Reliability analysis and improvement of electric actuators under high-temperature and high-pressure conditions
电动执行机构在高温高压工况下的可靠性分析与改进

摘要

电动执行机构在高温高压环境中长期运行时，面临着材料性能退化、密封失效及控制系统异常等多重挑战，导致其可靠性显著下降。本文通过分析高温高压工况对电动执行机构关键部件的影响机制，结合实验与仿真数据，揭示其失效模式及主要原因。在此基础上，提出针对性的结构优化和材料改进方案，显著提升设备的耐高温和耐高压性能。研究结果为电动执行机构的设计改进和安全运行提供了理论依据和技术支持，具有重要的工程应用价值。

Abstract

When electric actuators operate for a long time in high-temperature and high-pressure environments, they face multiple challenges such as material performance degradation, seal failure, and abnormal control systems, which lead to a significant decline in their reliability. By analyzing the impact mechanism of high-temperature and high-pressure conditions on key components of electric actuators, and combining experimental and simulation data, this paper reveals their failure modes and main causes. On this basis, targeted structural optimization and material improvement schemes are proposed, which significantly enhance the high-temperature and high-pressure resistance of the equipment. The research results provide a theoretical basis and technical support for the design improvement and safe operation of electric actuators, and have important engineering application value.