纤维增强复合薄板非线性振动测试平台开发及应用
发布时间：2019-02-11 15:43
【摘要】：自主设计并开发了一套新型纤维增强复合薄板非线性振动测试平台.首先,开发了基于LabVIEW控制的二维激光扫描测振系统,介绍了该系统的实现原理及测控优势.然后,自主设计复合薄板专用夹具、振动转化底座等功能部件,完成纤维增强复合薄板激振平台的设计与开发.最后,经过对各个功能部件进行安装、调试和组配后,利用该振动测试平台获得了复合薄板结构的3类非线性振动现象,包括谐波失真、软式刚度非线性和非线性跳跃现象.应用研究表明,开发的测试平台能够达到预期实验效果,且相对于已有测试平台,在测试精度、测试效率方面都有大幅提高,可以为纤维增强复合结构的非线性振动测试问题提供一种新思路和新方法.
[Abstract]:A new nonlinear vibration measurement platform for fiber reinforced composite thin plates was designed and developed. Firstly, a two-dimensional laser scanning vibration measurement system based on LabVIEW control is developed, and the realization principle and control advantages of the system are introduced. Then, the design and development of fiber-reinforced composite plate exciting platform are completed by designing the special fixture for composite thin plate, vibration transforming base and other functional parts. Finally, three kinds of nonlinear vibration phenomena of composite thin plate structure are obtained, including harmonic distortion, soft stiffness nonlinearity and nonlinear jump phenomenon. Application research shows that the developed test platform can achieve the expected experimental results, and compared with the existing test platform, the test accuracy and efficiency have been greatly improved. It can provide a new idea and method for nonlinear vibration measurement of fiber reinforced composite structures.
【作者单位】： 东北大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51505070,51375079) 国家重大科学仪器设备开发专项资助项目(2013YQ470765)
【分类号】：TB332
本文编号：2419871
[Abstract]:A new nonlinear vibration measurement platform for fiber reinforced composite thin plates was designed and developed. Firstly, a two-dimensional laser scanning vibration measurement system based on LabVIEW control is developed, and the realization principle and control advantages of the system are introduced. Then, the design and development of fiber-reinforced composite plate exciting platform are completed by designing the special fixture for composite thin plate, vibration transforming base and other functional parts. Finally, three kinds of nonlinear vibration phenomena of composite thin plate structure are obtained, including harmonic distortion, soft stiffness nonlinearity and nonlinear jump phenomenon. Application research shows that the developed test platform can achieve the expected experimental results, and compared with the existing test platform, the test accuracy and efficiency have been greatly improved. It can provide a new idea and method for nonlinear vibration measurement of fiber reinforced composite structures.
【作者单位】： 东北大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51505070,51375079) 国家重大科学仪器设备开发专项资助项目(2013YQ470765)
【分类号】：TB332
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