Vibro-Acoustic Response of Satellite Structures Using Sea and Its Validity Testing Using Real Satellite Structures

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Project title

Code/計畫編號

NSC89-NSPO(A)-PC-FA20-01

Translated Name/計畫中文名

衛星結構音振反應之統計能量法分析與測試驗證

Project Coordinator/計畫主持人

Rong-Juin Shyu

Co-Investigator(s)/共同執行人

鄭志鈞

Department/Unit

Department of Systems Engineering and Naval Architecture

Website

https://www.grb.gov.tw/search/planDetail?id=498043

Year

2000

Start date/計畫起

01-01-2000

Expected Completion/計畫迄

01-12-2000

Bugetid/研究經費

865千元

ResearchField/研究領域

機械工程

統計能量法:衛星結構:內損失因子:藕合損失因子本計劃將使用統計能量法，來預測衛星結構的振動行為，先期將以中華一號衛星為研究目標並對其模型進行測試，以修正理論模式中的參數，待完整模式之建立後，將運用其來測試往後的衛星結構。因此研究步驟包含下列幾項： 1.相關參數之初步假設（如內部損失因子之值） 2.衛星之統計能量法初步理論模型之建立 3.衛星模型的振動測試 4.衛星相關元件內損失因子等參數之測定 5.統計能量法模型之修正 6.理論與實測資料之比對 7.研究成果延伸至中華二號衛星 8.結果之檢討、修正以及進一步實驗之必要性探討最後將得到一組完整預測衛星結構的SEA模式及相關的參數，並可用於往後類似衛星結構振動行為之預測。此研究成果亦將轉移給太空計劃人員，以建立其自主研究之能力。 Statistical Energy Analysis, Satellite Structures, Internal Loss Factor, Coupling Loss Factor) The purpose of this proposed project is to use the Statistical Energy Analysis(SEA）method to predict the vibration response of satellite structures. Initially, the Chung-Hwa No.1 satellite structures will be investigated. The dummy model of this satellite will be test to obtain the correct parameters’ value for use in the SEA model. After the complete SEA model has been built, it will be extended to investigate other satellite structures, Therefore, the investigation procedure using SEA will include the following： 1.The assumption of relevant parameters.（e.g. internal loss factor） 2.Preliminary SEA model for satellite structures. 3.Vibration test for satellite model. 4.Test for internal loss factor of satellite components. 5.The modification of SEA model 6.Comparison between prediction and experimental results. 7.SEA prediction extended to Chung-Hwa no. 2 satellite 8.Furth modifications or vibration test, if needed. The final result will be a complete SEA model with relevant parameters, which can be used for any future predictions with new satellite structures. Also through this project, the independent research capability using SEA can be established within NSPO.

Keyword(s)

統計能量法
衛星結構
內損失因子
藕合損失因子
Statistical Energy Analysis
Satellite Structures
Internal Loss Factor
Coupling Loss Factor

DSpace CRIS

Vibro-Acoustic Response of Satellite Structures Using Sea and Its Validity Testing Using Real Satellite Structures

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