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On-line Access: 2023-02-24

Received: 2022-11-20

Revision Accepted: 2023-01-02

Crosschecked: 2023-02-24

Cited: 0

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Citations:  Bibtex RefMan EndNote GB/T7714


Jun-hui Zhang


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Journal of Zhejiang University SCIENCE A 2023 Vol.24 No.2 P.130-145


Deformation pre-compensated optimization design of cam ring for low pulsation hydraulic motors

Author(s):  Chao ZHANG, Hao TAN, Yu FANG, Xiaolong ZHANG, Yu YANG, Yiman DUAN, Min HAN, Shaojian CUI, Bing XU, Junhui ZHANG

Affiliation(s):  State Key Laboratory of Fluid Power and Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   benzjh@zju.edu.cn

Key Words:  Hydraulic motors, Cam ring, Deformation pre-compensation, Pulsation

Chao ZHANG, Hao TAN, Yu FANG, Xiaolong ZHANG, Yu YANG, Yiman DUAN, Min HAN, Shaojian CUI, Bing XU, Junhui ZHANG. Deformation pre-compensated optimization design of cam ring for low pulsation hydraulic motors[J]. Journal of Zhejiang University Science A, 2023, 24(2): 130-145.

@article{title="Deformation pre-compensated optimization design of cam ring for low pulsation hydraulic motors",
author="Chao ZHANG, Hao TAN, Yu FANG, Xiaolong ZHANG, Yu YANG, Yiman DUAN, Min HAN, Shaojian CUI, Bing XU, Junhui ZHANG",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Deformation pre-compensated optimization design of cam ring for low pulsation hydraulic motors
%A Hao TAN
%A Xiaolong ZHANG
%A Yiman DUAN
%A Min HAN
%A Shaojian CUI
%A Bing XU
%A Junhui ZHANG
%J Journal of Zhejiang University SCIENCE A
%V 24
%N 2
%P 130-145
%@ 1673-565X
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2200552

T1 - Deformation pre-compensated optimization design of cam ring for low pulsation hydraulic motors
A1 - Chao ZHANG
A1 - Hao TAN
A1 - Yu FANG
A1 - Xiaolong ZHANG
A1 - Yu YANG
A1 - Yiman DUAN
A1 - Min HAN
A1 - Shaojian CUI
A1 - Bing XU
A1 - Junhui ZHANG
J0 - Journal of Zhejiang University Science A
VL - 24
IS - 2
SP - 130
EP - 145
%@ 1673-565X
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2200552

Cam-lobe radial-piston hydraulic motors are widely used in large machinery due to their excellent capability to withstand high loading at low speed. However, the line contact between the roller and cam ring generates elastic deformation of the cam ring under high loading, leading to obvious speed and torque pulsations and even the detrimental crawl problem of hydraulic motors. To address this issue, we propose a deformation pre-compensated optimization design approach to compensate for the cam ring deformation in advance, thereby eliminating the influence of cam ring deformation on the hydraulic motor’s pulsation. In this approach, the design process is divided into two steps: first, the overall profile of the cam ring is optimized based on the calculated elastic deformation; second, the local profile of cam ring is further optimized until the hydraulic motor’s pulsations no longer reduce. Finally, a case study is carried out to verify the effectiveness of this approach. The result indicates the pulsation rate of a deformation pre-compensated cam ring is 40% lower than that of an uncompensated one. This study offers an easy and feasible way to design an optimized cam ring profile for low pulsation hydraulic motors.


结论:1.提出凸轮环变形预补偿优化设计方法,包括初始的整体补偿和二次局部补偿。2.在对马达进行详细运动学和受力分析的基础上,推导出凸轮环变形的计算过程,并用有限元仿真方法进行实例验证。3.脉动降低率随着工作压力的增加而增加,并且在45 MPa工作压力下可以实现40%的高脉动降低率。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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