某钢板标示设备写字机构的运动学及动力学分析  

KINEMATIC AND DYNAMIC ANALYSIS OF MARKING MECHANISM OF ONE STEEL PLATE MARKING MACHINE

作　　者：傅旻[1] 林立峰[1] 

机构地区：[1]天津科技大学机械工程学院天津市轻工与食品工程机械装备集成设计与在线监控重点实验室,天津300222

出　　处：《机械强度》2017年第4期996-1000,共5页Journal of Mechanical Strength

摘　　要：写字机构作为钢板热处理前标示设备的主要部件之一,其动态特性决定着标示效果的好坏。首先,应用Pro/Engneer软件建立了写字机构的三维模型,以标示典型字符"N"的运动情况为例,对写字机构进行了运动学分析,得到标示字符时速度、加速度随时间变化的规律;在此基础上,基于Ansys Workbench根据实际工况条件构建了写字机构的有限元模型,对写字机构进行了瞬态动力学分析~[1],求解出最大应力和变形随时间变化的曲线,结果表明,写字机构在工作过程中强度和刚度较好地满足要求,为其结构设计及优化提供了理论基础。The marking mechanism,as an important part of one steel plate marking machine that before heat treatment,its dynamic characteristic could influence marking effect.First,estiblished 3D model of marking mechanism by Pro/E,using the condition of marking typical character ＂N ＂ as example,kinematics analysis have been done,obtain the law of speed and acceleration varies with time when marking character;on the basis of it,build the finite element model of marking mechanism according to actual condition and transient dynamics analysis has been completed based on Ansys Workbench,solved the curve of maximium stress and deformation varies with time,the result shows that the intensity and stiffness of marking mechanism could satisfy the requirement,and provide theory foundation for the structure design and optimization.

关 键 词：写字机构 动态特性 运动分析 瞬态动力学 

分 类 号：TH122[机械工程—机械设计及理论]