Dynamics and Control of Smart Structures for Space Applications
Prof. Jinjun Shan
York University, Toronto, Canada
jjshan@yorku.ca
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Abstract
Smart materials are materials that are capable of changing their properties in a controlled fashion, typically based on a supplied input. These types of materials can be incorporated into structures to create smart, or intelligent, structures capable of sensing and reacting to changes in their operating environment. A sensor is used to monitor the system and its output is connected to a control unit which will generate a response to the sensor signal, which is then applied to the actuator to generate a desired system behaviour. There are many forms of smart materials including shape memory alloys, piezoelectrics, magnetorheological and electrorheological fluids, and magenetostrictives and electrostrictives. The possibility to change a materials property in a controlled fashion is fascinating and has found applications in a diverse number of fields including positioning, shape and vibration control, and fault detection and mitigation. Within the space sector, as more is demanded of systems in increasingly complex applications in harsh environments, smart materials present themselves as one of the most viable solutions to these engineering problems. In this talk, Prof. Shan will provide a summary of his research on dynamics modeling and control system design of smart materials and structures, as well as their applications in active vibration control of flexible systems, active flatness control of space membrane structures, high-precision motion control, and high-spatial space spectrometer.
Biography
Prof. Jinjun Shan is an internationally recognized expert in the areas of dynamics, control and navigation. He is a Full Professor of Space Engineering at the Department of Earth and Space Science and Engineering, York University. Prof. Shan received his Ph.D. degree from Harbin Institute of Technology, China, in 2002. His research progress is demonstrated through over 230 peer-reviewed journal and conference publications and 2 issued patents. Prof. Shan’s accomplishments in research and engineering education have seen him recognized with prestigious recognitions such as the Fellow of Canadian Academy of Engineering (CAE), the Fellow of Engineering Institute of Canada (EIC), the Fellow of American Astronautical Society (AAS), and a member of European Academy of Sciences and Arts (EASA). He serves the profession as the Associate Editor for several field-leading journals. He is the founding director of Spacecraft Dynamics Control and Navigation Laboratory (SDCNLab) at York University.
