碩士 / 國立中央大學 / 機械工程學系 / 85 / The method of active control of absorbers, equipped in a cabin,
for reducing the vibration of the cabin and its interior sound
field, is studied. In the text,a closed cylindrical shell is
simulated as the cabin and the distribution of the sound
pressure in the cabin from experiments as the excitation force.
The displacements will be solved on the basis of the Hamilton's
Principle and the assumptions of the shell and the piezoelectric
absorbers. Then the sound field will also be discussed.The
control algorithm based on feedback signal is used. Two control
methods are investigated here, one is named displacement
feedback control,which requires feedback signal from the motion
of the shell, the other is named voltage feedback control, which
requires the signal of voltage and current in the circuit. The
dynamics of the vibrating shell, either under control or without
control,will also be discussed.
| Identifer | oai:union.ndltd.org:TW/085NCU00489095 |
| Date | January 1997 |
| Creators | Tseng, Shi-Jin, 曾旭進 |
| Contributors | Huang Yii-Mei, 黃以玫 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 81 |
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