我也做了个JEEP,遇到两个问题:
1 steering_wheel、steering_shaft、steering_gear之间分别有两个恒速度
副,我每次加这两个约束副时都要遇到警告:
WARNING: JOINT JEEP.JOINT_23 is not specified correctly.
The angle between the positive z-axis of the I marker and
the positive z-axis of the J marker is 13.181 degrees.
The angle between the positive z axes should be greater than
30 degrees.
我都重做了好多遍,还是发现不了问题出在哪里。我新建一个文件,作了
同样的杆和约束,仿真就没有一点问题。
zusu,谢谢你啊!!
我把恒速度副的方向改变了一下,还是不行。提示信息如下:
ERROR: JOINT JEEP.JOINT_23 is not specified correctly.
The angle between the x-axis of the I marker and the y-axis of
the J marker is 87.744 degrees.
The angle between the y-axis of the I marker and the x-axis of
the J marker is 89.253 degrees.
These angles should be of equal magnitude and opposite sign.
我又遇到难题了!帮帮我!
还是这个jeep模型,加了轮胎之后,总会出现一大堆的warning,而且仿真还failed!
“the longitudinal slip ratio”是轮胎特性文件(jeep_tire.tpf,李军书P131)中的哪个参数?
总是有:
WARNING: For TIRE JEEP.TIRE_1 the absolute value of the longitudinal slip ratio
has gone beyond its maximum allowable limit of 1.0.
Longitudinal slip ratio = 1.0021.
If the longitudinal slip ratio is positive, it will be set
to 1.0 (braking). If the longitudinal slip ratio is
negative, it will be set to -1.0 (traction).
热心人帮我看看,不胜感激!