Based on balancingequation of framework of rock and soil and the principle of virtual work, the stress balancingequation can be acquired.
根据岩土体骨架的平衡方程和虚功原理建立应力场平衡方程。
2
The dynamic equation of elastic linkage with compliance elements is derived for the first time and the validity of new balancing method is discussed.
首次推导出具有弹性元件的弹性连杆机构动力学方程，从理论上阐述了此平衡方法的有效性。
3
The natural frequencies, the equation of motion and the node of vibration are discussed for the vibration system of a cradle dynamic balancing machine.