重型卡车静态侧翻阈值测量用的倾斜表规程

[中文适用范围]： 该测试程序适用于滚动耦合单元，例如直式卡车、牵引半挂车、全挂车、B 型列车等。该测试旨在评估车辆或车辆滚动耦合单元侧翻所需的横向加速度水平在平稳转向的情况下。该测试不模拟瞬态、振动或动态侧翻情况。此外，随着倾斜角度的增加，测试的准确性会降低，尽管这对于测试重型卡车所使用的倾斜角度水平来说影响很小。对于以低于 0.5 g 的横向加速度水平（对应于小于约 27 度的倾斜台角度）进行侧翻的车辆，测试精度是可接受的。即便如此，侧翻阈值大于 05 g 的重型卡车的结果可用于比较其相对静态侧倾稳定性。本 SAE 推荐做法的目的是提供使用倾斜台测量重型卡车静态侧翻阈值的临时测试程序。 [外文原描述]： The test procedure applies to roll coupled units such as straight trucks, tractor semitrailers, full trailers, B-trains, etc. The test is aimed at evaluating the level of lateral acceleration required to rollover a vehicle or a roll-coupled unit of a vehicle in a steady turning situation. Transient, vibratory, or dynamic rollover situations are not simulated by this test. Furthermore, the accuracy of the test decreases as the tilt angle increases, although this is a small effect at the levels of tilt angle used in testing heavy trucks. The test accuracy is accepted for vehicles that will rollover at lateral acceleration levels below 0.5 g corresponding to a tilt table angle of less than approximately 27 degrees. Even so, the results for heavy trucks with rollover thresholds greater than 0.5 g could be used for comparing their relative static roll stability.Cross Reference: 800906,881869,UMTRI-87-31