| Summary: | 碩士 === 逢甲大學 === 機械工程學系 === 87 === In the design of every hydraulic system, great consideration is normally given to the tasks that the system will have to accomplish. It is important to know the relationship between system input and output parameters. Entire hydraulic system is composed by each hydraulic component through suitable connection. The response behavior of each hydraulic component will affect the entire hydraulic system operation directly or indirectly. The results of component response analysis can also be used as the references of the component designer. Therefore, analyzing and understanding of each hydraulic component dynamic response behavior is very important for both system and component designers.
This paper is to describe how to derive static and dynamic mathematical model of a relief valve by theoretical analysis method in detail and to proceed the dynamic response analysis and simulation by Semi-implicit Extrapolation Method. The objective of this research is for a better understanding of a relief valve response characteristic and the motion behavior.
From this study, significant parameters on the valve response are identified, which are the diameter of damping orifice on main stage, the diameter of damping orifice on pilot stage, the diameter of damping orifice between main stage and pilot stage, the damping coefficient of pilot stage, the spring constant of pilot stage, the spring preloaded force at pilot stage, the diameter of main spool, and the diameter of pilot spool.
The results of this research can supply valuable design reference data for both the hydraulic component and system designers.
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