Optimal Design and Fatigue Life Analysis on Buffer in Spring Mechanism

ZHAO Weitao; DANG Dewang; DI Zelong; LIU Chao

doi:10.13296/j.1001-1609.hva.2017.08.010

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Optimal Design and Fatigue Life Analysis on Buffer in Spring Mechanism

更新时间：2025-04-26

- Optimal Design and Fatigue Life Analysis on Buffer in Spring Mechanism
- High VoltageApparatus Vol. 53, Issue 8, Pages: 55-60(2017)
- 作者机构：
  
  1. 西安西电开关电气有限公司
  2. 西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.08.010
  CLC： TM561
- Published：2017
- 稿件说明：
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[1]赵伟涛,党德旺,弟泽龙,刘超.弹簧机构用缓冲器优化设计与疲劳寿命分析[J].高压电器,2017,53(08):55-60.

ZHAO Weitao, DANG Dewang, DI Zelong, et al. Optimal Design and Fatigue Life Analysis on Buffer in Spring Mechanism[J]. High voltageapparatus, 2017, 53(8): 55-60.
[1]赵伟涛,党德旺,弟泽龙,刘超.弹簧机构用缓冲器优化设计与疲劳寿命分析[J].高压电器,2017,53(08):55-60. DOI： 10.13296/j.1001-1609.hva.2017.08.010.

ZHAO Weitao, DANG Dewang, DI Zelong, et al. Optimal Design and Fatigue Life Analysis on Buffer in Spring Mechanism[J]. High voltageapparatus, 2017, 53(8): 55-60. DOI： 10.13296/j.1001-1609.hva.2017.08.010.

摘要

为实现弹簧操动机构用液压缓冲器的小型化、轻量化和高可靠性

需要对缓冲器进行优化设计与疲劳寿命分析。文中以缓冲器缸体为研究对象

首先建立缓冲器有限元模型

利用Ansys Workbench对其结构强度进行仿真计算

并采用其特有的优化模块Design-Exploration对缸体的壁厚进行优化

得到最优的设计方案。其次为保证优化后缸体的疲劳可靠性

利用疲劳分析软件nCode Design Life对该缸体进行疲劳寿命分析

确定了缸体容易发生疲劳破坏和损伤的位置

得到了缸体的疲劳寿命云图

证明了优化后的缸体具有足够的抗疲劳能力。该研究提出了弹簧操动机构用缓冲器产品的优化与疲劳寿命分析方法

有效减小了缓冲器的总重量

提高了产品的设计质量。

Abstract

In order to achieve the miniaturization

lightweight and high reliability of hydraulic buffer in spring operating mechanism

it should implement optimal design and fatigue life analysis for buffer. In this paper

taking hydro cylinder as the research object

firstly

this study takes advantage of Ansys Workbench to simulate the structural strength of buffer though finite element model（FEM）

and optimizes the wall thickness of cylinder by using the professional optimizer Design-Exploration to obtain the optimized design scheme. Then

in order to ensure the fatigue reliability of the optimized cylinder

its fatigue life is analyzed by the nCode Design Life

which is a specialized software.The fatigue damage position is located and the fatigue life nephogram of this cylinder is obtained.Mean while

the optimized cylinder has enough resist fatigue ability which is proved by its fatigue nephogram.This study puts forward an optimized fatigue analysis method for hydraulic buffer in spring operating mechanism

and it can effectively reduce the mass of the buffer and improve the design quality of the product.

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