| Author: | Yang, Cheng |
| Title: | Dynamic analysis of a plate incorporating DVAs and tunable DVA design |
| Degree: | M.Sc. |
| Year: | 2009 |
| Subject: | Hong Kong Polytechnic University -- Dissertations. Plates (Engineering) -- Vibration. Vibration. Damping (Mechanics) |
| Department: | Department of Mechanical Engineering |
| Pages: | iii, 88 leaves : ill. ; 30 cm. |
| Language: | English |
| Abstract: | Performance of dynamic vibration absorbers (DVA) on a vibration plate has been investigated in present study. Therefore, a dynamic coupling model considering the interaction between multiple plate modes and multiple DVAs is derived. By developing a multimodal theory for describing the dynamic interaction between a plate and a DVA array, a rigorous analytical solution can be obtained. Based on this solution, performance of DVAs on a plate is proved to be effective. When the DVA is located at the optimal location, a maximum suppression effect can be achieved. In parallel, a design of DVA is proposed to implement a frequency and damping ratio tunable function. The smart device is built based on the prototype of a beam-mass system. A pair of porous disks is introduced to provide an adjustment damping. Performance of the device is experimentally proved to have a large adjustment frequency and an acceptable damping variation. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b23218150.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 16.56 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/4794