文档介绍：合肥工业大学
硕士学位论文
J23-16T可倾开式压力机左右支架结构的有限元法分析与结构优
化
姓名:张汝
申请学位级别:硕士
专业:材料加工工程
指导教师:薛克敏
2011-03
J23-16T 可倾开式压力机左右支架结构的
有限元法分析与结构优化
摘要
有限元法分析和结构优化等 CAE 技术的运用,对于增强企业竞争力,提高
产品质量,降低制造成本,缩短产品开发周期具有不可替代的重要意义。本文
以 J23-16T 开式压力机支架为研究对象,以有限元分析软件 ANSYS 作为分析
工具,对压力机支架进行有限元静态、模态分析,并根据分析结果对压力机支
架进行优化改进。
论文在详细研究国内外压力机械结构分析发展趋势以及存在的问题基础
上,对压力机支架受力特点进行分析,采用四面体实体单元建立压力机支架的
三维有限元模型,经过模拟分析、计算,对压力机支架应力、应变分布进行分
析,从而找出其薄弱环节,对压力机支架进行模态分析并计算出压力机支架前
六阶模态频率,逐个分析了各阶模态对压力机支架的影响。并根据压力机静态、
动态性能的分析结果对压力机支架进行改进。
对改进后的压力机支架进行静态分析,获得压力机支架应力分布和位移分
布规律。通过模态分析给出了压力机支架振动的固有频率及相应振型。结果表
明,在保证压力机支架强度的条件下,改进后压力机支架减少了使用材料,重
量减少了 %,降低了生产成本,取得了良好的经济效益。

关键词:支架;有限元;静态分析;模态分析
4
Finite Element Analysis And Structure Optimization
For The Support Frame Of The J23-16T Open-Front Press
Abstract
The application of finite element analysis and structural optimization is
significant in shortening the period of production development,increasing the
quality of production, reducing the cost of manufacture and improving the
petitive and dynamic characteristics of finite element
analysis for the support frame of open—back press are researched in this present
dissertation using finite element analysis software ANSYS,and some improvement
designs of press frame structure have been mended based on the results of
analysis.
The achievements and problems in structural analysis of the press frame are
introduced in detail, the structural characteristics and loading of the support
frame were —FEM model of the frame using tetrahedron solid element
was built up and stress and displacement distribution law of the
frame under static load are disclosured by static the position of
dangerous point are given. The modal analysis of the support frame was
fore six natural frequencies and corresponding vibration modes were
gained with the evaluation for each influences of every step mode on