Results By finite element analysis, we found vibration stimulation changed the femur stress distribution and improved bone mineral density in some parts of femur.
结果通过有限元仿真分析，发现添加振动激励后骨骼的应力分布和骨密度发生了变化，股骨部分部位骨密度增加。
DC servo system is the drive unit of vibration stimulation system. As the core of servo system, undoubtedly controller plays an important role to the whole system performance.
双电机同步直流伺服系统是颤振激励系统的驱动单元，控制器作为伺服系统的核心，对整个系统性能的优劣起着非常重要的作用。
In this paper, the actual displacement of the structure foundation under blasting vibration stimulation is calculated at first, then, the response of structure by the displacement can be worked out.
文中的求解方法是先通过计算结构基础在爆破震动激励下的实际位移，再通过基础的实际位移来求解结构的响应。
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