大型振动流化床干燥机动态特性及动强度分析

Study on dynamic characteristic and dynamic strength of large-scale vibration fluid - bed drier

应用振动理论，模态分析理论，机械强度理论及振动测试与分析技术对干燥机进行了计算模态分析，动态特性分析及动强度分析．并对干燥机的箱体进行了动态试验．通过计算和试验，找出了干燥机破坏的主要原因，并提出了结构修改的科学依据．

In this paper, the vibration theory, the modal analysis theory, the mechanics strength thery ory and the thechnique of vibration test & signal processing are applied to make analysis of the calculating modal and to analize the dynamic characteristic and dynamic strength. The vibration testing for the drier is also done. Through calculating and testing, the main reason that damaged the drier is found. In addition, the rebuilding plans of the structure are supposed as scientific bases.