摘要
为了解决全液压模锻锤在锻造过程中出现的振动、冲击现象以及U型机身上多个部位易出现裂纹等问题,首先建立了C92K-125型模锻锤三维几何模型;添加了运动副和主运动,进行了运动学模拟、干涉碰撞检查和机构运动的合理性分析;参照几何模型并针对模锻锤的实际锻打工况,建立了全部由六面体网格组成的模锻锤包括工件的非线性多体有限元模型,并提交LS-DYNA求解,得到了打击过程中主要部件锤杆和机身上应变、应力的变化情况,为液压模锻锤的结构优化设计和打击过程中的能量、温度精确控制提供了依据。
In order to solve the problem of impact, vibration and cracks appearing on the U-type frame, a solid model of C92K-125 hydraulic forging hammer was built. The constraints and motion were added to the model, and a simulation of kinematics was done. The interference between each part was checked and practicability of the mechanism was proved. Based on the geometry model of forging hammer and its working situation, a nonlinear multi-body FEM of forging hammer composed of only hexahedron elements was built, submitted to LS-DYNA solver to obtain the distribu- tion of stress and strain on the parts of the hammer and provide a basis for structural optimal design of hydraulic forg- ing hammer, accuracy control of energy and temperature in forging process.
出处
《锻压技术》
CAS
CSCD
北大核心
2012年第6期166-170,共5页
Forging & Stamping Technology
基金
河南省安阳市2011年度重大科技攻关资助项目(301)
