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자료유형
학술저널
저자정보
저널정보
대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.21 No.1
발행연도
2007.1
수록면
83 - 97 (15page)

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Since Wilson (1948) had firstly developed steady-state flow rate and moment loss model for hydraulic piston machines, several authors tried to make precise performance models. However, Huhtala (1997) discussed the strength and weakness of some existing models comparing with measurement data and concluded unfortunately that any model is not accurate enough for wide operating ranges. For a hydraulic axial piston motor of swash plate design with rotating cylinder, new performance formula is derived in this paper through theoretical study on leakages and friction losses of three facing gaps and other non-negligible losses. And efficiency surface of an example motor is estimated and extension of the formula for hydraulic pumps is discussed. A novel feature of the derived model is that all coefficients are given by the physical dimensions of a motor, hence allowing calculation and analysis of the performance of a motor in mind.

목차

1. Introduction
2. Working Principle of Axial Piston Motors and Assumptions for Model Derivation
3. Flow Rate and Hydro-Mechanical Losses of Three Facing Gaps
4. Average Flow Rates and Moments Behaviour of Three Moving Gaps
5. Other Losses of a Hydraulic Piston Motor
6. Performance Model of a Hydraulic Piston Motor
7. Discussions and Conclusions
Appendix
References

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