Effect of piston-slipper assembly mass difference on the cylinder block tilt in a high-speed electro-hydrostatic actuator pump of aircraft

Effect of piston-slipper assembly mass difference on the cylinder block tilt in a high-speed electro-hydrostatic actuator pump of aircraft
复制标题

飞机高速电液静力执行泵活塞-滑块总成质量差对缸体倾斜的影响

DOI:
10.1007/s12541-017-0117-1
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发表时间:
2017-07
影响因子:
1.9
通讯作者:
Li Ying
Li Ying
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhang Junhui;Chao Qun;Xu Bing;Pan Min;Chen Yuan;Wang Qiannan;Li Ying

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在轴向柱塞泵的制造过程中,由于制造精度的限制,不可避免地会产生柱塞-滑靴组件的质量差。当泵在低速下运行时,小的质量差可能不会引起问题,而在高速下则不能忽略。与高速相关的一个问题是由活塞滑靴组件的惯性效应引起的气缸体倾斜。近年来,飞机上的电动静液压作动器(EHA)泵的转速可达10,000 rpm以上。因此,在今后的EHA泵设计中,应考虑活塞滑靴组件的质量差。本文主要研究了高速EHA泵中活塞滑靴组件质量差对缸体倾斜的影响。建立了活塞滑靴组件质量差与缸体倾摆力矩之间的关系式。研究发现,对于高速EHA泵,应更严格地控制活塞-滑靴组件的质量差。
When manufacturing axial piston pumps, mass difference of piston-slipper assembly is inevitable because of manufacturing precision limits. Small mass difference may not cause problems when the pump operates at low speeds, while it cannot be ignored at high speeds. One problem related to high speed is the cylinder block tilt resulting from the inertial effect of piston-slipper assembly. Recently, the speed of electro-hydrostatic actuator (EHA) pump in aircraft can reach more than 10,000 rpm. Therefore, mass difference of pistonslipper assembly should be taken into account in future EHA pump design. The main purpose of this paper is to investigate the effect of the mass difference of piston-slipper assembly on the cylinder block tilt in a high-speed EHA pump. A detailed set of relevant equations is developed to establish the relationship between the mass difference of piston-slipper assembly and cylinder block tilting moment. It is found that a tighter control over the mass difference of piston-slipper assembly should be guaranteed when it comes to high-speed EHA pumps.
DOI: 10.1299/jsme1958.26.72
发表时间: 1982-05
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