摘要
针对近似为无限长的自由曲梁在平面内的振动，研究了其中纵弯耦合波运动及功率流，得到了由激励输入曲梁的功率流及由内力作用传播的功率流。结果表明，输入功率流时存在截止频率，在高频段，输入功率流迅速减小，这些结论为控制曲梁的结构噪声及振动提供了理论依据。
The coupled longitudinal-flexural wave motion and the power flow of a curved free beamassumed to be approximately of an infinite length due to vibration in the plane are studied.The power flow from an exciting force and that applied and transmitted from external forcesare obtained.It is shown that the cut-off frequency exists during the input of power flow andthe power flow decreases rapidly at a high frequency band.
出处
《华中理工大学学报》
CSCD
北大核心
1995年第3期89-93,共5页
Journal of Huazhong University of Science and Technology
