摘要
针对船舶结构特点,以压电(PZT)材料作为反馈传感器和控制作动器,粘贴在船舶板梁结构表面,形成智能结构反馈控制闭环系统,使结构振动得到有效控制。从PZT材料的本构方程出发,建立了压电智能结构的传感器、作动器以及振动控制有限元方程,并用ANSYS软件进行了数值仿真研究。数值算例验证了智能结构在结构尺寸和厚度比较大的船舶板梁结构振动控制的可行性,可以给船舶结构振动控制提供一种新的途径。
Technology of smart structure was researched to control the structure vibration according to the character of ship structure. The constitutive equations of PZT material were given. And the finite element dynamical equations of smart structure, including smart actuator and sensor, were deduced. A feedback controlling system of smart structure was imitated numerically in ANSYS. Two typical examples of vibration control by smart structure highlights the feasibility of using smart structure to control the vibration of big size structure on the ship, which shows a new approach to the vibration control of ship structure.
出处
《船海工程》
北大核心
2007年第2期28-31,共4页
Ship & Ocean Engineering
基金
国家自然科学基金资助项目(编号:50479014)
