CN117291008A - Method for making test section and applying stress - Google Patents
Method for making test section and applying stress Download PDFInfo
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Abstract
The invention discloses a method for making a test section and applying stress, which is used for researching and determining a weapon equipment reliability index system; analyzing the task section of the typical weapon equipment; determining a test section making method of typical weapon equipment; analyzing a stress application method of typical army weaponry; according to the existing standard and investigation anti-air defense reverse weapon and ground pressing weapon similar equipment full life cycle combat mission characteristics and use requirements, the invention comprehensively analyzes and researches life sections, combat mission sections and training mission sections, determines factors of mission stage time, mission activities and environmental conditions, refers to the existing test standard according to the life sections and mission sections, researches and formulates a reliability test section, and simultaneously determines factors of test scheme, stress type, stress intensity, test time and the like according to the formulated reliability test section, and researches and determines a reliability test section application method.
Description
Technical Field
The invention relates to the technical field of military metering detection, in particular to a method for making a test section and applying stress.
Background
Along with the fact that the reliability test is not separated from the test section, the reliability test section is required to simulate the most main environmental stress experienced by a product in actual use as truly as possible, the reliability test section is the largest difference between the reliability test section and environmental identification test conditions, the basic steps of formulating the reliability verification test section are to determine the corresponding environmental section according to the service life section of the product, then the environmental section is converted into the test section, for the product which only executes one type of task, the task section and the environmental section and the test section are in one-to-one correspondence, and for the product which executes the multitasking section, the formulation of a synthesized test section is required;
in the actual test process of the current anti-air anti-pilot weapon and the ground pressing weapon, the requirements of the test are not met due to the establishment of the test section and the stress application method, so that the limitation of the test process of the weapon equipment is large, meanwhile, the reliability test section suitable for the identification test cannot be established due to the incapability of establishing the factors such as the type of the applied stress, the strength and the time, so that the task section research of the weapon equipment is influenced, and the subsequent reliability test is further influenced.
Disclosure of Invention
The invention provides a method for making a test section and applying stress, which can effectively solve the problems that in the prior art, the current air defense anti-pilot weapon and ground pressing weapon cannot meet the test requirements in the actual test process, so that the test process of the weapon equipment is limited greatly, and meanwhile, the factors such as the type of applied stress, the intensity and the time cannot be determined due to the fact that the reliability test section suitable for the identification test cannot be made, so that the task section research of the weapon equipment is influenced, and the subsequent reliability test is influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the method for preparing the test section and applying the stress is required to meet the test requirements of an air defense anti-pilot weapon and a ground pressing weapon, and is mainly used for preparing a reliability test section suitable for an identification test and determining the stress application according to the mission of equipment and the operational training operation flow of army combat;
the method specifically comprises the following steps:
s1, researching and determining a weapon equipment reliability index system;
s2, analyzing a task section of the typical weapon equipment;
s3, determining a test section making method of typical weapon equipment;
s4, analyzing a stress application method of typical army weaponry;
s5, verifying the case of the weapon equipment reliability test.
According to the above technical solution, in the S1, the research and determination of the weapon equipment reliability index system mainly refers to combining the mission task, the typical mission profile and the structural composition of the equipment, determining the reliability index system by adopting the life profile and the mission profile, and establishing the general quality characteristic index system based on the operational characteristics and the composition characteristics of the air defense anti-guided weapon and the typical ground pressing weapon equipment, and finally establishing the reliability index system;
the weapon equipment selects an anti-air anti-guiding system, and the anti-air anti-guiding missile system has the characteristics of large size and complexity, mainly comprises missiles, a launch vehicle, a guarantee system and an electronic command system, and requires the missiles to be normally and reliably used after long-term storage according to mission, combat areas and combat modes, and a reliability index system of the anti-air anti-guiding missile system equipment is primarily analyzed.
According to the above technical scheme, the reliability index system specifically includes:
a. the launching reliability and the flight reliability describe the working reliability from the launching to the detonation of the missile;
b. service life, service life level, storage reliability, reliability of the missile during special storehouse and on-site storage, wherein the service life is described from delivery to retirement of the missile;
c. accumulating the power-on time and the frequency of the missile, describing the reliability level of power-on work during the deployment duty period of the missile, and describing the reliability level of the missile in a duty state maintained on a deployment site;
d. an average time between failures MTBF describing the basic reliability of the operation of the ground equipment;
e. the mean time between severe faults mtbf describes the task reliability of the ground equipment to complete the task profile specifying the event timing.
According to the above technical scheme, in S1, the test modes for checking the performance of the device in the state identification stage include: a-real-time test, n-simulation test, C-comprehensive evaluation, D-theoretical analysis and E-data acquisition;
the anti-air-defense anti-pilot missile system is important equipment, the sample size of the input live missile for launching and flying is limited, a test identification mode is developed by adopting a standard program according to the mode of carrying out performance identification test, combat test and in-service assessment test successively, the aim and the starting point are to verify and evaluate the minimum reliability quantitative index requirement and the qualitative requirement specified by the total development requirement, and the reliability test project, the conclusion form and the giving time of the anti-air-defense anti-pilot missile system are determined on the basis of fully considering the actual operation factors of supporting guarantee work, test time period, sample size and test consumption;
the project is used for researching reliability tests at different stages, and specifically comprises performance tests, combat tests and in-service assessment, and during project implementation, assessment index systems at different stages are respectively constructed, a research test method is determined, and on the basis of reliability research of an air defense anti-guided missile system, the reliability of other typical air defense anti-guided missiles and ground pressing weapons is researched.
According to the above technical solution, in S2, the task section is a time sequence description of events and environments experienced by the weapon equipment in the time of completing the specified task;
by summarizing and analyzing the mission profile of various typical army weaponry, a normalized mission profile template of the typical army weaponry is researched and given, the profile contains various element information of mission phase time, mission activity and environmental conditions, and the mission profile of the weaponry is generally divided into a combat mission profile and a training mission profile.
According to the technical scheme, the fight task section refers to the fight task section which is analyzed and summarized by researching typical air defense anti-guided weapons and ground pressing weapons, and three typical types of rocket cannon fight are generally adopted as an example: firstly, the field battle is defended and fighted, secondly, the field battle is defended and fighted, and thirdly, the field battle is attacked and fighted;
different combat tasks have different characteristics, the firm battle field defends combat, the time is long, the bomb consumption is large, the field battle field combat intensity is large, the mobility requirement is high;
fight mission profile typical events include the following routes:
preparation of a receiving task site, marching, conveying, marching, maneuvering and evacuating a battlefield;
the method comprises the steps of preparation of a receiving task site, marching, aggregation of an aggregation region, preparation of a standby array site, emission of an emission array site, maneuvering and evacuation of a battlefield;
the preparation of the leading task site comprises the steps of checking, correcting, maintaining and maintaining equipment, so that the technical state of the equipment is good, when the distance from the site to the staging area is long, a marching-conveying-marching mode is generally adopted, marching is divided into hiking marching, motorcyclizing marching and caterpillar marching, conveying comprises railway transportation, water transportation and air transportation, and the conveying mode depends on factors such as the distance between the site and the staging area, equipment characteristics and the like;
when the distance from the residence to the staging area is relatively short, taking motorcycle marching, checking and maintaining the weaponry in the staging area, and finishing the combat preparation of the weaponry, wherein the time is generally from a few hours to a few days;
standby array preparation: in general, the technical battle is also called as a technical battle field, necessary technical inspection is further carried out on the weapon equipment, ammunition is prepared to be filled, all battles are prepared, generally, at least one standby battle field exists in one battle, and the standby battle field is hidden and is not easy to detect;
immediately shooting preparation is carried out after the shooting battle field is entered, the gun is adjusted in place, the fire striking is carried out, the time from entering the shooting battle field to withdrawing the shooting battle field is not more than 6 minutes, a plurality of shooting battles are needed for one time, one shooting battle field is used for one time, and one ammunition firing is carried out;
maneuver generally refers to marching maneuver in a battle area, and for one battle, maneuver between a transmitting array, a standby array and a centralized area is referred to, wherein maneuver mileage is generally 45 km-300 km depending on the strength of a battle task;
the environment in the task section is natural environment, the reliability of completing the firing task of the rocket gun is generally not lower than 0.9 according to the requirements of the operational task within the allowable range of the technical performance, the rocket gun cannot fire during running, namely, when the rocket gun is in a marching maneuver, the height and direction follow-up system cannot work, and the related system can also be in an inactive state, so that the operational maneuvering reliability requirement on the rocket gun is independently provided, the reliability of completing the marching maneuvering task in one battle is generally not lower than 0.9, and the basic reliability of the chassis of the rocket gun is basically determined due to the fact that the chassis of the rocket gun is usually a chassis which is shaped in a military series, and therefore, when the chassis is selected, the use requirements on the marching maneuvering reliability of the rocket gun are also considered besides the use requirements on the total weight and the load of the chassis.
According to the technical scheme, the training task section refers to the training state that the weapon equipment is in the army most of the time, and the abrasion and loss generated to the equipment in each single item and comprehensive training are important factors affecting the service life and reliability of the equipment;
in general, the weapon equipment is not allowed to be operated and trained with faults at ordinary times, no matter what faults occur, the faults should be removed, and the weapon equipment can be trained after the weapon equipment is recovered to be normal, so that the reliability requirement of a training task is close to the basic reliability, the requirement of the training task should be considered when the basic reliability index is determined, and typical events in the section of the training task generally comprise the following flows:
the method comprises the steps of cannonball storage, marching, operation training and firing practice;
the storage of the cannon comprises storage of the cannon, technical inspection, maintenance, detection and adjustment, and the storage conditions are natural environments: according to the annual training requirement of armies, annual marching mileage is 1000km;
the operation training is generally divided into single training and comprehensive training, and the training content generally comprises marching combat conversion, combat conversion, fire control system operation, high-low direction machine operation, sighting device operation, ammunition filling operation and sighting process training;
ball firing is typically performed once a year according to army annual training requirements.
According to the above technical solution, in S3, the method for determining a test section of a typical army weapon device is based on a standard task section, and the method for establishing a test section is mainly comprised of determining a typical stress type, determining an equivalent vibration load spectrum, determining an equivalent temperature condition, and determining an equivalent working condition, and provides a reliability test section of a typical army weapon device, and is specifically as follows:
firstly, selecting the type of the environmental stress applied in the test, comprehensively analyzing the environmental conditions expected to be experienced by the tested product, judging which environmental stresses are most sensitive to the reliability of the product, and searching for the stress with larger influence on the environmental stress to form the environmental stress conditions in the test process;
for most electronic and electromechanical products, the environmental stress applied in the test is mainly temperature, vibration and humidity, wherein the temperature specifically comprises high temperature and low temperature change rate, the environmental stress has the greatest influence on the reliability of the product, and other stresses such as low air pressure stress when the product is sensitive to low air pressure are applied to some special products;
secondly, the design of a vibration load spectrum is determined, the vibration stress is mainly related to the field use type of equipment, the installation position of a product and the expected use condition, the size of the vibration stress can be obtained through an actual measurement mode, a typical vibration load spectrum is drawn based on actual measurement data, if the actual measurement condition is not met, the estimated stress can be selected, namely, vibration data measured when similar tasks are executed by similar purpose products are selected, and if the estimated data is not met, reference vibration spectrum data provided by a standard is selected;
the temperature stress is determined according to the regional climate conditions and the use condition of the platform environment of the actual use of the product.
According to the above technical solution, in S4, the stress applying method includes the following cases:
for most products, various stresses should be applied according to the stress type and magnitude of the determined test section in the same test time and space, and currently, for the reliability test of conventional temperature, humidity and vibration and electric stress, the stress application method has preliminary research application, and if other stress types need to be considered through analysis of weapon equipment, the comprehensive stress application method and equipment including low air pressure need to be researched;
for the test without the condition of applying the comprehensive stress, the application of the combined stress can be considered, and the application is performed according to the type, the size, the combination sequence and the cycle number of the stress, and the method has better applicability to the reliability test containing some special stress types, but needs to study the influence of the application of different sequences to obtain more accurate test results.
According to the above technical solution, in S5, the case verification of the weapon equipment reliability test refers to verifying the feasibility of the reliability stress profile study and the stress application method, and a certain large-scale equipment is to be selected to perform the reliability test case verification, and the MTBF index is checked, wherein the MTBF index of the selected large-scale equipment is not less than 100 hours;
the reliability comprehensive stress profile is designed aiming at the selected large-scale equipment, the running test is carried out before the test to determine the running reliability, the reliability test is carried out after the running reliability is finished, the running reliability test can be used for replacing the vibration stress of the reliability test, and the stress application is carried out by adopting the whole car temperature and humidity test box.
Compared with the prior art, the invention has the beneficial effects that:
according to the existing standard and investigation anti-air defense reverse weapon and ground pressing weapon similar equipment full life cycle combat mission characteristics and use requirements, the invention comprehensively analyzes and researches life sections, combat mission sections and training mission sections, determines factors of mission stage time, mission activities and environmental conditions, refers to the existing test standard according to the life sections and mission sections, researches and formulates a reliability test section, and simultaneously determines factors of test scheme, stress type, stress intensity, test time and the like according to the formulated reliability test section, and researches and determines a reliability test section application method;
in addition, by combining equipment mission tasks, typical mission profiles and structural components, a life profile and a mission profile are adopted to determine a reliability index system, so that the establishment of the test profile and a stress application method meet the test requirements of the anti-air anti-pilot weapon and the ground pressing weapon, and the establishment of a reliability test profile suitable for identification test is facilitated, thereby determining the stress application method, solving the defect that the establishment of the test profile and the stress application method cannot meet the test requirements in the actual test process of the current anti-air anti-pilot weapon and the ground pressing weapon, and avoiding influencing the subsequent reliability test.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a flow chart of the steps of the method of the present invention;
FIG. 2 is a schematic illustration of a typical event of a combat mission profile of the present invention;
FIG. 3 is a schematic representation of a typical event within the training task profile of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1, the present invention provides a technical solution, a method for making a test section and applying stress, where the method for making a test section and applying stress needs to meet test requirements of an air defense anti-pilot weapon and a ground pressing weapon, and a method for making a reliability test section suitable for an identification test and determining stress application is mainly based on task mission of equipment and army combat training operation flow;
the method specifically comprises the following steps:
s1, researching and determining a weapon equipment reliability index system;
s2, analyzing a task section of the typical weapon equipment;
s3, determining a test section making method of typical weapon equipment;
s4, analyzing a stress application method of typical army weaponry;
s5, verifying the case of the weapon equipment reliability test.
Based on the technical scheme, in S1, research and determination of a weapon equipment reliability index system mainly refers to combining equipment mission tasks, typical mission profiles and structural components, adopting life profiles and mission profiles to determine the reliability index system, and establishing a general quality characteristic index system based on operational characteristics and composition characteristics of an air defense anti-guided weapon and typical ground pressing weapon equipment, and finally establishing the reliability index system;
taking an air defense anti-guiding missile system as an example, the air defense anti-guiding missile system has the characteristics of large size and complexity, mainly comprises a missile, a launching vehicle, a guarantee system and an electronic command system, and requires the missile to be normally and reliably used after long-term storage according to mission, combat zone and combat mode, and a reliability index system of equipment of the air defense anti-guiding missile system is primarily analyzed.
Based on the above technical scheme, the reliability index system specifically includes:
a. the launching reliability and the flight reliability describe the working reliability from the launching to the detonation of the missile;
b. service life, service life level, storage reliability, reliability of the missile during special storehouse and on-site storage, wherein the service life is described from delivery to retirement of the missile;
c. accumulating the power-on time and the frequency of the missile, describing the reliability level of power-on work during the deployment duty period of the missile, and describing the reliability level of the missile in a duty state maintained on a deployment site;
d. an average time between failures MTBF describing the basic reliability of the operation of the ground equipment;
e. the average severe fault interval time MTBCF describes the task reliability of the ground equipment for completing the task profile to define event time sequences;
the reliability index system is specifically shown in the following table:
based on the above technical scheme, in S1, the test modes for checking the performance of the equipment in the state identification stage include: a-real-time test, B-simulation test, C-comprehensive evaluation, D-theoretical analysis and E-data acquisition;
the anti-air-defense anti-pilot missile system is important equipment, the sample size of the input live missile for launching and flying is limited, a test identification mode is developed by adopting a standard program according to the mode of carrying out performance identification test, combat test and in-service assessment test successively, the aim and the starting point are to verify and evaluate the minimum reliability quantitative index requirement and the qualitative requirement specified by the total development requirement, and the reliability test project, the conclusion form and the giving time of the anti-air-defense anti-pilot missile system are determined on the basis of fully considering the actual operation factors of supporting guarantee work, test time period, sample size and test consumption;
the project is used for researching reliability tests at different stages, and specifically comprises performance tests, combat tests and in-service assessment, and during project implementation, assessment index systems at different stages are respectively constructed, a research test method is determined, and on the basis of reliability research of an air defense anti-guided missile system, the reliability of other typical air defense anti-guided missiles and ground pressing weapons is researched.
Based on the above technical solution, in S2, the task profile is a time sequence description of events and environments experienced by the weapon equipment in the time of completing the specified task;
by summarizing and analyzing the mission profile of various typical army weaponry, a normalized mission profile template of the typical army weaponry is researched and given, the profile contains various element information of mission phase time, mission activity and environmental conditions, and the mission profile of the weaponry is generally divided into a combat mission profile and a training mission profile.
Based on the technical scheme, the fight task section refers to the fight task section which is analyzed and summarized by researching typical air defense anti-guided weapons and ground pressing weapons, and three typical types of rocket cannon fight are generally adopted as an example: firstly, the field battle is defended and fighted, secondly, the field battle is defended and fighted, and thirdly, the field battle is attacked and fighted;
different combat tasks have different characteristics, the firm battle field defends combat, the time is long, the bomb consumption is large, the field battle field combat intensity is large, the mobility requirement is high;
as shown in fig. 2, a combat mission profile typically includes the following routes:
preparation of a receiving task site, marching, conveying, marching, maneuvering and evacuating a battlefield;
the method comprises the steps of preparation of a receiving task site, marching, aggregation of an aggregation region, preparation of a standby array site, emission of an emission array site, maneuvering and evacuation of a battlefield;
the preparation of the leading task site comprises the steps of checking, correcting, maintaining and maintaining equipment, so that the technical state of the equipment is good, when the distance from the site to the staging area is long, a marching-conveying-marching mode is generally adopted, marching is divided into hiking marching, motorcyclizing marching and caterpillar marching, conveying comprises railway transportation, water transportation and air transportation, and the conveying mode depends on factors such as the distance between the site and the staging area, equipment characteristics and the like;
when the distance from the residence to the staging area is relatively short, taking motorcycle marching, wherein the distance is less than 500km, and in the staging area, checking and maintaining the weaponry to finish the preparation of the weaponry, wherein the time is generally several hours to several days;
standby array preparation: in general, the technical battle is also called as a technical battle field, necessary technical inspection is further carried out on the weapon equipment, ammunition is prepared to be filled, all battles are prepared, generally, at least one standby battle field exists in one battle, and the standby battle field is hidden and is not easy to detect;
immediately shooting preparation is carried out after the shooting battle field is entered, the gun is adjusted in place, the fire striking is carried out, the time from entering the shooting battle field to withdrawing the shooting battle field is not more than 6 minutes, a plurality of shooting battles are needed for one time, one shooting battle field is used for one time, and one ammunition firing is carried out;
maneuver generally refers to marching maneuver in a battle area, and for one battle, maneuver between a transmitting battle area, a standby battle area and a centralized area, wherein maneuver mileage is generally 200km depending on the strength of a battle task;
the environment in the task section is natural environment, the reliability of completing the firing task of the rocket gun is generally not lower than 0.9 according to the requirements of the operational task within the allowable range of the technical performance, the rocket gun cannot fire during running, namely, when the rocket gun is in a marching maneuver, the height and direction follow-up system cannot work, and the related system can also be in an inactive state, so that the operational maneuvering reliability requirement on the rocket gun is independently provided, the reliability of completing the marching maneuvering task in one battle is generally not lower than 0.9, and the basic reliability of the chassis of the rocket gun is basically determined due to the fact that the chassis of the rocket gun is usually a chassis which is shaped in a military series, and therefore, when the chassis is selected, the use requirements on the marching maneuvering reliability of the rocket gun are also considered besides the use requirements on the total weight and the load of the chassis.
Based on the technical scheme, the training task section refers to the training state that the weapon equipment is in the army most of the time, and the abrasion and loss generated to the equipment in each single item and comprehensive training are important factors affecting the service life and reliability of the equipment;
in general, the weapon equipment is not allowed to be operated and trained with faults at ordinary times, no matter what faults occur, the faults should be removed, and after the normal state is recovered, the weapon equipment can be trained, so that the reliability requirement of a training task is close to the basic reliability, and the requirement of the training task should be considered when the basic reliability index is determined;
as shown in FIG. 3, typical events within a training task profile generally include the following:
the method comprises the steps of cannonball storage, marching, operation training and firing practice;
the storage of the cannon comprises storage of the cannon, technical inspection, maintenance, detection and adjustment, and the storage conditions are natural environments: according to the annual training requirement of armies, annual marching mileage is 1000km;
the operation training is generally divided into single training and comprehensive training, and the training content generally comprises marching combat conversion, combat conversion, fire control system operation, high-low direction machine operation, sighting device operation, ammunition filling operation and sighting process training;
ball firing is typically performed once a year according to army annual training requirements.
Based on the above technical solution, in S3, the method for determining a test section of a typical army weapon device is based on a standard task section, and the method for establishing a test section is mainly based on research and establishment, and includes determination of a typical stress type, determination of an equivalent vibration load spectrum, determination of an equivalent temperature condition, and determination of an equivalent working condition, and provides a reliability test section of a typical army weapon device, and specifically includes the following steps:
firstly, selecting the type of the environmental stress applied in the test, comprehensively analyzing the environmental conditions expected to be experienced by the tested product, judging which environmental stresses are most sensitive to the reliability of the product, and searching for the stress with larger influence on the environmental stress to form the environmental stress conditions in the test process;
for most electronic and electromechanical products, the environmental stress applied in the test is mainly temperature, vibration and humidity, wherein the temperature specifically comprises high temperature and low temperature change rate, the environmental stress has the greatest influence on the reliability of the product, and other stresses such as low air pressure stress when the product is sensitive to low air pressure are applied to some special products;
secondly, the design of a vibration load spectrum is determined, the vibration stress is mainly related to the field use type of equipment, the installation position of a product and the expected use condition, the size of the vibration stress can be obtained through an actual measurement mode, a typical vibration load spectrum is drawn based on actual measurement data, if the actual measurement condition is not met, the estimated stress can be selected, namely, vibration data measured when similar tasks are executed by similar purpose products are selected, and if the estimated data is not met, reference vibration spectrum data provided by a standard is selected;
the temperature stress is determined according to the regional climate conditions and the use condition of the platform environment of the actual use of the product.
Based on the above technical solution, in S4, the stress applying method includes the following cases:
for most products, various stresses should be applied according to the stress type and magnitude of the determined test section in the same test time and space, and currently, for the reliability test of conventional temperature, humidity and vibration and electric stress, the stress application method has preliminary research application, and if other stress types need to be considered through analysis of weapon equipment, the comprehensive stress application method and equipment including low air pressure need to be researched;
for the test without the condition of applying the comprehensive stress, the application of the combined stress can be considered, and the application is performed according to the type, the size, the combination sequence and the cycle number of the stress, and the method has better applicability to the reliability test containing some special stress types, but needs to study the influence of the application of different sequences to obtain more accurate test results.
Based on the above technical solution, in S5, the case verification of the weapon equipment reliability test refers to verifying the feasibility of the reliability stress profile study and the stress application method, and a certain large-scale equipment is to be selected to perform the reliability test case verification, and the MTBF index is checked, wherein the MTBF index of the selected large-scale equipment is not less than 100 hours;
the reliability comprehensive stress profile is designed aiming at the selected large-scale equipment, the running test is carried out before the test to determine the running reliability, the reliability test is carried out after the running reliability is finished, the running reliability test can be used for replacing the vibration stress of the reliability test, and the stress application is carried out by adopting the whole car temperature and humidity test box.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for making a test section and applying stress is characterized in that: the method for making the test section and applying the stress is required to meet the test requirements of the anti-air-defense anti-pilot weapon and the ground pressing weapon, and is mainly used for making a reliability test section suitable for an identification test and determining the stress application according to the mission of equipment and the operational training process of army combat;
the method specifically comprises the following steps:
s1, researching and determining a weapon equipment reliability index system;
s2, analyzing a task section of the typical weapon equipment;
s3, determining a test section making method of typical weapon equipment;
s4, analyzing a stress application method of typical army weaponry;
s5, verifying the case of the weapon equipment reliability test.
2. The method for creating and applying stress to a test section according to claim 1, wherein: in the S1, research and determination of a weapon equipment reliability index system mainly refers to combining equipment mission tasks, typical mission profiles and structural components, adopting life profiles and mission profiles to determine the reliability index system, and establishing a general quality characteristic index system based on operational characteristics and composition characteristics of air defense anti-guided weapons and typical ground suppression weapon equipment, and finally establishing the reliability index system;
the weapon equipment selects an anti-air anti-guiding system, and the anti-air anti-guiding missile system has the characteristics of large size and complexity, mainly comprises missiles, a launch vehicle, a guarantee system and an electronic command system, and requires the missiles to be normally and reliably used after long-term storage according to mission, combat areas and combat modes, and a reliability index system of the anti-air anti-guiding missile system equipment is primarily analyzed.
3. A method of profiling and stress application according to claim 2, wherein: the reliability index system specifically comprises:
a. the launching reliability and the flight reliability describe the working reliability from the launching to the detonation of the missile;
b. service life, service life level, storage reliability, reliability of the missile during special storehouse and on-site storage, wherein the service life is described from delivery to retirement of the missile;
c. accumulating the power-on time and the frequency of the missile, describing the reliability level of power-on work during the deployment duty period of the missile, and describing the reliability level of the missile in a duty state maintained on a deployment site;
d. an average time between failures MTBF describing the basic reliability of the operation of the ground equipment;
e. the mean time between severe faults mtbf describes the task reliability of the ground equipment to complete the task profile specifying the event timing.
4. A method of profiling and stress application according to claim 2, wherein: in S1, the test modes for checking the performance of the equipment in the state identification stage are as follows: a-real-time test, B-simulation test, C-comprehensive evaluation, D-theoretical analysis and E-data acquisition;
the anti-air-defense anti-pilot missile system is important equipment, the sample size of the input live missile for launching and flying is limited, a test identification mode is developed by adopting a standard program according to the mode of carrying out performance identification test, combat test and in-service assessment test successively, the aim and the starting point are to verify and evaluate the minimum reliability quantitative index requirement and the qualitative requirement specified by the total development requirement, and the reliability test project, the conclusion form and the giving time of the anti-air-defense anti-pilot missile system are determined on the basis of fully considering the actual operation factors of supporting guarantee work, test time period, sample size and test consumption;
the project is used for researching reliability tests at different stages, and specifically comprises performance tests, combat tests and in-service assessment, and during project implementation, assessment index systems at different stages are respectively constructed, a research test method is determined, and on the basis of reliability research of an air defense anti-guided missile system, the reliability of other typical air defense anti-guided missiles and ground pressing weapons is researched.
5. The method for creating and applying stress to a test section according to claim 1, wherein: in the step S2, the task section is a time sequence description of events and environments experienced by the weapon equipment in the time of completing the specified task;
by summarizing and analyzing the mission profile of various typical army weaponry, a normalized mission profile template of the typical army weaponry is researched and given, the profile contains various element information of mission phase time, mission activity and environmental conditions, and the mission profile of the weaponry is generally divided into a combat mission profile and a training mission profile.
6. The method for creating and applying stress to a test section according to claim 5, wherein: the fight task section refers to a fight task section which is analyzed and summarized by researching a typical air defense anti-guided weapon and a ground pressing weapon, and three typical types of rocket gun fight are generally adopted as an example: firstly, the field battle is defended and fighted, secondly, the field battle is defended and fighted, and thirdly, the field battle is attacked and fighted;
different combat tasks have different characteristics, the firm battle field defends combat, the time is long, the bomb consumption is large, the field battle field combat intensity is large, the mobility requirement is high;
fight mission profile typical events include the following routes:
preparation of a receiving task site, marching, conveying, marching, maneuvering and evacuating a battlefield;
the method comprises the steps of preparation of a receiving task site, marching, aggregation of an aggregation region, preparation of a standby array site, emission of an emission array site, maneuvering and evacuation of a battlefield;
the preparation of the leading task site comprises the steps of checking, correcting, maintaining and maintaining equipment, so that the technical state of the equipment is good, when the distance from the site to the staging area is long, a marching-conveying-marching mode is generally adopted, marching is divided into hiking marching, motorcyclizing marching and caterpillar marching, conveying comprises railway transportation, water transportation and air transportation, and the conveying mode depends on factors such as the distance between the site and the staging area, equipment characteristics and the like;
when the distance from the residence to the staging area is relatively short, taking motorcycle marching, checking and maintaining the weaponry in the staging area, and finishing the combat preparation of the weaponry, wherein the time is generally from a few hours to a few days;
standby array preparation: in general, the technical battle is also called as a technical battle field, necessary technical inspection is further carried out on the weapon equipment, ammunition is prepared to be filled, all battles are prepared, generally, at least one standby battle field exists in one battle, and the standby battle field is hidden and is not easy to detect;
immediately shooting preparation is carried out after the shooting battle field is entered, the gun is adjusted in place, the fire striking is carried out, the time from entering the shooting battle field to withdrawing the shooting battle field is not more than 6 minutes, a plurality of shooting battles are needed for one time, one shooting battle field is used for one time, and one ammunition firing is carried out;
maneuver generally refers to marching maneuver in a battle area, and for one battle, maneuver between a transmitting array, a standby array and a centralized area is referred to, wherein maneuver mileage is generally 45 km-300 km depending on the strength of a battle task;
the environment in the task section is natural environment, the reliability of completing the firing task of the rocket gun is generally not lower than 0.9 according to the requirements of the operational task within the allowable range of the technical performance, the rocket gun cannot fire during running, namely, when the rocket gun is in a marching maneuver, the height and direction follow-up system cannot work, and the related system can also be in an inactive state, so that the operational maneuvering reliability requirement on the rocket gun is independently provided, the reliability of completing the marching maneuvering task in one battle is generally not lower than 0.9, and the basic reliability of the chassis of the rocket gun is basically determined due to the fact that the chassis of the rocket gun is usually a chassis which is shaped in a military series, and therefore, when the chassis is selected, the use requirements on the marching maneuvering reliability of the rocket gun are also considered besides the use requirements on the total weight and the load of the chassis.
7. The method for creating and applying stress to a test section according to claim 5, wherein: the training task section refers to the training state that the weapon equipment is in the army most of the time, and the abrasion and loss generated to the equipment in each single item and comprehensive training are important factors affecting the service life and reliability of the equipment;
in general, the weapon equipment is not allowed to be operated and trained with faults at ordinary times, no matter what faults occur, the faults should be removed, and the weapon equipment can be trained after the weapon equipment is recovered to be normal, so that the reliability requirement of a training task is close to the basic reliability, the requirement of the training task should be considered when the basic reliability index is determined, and typical events in the section of the training task generally comprise the following flows:
the method comprises the steps of cannonball storage, marching, operation training and firing practice;
the storage of the cannon comprises storage of the cannon, technical inspection, maintenance, detection and adjustment, and the storage conditions are natural environments: according to the annual training requirement of armies, annual marching mileage is 1000km;
the operation training is generally divided into single training and comprehensive training, and the training content generally comprises marching combat conversion, combat conversion, fire control system operation, high-low direction machine operation, sighting device operation, ammunition filling operation and sighting process training;
ball firing is typically performed once a year according to army annual training requirements.
8. The method for creating and applying stress to a test section according to claim 1, wherein: in the step S3, the method for determining the test section of the typical army weapon equipment is based on the standard task section, and the method for researching and establishing the test section mainly comprises the steps of determining the typical stress type, determining the equivalent vibration load spectrum, determining the equivalent temperature condition and determining the equivalent working condition, and providing the reliability test section of the typical army weapon equipment, and is specifically as follows:
firstly, selecting the type of the environmental stress applied in the test, comprehensively analyzing the environmental conditions expected to be experienced by the tested product, judging which environmental stresses are most sensitive to the reliability of the product, and searching for the stress with larger influence on the environmental stress to form the environmental stress conditions in the test process;
for most electronic and electromechanical products, the environmental stress applied in the test is mainly temperature, vibration and humidity, wherein the temperature specifically comprises high temperature and low temperature change rate, the environmental stress has the greatest influence on the reliability of the product, and other stresses such as low air pressure stress when the product is sensitive to low air pressure are applied to some special products;
secondly, the design of a vibration load spectrum is determined, the vibration stress is mainly related to the field use type of equipment, the installation position of a product and the expected use condition, the size of the vibration stress can be obtained through an actual measurement mode, a typical vibration load spectrum is drawn based on actual measurement data, if the actual measurement condition is not met, the estimated stress can be selected, namely, vibration data measured when similar tasks are executed by similar purpose products are selected, and if the estimated data is not met, reference vibration spectrum data provided by a standard is selected;
the temperature stress is determined according to the regional climate conditions and the use condition of the platform environment of the actual use of the product.
9. The method for creating and applying stress to a test section according to claim 1, wherein: in S4, the stress applying method includes the following cases:
for most products, various stresses should be applied according to the stress type and magnitude of the determined test section in the same test time and space, and currently, for the reliability test of conventional temperature, humidity and vibration and electric stress, the stress application method has preliminary research application, and if other stress types need to be considered through analysis of weapon equipment, the comprehensive stress application method and equipment including low air pressure need to be researched;
for the test without the condition of applying the comprehensive stress, the application of the combined stress can be considered, and the application is performed according to the type, the size, the combination sequence and the cycle number of the stress, and the method has better applicability to the reliability test containing some special stress types, but needs to study the influence of the application of different sequences to obtain more accurate test results.
10. The method for creating and applying stress to a test section according to claim 1, wherein: in the step S5, the case verification of the weapon equipment reliability test means that the reliability stress section research and the feasibility of the stress applying method are verified, a certain large-scale equipment is selected to carry out the case verification of the reliability test, and the MTBF index is checked, wherein the MTBF index of the selected large-scale equipment is not less than 100 hours;
the reliability comprehensive stress profile is designed aiming at the selected large-scale equipment, the running test is carried out before the test to determine the running reliability, the reliability test is carried out after the running reliability is finished, the running reliability test can be used for replacing the vibration stress of the reliability test, and the stress application is carried out by adopting the whole car temperature and humidity test box.
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