minimum ground clearance and the vibration frequency corresponding to the terrain obstacle surmounting experiment set of each type, and the maximum wading depth corresponding to the wading experiment set as simulation data corresponding to each simulation experiment set in a driving simulation scene;
further, the running performance standard index corresponding to the military vehicle to be evaluated is obtained through analysis, and the specific analysis process comprises the following steps:
extracting the highest vehicle speed and acceleration time length corresponding to the vehicle simulation model in a vehicle speed experiment, and analyzing the formulaAnalyzing to obtain corresponding speed performance standard indexes mu 1, v ' and T ' of the military vehicle to be evaluated ' Adding The rated maximum running speed and the rated acceleration time length of the military vehicle to be evaluated are respectively set, and b1 and b2 are respectively duty ratio weight factors corresponding to the set speed and acceleration time length;
extracting vehicle simulation mouldCorresponding approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency in various terrain obstacle surmounting experimental groups are calculated by an analysis formulaAnalyzing to obtain corresponding obstacle crossing performance standard index mu 2 and alpha 'of military vehicle to be evaluated' d 、θ′ d 、/>l′ d And f' d Respectively representing the corresponding rated approach angle, departure angle, maximum side rake, minimum ground clearance and vibration frequency of the military vehicle to be evaluated in the type d terrain, and respectively representing the set approach angle, departure angle, maximum side rake, minimum ground clearance and corresponding duty ratio weight of vibration frequency of the military vehicle to be evaluated, wherein omega is a set obstacle crossing performance evaluation correction factor;
extracting the corresponding maximum wading depth of the vehicle simulation model in the wading experimental group, and analyzing the formulaAnalyzing to obtain a wading performance standard index mu 3 corresponding to the military vehicle to be evaluated, wherein L' is a rated maximum wading depth corresponding to the military vehicle to be evaluated;
according to the analysis formulaAnalyzing to obtain an evaluation compensation factor corresponding to the running performance standard index phi, lambda 1, lambda 2 and lambda 3 of the military vehicle to be evaluated, wherein the running performance standard index phi, lambda 1, lambda 2 and lambda 3 are expressed as set speed performance, obstacle crossing performance and wading performance;
step 5, collecting and analyzing environment simulation scene simulation data: the method comprises the steps of acquiring simulation data corresponding to each simulation experiment group of a vehicle simulation model in an environment simulation scene, analyzing to obtain environment adaptation performance standard indexes corresponding to military vehicles to be evaluated, and marking the environment adaptation performance standard indexes as delta;
the method specifically comprises the steps of collecting simulation data corresponding to each simulation experiment group of a vehicle simulation model in an environment simulation scene, analyzing and obtaining environment adaptation performance standard indexes corresponding to military vehicles to be evaluated, and specifically executing the following steps:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model under the environment simulation scene, collecting the starting time, the average running current and the average running voltage of the vehicle simulation model corresponding to the highest temperature experiment group, and respectively marking as t High height 、I High height 、U High height Meanwhile, acquiring simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group;
extracting corresponding rated starting duration, rated running current and rated running voltage at the highest adaptive temperature and the lowest adaptive temperature from the performance indexes of the military vehicle to be evaluated currently;
by adapting the analysis formula to the highest temperatureAnalyzing to obtain a correction factor corresponding to the high-temperature adaptive performance standard index psi 1, c2 and c3 of the military vehicle to be evaluated, wherein the correction factor is expressed as a set starting time length, an operating current and an operating voltage, and t' High height 、I′ High height 、U′ High height Respectively representing the corresponding rated starting time, rated running current and rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on simulation data corresponding to a vehicle simulation model in a lowest temperature experimental group, obtaining a low-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated by performing homologous analysis according to an analysis mode of the high-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated, and marking the low-temperature adaptive performance standard index as phi 2;
analyzing according to an analysis formula delta=eη1+η2+η1+η2 to obtain an environment adaptation performance standard index delta corresponding to the military vehicle to be evaluated, wherein η1 and η2 are respectively evaluation correction factors corresponding to high-temperature adaptation and low-temperature adaptation;
and 6, comprehensively analyzing and evaluating the performance of the vehicle to be evaluated: comprehensively analyzing the performance of the military vehicle to be evaluated to obtain comprehensive performance standard indexes corresponding to the military vehicle to be evaluated, and carrying out matching comparison on the comprehensive performance standard indexes and the performance standard index ranges corresponding to the performance evaluation grades to obtain the performance evaluation grades of the military vehicle to be evaluated;
specifically, the specific calculation formula of the comprehensive performance standard index corresponding to the military vehicle to be evaluated is as followsX represents the comprehensive efficacy standard reaching index corresponding to the military vehicle to be evaluated, R1, R2 and R3 respectively represent the duty ratio weight factors corresponding to the set loss performance, the running performance and the environment adaptation performance, and ζ is the set evaluation compensation weight;
step 7, feeding back a vehicle performance evaluation result to be evaluated: and feeding back the corresponding performance evaluation grade of the military vehicle to be evaluated to performance evaluation management personnel of the military vehicle to be evaluated.
According to the embodiment of the invention, the vehicle simulation model is constructed according to the basic information corresponding to the military vehicle to be evaluated, each simulation experiment group corresponding to the vehicle simulation scene is set, the loss performance, the running performance and the environmental adaptation performance of the military vehicle are evaluated based on the experimental data corresponding to each simulation experiment group in each vehicle simulation scene, so that the comprehensive performance standard index corresponding to the military vehicle to be evaluated is obtained, on one hand, the limitation problem existing in the prior art is effectively solved, the multidimensional evaluation of the performance of the military vehicle is realized, the reliability and the referential performance of the performance evaluation result of the military vehicle are greatly improved, and meanwhile, the powerful protection is provided for the stability and the safety of the military vehicle in the subsequent use process; on one hand, through evaluating the environment adaptation performance of the military vehicle, the usability and feasibility of the military vehicle in different environments and different areas are guaranteed to the greatest extent, the economic loss caused by the fact that the military vehicle is put into use in an inapplicable area is avoided, the service life of the military vehicle is maintained, and meanwhile the fault probability and the maintenance cost of the military vehicle are also greatly reduced; on the other hand, through the multi-dimensional evaluation, the evaluation requirement of the military vehicle under different use scenes is effectively met, the accuracy, the rationality and the scientificity of the performance evaluation of the military vehicle are greatly improved, the theoretical basis of the performance evaluation of the military vehicle is enriched, and the practical value and the reference value of the evaluation result are higher.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (9)
1. A military vehicle efficiency evaluation method is characterized in that: the method comprises the following steps:
step 1, acquiring vehicle information to be evaluated: acquiring basic information corresponding to a military vehicle to be evaluated at present, wherein the basic information comprises a vehicle type and performance indexes; step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle model corresponding to a current military vehicle to be evaluated, and setting a vehicle simulation scene and each simulation experiment group corresponding to each vehicle simulation scene based on performance indexes corresponding to the current military vehicle to be evaluated, wherein the vehicle simulation scene comprises a loss simulation scene, a driving simulation scene and an environment simulation scene;
step 3, acquisition and analysis of loss simulation scene simulation data: the method is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a loss simulation scene, analyzing and obtaining loss performance standard index corresponding to the military vehicle to be evaluated, and recording as；
Step 4, acquiring and analyzing driving simulation scene simulation data: the method is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, analyzing and obtaining driving performance standard index corresponding to the military vehicle to be evaluated, and marking as；
Step 5, collecting and analyzing environment simulation scene simulation data: for collecting vehicle simulationsThe model obtains the simulation data corresponding to each simulation experiment group under the environment simulation scene, analyzes and obtains the environment adaptation performance standard index corresponding to the military vehicle to be evaluated, and marks as；
And 6, comprehensively analyzing and evaluating the performance of the vehicle to be evaluated: comprehensively analyzing the performance of the military vehicle to be evaluated to obtain comprehensive performance standard indexes corresponding to the military vehicle to be evaluated, and carrying out matching comparison on the comprehensive performance standard indexes and the performance standard index ranges corresponding to the performance evaluation grades to obtain the performance evaluation grades of the military vehicle to be evaluated;
the specific calculation formula of the comprehensive efficacy standard reaching index corresponding to the military vehicle to be evaluated is as followsX represents the corresponding comprehensive efficacy standard reaching index of the military vehicle to be evaluated,respectively expressed as the duty weight factors corresponding to the set loss performance, running performance and environment adaptation performance, < ->Compensating the weight for the set evaluation;
step 7, feeding back a vehicle performance evaluation result to be evaluated: and feeding back the corresponding performance evaluation grade of the military vehicle to be evaluated to performance evaluation management personnel of the military vehicle to be evaluated.
2. The method for evaluating the performance of a military vehicle of claim 1, wherein: in the step 2, a loss simulation scene and each simulation experiment group corresponding to the loss simulation scene are set, and the specific setting process is as follows:
extracting loss performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a loss simulation scene, and extracting the maximum bearing impact force and the maximum bearing impact time corresponding to each part, and the corresponding allowable wear area and allowable wear thickness of each tire in each driving mileage from the loss performance indexes;
setting an impact bearing experiment set corresponding to each part based on the maximum bearing impact force and the maximum bearing impact time length corresponding to each part of the military vehicle to be evaluated currently;
based on the corresponding allowable abrasion area and allowable abrasion thickness of each tire of the military vehicle to be evaluated in each driving distance, each driving distance abrasion experiment group is constructed, and each impact bearing experiment group corresponding to each part and each abrasion experiment group corresponding to each driving distance are formed into each simulation experiment group corresponding to the abrasion simulation scene.
3. The method for evaluating the performance of a military vehicle of claim 1, wherein: setting a driving simulation scene and each simulation experiment group corresponding to the driving simulation scene in the step 2, wherein the specific setting process is as follows:
extracting running performance indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing a running simulation scene, and extracting rated highest running speed, acceleration duration, maximum wading depth, and corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency in various terrains from the running indexes;
setting a vehicle speed experiment group based on the rated highest running vehicle speed and the rated acceleration time length corresponding to the military vehicle to be evaluated;
setting obstacle surmounting experimental groups of various types of terrains based on the corresponding rated approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency of the military vehicle to be evaluated in various types of terrains;
and setting a wading experimental group based on the rated maximum wading depth corresponding to the military vehicle to be evaluated currently, and setting a vehicle speed experimental group, various terrain obstacle surmounting experimental groups and wading experimental groups into each simulation experimental group corresponding to a driving simulation scene.
4. The method for evaluating the performance of a military vehicle of claim 1, wherein: setting an environment simulation scene and each simulation experiment group corresponding to the environment simulation scene in the step 2, wherein the specific setting process is as follows:
and extracting environment adaptation indexes from the corresponding performance indexes of the military vehicle to be evaluated at present, constructing an environment simulation scene, extracting the highest adaptation temperature and the lowest adaptation temperature from the environment adaptation indexes, setting a highest temperature experiment set and a lowest temperature experiment set, and forming simulation experiment sets corresponding to the environment simulation scene.
5. The method for evaluating the performance of a military vehicle of claim 2, wherein: the specific acquisition process of the simulation data corresponding to each simulation experiment group of the vehicle simulation model under the loss simulation scene is as follows:
positioning impact bearing experiment groups corresponding to all parts from the simulation experiment groups of the vehicle simulation model in a loss simulation scene, collecting impact force corresponding to the vehicle simulation model when defects appear in the impact bearing experiment groups corresponding to all parts and accumulated impact time corresponding to the vehicle simulation model when the defects appear, and respectively recording asAnd->I is denoted as a site number, i=1, 2,..;
positioning a wear experiment group corresponding to each driving distance from each simulation experiment group of the vehicle simulation model under the loss simulation scene, collecting the wear area and the wear thickness corresponding to each tire of the vehicle simulation model in each wear experiment group corresponding to each driving distance, and respectively recording asAnd->T represents the number of the driving mileage, t=1, 2,. The.g., r represents a tire number, r=1, 2,..;
and taking the corresponding impact force and accumulated impact time when the parts of the vehicle simulation model are defective in the impact bearing experimental group corresponding to the parts, and the corresponding abrasion area and abrasion thickness of each tire in each driving mileage as the corresponding simulation data of each simulation experimental group in the loss simulation scene.
6. The method for evaluating the performance of a military vehicle of claim 5, wherein: the analysis is carried out to obtain loss performance standard indexes corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting impact force corresponding to the occurrence of defects and accumulated impact time corresponding to the occurrence of defects in the impact bearing experimental group corresponding to each part of the vehicle simulation model, and analyzing the formulaAnalyzing to obtain corresponding impact loss performance standard index of military vehicle to be evaluated>，/>Respectively expressed as the corresponding duty ratio weights of the set impact force and the impact time length, +.>Respectively expressed as maximum bearing impact force and maximum bearing impact time length corresponding to the ith part of the military vehicle to be evaluated, ">Evaluating a correction factor for the set impact loss;
extracting the corresponding abrasion area and abrasion thickness of each tire of the vehicle simulation model in each driving mileage, and analyzing the formulaAnalyzing to obtain military vehicle pair to be evaluatedIndex of the performance of loss on driving up to standard->，/>Expressed as the allowable wear area and the allowable wear thickness of the r tire in the t-th driving range, respectively, ">Respectively expressed as the set tire wear area and the corresponding duty ratio weight of the tire wear thickness +.>Evaluating a correction factor for the set running loss;
according to the analysis formulaAnalyzing to obtain loss performance standard index corresponding to military vehicle to be evaluated>，/>The duty weight factors corresponding to the impact loss and the running loss are set, and e is a natural constant.
7. A method of evaluating the performance of a military vehicle as set forth in claim 3, wherein: the specific acquisition process of the simulation data corresponding to each simulation experiment group of the vehicle simulation model under the driving simulation scene is as follows:
positioning a vehicle speed experiment group from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and collecting the highest vehicle speed and the acceleration time length corresponding to the vehicle simulation model in the vehicle speed experiment;
positioning various terrain obstacle surmounting experimental groups from the vehicle simulation model in each simulation experimental group under a driving simulation scene, and collecting corresponding approach angles, departure angles, maximum side inclination, minimum ground clearance and vibration frequency of the vehicle simulation model in the various terrain obstacle surmounting experimental groups;
positioning wading experiment groups from the vehicle simulation models in all simulation experiment groups under a driving simulation scene, and collecting the corresponding maximum wading depth of the vehicle simulation models in the wading experiment groups;
and taking the highest vehicle speed and acceleration time corresponding to the vehicle simulation model in a vehicle speed experiment, the approach angle, the departure angle, the maximum side inclination, the minimum ground clearance and the vibration frequency corresponding to the terrain obstacle surmounting experiment set, and the maximum wading depth corresponding to the wading experiment set as simulation data corresponding to each simulation experiment set in a driving simulation scene.
8. The method for evaluating the performance of a military vehicle of claim 7, wherein: the analysis is carried out to obtain the corresponding running performance standard index of the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the highest vehicle speed and acceleration time corresponding to the vehicle simulation model in a vehicle speed experiment, analyzing the highest vehicle speed and acceleration time by an analysis formula to obtain a speed performance standard index corresponding to the military vehicle to be evaluated, and marking the speed performance standard index as；
Extracting the approach angle, departure angle, maximum side inclination, minimum ground clearance and vibration frequency corresponding to the vehicle simulation model in various terrain obstacle surmounting experimental groups, further obtaining the obstacle surmounting performance standard index corresponding to the military vehicle to be evaluated through analysis formula analysis, and marking as；
Extracting the maximum wading depth corresponding to the vehicle simulation model in the wading experiment group, further analyzing through an analysis formula to obtain the wading performance standard index corresponding to the military vehicle to be evaluated, and recording as；
According to the analysis formulaAnalyzing to obtain corresponding running performance standard index of military vehicle to be evaluated>，/>The score is expressed as an evaluation compensation factor corresponding to the set speed performance, the obstacle crossing performance and the wading performance.
9. The method for evaluating the performance of a military vehicle of claim 4, wherein: the method comprises the steps of collecting simulation data corresponding to each simulation experiment group of a vehicle simulation model in an environment simulation scene, analyzing and obtaining environment adaptation performance standard indexes corresponding to military vehicles to be evaluated, and specifically executing the following steps:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model under the environment simulation scene, collecting the starting time, the average running current and the average running voltage of the vehicle simulation model corresponding to the highest temperature experiment group, and respectively recording asMeanwhile, acquiring simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group;
extracting corresponding rated starting duration, rated running current and rated running voltage at the highest adaptive temperature and the lowest adaptive temperature from the performance indexes of the military vehicle to be evaluated currently;
by adapting the analysis formula to the highest temperatureAnalyzing to obtain high-temperature adaptive performance standard index corresponding to military vehicles to be evaluated>，/>The correction factors corresponding to the set starting time, the running current and the running voltage are expressed by +.>Respectively representing the corresponding rated starting time, rated running current and rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on simulation data corresponding to a vehicle simulation model in a lowest temperature experimental group, obtaining a low-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated by performing homologous analysis according to an analysis mode of the high-temperature adaptive performance standard index corresponding to the military vehicle to be evaluated, and marking the low-temperature adaptive performance standard index as；
According to the analysis formulaAnalyzing to obtain environment adaptation performance standard index corresponding to military vehicle to be evaluated>，/>And respectively evaluating and correcting factors suitable for high temperature adaptation and low temperature adaptation.
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