A sensor arrangement optimization method for tracked vehicle vibration test
A technology of vibration testing and optimization methods, applied in multi-objective optimization, design optimization/simulation, instruments, etc., can solve problems such as sensor layout redundancy, achieve the effect of solving layout redundancy problems and reducing economic costs
Active Publication Date: 2022-04-12
HUNAN UNIV OF SCI & TECH
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Therefore, the present invention proposes a sensor arrangement optimization method for tracked vehicle vibration test, which effectively solves the problem of sensor layout redundancy in tracked vehicle vibration test, and provides technical support for tracked vehicle structure optimization and vehicle lightweight design in engineering practical applications.
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[0042] The present invention will be further described below in conjunction with the accompanying drawings.
[0043] figure 1 It is an implementation step of a method for optimizing the arrangement of vibration test sensors of a crawler vehicle according to an embodiment of the present invention. Such as figure 1 As shown, step S1 establishes a three-dimensional model of the tracked vehicle body and performs finite element calculation and modal analysis, and selects the primary measurement points according to the modal analysis results. In step S2, according to the modal analysis results of step S1, m measuring point positions are selected on the 3D model of the tracked vehicle body as the primary measuring points, i.e. the constraint conditions for sensor layout optimization, and the first 8 orders of the m measuring points are encoded and calculated. Modal displacement. Step S3 selects the minimum off-diagonal element value based on the modal confidence factor (MAC) matri...
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The invention discloses a method for optimizing the arrangement of vibration test sensors of a crawler vehicle. Firstly, a three-dimensional model of the body of the crawler vehicle is established, finite element calculation and modal analysis are performed, and preliminary selection of measuring points is performed according to the modal analysis results; Select m measuring point positions on the 3D model of the vehicle body as the constraint conditions for the initial selection of measuring points, that is, the sensor layout optimization, and calculate the modal displacement of m measuring points as data input; set the modal placement criterion as the optimization objective function, Aiming at the multi-dimensional optimization of tracked vehicle vibration test sensor layout, the PSO algorithm has premature convergence and is easy to fall into the problem of local optimum. The proposed PSO-IWLF algorithm sets the algorithm parameters and performs optimization calculations; finally, according to the optimization results, the sensors are arranged and the vibration test is carried out. Evaluate the optimization results. The invention solves the problem of redundant arrangement of sensors in the vibration test of the tracked vehicle, and provides support for the structural optimization of the tracked vehicle and the lightweight design of the vehicle in practical engineering applications.
Description
technical field [0001] The invention relates to the technical field of vehicle vibration testing, in particular to a sensor arrangement optimization method for a crawler vehicle vibration testing. Background technique [0002] Tracked vehicles play an important role in modern military, construction, agriculture and other fields because of their strong off-road performance and passability. [0003] Due to the large structure and high curb weight of tracked vehicles, this will definitely affect the maneuverability of tracked vehicles during operation, so it is necessary to carry out lightweight design of tracked vehicle body structure. Measuring the vibration response of tracked vehicles under various excitations through sensor testing can provide theoretical basis and engineering practice guidance for tracked vehicle structure optimization and lightweight design. [0004] At present, in the vibration test of large-scale structural parts, the arrangement of sensors has always...
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IPC IPC(8): G06F30/15G06F30/25G06F111/06G06F119/20
CPCG06F30/15G06F30/25G06F2111/06G06F2119/20Y02T90/00
Inventor 杨书仪廖力力凌启辉胥小强陈哲吾戴巨川何兴云
Owner HUNAN UNIV OF SCI & TECH