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首页> 外文会议>Russian Conference on Mathematical Modelling in Natural Sciences >Numerical Simulation in Applied Analysis of the Fatigue Strength of the Support Devices of the Forestry Manipulator
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Numerical Simulation in Applied Analysis of the Fatigue Strength of the Support Devices of the Forestry Manipulator

机译：林业机械手支架装置疲劳强度应用分析的数值模拟

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摘要

The subject of inquiry is a tractor unit consisting of a wheeled tractor and a hydraulic manipulator. The hydraulic manipulator is installed onto the back console of the tractor with the help of a bracket provided with a mounting plate. The question at issue is low fatigue strength of the mounting plate, which disintegrates approximately after four months of manipulator operation. The purpose of the study is Prevent fatigue disintegration of mounting plate to allow for a sufficiently long period of operation. From finite element analysis, it has been established that excessive stresses occur in the mounting plate during movement on bumpy forest drives. A new design of the manipulator's mounting pad is substantiated, including an additional device intended to limit vertical movements of the manipulator's beam. As a result, maximum stress at the mounting pad was reduced in half. Justifications are also given for additional possibility to increase fatigue strength of the manipulator mounting pad by means of minimizing loads onto welded joints.
机译：查询的主题是由轮式拖拉机和液压机械手组成的拖拉机单元。液压机械手借助于设置有安装板的支架安装在拖拉机的后控制台上。主题问题的问题是安装板的低疲劳强度，其大约在机械手动操作四个月后崩解。该研究的目的是防止安装板的疲劳崩解，以允许足够长的操作。从有限元分析中，已经确定了在颠簸的森林驱动器上的运动期间在安装板上发生过度的应力。制造机械手的安装垫的新设计，包括旨在限制操纵器束的垂直运动的附加装置。结果，安装垫处的最大应力减少了一半。还提供了额外的可能性来提高操纵器安装垫的疲劳强度，通过将负载最小化到焊接接头上增加。

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