...Xiao-Ye Mao; Hu Ding; Li-Qun Chen A simple passive technique of vibration isolation for flexible structures by nonlinear boundaries is investigated, which to our best knowledge is the first study of its kind reported in the literature. The equations of the structure are derived with Hamilton’s...

... acoustic measurement acoustic variables measurement acoustic wave transmission acoustic wave velocity flexible structures structural acoustics vibration measurement flanking transmission vibration reduction index scale model NAH Until recently, building regulations in most countries...

... with and without autobalancers, co-rotating case I Autobalancer ball angular positions, co-rotating case I; ( a ) ABD rotor A, ( b ) ABD rotor B. 31 07 2010 06 03 2011 11 04 2011 28 12 2011 28 12 2011 asymptotic stability damping flexible structures mechanical...

...Sanjiv Kumar; Rakesh Sehgal; Rajiv Kumar By attaching initially stressed poly vinyl chloride (PVC) layers on the flexible structures, necessary passive damping can be provided. Using passive constrained layers on these PVC layers, the efficiency can be made even better than ordinary passive...

... 08 12 2010 08 12 2010 beams (structures) cantilevers energy harvesting flexible structures piezoelectric transducers rotation energy harvester flexible cantilever dynamics rotary motion instrumentation piezoelectric bimorph This research was supported in part...

.... The results obtained are compared with the results obtained using the nonrational ANCF cable element. 01 05 2009 15 12 2009 25 05 2010 25 05 2010 beams (structures) Coriolis force differential equations finite element analysis flexible structures nonlinear dynamical systems...

... exponentially without vibration. Control of flexible structures is one of the most challenging problems in control theory. The main reason is the infinite number and the oscillating nature of its modes. Various approaches for closed loop control have been suggested, e.g., direct velocity feedback ( 1...

... in the reduction in residual vibration as well as steady-state error. 17 03 2008 30 07 2009 08 01 2010 flexible structures friction linear programming vibrations Linear programming (LP) is a powerful numerical optimization technique that is able to handle hundreds of constraints...

... tracking PDE based systems exponential stabilization asymptotic stability beams (structures) flexible structures vibration control vibrations 24 02 2008 20 12 2008 16 09 2009 The control objective in this section is to design a control law that guarantees the stability...

... driveshafts whirl instability damping eigenvalues and eigenfunctions flexible structures mechanical stability nonlinear dynamical systems nonlinear equations rotors shafts vibration control 02 11 2007 06 10 2008 28 05 2009 This paper conducts a pioneering study...

...G. T. Zheng; Y. Q. Tu The problem of flexible structure vibration isolation on a flexible foundation is analytically investigated by simplifying the vibration isolation as single axis isolation, which can be realized by a proper design, and the problem of the whole spacecraft vibration is taken...

... . 30 01 2008 31 05 2008 08 01 2009 crack detection flexible structures frequency response rotors shafts location of a crack modal constants directional frequency response functions (dFRFs) Rotating machinery is widely used in the modern industry, its applications...

...Yong-an Huang; Zhou-ping Yin; You-lun Xiong This paper is presented to improve the modeling accuracy and the computational stability for a high-speed rotating flexible structure. The differential governing equations are derived based on the first-order approximation coupling (FOAC) model theory...

... is proposed to measure the controllability. To examine the present method, the self-identification experiments are performed using a flexible cantilevered beam with controllable additional mass attached to the beam. In the experiments, we simulate the self-identification of a flexible structure with variable...

... processing techniques, such as short-time Fourier transformation or wavelet analysis. 13 09 2006 19 03 2007 vibrations kinematics elastodynamics Coriolis force elastic constants eigenvalues and eigenfunctions flexible structures The second and third methods mentioned...

... longitudinal slip, purely lateral slip, or combined slip. A brief description of the Pacejka tire model is provided next. 17 05 2006 26 02 2007 mountings engines vibration isolation vibrations motorcycles shafts suspensions (mechanical components) flexible structures elastic...

... reduced using modal truncation (dashed), and of the system reduced by balanced truncation of the states corresponding to the two smallest HSVs γ 3 and γ 4 in Eq. 32 (dash-dotted) 04 02 2005 08 09 2006 flexible structures robust control vibration isolation...

... is feasible. Simulation analysis shows that to achieve the same control effect, the control system is easier to realize if the sensors and actuators are located in the optimal positions. 08 08 2004 03 11 2005 vibrations vibration control control system analysis flexible structures...

...Rajiv Kumar; S. P. Singh; H. N. Chandrawat A neural network based time optimal control of flexible structures is presented. The implementation is done on a flexible inverted L structure with surface-bonded piezoceramic sensors/actuators. The state-space presentation, from control input voltages...

... sliding mode control. 03 November 2000 31 August 2004 18 05 2005 vibrations vibration control flexible structures variable structure systems discrete time systems Milosavljevicˇ Cˇ. , 1985 , “ General conditions for the existence of a quasisliding mode...