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Rui Q.,Academy of Armored force Engineering | Wang H.,Academy of Armored force Engineering | Wang Q.,Academy of Armored force Engineering | Wan L.,China North Special Vehicle Research Institute | And 2 more authors.
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | Year: 2015

Experimental research on steering characteristics is an important technical method for the analyzing of steering performance and validating of steering theory of tracked vehicles. In view of the absence of accurate and efficient steering test means for tracked vehicles, experiment approach of overall steering performance parameters have been given an overall analysis based on the relationships among steering kinematics and dynamic parameters. Experiment method of actual steering radius of tracked vehicle is proposed according to the GPS-based steering track test instrument. With the combination of National Instruments measurement system, memory revolving speed and torque tester and GPS-based steering track test instrument, uninterrupted experiments of multiple steering radiuses for steering kinematic and dynamic parameters has been implemented, and the test efficiency and precision of the steering performance parameters have been improved significantly. The usage of test equipment and the process of test data have been depicted in detail, and the critical question of truncation and synchronization of experimental data measured from multi-set of test instrument have been resolved. Test results are analyzed and compared with calculation results of theoretical model. The research provides an important technical method for steering performance test and theoretical model validation for tracked vehicles. ©, 2015, Journal of Mechanical Engineering. All right reserved. Source


Rui Q.,Academy of Armored force Engineering | Wang H.-Y.,Academy of Armored force Engineering | Wang Q.-L.,Academy of Armored force Engineering | Guo J.,North China Institute of Science and Technology | And 2 more authors.
Binggong Xuebao/Acta Armamentarii | Year: 2015

For the study of steering performance of tracked vehicles under skidding, a steady-state steering model of tracked vehicle, which takes the skid and slippage of tracks and centrifugal force into consideration, is established to improve the simulating accuracy of the tracked vehicle steering model. Expressions of driving force and braking force of outside track and inside track, and steering resistance torque of tracked vehicles are derived using shear stress-shear displacement relationship model, respectively. According to force and torque equilibrium theory, the steering dynamic equations of tracked vehicle are established and solved by iterative algorithm. Taking a certain type of tracked vehicle with the integrated transmission device as the object, the accuracy of steering model of tracked vehicles is verified by comparing the experimental and calculated results. The rules of changing the kinematics and dynamic steering performance of tracked vehicles with turning radius and running velocity are deeply studied based on the steady-state steering model of tracked vehicle. The results show that the influence of the steering centrifugal force on steering performance increases significantly with the increase in running velocity and the decrease in turning radius. ©, 2015, China Ordnance Society. All right reserved. Source


Wang H.,Academy of Armored force Engineering | Wang Q.,Academy of Armored force Engineering | Rui Q.,Academy of Armored force Engineering | Gai J.,North China Institute of Science and Technology | And 3 more authors.
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | Year: 2014

In order to analyse the kinematical and dynamic character parameters of steering process of high-speed tracked vehicle, the calculation model of kinematical and dynamic character parameters of acting force, turning resistance moment, turning radius, turning angular speed between tracks and ground is built, considering the influence of steering centrifugal force, the slipping of track-contact-ground. The analysis results show that steering centrifugal force has the some influence to the steering performance, the acting forces for out and inner tracks decrease along with the turning radius gradually in slipping steer situation. Compared to the calculation results based on traditional steering theory, which the turning radius is about 1.5 times, and the turning angular speed is 67% in slipping steer situation. Tracked vehicle testing results show that steering model established in this paper considering slip steering is accurate, which agrees with the actual turning process well, those research works provide the theoretical supported on the design of the new steering mechanism and the steering process control. ©2014 Journal of Mechanical Engineering Source

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