The finite element dynamic model for integrated structures containing distributed piezoelectric sensors and actuators ( S/As ) is formulated with a new piezoelectric plate bending element in this paper. The problem of...The finite element dynamic model for integrated structures containing distributed piezoelectric sensors and actuators ( S/As ) is formulated with a new piezoelectric plate bending element in this paper. The problem of active vibration control and suppression of integrated structures is investigated under constant gain negative velocity feedback control law. A general method for active vibration control and suppression of integrated structures is presented. Finally, numerical example is given to illustrate the validity of the method proposed in this paper.展开更多
A component synthesis vibration suppression (CSVS) method for flexible structures is put forward. It can eliminate any unwanted orders of flexible vibration modes while achieves desired rigid motion. This method has ...A component synthesis vibration suppression (CSVS) method for flexible structures is put forward. It can eliminate any unwanted orders of flexible vibration modes while achieves desired rigid motion. This method has robustness to uncertainty of frequency, which makes it practical in engineering. Several time optimal and time-fuel optimal control strategies are designed for a kind of single flexible link. Simulation results validate the feasibility of our method.展开更多
Subject Code:H10 With the support by the National Natural Science Foundation of China,a study by Dr.Lin Xin(林欣)’s groups from the Institute for Immunology,School of Medicine,Tsinghua University demonstrates that JN...Subject Code:H10 With the support by the National Natural Science Foundation of China,a study by Dr.Lin Xin(林欣)’s groups from the Institute for Immunology,School of Medicine,Tsinghua University demonstrates that JNK1negatively regulates CD23,a novel C-type lectin receptor(CLR)with antifungal properties。展开更多
文摘The finite element dynamic model for integrated structures containing distributed piezoelectric sensors and actuators ( S/As ) is formulated with a new piezoelectric plate bending element in this paper. The problem of active vibration control and suppression of integrated structures is investigated under constant gain negative velocity feedback control law. A general method for active vibration control and suppression of integrated structures is presented. Finally, numerical example is given to illustrate the validity of the method proposed in this paper.
基金This project is supported by National 211 Project.
文摘A component synthesis vibration suppression (CSVS) method for flexible structures is put forward. It can eliminate any unwanted orders of flexible vibration modes while achieves desired rigid motion. This method has robustness to uncertainty of frequency, which makes it practical in engineering. Several time optimal and time-fuel optimal control strategies are designed for a kind of single flexible link. Simulation results validate the feasibility of our method.
文摘Subject Code:H10 With the support by the National Natural Science Foundation of China,a study by Dr.Lin Xin(林欣)’s groups from the Institute for Immunology,School of Medicine,Tsinghua University demonstrates that JNK1negatively regulates CD23,a novel C-type lectin receptor(CLR)with antifungal properties。
