液靜壓軸承之等流量閥的探討

Investigations of constant-flow valves for hydrostatic bearings

李興漢(Hsinghan Lee)

指導教授 ： 康淵

中原大學/工學院/機械工程研究所/博士(2012年)

https://doi.org/10.6840/cycu201200098

摘要

等流量閥已在工業應用或學術研究中被提出，其補償軸承油腔壓力應付負載變動時，儘管壓力在不斷的變化，理論上，流率可以保持不變。但是，設計參數必須滿足特定條件。本文運用分析的方法研究了等流量閥的靜態特性，三種類型屬於傳統設計的等流量閥被重新審查；此外，一個創新設計被提出探討。研究結果表明這些類型的閥成為等流量時，其設計參數之間適當的關係，至於第三種傳統設計是無法成為等流量閥的。本文進一步探討傳統兩型及創新一型的三種等流量閥，在受到工作壓力變動之影響時，其流量的變動情形。

關鍵字

靜壓軸承 ； 等流量閥（CFV） ； 軸承油腔 ； 流率

並列摘要

Constant-flow valves have been presented in industrial applications or academic studies, which compensate pressures of bearing recesses as load fluctuates. The flow rate of constant-flow valves can be constant in spite of the pressure changes in recesses. However, specific condition of design parameters must be satisfied. This paper utilizes analytical method to study the static characteristics of constant-flow valves, three types belong to traditional design of constant-flow valve are reviewed afresh. Moreover, an innovative design for constant flow is presented and studied. The review and study results reveal that appropriate relationships among design parameters for these type valves.

並列關鍵字

constant-flow valve（CFV） ； bearing recesses ； hydrostatic bearing ； steady flow rate

參考文獻

3. Malanoski, S. B. and Loeb, A. M., “ The Effect of the Method Compensation on Hydrostatic Bearing Stiffness, ” Transaction of the ASME, Journal of Basic Engineering, Vol. 83, No. 2, pp. 179-187, (1961).

5. O’Donoghue, J.P. and Rowe, W.B., “Hydrostatic journal bearings”, Tribology, Vol. 1, pp. 230-236, (1968).

6. Davis, P.B., “A general analysis of multi-recess hydrostatic journal bearings”, Proc. Instn Mech Engineers Part I, Vol. 184(43), pp. 827-838, (1969-1970).

7. Aston, R.L. and O’Donoghue, J.P., “The effect of the number of recesses on the performance of externally pressurized multi-recess journal bearings”, Tribology, Vol. 4, pp. 94-96, (1971).

8. C.Cusano, M.S., “Characteristics of externally pressurized journal bearings with membrane-type variable-flow restrictors as compensating elements”, Proc. Instn Mech Engineers, Vol. 188 (Part 1), pp. 527-536 ,(1974).