Fluid-structure simulation of a valve system used in hydraulic dampers

• Autorzy: Czop, P. , Gąsiorek, D. , Gniłka, J. , Sławik, D. , Wszołek, G.
• Języki publikacji: EN

Abstrakty

EN

The aim of this paper is to develop a method for optimizing the design of a disc spring valve system by reducing the aeration and cavitation effect which negatively influences the performance of a shock absorber. A fluid structure interaction (FSI) model is used in order to modify the geometry of the valve interior and, in turn, to achieve better performance of a shock absorber. The paper analyzes the pressure distribution along theflow paths inside the valve cavity to reduce the risk of aeration and cavitation, while other important engineering aspects are omitted, e.g. durability of disc-spring valve systems as discussed in [1]. A key measure of valve improvement was chosen as deterioration of the damping force level generated by a shock absorber vs. the number of cycles during continuous cycling of the damper . The objectives of this work are as follows: (i) to present a process for reducing the complexity of the geometry of a disc spring valve system in order to perform a combined fluid-structure simulation, (ii) to show keysteps of the simulation process focusing on interactions between fluid and structure domain and to review relevant simulation results, (iii) to describe practical aspects of the simulation process, including basic parameters and boundary conditions related to the applied commercial software, (iv) to make an optimization case study to show the application scope for the simulation methodology proposed in the paper, and to confront the simulation results with experimental investigations.

Słowa kluczowe

PL

tłumik hydrauliczny; zawór dyskowy; optymalizacja; oddziaływanie płyn-struktura

EN

hydraulic damper; disc valve; optimization; fluid-structure interaction

• Czasopismo: Modelowanie Inżynierskie
• Rocznik: 2012
• Tom: T. 14, nr 45
• Strony: 197--205
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Czop, P.

• AGH University of Science and Technology, Department of Robotics and Mechanics,

autor

Gąsiorek, D.

• Silesian University of Technology, Department of Applied Mechanics,

autor

Gniłka, J.

• Silesian University of Technology, Department of Applied Mechanics,

autor

Sławik, D.

• Silesian University of Technology, Institute of Engineering Processes Automation and Integrated Manufacturing Systems

autor

Wszołek, G.

• Silesian University of Technology, Institute of Engineering Processes Automation and Integrated Manufacturing Systems ,

Bibliografia

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