明确了虚位移原理的变分约束条件和变分自然条件。
The boundary condition of restriction and the natural condition of variation for the virtual principle of displacement are given too.
用张量形式通过变分原理导出了无约束物体的动力学普适方程。
An universal dynamic equation for unrestrained body has been derived in the form of tensor by using variation method.
用张量形式通过变分原理导出了无约束物体的动力学普适方程。
An universal dynamic equation for unrestrained body has been derived in the form of tensor by using variation method.
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