施工升降机异常振动原因分析和减振方案设计

在简要介绍施工升降机结构和工作原理的基础上,分析了施工升降机振动原因,确定减振思路,并在此基础上设计了磨合方案、载荷均布方案、尼龙阻尼轮振源抑制方案和消隙齿轮机构振源抑制方案等3种4项减振方案,这些减振方案为解决相似类型施工升降机的减振问题提供了有益的参考和借鉴。

某工业厂房振动实测研究及减振加固方案设计

神华鄂尔多斯煤制油分公司厂房二层局部楼面长期处于动力振动状态,混凝土持续疲劳工作,致使该处楼板产生明显穿透性裂缝,不仅威胁到设备的正常使用,更关乎到整体厂房结构的安全及工作人员的人身安全,结构安全问题已不容忽视。因此,该厂房结构振动问题亟待解决。本文对该厂房结构及工艺设备进行了实际振动测试,根据实测结果进行了动力分析,并提出了相应的减振加固方案设计建议。

Research on cylindrical shell vibration reduction systems

Longitudinal and horizontal vibration must both be reduced in an effective vibration isolation system. We present a cylindrical shell vibration isolator as a dynamic system composed of four springs and dampers. Vibration is directly produced by the motion of machinery, and more is subsequently generated by harmonic frequencies within their structure. To test the effectiveness of our isolator, we first determined equations for the transmission of vibration from the machine to its cylindrical shell. Damping effects produced by the vibration parameters of our system are then analyzed.