The dynamics characteristic of the motorcycle crank module was described by these two parameters - the obliquity of the ellipseprincipalaxis and the unbalance rate.
摩托车曲轴组件动力学特性决定于惯性力椭圆主轴倾角和不平衡率两个参数。
2
The image of sphericity which does not located the principal optic axis is an ellipse based on pinhole model, and the image center offsets from the projection of the sphere center.