东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (4): 516-520.DOI: 10.12068/j.issn.1005-3026.2019.04.012

• 机械工程 • 上一篇    下一篇

FDM薄板振动特性的理论与实验研究

姜世杰, 史银芳, SIYAJEU Yannick, 闻邦椿   

  1. (东北大学 机械工程与自动化学院, 辽宁 沈阳110819)
  • 收稿日期:2018-02-12 修回日期:2018-02-12 出版日期:2019-04-15 发布日期:2019-04-26
  • 通讯作者: 姜世杰
  • 作者简介:姜世杰(1985-),男,辽宁营口人,东北大学讲师,博士; 闻邦椿(1930-),男,浙江温岭人,东北大学教授,博士生导师,中国科学院院士.
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(N150303003); 辽宁省博士科研启动基金资助项目(201601005).

Theoretical and Experimental Study on Vibration Characteristics of FDM Thin Plates

JIANG Shi-jie, SHI Yin-fang, SIYAJEU Yannick, WEN Bang-chun   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2018-02-12 Revised:2018-02-12 Online:2019-04-15 Published:2019-04-26
  • Contact: JIANG Shi-jie
  • About author:-
  • Supported by:
    -

摘要: 熔融沉积成型(FDM)是一种能够直接打印出具有复杂几何形状零件的快速成型技术.然而,FDM在振动性能方面很难与传统加工方式相媲美,需要对其进行更为实际的振动特性分析,为此首次提出FDM 3D打印薄板的振动特性理论建模方法.以悬臂边界条件下FDM薄板为研究对象,基于经典层合板理论,采用双向梁函数组合法表示振型函数,并通过Ritz法求解获得了复合薄板的固有特性;搭建了FDM 3D打印薄板的固有特性测试实验台,以获得薄板的模态振型和固有频率;计算与实验结果验证了理论计算方法的正确性和可靠性.

关键词: 熔融沉积成型, 振动特性, 3D打印薄板, 理论建模, 测试系统

Abstract: Fused deposition modeling(FDM) is a rapid prototyping technology that can directly print parts with complex geometrical shapes. However, it is hard to compare with the traditional processing methods in terms of vibration property, and a more practical analysis of vibration characteristics is needed. Therefore, a theoretical modeling method of vibration characteristics of the FDM 3D printed was proposed for the first time. The FDM sheet under the cantilever boundary conditions was taken as the research object. Based on the classical laminated plate theory, the vibration mode function was represented by the bidirectional beam function combination method, and the inherent characteristics of the composite thin plate were obtained by the Ritz method.The inherent characteristic test system of the FDM 3D printed plate was built, and the natural frequency and mode shape of the thin plate sample were obtained. The calculation and experimental results verify the correctness and reliability of the theoretical calculation method.

Key words: fused deposition modeling, vibration property, 3D printing plate, theoretical modeling, testing system

中图分类号: