Vibration Control of Rotating Plates and Translating Bands

* 9622432 Mote本研究项目调查了高速处理和运输卷材时产生的剪切力和内力的影响。在空气或其它流体中输送的纸幅的摆动不稳定性和颤振是纸幅系统中生产率的常见且通常是主要的限制。目前的研究提供了研究腹板稳定性和翘曲所需的挠度和膜应力状态。采用平移腹板的非线性模型和弯曲刚度的奇异摄动模型，推导了在不同的弯曲条件下，临界边界剪力、腹板刚度和运输速度之间的关系。奇异摄动技术被用来处理小，有限的弯曲刚度。运输速度的最大化是通过对靠近表面平移的腹板进行颤振和颤振分析来实现的，该表面旨在避免不稳定性。*

*** 9622432 Mote This research project investigates its effects of shear and internal forces resulting from handling and transport of web material at high speeds. The wrinkling instability and the flutter of webs transported in air or other fluids are the common, and often the principal, limitations to productivity in web systems. Current research provides the deflection and the state of membrane stress required for study of web stability and wrinkling. Nonlinear modeling of the translating web and a singular perturbation modeling of the flexural stiffness is used to deduce the relationship between the critical boundary shear, the web stiffness, and the transport speed under various wrinkling conditions. Singular perturbation techniques are used to treat the small, finite flexural stiffness. The maximization of transport speed is pursued through the flutter and wrinkling analyses of webs translating close to a surface that is designed to avoid instabilities.***