Method for constructing comprehensive working condition vibration spectrum of armored vehicle and method for constructing long-life test spectrum of armored vehicle

Abstract

The invention discloses a method for constructing a comprehensive working condition vibration spectrum of an armored vehicle and a method for constructing a long-life test spectrum of an armored vehicle, and relates to the field of data processing method. The method for constructing the comprehensive working condition vibration spectrum comprises the steps: obtaining a first relation and a second relation among a single working condition actual measurement spectrum, a first reserve coefficient and the comprehensive working condition actual measurement spectrum; obtaining the relation between the first reserve coefficient and the comprehensive working condition actual measurement spectrum according to the first relation and the second relation; training a first RBF neural network to obtain a current first reserve coefficient; obtaining a first relation and a second relation among the single working condition standard spectrum, the second reserve coefficient and the comprehensive working condition standard spectrum; obtaining the relation between the second reserve coefficient and the comprehensive working condition standard spectrum according to the first relation and the second relation; training a second RBF neural network to obtain a current second reserve coefficient; and obtaining a reserve coefficient according to the current first and second reserve coefficients, thereby obtaining an actual comprehensive working condition actual measurement spectrum and a standard spectrum. According to the invention, the accuracy is improved, and a real vibration environment can be simulated more effectively.

Description

technical field [0001] The invention relates to the technical field of armored vehicle vibration spectrum data processing methods, in particular to a method for constructing armored vehicle comprehensive operating condition vibration spectrum and long-life test spectrum. Background technique [0002] Armored vehicles are military vehicles that can be driven on various roads and are mainly used for transportation, reconnaissance and mobility attacks. Therefore, the vibration level not only affects the fatigue and work efficiency of combatants, but also affects the weapons installed on the vehicles. attack accuracy. If the vehicle vibrates too much, it will shorten the service life of the device, and even cause damage to the device. [0003] In order to analyze the vibration performance of armored vehicles, test methods are mainly used to test the structural strength and durability of armored vehicle frames. For this reason, long-life simulation tests are usually used for qu...

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Problems solved by technology

[0004] However, the random vibration environment measurement data induction method stipulated in the standard GJB / Z 126-99 "Vibration and Shock Environment Test Data Induction Method" can only summarize the random vibration data of a single working condition, and obtain the random vibration specification spectrum

However, armored vehicles will have different comprehensive working conditions such as different road surfaces and different vehicle speeds when they actually drive, so the above-mentioned method for single working conditions cannot be directly used for comprehensive working conditions, and thus cannot be directly used for long-life simulation tests.

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