摆轮受迫振动的做功分析WORK ANALYSIS AND EXPERIMENTAL DATA PROCESSING OF PENDULUM WHEEL FORCED VIBRATION
李奇骏,吴秀梅
摘要(Abstract):
本文对摆轮受迫振动的做功与能量变化进行了研究,推导出阻尼力矩、弹性力矩和驱动力矩在1/4周期内的做功以及其共振平衡条件。接着从能量的角度,研究了摆轮转动的动能平均值和势能平均值的大小与振动频率的关系。最后对阻尼力矩和驱动力矩的瞬时功率进行了分析,并从振幅衰减的角度阐释了摆轮振幅的变化趋势。本文为分析受迫振动过程中力矩做功以及能量转化情况,提供了可供参考的理论研究。
关键词(KeyWords): 受迫振动;功能关系;振幅衰减
基金项目(Foundation): 2020年中央高校教育教学改革专项基金(5207022103A)
作者(Author): 李奇骏,吴秀梅
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