履带车辆差速转向机构转向过程动态特性的试验方法

该文研究了履带车辆在不同转向半径下转向的两侧履带功率流动特性及液压无级差速转向机构的工作原理。在此基础上，确定了用试验台模拟履带车辆转向过程的试验方案，提出了用试验台驱动装置模拟发动机特性以及加载装置模拟转向过程动态负载的方法，完成液压无级差速转向机构转向过程的动态特性试验。结果表明：履带车辆转向过程中内侧履带由输出功率到输入功率以及外侧履带输出功率进一步增大的变化特点，能够在液压二次调节实验台上予以完成。此试验方法成功解决了履带车辆转向特性试验的台架实现问题。

Test method of steering dynamic characteristics of differential steering mechanism of tracked vehicle

The characteristics of power flow of bilateral track of tracked vehicle in different steering radii were researched, and the working principle of hydraulic continuous differential steering mechanism was analyzed. Based on that, the test scheme of steering process in test bench was given, and the method of simulating engine characteristics with driving instrument and simulating dynamic load with loading instrument were researched, and the tests of steering of hydraulic continuous differential steering mechanism were finished. The results showed that the characteristics that inside track changed working situation from output power to input power and outside track increased output power in steering process could be simulated in test bench with hydraulic secondary regulation. The test method succeeds in resolving the problem of test implementation in test bench for steering characteristics of steering mechanism of tracked vehicle.