机械科学与技术2023，Vol.42Issue(12)：2003-2010,8.DOI:10.13433/j.cnki.1003-8728.20220183
斜支承导向的TPU薄膜振动特性研究
Study on Vibration Characteristics of TPU Film Guided by Inclined Support
摘要
Abstract
In the production process of TPU film,there are inclined supporting guide rollers to guide and support the film;In addition,a heating and drying system is required for instant drying.These processes inevitably cause the transverse vibration of the TPU film,thereby affecting the film's preparation precision and quality.Based on D'Alembert principle,the dynamic model and heat conduction equation of TPU film with motion velocity are established.After decoupling,the vibration differential equation of TPU film with thermoelastic coupling coefficient is obtained;The motion differential equation of TPU film with oblique support was established;The complex characteristic motion equation is obtained by using differential quadrature method.The relationship between the motion complex frequency and dimensionless velocity,inclined support angle,thermoelastic coupling coefficient,aspect ratio and tension ratio is studied.The influence of each parameter on the vibration stability of motion TPU film is analyzed quantitatively,so as to improve the coating accuracy and preparation quality of automobile TPU film.关键词
TPU薄膜/热弹耦合系数/斜支承/微分求积法Key words
TPU film/thermoelastic coupling coefficient/oblique support/differential quadrature method分类
矿业与冶金引用本文复制引用
冯谣,武吉梅..斜支承导向的TPU薄膜振动特性研究[J].机械科学与技术,2023,42(12):2003-2010,8.基金项目
国家自然科学基金面上项目(52075435)、陕西省自然科学基金项目(2021JQ-480)、陕西省教育厅重点科学研究计划项目(20JY054)及浙江省教育厅一般科研项目(Y202353023) （52075435）
