Attempt is made to solve some of the existing problems due to the application of themodal control method. A wave control method--the method of successive decrease is set up at first, which isaimed at one harmonic wave...Attempt is made to solve some of the existing problems due to the application of themodal control method. A wave control method--the method of successive decrease is set up at first, which isaimed at one harmonic wave. Then, a new design method in wave control is proposed based on the above method. The problem of control spillover is analyzed and the concept of harmonic wave filter is introduced.As an example, the problem of the control of structures with closely spaced natural frequencies is treated by both the method of modal control and the method of successive decrease. The numerical results show that the method of successive decrease is more effective than the method of modal control for this problem.展开更多
基金supported by the National Natural Science Foundation of China the state Education Commission of China.
文摘Attempt is made to solve some of the existing problems due to the application of themodal control method. A wave control method--the method of successive decrease is set up at first, which isaimed at one harmonic wave. Then, a new design method in wave control is proposed based on the above method. The problem of control spillover is analyzed and the concept of harmonic wave filter is introduced.As an example, the problem of the control of structures with closely spaced natural frequencies is treated by both the method of modal control and the method of successive decrease. The numerical results show that the method of successive decrease is more effective than the method of modal control for this problem.
