Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method
The violent vibration of truss structures may cause fatigue, faults, or even an accident. Aiming to analyze the vibration power flow and transfer path of two-dimensional truss structures in the mid and high-frequency domain, this paper proposed a fast dynamic calculation method—the impedance synthes...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/12/17/8863 |
| _version_ | 1827666988765282304 |
|---|---|
| author | Hong-Zhen Zhu Jiang-Hai Wu Yu-Dong Sun |
| author_facet | Hong-Zhen Zhu Jiang-Hai Wu Yu-Dong Sun |
| author_sort | Hong-Zhen Zhu |
| collection | DOAJ |
| description | The violent vibration of truss structures may cause fatigue, faults, or even an accident. Aiming to analyze the vibration power flow and transfer path of two-dimensional truss structures in the mid and high-frequency domain, this paper proposed a fast dynamic calculation method—the impedance synthesis method (ISM)—which is based on an analytical equation with litter elements. Firstly, the global coordination vibration impedance of a Timoshenko beam truss is derived; Secondly, a dynamic model of a two-dimensional truss structure is built up with a single truss beam by force balance and geometric continuity; then, real and imaginary parts of dynamic responses and force in simple and periodically truss structures are verified by compared with FEM results, respectively; finally, the transfer path analysis (TPA) method is applied to separate the contribution of different transfer paths of power flow in periodical truss structures. The results show that the TPA method can easily find the line spectrum frequency of power flow, which should be considered in vibration control. This method can also be expanded to three-dimensional, honeycomb, and other truss beam structures. |
| first_indexed | 2024-03-10T03:00:22Z |
| format | Article |
| id | doaj.art-f712473345ae40a3b99975e10f95b448 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:00:22Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f712473345ae40a3b99975e10f95b4482023-11-23T12:48:12ZengMDPI AGApplied Sciences2076-34172022-09-011217886310.3390/app12178863Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis MethodHong-Zhen Zhu0Jiang-Hai Wu1Yu-Dong Sun2Faculty of Science, Department of Physics, Wuxi University, Wuxi 214045, ChinaNational Key Laboratory on Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 214082, ChinaNational Key Laboratory on Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 214082, ChinaThe violent vibration of truss structures may cause fatigue, faults, or even an accident. Aiming to analyze the vibration power flow and transfer path of two-dimensional truss structures in the mid and high-frequency domain, this paper proposed a fast dynamic calculation method—the impedance synthesis method (ISM)—which is based on an analytical equation with litter elements. Firstly, the global coordination vibration impedance of a Timoshenko beam truss is derived; Secondly, a dynamic model of a two-dimensional truss structure is built up with a single truss beam by force balance and geometric continuity; then, real and imaginary parts of dynamic responses and force in simple and periodically truss structures are verified by compared with FEM results, respectively; finally, the transfer path analysis (TPA) method is applied to separate the contribution of different transfer paths of power flow in periodical truss structures. The results show that the TPA method can easily find the line spectrum frequency of power flow, which should be considered in vibration control. This method can also be expanded to three-dimensional, honeycomb, and other truss beam structures.https://www.mdpi.com/2076-3417/12/17/8863truss structurepower flowtransfer path analysisimpedance synthesis methodvibration transmission |
| spellingShingle | Hong-Zhen Zhu Jiang-Hai Wu Yu-Dong Sun Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method Applied Sciences truss structure power flow transfer path analysis impedance synthesis method vibration transmission |
| title | Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method |
| title_full | Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method |
| title_fullStr | Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method |
| title_full_unstemmed | Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method |
| title_short | Vibration Power Flow and Transfer Path Analysis of Two-Dimensional Truss Structure by Impedance Synthesis Method |
| title_sort | vibration power flow and transfer path analysis of two dimensional truss structure by impedance synthesis method |
| topic | truss structure power flow transfer path analysis impedance synthesis method vibration transmission |
| url | https://www.mdpi.com/2076-3417/12/17/8863 |
| work_keys_str_mv | AT hongzhenzhu vibrationpowerflowandtransferpathanalysisoftwodimensionaltrussstructurebyimpedancesynthesismethod AT jianghaiwu vibrationpowerflowandtransferpathanalysisoftwodimensionaltrussstructurebyimpedancesynthesismethod AT yudongsun vibrationpowerflowandtransferpathanalysisoftwodimensionaltrussstructurebyimpedancesynthesismethod |