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  • 學位論文

液壓阻尼器最佳化設計

Shock Absorber Optimization Design

指導教授 : 黃秀英
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摘要


車輛行駛於顛頗不平路面時,路面的不平整是常見車輛振動源之一,為提升車輛行駛的舒適性,懸吊、阻尼器是常用的減振設計元件。本論文著重於液壓式阻尼器設計,使達到設計所要求。 研究中,運用電腦輔助設計軟體,將現有的阻尼器進行建模,再運用HyperWork/AcuSlove及RADIOSS電腦輔助分析軟體,應用流固耦合原理,進行設計分析與最佳化。 研究結果顯示,阻尼器閥片最佳化後,阻尼力由原本的96.5 N提高到105 N,調高了8.8 %。應用最佳化方式,可以對設計要求,有效地做變更,減少硬體製作、實驗時間及成本。分析、設計及硬體實驗得以相輔相成。

並列摘要


Rough road is one of major external excitation sources to vehicles. To diminish the excitation passing to vehicle body, body mounts, shock absorbers, suspensions, dampers, among others are often used. This study focuses on the study of tubular hydraulic damper. This research utilized Computer-Aided-Design tool to create a damper model based on an existing hardware. HyperWork/AcuSlove and RADIOSS were used for fluid-structure coupling analysis and optimization. From the study, the damping force was improved 8.8% from 96.5 N to 105 N. Utilizing Computer-Aided-Engineering and optimization method can lead the design to meet the functional requirements, make the design changes effectively, and also support and help the hardware tests during the vehicle design process.

並列關鍵字

Shock Absorber Disc design Optimization

參考文獻


國立成功大學機械工程學系,2005。
[1] F.P. Martins, N. Spogis, C.L.R. Siqueira, “Development and validation of a CFD model to investigate the oil flow in a shock absorber”,SAE,2005,paper No.2005-01-4030.
[2] Abdel-Fattah M. Mahrous, M.L. Wyszynski, H.M. Xu, A. Tsolakis, J. Qiao,” A CFD Investigation into the Effects of Intake Valves Events on Airflow Characteristics in a Motored 4-Valve Engine Cylinder with Negative Valve Overlapping”, SAE, 2007, paper No.2007-24-0032.
[3] R.S.C. Ataides, S. Vannucci, D. Cavali, M.P. Kessler, C.D.L. Rosa Siqueira,”Numerical simulation of flow inside a shock absorber” ,SAE,2007,paper No.2007-01-2709.
[4] G. Daggupati, V. Mangaraju, C. Chavan and R. Babu,”A New Test Method to Characterize the Behaviour of Hydraulic Damper”,SAE,2010, paper No.2010-32-0101.

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