DYNAMIC FINITE ELEMENT ANALYSIS OF ULTRA-HIGH PRESSURE CYLINDER BASED ON THERMAL STRESS

LIU Biao; HUANG YuanMing; LIU Huan; YU ZuYao

doi:10.16579/j.issn.1001.9669.2021.06.028

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DYNAMIC FINITE ELEMENT ANALYSIS OF ULTRA-HIGH PRESSURE CYLINDER BASED ON THERMAL STRESS

更新时间：2022-09-22

- DYNAMIC FINITE ELEMENT ANALYSIS OF ULTRA-HIGH PRESSURE CYLINDER BASED ON THERMAL STRESS
- Journal of Mechanical Strength Vol. 43, Issue 6, Pages: 1467-1471(2021)
- 作者机构：
  
  1. 华中科技大学船舶与海洋工程学院
  2. 中石化石油机械股份有限公司三机分公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.06.028
  CLC：
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LIU Biao, HUANG YuanMing, LIU Huan, et al. DYNAMIC FINITE ELEMENT ANALYSIS OF ULTRA-HIGH PRESSURE CYLINDER BASED ON THERMAL STRESS. [J]. 43(6):1467-1471(2021)
DOI：

LIU Biao, HUANG YuanMing, LIU Huan, et al. DYNAMIC FINITE ELEMENT ANALYSIS OF ULTRA-HIGH PRESSURE CYLINDER BASED ON THERMAL STRESS. [J]. 43(6):1467-1471(2021) DOI： 10.16579/j.issn.1001.9669.2021.06.028.

摘要

超高压压缩机工作过程中产生的动态载荷是影响压缩机强度与寿命的一个重要因素,其中热载荷与机械载荷的耦合又是非常严重。以有限元法为基础,建立了52 MPa超高压气缸在工作循环中的热载荷的动态模型,预测了动态响应与稳态响应之间的函数关系,并通过冷启动和热启动的仿真分析,给出了其作用规律。该模型还可用于气缸危险区域的排查和气缸结构的优化分析。

Abstract

Dynamic load produced in the working process of ultra-high pressure compressor is an important factor affecting the strength and life, and the coupling between thermal load and mechanical load is very serious. Based on the finite element method, this paper establishes the dynamic model of thermal load of ultra-high pressure cylinder up to 52 MPa in working cycle, predicts the functional relationship between dynamic response and steady-state response, and gives its action rule through the simulation analysis of cold start and hot start. The model can also be used to check the dangerous area of cylinder and optimize the structure of cylinder.

关键词

超高压气缸动态特性热应力有限元分析

Keywords

High pressure cylinderDynamic characteristicsThermal stressFinite element analysis

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