Comprehensive Performance Optimization of High-pressure Threaded Cartridge Relief Valve Based on NSGA-II Algorithm

doi:10.3901/JME.2025.08.319

Abstract

Abstract: The high-pressure threaded cartridge relief valve is widely used in construction machinery. The structural parameters have a cross-impact on its opening and closing characteristics，pressure flow characteristics，stability，and dynamic response. Unreasonable design can easily cause pressure impact，vibration，and pressure suppression in the hydraulic system. Based on the principle configuration of high pressure threaded cartridge relief valve，the mathematical models of opening and closing，pressure flow characteristics，stability and dynamic response are established，and the coupling influence of key parameters on its comprehensive performance is analyzed. A comprehensive performance optimization model is established by taking the opening rate，voltage regulation deviation，stability and dynamic response performance improvement as the optimization objectives，coupling structural parameters as variables，and existing performance and geometric dimensions as constraints. The Pareto solution set is solved by NSGA-II algorithm，and the optimization results are simulated and verified by experiments. The results show that after optimization，the opening rate is increased by 1.18%，the pressure regulation deviation is decreased by 15.75%，the pressure overshoot before the valve is decreased by 7.48%，the dynamic response time is shortened by 5.24%，and the stability margin is obviously improved. It provides theoretical guidance for the comprehensive performance optimization of high pressure threaded cartridge relief valve.

Key words: threaded cartridge relief valve, comprehensive performance optimization, NSGA-II algorithm, cross coupling

CLC Number:

TP601

CHEN Junxiang, KONG Xiangdong, GUO Yujie, AI Chao. Comprehensive Performance Optimization of High-pressure Threaded Cartridge Relief Valve Based on NSGA-II Algorithm[J]. Journal of Mechanical Engineering, 2025, 61(8): 319-330.

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