Research on Forecasting Methods of Braking Energy/force Distribution for High Speed Tracked Vehicles

doi:10.3969/j.issn.1000-1093.2019.05.002

Abstract

Abstract: A series of models， including a dynamics model, a driving system model and a braking system model， were established to study a tracked vehicle, which are used to predict the energy/force distributions of the braking system in high speed tracked vehicle. An approach to define testing road using eight parameters such as line length, slope, radius, roil angle, pavement power spectral density, running resistance coefficient, maximum soil adhension coefficient, and maximum steering resistance coefficient, is proposed, and then the influences of these parameters on the speed of vehicle are investigated. A driving strategy to minimize the running time of vehicle is designed based on the optimal control theory, and a binary linear regression equation used to calculate the braking torque is derived statistically. The accuracy of the approach and the efficiency of the strategy are verified using the experimental and simulated results. A typical model is built based on the experimental data of 1 000 km distance field test, and is used to predict the energy/force distributions of braking system in the region of a whole distance of 6 000 km. Key

Key words: trackedvehicle, brakingsystem, brakingenergyandforcedistribution, optimalcontrol

CLC Number:

TJ810.3⁺21

ZHANG Shuyang， ZHANG Yunan， NING Keyan， YAN Nanming， FANG Qingfeng. Research on Forecasting Methods of Braking Energy/force Distribution for High Speed Tracked Vehicles[J]. Acta Armamentarii, 2019, 40(5): 904-914.

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第40卷第5期
2019 年5月兵工学报ACTA
ARMAMENTARIIVol.40No.5May2019

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