CN115470638A - 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. The military vehicle efficiency evaluation method comprises the steps of constructing a vehicle simulation model according to basic information corresponding to a military vehicle to be evaluated, setting vehicle simulation and each simulation experiment group corresponding to each vehicle simulation scene, and evaluating loss performance, running performance and environment adaptability of the military vehicle based on corresponding experiment data of each simulation experiment group in each vehicle simulation scene, so as to obtain a comprehensive efficiency standard-reaching index corresponding to the military vehicle to be evaluated; the method effectively solves the limitation problem existing in the prior art, realizes multi-dimensional evaluation of the military vehicle efficiency, greatly improves the reference of the military vehicle efficiency evaluation result, provides powerful guarantee for the stability and the safety of the military vehicle in the subsequent use process, avoids economic loss caused by use in an unsuitable area, and also reduces the fault probability and the 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 science and technology, military construction gradually enters a new period of informatization and mechanization, products such as military vehicles are matched with systems of various weapons, and the efficiency state directly influences the integrity and reliability of a military vehicle battle standard system, so that the military efficiency evaluation has very important significance;
at present, the performance evaluation of military vehicles is basically to construct a military vehicle simulation model and evaluate the maneuvering performance of the military vehicle, such as the off-road maneuvering performance and the highway maneuvering performance of the military vehicle, but the military vehicle has a very strict requirement on the stability in addition to the higher requirement on the maneuvering performance, and therefore, the current performance evaluation of military vehicles has certain defects, which are embodied in the following layers:
1. the military vehicle and the common vehicle are generally in a worse application environment, the loss degree and the loss probability of the military vehicle are obviously larger, and the military vehicle is easy to be impacted to a certain extent, so that the efficiency evaluation only performed from the mechanical performance level at present has certain limitation, the loss level of the military vehicle is not analyzed, the reliability and the reference of the efficiency evaluation result cannot be guaranteed, and the stability and the safety of the military vehicle in subsequent use cannot be guaranteed;
2. the adaptive situation of the military vehicle in a severe climate environment is not analyzed at present, the service environment of the military vehicle is variable, the possibility of the military vehicle in a limit environment state is not low, the adaptive situation of the military vehicle in the limit state determines the subsequent service area of the military vehicle, and the subsequent service area of the military vehicle is not analyzed at present, so that the applicability and the feasibility of the subsequent military vehicle in different areas cannot be guaranteed;
3. at present, the dimensionality of military vehicle efficiency evaluation is too single, the use scenes of military vehicles and the like belong to complex scenes, the accuracy and the rationality of the military vehicle efficiency evaluation cannot be guaranteed through single-dimensionality evaluation, and the practical value of the military vehicle efficiency evaluation is insufficient.
Disclosure of Invention
In view of the above, to solve the problems in the background art, a military vehicle performance evaluation method is proposed;
the purpose of the invention can be realized by the following technical scheme:
in a first aspect, the present invention provides a military vehicle performance evaluation method, comprising:
step 1, obtaining information of a vehicle to be evaluated: acquiring basic information corresponding to the military vehicle to be evaluated at present, wherein the basic information comprises a vehicle type and a performance index;
step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle type corresponding to the 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 a performance index 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, acquiring and analyzing loss simulation scene simulation data: the system is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a loss simulation scene, analyzing the simulation data to obtain loss performance standard index corresponding to the military vehicle to be evaluated, and recording the loss performance standard index as beta;
step 4, collecting and analyzing simulation data of the driving simulation scene: the system is used for acquiring simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, analyzing and obtaining a driving performance standard index corresponding to the military vehicle to be evaluated, and marking as phi;
step 5, collecting and analyzing simulation data of the environment simulation scene: the system is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in an environment simulation scene, analyzing and obtaining an environment adaptability standard index corresponding to the military vehicle to be evaluated, and recording the index as delta;
step 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 index corresponding to the military vehicle to be evaluated, and matching and comparing the comprehensive performance standard index with the performance standard index range corresponding to each performance evaluation level to obtain the performance evaluation level of the military vehicle to be evaluated;
and 7, feeding back the performance evaluation result of the vehicle to be evaluated: and feeding back the performance evaluation grade corresponding to the military vehicle to be evaluated to the performance evaluation manager of the military vehicle to be evaluated.
Preferably, in the step 2, a loss simulation scenario and each simulation experiment group corresponding to the loss simulation scenario are set, and the specific setting process is as follows:
extracting loss performance indexes from the 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 duration corresponding to each part and the allowable wear area and the allowable wear thickness corresponding to each driving range of each tire from the loss performance indexes;
setting an impact bearing experiment group corresponding to each part of the military vehicle to be evaluated based on the maximum bearing impact force and the maximum bearing impact duration corresponding to each part;
and constructing each driving range abrasion experimental group based on the corresponding allowable abrasion area and the allowable abrasion thickness of each driving range of each tire of the military vehicle to be evaluated currently, and constructing each simulation experimental group corresponding to the loss simulation scene by using the impact bearing experimental group corresponding to each part and the abrasion experimental group corresponding to each driving range.
Preferably, the driving simulation scene and each simulation experiment group corresponding to the driving simulation scene are set in the step 2, 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 maximum running speed, acceleration duration, maximum wading depth, corresponding rated approach angle, departure angle, maximum roll inclination, minimum ground clearance and vibration frequency from the running indexes;
setting a vehicle speed experimental group based on the corresponding rated maximum running vehicle speed and acceleration duration of the military vehicle to be evaluated;
setting obstacle crossing experimental groups of various types of terrains based on corresponding rated approach angles, departure angles, maximum roll inclinations, minimum ground clearances and vibration frequencies of the military vehicles to be evaluated in various types of terrains;
and setting a wading experiment group based on the rated maximum wading depth corresponding to the military vehicle to be evaluated at present, and driving the vehicle speed experiment group, the terrain obstacle crossing experiment groups of various types and the wading experiment group to each simulation experiment group corresponding to the simulation scene.
Preferably, the environment simulation scene and each simulation experiment group corresponding to the environment simulation scene are set in step 2, 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 group and a lowest temperature experiment group, and forming each simulation experiment group corresponding to the environment simulation scene.
Preferably, the collecting of the simulation data corresponding to each simulation experiment group of the vehicle simulation model in the loss simulation scene includes the following specific collecting processes:
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 duration corresponding to the vehicle simulation model when the defects appear, and respectively recording the impact force and the accumulated impact duration as N i And T i I denotes the site number, i =1,2.
Positioning a wear experiment group corresponding to each driving range from each simulation experiment group of the vehicle simulation model in a loss simulation scene, collecting the wear area and the wear thickness corresponding to each tire of the vehicle simulation model in the wear experiment group corresponding to each driving range, and respectively recording as M t r And H t r T represents a mileage number, t =1,2,... G, r represents a tire number, r =1,2,... P;
and taking the impact force and the accumulated impact duration corresponding to the defects of each part of the vehicle simulation model in the corresponding impact bearing experiment group of each part, and the wear area and the wear thickness corresponding to each tire in each driving range as the simulation data corresponding to each simulation experiment group in the loss simulation scene.
Preferably, the analysis obtains a loss performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the impact force corresponding to the damage of the vehicle simulation model in the corresponding impact bearing experiment group of each part and the accumulated impact duration corresponding to the damage, and analyzing the impact duration according to an analysis formula
Analyzing to obtain corresponding impact loss performance standard index epsilon 1 of the military vehicle to be evaluated, wherein a1 and a2 are respectively expressed as proportion weight, N 'corresponding to set impact force and impact duration' i 、T′ i Respectively expressed as the maximum load impact force and the maximum load impact duration, 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 wear area and the wear thickness corresponding to each tire of the vehicle simulation model in each driving range, and analyzing the wear area and the wear thickness according to an analysis formula
Analyzing to obtain a military vehicle to be evaluated corresponding driving loss performance standard index epsilon 2,M' tr 、H′ tr Expressed as allowable wear area and allowable wear thickness corresponding to the r-th tire in the t-th mileage, a3 and a4 are expressed as ratio weights corresponding to the set tire wear area and tire wear thickness, respectively, and σ 1 Evaluating a correction factor for the set driving loss;
according to analytical formula
And analyzing to obtain loss performance standard index beta corresponding to the military vehicle to be evaluated, wherein tau 1 and tau 2 are respectively expressed as proportion weight factors corresponding to the set impact loss and the set driving loss, and e is expressed as a natural constant.
Preferably, the collecting of 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 corresponding maximum vehicle speed and acceleration duration of the vehicle simulation model in the vehicle speed experiment;
positioning various terrain obstacle crossing experimental groups from various simulation experimental groups of a vehicle simulation model in a driving simulation scene, and acquiring corresponding approach angles, departure angles, maximum side inclinations, minimum ground clearance and vibration frequencies of the vehicle simulation model in the various terrain obstacle crossing experimental groups;
positioning wading experiment groups from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and collecting the corresponding maximum wading depth of the vehicle simulation model in the wading experiment groups;
and taking the highest speed and the acceleration duration of the vehicle simulation model in the vehicle speed experiment, the corresponding approach angle, departure angle, maximum roll-off, minimum ground clearance and vibration frequency in each type of terrain obstacle crossing experiment group and the corresponding maximum wading depth in the wading experiment group as the simulation data corresponding to each simulation experiment group in the driving simulation scene.
Preferably, the analysis obtains a driving performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the highest speed and the acceleration duration corresponding to the vehicle simulation model in a vehicle speed experiment, and analyzing by an analysis formula to obtain a speed performance standard index corresponding to the military vehicle to be evaluated, and recording the speed performance standard index as mu 1;
extracting an approach angle, a departure angle, a maximum roll-over degree, a minimum ground clearance and a vibration frequency of the vehicle simulation model in various terrain obstacle crossing experimental groups, and further obtaining an obstacle crossing performance standard index corresponding to the military vehicle to be evaluated through analysis formula analysis, and recording the index as mu 2;
extracting the maximum wading depth of the vehicle simulation model in the wading experiment group, and further analyzing by an analysis formula to obtain a wading performance standard index corresponding to the military vehicle to be evaluated, and recording the index as mu 3;
according to analytical formula
And analyzing to obtain a driving performance standard index phi corresponding to the military vehicle to be evaluated, wherein the lambda 1, the lambda 2 and the lambda 3 are expressed as evaluation compensation factors corresponding to the set speed performance, obstacle crossing performance and wading performance.
Preferably, the simulation data corresponding to each simulation experiment group of the vehicle simulation model under the environment simulation scene is collected and analyzed to obtain the environmental adaptability standard index corresponding to the military vehicle to be evaluated, and the specific implementation process is as follows:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model in an 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 the starting time, the average running current and the average running voltage as t Height of 、I Height of 、U Height of Simultaneously collecting the vehicle simulation model at the lowest levelSimulation data corresponding to the temperature experiment group;
extracting the corresponding rated starting time, 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;
by maximum temperature adaptation analysis formula
And analyzing to obtain high-temperature adaptability standard index psi 1, c2 and c3 corresponding to the military vehicle to be evaluated, wherein the index is expressed as a correction factor t 'corresponding to set starting time, running current and running voltage' Height of 、I′ Height of 、U′ Height of Respectively representing the rated starting time, the rated running current and the rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on the simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group, the low-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated is obtained through the same analysis according to the analysis mode of the high-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated and is marked as psi 2;
and analyzing according to an analysis formula delta = e eta 1 psi 1+ eta 2 psi 2 to obtain an environmental adaptation performance standard index delta corresponding to the military vehicle to be evaluated, wherein eta 1 and eta 2 are evaluation correction factors corresponding to high-temperature adaptation and low-temperature adaptation respectively.
Preferably, the specific calculation formula of the comprehensive performance achievement index corresponding to the military vehicle to be evaluated is
X represents the comprehensive performance standard index corresponding to the military vehicle to be evaluated, R1, R2 and R3 respectively represent the proportion weight factors corresponding to the set loss performance, driving performance and environmental adaptation performance, and zeta is the set evaluation compensation weight.
Compared with the prior art, the invention has the following beneficial effects:
according to the military vehicle efficiency evaluation method, 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, and the loss performance, the running performance and the environment adaptability performance of the military vehicle are evaluated based on the corresponding experiment data of 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, on one hand, the limitation problem existing in the prior art is effectively solved, the multi-dimensional evaluation of the military vehicle efficiency is realized, the reliability and the reference of the military vehicle efficiency evaluation result are greatly improved, and meanwhile, the powerful guarantee is provided for the stability and the safety of the military vehicle in the subsequent use process; on one hand, the usability and the feasibility of the military vehicle in different environments and different areas are guaranteed to the greatest extent by evaluating the environmental adaptability of the military vehicle, the economic loss caused by putting the military vehicle into use in the inapplicable areas 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 greatly reduced; on the other hand, through multi-dimensional evaluation, the evaluation requirements of military vehicles under different use scenes are effectively met, the accuracy, the reasonability and the scientificity of the military vehicle efficiency evaluation are greatly improved, the theoretical basis of the military vehicle efficiency evaluation is enriched, and the practical value and the reference value of the evaluation result are higher.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the steps of the method of the present invention.
Detailed Description
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Referring to FIG. 1, the present invention provides a military vehicle performance evaluation method, which comprises the following steps:
step 1, obtaining information of a vehicle to be evaluated: and acquiring basic information corresponding to the military vehicle to be evaluated currently, wherein the basic information comprises a vehicle type and a performance index.
In one particular embodiment, the performance indicators of the military vehicle being evaluated include, but are not limited to, loss performance indicators, driving performance indicators, and environmental compliance indicators;
the loss performance indexes include but are not limited to the maximum bearing impact force and the maximum bearing impact duration corresponding to each part of the military vehicle to be evaluated, and the allowable wear area and the allowable wear thickness corresponding to each driving range of each tire, 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 maximum running speed, acceleration duration, maximum wading depth, and corresponding rated approach angle, departure angle, maximum roll inclination, minimum ground clearance and vibration frequency in various types of terrains;
it should be noted that various types of terrains include deserts, mountainous areas, swamps, and the like;
the environmental adaptation indexes include, but are not limited to, a maximum adaptation temperature, a minimum adaptation temperature, a rated start time, a rated operation current and a rated operation voltage corresponding to the maximum adaptation temperature and the minimum adaptation temperature;
step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle type corresponding to a military vehicle to be evaluated currently, and setting a vehicle simulation scene and each simulation experiment group corresponding to each vehicle simulation scene based on a performance index corresponding to the military vehicle to be evaluated currently, wherein the vehicle simulation scene comprises a loss simulation scene, a driving simulation scene and an environment simulation scene;
exemplarily, 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 duration corresponding to each part and the allowable wear area and the allowable wear thickness corresponding to each driving range of each tire from the loss performance indexes;
setting an impact bearing experiment group corresponding to each part based on the maximum bearing impact force and the maximum bearing impact duration corresponding to each part of the military vehicle to be evaluated;
constructing each driving range abrasion experimental group based on the corresponding allowable abrasion area and the allowable abrasion thickness of each driving range of each tire of the military vehicle to be evaluated currently, and constructing each simulation experimental group corresponding to a loss simulation scene by using the impact bearing experimental group corresponding to each part and the abrasion experimental group corresponding to each driving range;
illustratively, 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 maximum running speed, acceleration duration, maximum wading depth, corresponding rated approach angle, departure angle, maximum roll inclination, minimum ground clearance and vibration frequency from the running indexes;
setting a vehicle speed experimental group based on the corresponding rated maximum running vehicle speed and acceleration duration of the military vehicle to be evaluated;
setting obstacle crossing experimental groups of various types of terrains based on corresponding rated approach angles, departure angles, maximum roll inclinations, minimum ground clearances and vibration frequencies of the military vehicles to be evaluated in various types of terrains;
setting a wading experiment group based on the rated maximum wading depth corresponding to the military vehicle to be evaluated at present, and driving a vehicle speed experiment group, various terrain obstacle crossing experiment groups and the wading experiment group to be simulated in each simulation experiment group corresponding to a simulation scene;
in another example, 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:
extracting environment adaptive indexes from corresponding performance indexes of the military vehicle to be evaluated at present, constructing an environment simulation scene, extracting the highest adaptive temperature and the lowest adaptive temperature from the environment adaptive indexes, setting a highest temperature experiment group and a lowest temperature experiment group, and forming each simulation experiment group corresponding to the environment simulation scene;
step 3, acquiring and analyzing loss simulation scene simulation data: the system 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 marking as beta;
specifically, the method comprises the steps of collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a loss simulation scene, wherein the specific collection process comprises the following steps:
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 duration corresponding to the vehicle simulation model when the defects appear, and respectively recording the impact force and the accumulated impact duration as N i And T i I denotes the site number, i =1,2.
It should be noted that the impact duration test carried in the impact carrying test group is a fixed impact test, that is, the fixed impact is used for impact test;
positioning a wear experiment group corresponding to each driving range from each simulation experiment group of the vehicle simulation model in a loss simulation scene, collecting the wear area and the wear thickness corresponding to each tire of the vehicle simulation model in the wear experiment group corresponding to each driving range, and respectively recording as M t r And H t r T represents a mileage number, t =1,2,... G, r represents a tire number, r =1,2,... P;
taking the impact force and accumulated impact duration corresponding to the defects of each part of the vehicle simulation model when each part of the corresponding impact bearing experiment group appears, and the wear area and wear thickness corresponding to each tire in each driving range as the simulation data corresponding to each simulation experiment group under 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 the impact force corresponding to the damage of the vehicle simulation model in the corresponding impact bearing experiment group of each part and the accumulated impact duration corresponding to the damage, and analyzing the impact duration according to an analysis formula
Analyzing to obtain corresponding impact loss performance standard index epsilon 1 of the military vehicle to be evaluated, wherein a1 and a2 are respectively expressed as proportion weight, N 'corresponding to set impact force and impact duration' i 、T′ i Respectively expressed as the maximum bearing impact force, the maximum bearing impact duration 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 wear area and the wear thickness corresponding to each tire of the vehicle simulation model in each driving range, and analyzing the wear area and the wear thickness according to an analysis formula
Analyzing to obtain a military vehicle to be evaluated corresponding running loss performance standard index epsilon 2,M' tr 、H′ tr Expressed as allowable wear area and allowable wear thickness corresponding to the r-th tire in the t-th mileage, a3 and a4 are expressed as ratio weights corresponding to the set tire wear area and tire wear thickness, respectively, and σ 1 Evaluating a correction factor for the set driving loss;
according to analytical formula
Analyzing to obtain loss performance standard index beta corresponding to the military vehicle to be evaluated, wherein tau 1 and tau 2 are respectively expressed as the occupation corresponding to the set impact loss and the running lossSpecific weight factor, e is expressed as a natural constant;
step 4, collecting and analyzing simulation data of the driving simulation scene: the system is used for acquiring simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, analyzing and obtaining a driving performance standard index corresponding to the military vehicle to be evaluated, and marking as phi;
specifically, the method comprises the steps of collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, wherein the specific collection process comprises the following steps:
positioning a vehicle speed experiment group from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and acquiring the corresponding maximum vehicle speed and acceleration duration of the vehicle simulation model in the vehicle speed experiment, which are respectively recorded as v and T Adding ；
Positioning various terrain obstacle crossing experiment groups from various simulation experiment groups of the vehicle simulation model in a driving simulation scene, and acquiring corresponding approach angle, departure angle, maximum roll inclination, minimum ground clearance and vibration frequency of the vehicle simulation model in the various terrain obstacle crossing experiment groups, which are respectively recorded as alpha d 、θ d 、
l d And f d D denotes the terrain type number, d =1,2, ·. q;
positioning wading experiment groups from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and acquiring the corresponding maximum wading depth of the vehicle simulation model in the wading experiment groups and recording the maximum wading depth as L;
taking the highest speed and the acceleration duration of the vehicle simulation model in a vehicle speed experiment, the corresponding approach angle, departure angle, maximum roll-off, minimum ground clearance and vibration frequency in each type of terrain obstacle crossing experiment group and the corresponding maximum wading depth in the wading experiment group as simulation data corresponding to each simulation experiment group 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 corresponding maximum speed and the corresponding acceleration duration of the vehicle simulation model in the vehicle speed experiment, and analyzing the maximum speed and the acceleration duration according to an analysis formula
Analyzing to obtain the corresponding speed performance standard index mu 1,v ' and T ' of the military vehicle to be evaluated ' Adding Respectively setting a rated maximum running speed and a rated acceleration duration of the military vehicle to be evaluated, wherein b1 and b2 are respectively proportional weight factors corresponding to the set speed and the set acceleration duration;
extracting the corresponding approach angle, departure angle, maximum roll-over, minimum ground clearance and vibration frequency of the vehicle simulation model in the obstacle crossing experimental group of various terrains, and analyzing the angles and the minimum ground clearance by an analysis formula
Analyzing to obtain the corresponding obstacle crossing performance standard index mu 2, alpha 'of the military vehicle to be evaluated' d 、θ′ d 、
l′ d And f' d Respectively representing the rated approach angle, departure angle, maximum roll angle, minimum ground clearance and vibration frequency of the military vehicle to be evaluated in the d-th type terrain, respectively representing the ratio weights corresponding to the set approach angle, departure angle, maximum roll angle, minimum ground clearance and vibration frequency by b3, b4, b5, b6 and b7, respectively, and omega is a set obstacle crossing performance evaluation correction factor;
extracting the corresponding maximum wading depth of the vehicle simulation model in the wading experiment group through an analysis formula
Analyzing to obtain a wading performance standard index mu 3,L' corresponding to the military vehicle to be evaluated as a rated maximum wading depth corresponding to the military vehicle to be evaluated;
according to analytical formula
Analyzing to obtain the evaluationThe driving performance standard index phi, lambda 1, lambda 2 and lambda 3 corresponding to the military vehicle are expressed as evaluation compensation factors corresponding to set speed performance, obstacle crossing performance and wading performance;
step 5, collecting and analyzing the environment simulation scene simulation data: the system is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in an environment simulation scene, analyzing and obtaining an environment adaptability standard index corresponding to the military vehicle to be evaluated, and recording the index as delta;
specifically, the simulation data corresponding to each simulation experiment group of the vehicle simulation model under the environment simulation scene is collected and analyzed to obtain the environmental adaptability standard index corresponding to the military vehicle to be evaluated, and the specific implementation process is as follows:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model in an 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 the starting time, the average running current and the average running voltage as t Height of 、I High (a) 、U Height of Meanwhile, collecting simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group;
extracting the corresponding rated starting time, 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;
by maximum temperature adaptation analysis formula
And analyzing to obtain high-temperature adaptability standard index psi 1, c2 and c3 corresponding to the military vehicle to be evaluated, wherein the index is expressed as a correction factor t 'corresponding to set starting time, running current and running voltage' Height of 、I′ Height of 、U′ Height of Respectively representing the rated starting time, the rated running current and the rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on the simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group, the low-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated is obtained through the same analysis according to the analysis mode of the high-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated and is marked as psi 2;
analyzing according to an analysis formula delta = e eta 1 psi 1+ eta 2 psi 2 to obtain an environmental adaptation performance standard index delta corresponding to the military vehicle to be evaluated, wherein eta 1 and eta 2 are evaluation correction factors corresponding to high-temperature adaptation and low-temperature adaptation respectively;
step 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 index corresponding to the military vehicle to be evaluated, and matching and comparing the comprehensive performance standard index with the performance standard index range corresponding to each performance evaluation level to obtain the performance evaluation level of the military vehicle to be evaluated;
specifically, the specific calculation formula of the comprehensive effectiveness standard-reaching index corresponding to the military vehicle to be evaluated is
X represents a comprehensive efficiency standard index corresponding to the military vehicle to be evaluated, R1, R2 and R3 respectively represent proportion weight factors corresponding to set loss performance, running performance and environmental adaptation performance, and zeta is set evaluation compensation weight;
and 7, feeding back the performance evaluation result of the vehicle to be evaluated: and feeding back the performance evaluation grade corresponding to the military vehicle to be evaluated to the performance evaluation manager of the military vehicle to be evaluated.
According to the embodiment of the invention, a vehicle simulation model is constructed according to basic information corresponding to the military vehicle to be evaluated, and each simulation experiment group corresponding to the vehicle simulation scene and each vehicle simulation scene is set, and the loss performance, the running performance and the environment adaptability performance of the military vehicle are evaluated based on the corresponding experiment data of 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, on one hand, the limitation problem existing in the prior art is effectively solved, the multi-dimensional evaluation of the military vehicle efficiency is realized, the reliability and the reference of the military vehicle efficiency evaluation result are greatly improved, and meanwhile, the powerful guarantee is provided for the stability and the safety of the military vehicle in the subsequent use process; on one hand, by evaluating the environmental adaptability of the military vehicle, the usability and the feasibility of the military vehicle in different environments and different areas are guaranteed to the greatest extent, the economic loss caused by putting into use in the inapplicable areas 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 greatly reduced; on the other hand, through multi-dimensional evaluation, the evaluation requirements of the military vehicle under different use scenes are effectively met, the accuracy, the reasonability and the scientificity of the efficiency evaluation of the military vehicle are greatly improved, the theoretical basis of the efficiency evaluation of the military vehicle is enriched, and the practical value and the reference value of an evaluation result are high.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (10)
1. A military vehicle performance evaluation method, characterized by: the method comprises the following steps:
step 1, obtaining information of a vehicle to be evaluated: acquiring basic information corresponding to the military vehicle to be evaluated currently, wherein the basic information comprises a vehicle type and a performance index;
step 2, building simulation information of the vehicle to be evaluated: obtaining a vehicle simulation model based on a vehicle type corresponding to a military vehicle to be evaluated currently, and setting a vehicle simulation scene and each simulation experiment group corresponding to each vehicle simulation scene based on a performance index corresponding to the military vehicle to be evaluated currently, wherein the vehicle simulation scene comprises a loss simulation scene, a driving simulation scene and an environment simulation scene;
step 3, acquiring and analyzing loss simulation scene simulation data: the system 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 marking as beta;
step 4, collecting and analyzing simulation data of the driving simulation scene: the system is used for acquiring simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, analyzing and obtaining a driving performance standard index corresponding to the military vehicle to be evaluated, and marking as phi;
step 5, collecting and analyzing simulation data of the environment simulation scene: the system is used for collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in an environment simulation scene, analyzing and obtaining an environment adaptability standard index corresponding to the military vehicle to be evaluated, and recording the index as delta;
step 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 index corresponding to the military vehicle to be evaluated, and matching and comparing the comprehensive performance standard index with the performance standard index range corresponding to each performance evaluation level to obtain the performance evaluation level of the military vehicle to be evaluated;
and 7, feeding back the performance evaluation result of the vehicle to be evaluated: and feeding back the performance evaluation grade corresponding to the military vehicle to be evaluated to the performance evaluation manager of the military vehicle to be evaluated.
2. The military vehicle performance evaluation method 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 the 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 duration corresponding to each part and the allowable wear area and the allowable wear thickness corresponding to each driving range of each tire from the loss performance indexes;
setting an impact bearing experiment group corresponding to each part of the military vehicle to be evaluated based on the maximum bearing impact force and the maximum bearing impact duration corresponding to each part;
and constructing each driving range abrasion experimental group based on the corresponding allowable abrasion area and the allowable abrasion thickness of each driving range of each tire of the military vehicle to be evaluated currently, and constructing each simulation experimental group corresponding to the loss simulation scene by using the impact bearing experimental group corresponding to each part and the abrasion experimental group corresponding to each driving range.
3. The military vehicle performance evaluation method of claim 1, wherein: 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 maximum running speed, acceleration duration, maximum wading depth, corresponding rated approach angle, departure angle, maximum roll inclination, minimum ground clearance and vibration frequency from the running indexes;
setting a vehicle speed experimental group based on the corresponding rated maximum running vehicle speed and acceleration duration of the military vehicle to be evaluated;
setting obstacle crossing experimental groups of various types of terrains based on corresponding rated approach angles, departure angles, maximum roll inclinations, minimum ground clearances and vibration frequencies of the military vehicles to be evaluated in various types of terrains;
and setting a wading experiment group based on the rated maximum wading depth corresponding to the military vehicle to be evaluated at present, and driving the vehicle speed experiment group, the terrain obstacle crossing experiment groups of various types and the wading experiment group to each simulation experiment group corresponding to the simulation scene.
4. The military vehicle performance evaluation method of claim 1, wherein: in the step 2, an 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 group and a lowest temperature experiment group, and forming each simulation experiment group corresponding to the environment simulation scene.
5. The military vehicle performance evaluation method of claim 2, wherein: the method comprises the following steps of collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a loss simulation scene, wherein the specific collection process comprises the following steps:
positioning impact bearing experiment groups corresponding to all parts from each simulation experiment group of the vehicle simulation model in a loss simulation scene, collecting impact force corresponding to the impact bearing experiment groups corresponding to all parts of the vehicle simulation model when defects appear and accumulated impact duration corresponding to the impact bearing experiment groups when the defects appear, and respectively recording the impact force and the accumulated impact duration as N i And T i I denotes the site number, i =1,2.
Positioning a wear experiment group corresponding to each driving range from each simulation experiment group of the vehicle simulation model in a loss simulation scene, collecting the wear area and the wear thickness corresponding to each tire of the vehicle simulation model in the wear experiment group corresponding to each driving range, and respectively recording as M t r And H t r T represents a mileage number, t =1,2,... G, r represents a tire number, r =1,2,... P;
and taking the impact force and the accumulated impact duration corresponding to the defects of each part of the vehicle simulation model in the corresponding impact bearing experiment group of each part, and the wear area and the wear thickness corresponding to each tire in each driving range as the simulation data corresponding to each simulation experiment group in the loss simulation scene.
6. The military vehicle performance evaluation method of claim 5, wherein: the analysis is carried out to obtain the loss performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the impact force corresponding to the damage of the vehicle simulation model in the corresponding impact bearing experiment group of each part and the accumulated impact duration corresponding to the damage, and analyzing the impact duration according to an analysis formula
Analyzing to obtain the corresponding impact loss performance of the military vehicle to be evaluatedThe index numbers epsilon 1, a1 and a2 are respectively expressed as the proportion weight, N 'corresponding to the set impact force and impact duration' i 、T′ i Respectively expressed as the maximum load impact force and the maximum load impact duration, 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 wear area and the wear thickness corresponding to each tire of the vehicle simulation model in each driving range, and analyzing the wear area and the wear thickness according to an analysis formula
Analyzing to obtain a military vehicle to be evaluated corresponding driving loss performance standard index epsilon 2,M' tr 、H′ tr Expressed as allowable wear area and allowable wear thickness corresponding to the r-th tire in the t-th mileage, a3 and a4 are expressed as ratio weights corresponding to the set tire wear area and tire wear thickness, respectively, and σ 1 Estimating a correction factor for the set running loss;
according to analytical formula
And analyzing to obtain loss performance standard index beta corresponding to the military vehicle to be evaluated, wherein tau 1 and tau 2 are respectively expressed as proportion weight factors corresponding to the set impact loss and the set driving loss, and e is expressed as a natural constant.
7. The military vehicle performance evaluation method of claim 3, wherein: the method comprises the following steps of collecting simulation data corresponding to each simulation experiment group of the vehicle simulation model in a driving simulation scene, wherein the specific collection process comprises the following steps:
positioning a vehicle speed experiment group from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and collecting the corresponding maximum vehicle speed and acceleration duration of the vehicle simulation model in the vehicle speed experiment;
positioning various terrain obstacle crossing experimental groups from various simulation experimental groups of a vehicle simulation model in a driving simulation scene, and acquiring corresponding approach angles, departure angles, maximum side inclinations, minimum ground clearance and vibration frequencies of the vehicle simulation model in the various terrain obstacle crossing experimental groups;
positioning wading experiment groups from each simulation experiment group of the vehicle simulation model in a driving simulation scene, and collecting the corresponding maximum wading depth of the vehicle simulation model in the wading experiment groups;
and taking the highest speed and the acceleration duration of the vehicle simulation model in the vehicle speed experiment, the corresponding approach angle, departure angle, maximum roll-off, minimum ground clearance and vibration frequency in each type of terrain obstacle crossing experiment group and the corresponding maximum wading depth in the wading experiment group as the simulation data corresponding to each simulation experiment group in the driving simulation scene.
8. The military vehicle performance evaluation method of claim 7, wherein: the analysis is carried out to obtain the running performance standard index corresponding to the military vehicle to be evaluated, and the specific analysis process comprises the following steps:
extracting the highest speed and the acceleration duration corresponding to the vehicle simulation model in a vehicle speed experiment, and analyzing by an analysis formula to obtain a speed performance standard index corresponding to the military vehicle to be evaluated, and recording the speed performance standard index as mu 1;
extracting an approach angle, a departure angle, a maximum roll-over degree, a minimum ground clearance and a vibration frequency of the vehicle simulation model in various terrain obstacle crossing experimental groups, and further obtaining an obstacle crossing performance standard index corresponding to the military vehicle to be evaluated through analysis formula analysis, and recording the index as mu 2;
extracting the maximum wading depth of the vehicle simulation model in the wading experiment group, and further analyzing by an analysis formula to obtain a wading performance standard index corresponding to the military vehicle to be evaluated, and recording the index as mu 3;
according to analytical formula
And analyzing to obtain a driving performance standard index phi corresponding to the military vehicle to be evaluated, wherein the lambda 1, the lambda 2 and the lambda 3 are expressed as evaluation compensation factors corresponding to the set speed performance, obstacle crossing performance and wading performance.
9. The military vehicle performance evaluation method of claim 4, wherein: the method comprises the following steps of collecting simulation data corresponding to each simulation experiment group of a vehicle simulation model in an environment simulation scene, and analyzing to obtain an environmental adaptability standard index corresponding to the military vehicle to be evaluated, wherein the specific execution process comprises the following steps:
positioning a highest temperature experiment group from each simulation experiment group of the vehicle simulation model in an 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 the starting time, the average running current and the average running voltage as t Height of 、I Height of 、U High (a) Meanwhile, collecting simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group;
extracting the corresponding rated starting time, 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;
by maximum temperature adaptation analysis formula
And analyzing to obtain high-temperature adaptability standard index psi 1, c2 and c3 corresponding to the military vehicle to be evaluated, wherein the index is expressed as a correction factor t 'corresponding to set starting time, running current and running voltage' Height of 、I′ Height of 、U′ Height of Respectively representing the rated starting time, the rated running current and the rated running voltage of the military vehicle to be evaluated at the highest adaptive temperature;
based on the simulation data corresponding to the vehicle simulation model in the lowest temperature experimental group, the low-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated is obtained through the same analysis according to the analysis mode of the high-temperature adaptability standard-reaching index corresponding to the military vehicle to be evaluated and is marked as psi 2;
according to analytical formula δ = e η1*ψ1+η2*ψ2 The environmental adaptability standard index delta corresponding to the military vehicle to be evaluated is obtained through analysis, eta 1 and eta 2 respectively correspond to high-temperature adaptation and low-temperature adaptationThe estimated correction factor of (1).
10. The military vehicle performance evaluation method of claim 1, wherein: the specific calculation formula of the comprehensive effectiveness standard-reaching index corresponding to the military vehicle to be evaluated is
X represents the comprehensive performance standard index corresponding to the military vehicle to be evaluated, R1, R2 and R3 respectively represent the proportion weight factors corresponding to the set loss performance, driving performance and environmental adaptation performance, and zeta is the set evaluation compensation weight.
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