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Fatigue Life Analysis of a New Semi-Trailer Frame Based on FEA Method

机译：基于FEA法的新型半拖车框架疲劳寿命分析

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摘要

In allusion to the frame of a certain semi-trailer, through adopting ANSYS software, its stress response, modal response and random vibration response were calculated with FEA method under various load cases. The finite element fatigue analysis was carried out in the form of load spectrum, as well as fatigue life and the stress strain variation laws of the vehicle frame under dynamic loads have been obtained, which provide the valuable reference for the vehicle frame structure improvement and optimization. The analysis method adopted in this paper have significance to shorten product design cycle, save cost of testing and producing, reduce the development cost and guarantee the security, stability and reliability of the product.
机译：通过采用ANSYS软件，通过采用ANSYS软件，在各种负载情况下使用FEA方法计算其应力响应，模态响应和随机振动响应的框架。有限元疲劳分析以负载谱的形式进行，并且获得了在动态载荷下的疲劳寿命和车辆框架的应力应变变化规律，为车辆框架结构改善和优化提供了有价值的参考。本文采用的分析方法具有缩短产品设计周期，节省测试成本和生产成本，降低了开发成本，并保证了产品的安全性，稳定性和可靠性。

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