The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
空间协同分析时，采用超元法（每个单元由多根杆组成）计算等效柱的侧移刚度矩阵，自由度成倍减少。
2
The mathematical model of a vehicle system with 17 degrees of freedom is set up. The lateral component of the coupler force is considered.
建立了具有17个自由度的车辆系统非线性数学模型，模型中考虑了车钩力横向分力的作用。
3
This article studies the six-degree-of-freedom trajectory simulation of small multiple stage solid launch vehicles with control systems using lateral jet thrusters and grid fins.