• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2016, Vol. 52 ›› Issue (14): 174-181.doi: 10.3901/JME.2016.14.174

• 可再生能源与工程热物理 • 上一篇    下一篇

聚合物反应成型模具加热系统热源 强度反演与试验研究*

李金国123, 刘红2, 林康1, 蒋宁2, 高增梁2, 张树有3   

  1. 1. 台州职业技术学院模具研究所 台州 318000,
    2. 浙江工业大学机械工程学院 杭州 310014
    3. 浙江大学机械工程学院 杭州 310027
  • 出版日期:2016-07-20 发布日期:2016-07-20
  • 作者简介:

    作者简介:李金国,男,1979年出生,博士,副教授。主要研究方向为模具CAD/CAE技术、工程热物理方法。

    E-mail:lijinguo_2002@126.com

  • 基金资助:
    * 浙江省自然科学基金(LY15E060001)、国家自然科学基金(51206147)和台州职业技术学院重点课题(2015ZD10)资助项目; 20150924收到初稿,20160519收到修改稿;

Theory and Experimental Research on the Multiple Source Heat Conduction Inversion of the Polymer Curing Reaction Mould Heating System

LI Jinguo123, LIU Hong2, LIN Kang1, JIANG Ning2, GAO Zengliang2, ZHANG Shuyou3   

  1. 1. Institute of Mould Engineering, Taizhou Vocational & Technical College, Taizhou 318000,
    2. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014,
    3. College of Mechanical Engineering, Zhejiang University, Hangzhou 310027
  • Online:2016-07-20 Published:2016-07-20

摘要:

反应成型模具加热系统热源强度的求解是一个典型的热传导反问题,即在给定的温度场解的条件下,求解热管的加载工况。根据反应成型模具加热系统的传热特性,结合线性热传导叠加原理,推导出模具加热系统热传导多源项反演算法,针对反演问题的不适定性,通过选择平方范数来提高反演稳定性和精度。设计单型腔反应固化成型模具,开发温度控制系统,搭建温度场测试试验平台。试验结果证明基于线性热传导叠加原理的多源项反演算法,在解决工程问题上是有效的、可靠的。

关键词: 多源项反演, 模具加热系统, 热传导叠加原理, 反应成型模具

Abstract:

The solution of heat source intensity of the mould heating system is a typical inverse conduction problem, which is to solve the loading condition of the heat pipes under the given temperature field. According to the heat conduction characteristics of the curing reaction mould heating system, combining with the linear heat conduction superposition principle, the multiple sources inversion algorithm for the heat conduction of the mould heating system is proposed. For the ill-posedness of the inversion problem, the square norm is selected to improve the stability and the accuracy of the inverse process. An experimental system is built with a single cavity curing reaction mould and a temperature controlling system. The inversion results and the experimental results agree very well, which indicates that the inversion algorithm is effective and reliable to deal with the problem of engineering.

Key words: heat conduction superposition principle, mould heating system, multiple sources inversion algorithm, curing reaction mould