... impulse duration system 脉冲时间系统 impulse equation 冲量方程 impulse excitation 脉冲激发，脉动激励 ...
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在结构动力分析中提出了建立冲量方程并求解的方法，给出了该方法的积分格式并讨论了其数值稳定性、精度等数值特性。
Both the impulse equations of structural dynamics and the solution were established, and the (numerical) stability and accuracy of the integral formulation were also discussed.
冲量，动量的改变；火箭方程；随机运动的压力作用点。
Impulse and momentum change; rocket equation; origin of pressure from random motion.
建立系统的打击运动方程。并求出广义约束反力的打击冲量。
The equations of percussion motion of the system are given and the impulse of the generalized constraint reaction is found out.
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