Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility

doi:10.15961/j.jsuese.2013.04.009

您当前的位置：

首页 >

文章列表页 >

Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility

更新时间：2023-11-14

- Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility
- Advanced Engineering Sciences Vol. 45, Issue 4, Pages: 90-96(2013)
- 作者机构：
  
  四川大学制造科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.15961/j.jsuese.2013.04.009
  CLC：
- Published：2013，
  
  Published Online：20 March 2013，
扫描看全文
孙明楠,殷国富,胡腾.基于模态柔度的机床结合部动态刚度正交优化方法[J].工程科学与技术,2013,45(4):90-96.

Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility. [J]. Advanced Engineering Sciences 45(4):90-96(2013)
孙明楠,殷国富,胡腾.基于模态柔度的机床结合部动态刚度正交优化方法[J].工程科学与技术,2013,45(4):90-96. DOI： 10.15961/j.jsuese.2013.04.009.

Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility. [J]. Advanced Engineering Sciences 45(4):90-96(2013) DOI： 10.15961/j.jsuese.2013.04.009.

摘要

中文摘要: 针对合理分配机床结合部动态刚度的需要，提出一种基于模态柔度理论的机床结合部动态刚度优化方法。该方法通过计算机床各阶模态柔度比判定对机床动态特性影响显著的薄弱模态，建立以几个薄弱模态的最小模态柔度为目标函数的多目标优化模型。为提高优化计算效率，引入了灰色系统理论中的灰关联分析法与正交试验设计。以1台精密卧式加工中心为例，将该方法应用于立柱-主轴系统分布的直线导轨、滚珠丝杠和螺栓结合部动态刚度的优化设计，识别出X向直线导轨结合部动态刚度对机床动态特性影响最为显著，并确定了1组结合部动态刚度的最优解。数值仿真和试验结果验证了该方法的有效性与工程实用性。

Abstract

Abstract:To satisfy the requirements of distributing the dynamic stiffness of machine tool joints

an optimization design method for dynamic stiffness of machine tool joints based on the theory of modal flexibility was proposed.Weak modes that had significant effects on dynamic characteristics of the machine tool were judged according to modal flexibility coefficients of those modes. The multi-objective optimization mathematical model was established

with the minimum modal flexibility of the weak modes being the objective functions.To increase the efficiency of optimum calculations，the orthogonal experiment design and the grey relational analysis(GRA) method were introduced.Taking a precision horizontal machining center as example

the method was applied to the dynamic stiffness optmization design of the linear guide

ball screw

and bolt joints of the column-spindle system.The linear guide joint in the X-axial direction was identified that it has the most significant influence on dynamic characteristics of the machine tool.The best solution of dynamic stiffness of joints was obtained.The effectiveness and engineering practicability of the proposed method were verified by the results of numerical simulation and experiments.

关键词

模态柔度结合部动态刚度正交试验灰关联分析多目标优化

Keywords

modal flexibilityjointsdynamic stiffnessorthogonal experimentgrey relational analysismulti-objective optimization

references

更多指标>

Views

下载量

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Multi-objective Optimization of the Dry Core Reactor Based on Multi-physical Field Simulation and VIKOR Decision

Multi-objective Optimization of Airfoil-shaped Hydraulic Structure Based on Hicks-Henne Shaped Function and MIGA

Multi-objective Optimization for Hydrological Models Using Surrogate Modeling

Multi-objective Optimization of Switched Ethernet Topology Based on Mapping Matrix

Related Author

No data

Related Institution

Hubei Provincial Eng. Technol. Research Center for Power Transmission Line, China Three Gorges Univ.

College of Electrical and New Energy, China Three Gorges Univ.

Research Inst. of Electric Power Sci., State Grid Hunan Electric Power Co., Ltd.

四川大学轻工与食品学院四川

成都中医药大学药学院四川

⁰