摘要
探讨了稳振系统机械能守恒问题和受迫振动的振幅稳定问题,指出稳定受迫振动在一般情况下机械能是不守恒的.稳定受迫振动之所以振幅保持不变,并非因为过程中机械能始终不变,而只是每半个周期中能量损耗与补偿相平衡的结果.但特定过程中能量的损耗与补偿的平衡并不是机械能守恒.
The problems of the mechanical energy conservation of stable compelled vibration are analyzed. Generally not conservative is the mechanical energy of the stable compelled vibration is not conservative. The swing of the stable compelled vibration is unchanged, which is the result of the fact that in half period the input and output of energy keep balance, rather than the unchanged mechanical energy in the course of vibration. But in the given process, the balance of the output and input of energy is not mechanical conservation.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2005年第4期94-96,共3页
Journal of Zhengzhou University of Light Industry:Natural Science
关键词
稳定受迫振动
机械能守恒
共振振幅
stable compelled vibration
mechanical energy conservation
resonance amplitude
