Title: Performance-oriented structural optimisation for CDC slender valve

Authors: Jinghao Wang; Pu Qin; Linguang Li; Pengtao Liu; Junjie Chen; Bing Xu; Jianjiang Zhao; Dingyao Lu; Jiang Guo

Addresses: State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China ' State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China ' State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China ' State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China ' Ningbo Institute of Dalian University of Technology, No. 26 Yucai Road, Jiangbei District, Ningbo City, Zhejiang Province, 315000, China ' Jiayin Electromechanical Technology Co., Ltd., No. 66 Xingyan Road, Yuyao City, Zhejiang Province, 315400, China ' Jiayin Electromechanical Technology Co., Ltd., No. 66 Xingyan Road, Yuyao City, Zhejiang Province, 315400, China ' Jiayin Electromechanical Technology Co., Ltd., No. 66 Xingyan Road, Yuyao City, Zhejiang Province, 315400, China ' State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China; Ningbo Institute of Dalian University of Technology, No. 26 Yucai Road, Jiangbei District, Ningbo City, Zhejiang Province, 315000, China

Abstract: The structural optimisation is a crucial step in researching the CDC proportional pilot valve; however, the influence of its structure on key performance remains unclear. This study established the mapping relation between the key performance parameters and structural characteristics of CDC solenoid valves according to the concept of high-performance manufacturing. The simulation model was established and the accuracy was verified. Modelling simulations and theoretical analyses was adopted to optimise the structural parameters based on performance. Results demonstrated that reducing the air gap between the armature and magnetic conductive sleeve increased electromagnetic force and reduced response time. The optimised electromagnetic and response characteristics are obtained when the magnetic isolating ring is placed 0.5 mm below the end face of the valve seat. After optimisation, the average electromagnetic force is increased by 7.72 N, the standard deviation is reduced by 0.36, and the response time is reduced by 4.8 ms.

Keywords: shock absorber; CDC solenoid valve; dynamic characteristic; static characteristic; simulation; structural optimisation.

DOI: 10.1504/IJHM.2025.148506

International Journal of Hydromechatronics, 2025 Vol.8 No.3, pp.292 - 316

Received: 15 May 2024
Accepted: 11 Jul 2024
Published online: 09 Sep 2025 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article