...) of the dimpled beam and that of the designated weak mode(s). 24 05 2010 23 12 2010 31 08 2011 20 09 2011 beams (structures) finite element analysis optimisation vibrations A structure that radiates minimal acoustic energy is generally referred to as a weak radiator...

... with both the classical VBT and DMA (when available) is presented. 16 02 2010 08 11 2010 11 04 2011 11 04 2011 beams (structures) dynamic testing frequency response laminates optimisation sandwich structures steel structural acoustics vibrations viscoelasticity...

... 20 09 2007 08 12 2008 09 09 2009 beams (structures) crack detection inverse problems optimisation vibrations In recent years, increasing attention has been focused on structural health monitoring and on nondestructive damage detection in many engineering fields, i.e...

... Energy Sinks ,” ASME J. Vibr. Acoust. 0739-3717 , 118 ( 5 ), pp. 3043 – 3049 . damping optimisation springs (mechanical) vibration control vibrations Tuned-mass dampers (TMDs) have become a very simple and effective vibration suppression device since it was first proposed by Frahm...

... delays differential equations finite difference methods milling optimisation Sensitivity plays an important role in the design of systems. For example, market economy demands an optimal design, which both favors the customer preferences and remains robust to variations in the system or its...

... 08 2008 braking cranes nonlinear dynamical systems optimisation vibration control Many mechanical systems accelerate at a different rate than they decelerate. This effect can be due to separate actuation mechanisms, noncolocated actuators, or unilaterally dispersive dynamics...

... ) . Robust stability of MIMO systems to which disturbance observers are added in the presence of model uncertainties is an important issue to be addressed elsewhere. 21 02 2007 17 12 2007 21 04 2008 control system synthesis MIMO systems observers optimisation disturbance...

... optimisation probability structural acoustics vibrations 07 07 2006 31 07 2007 30 01 2008 2008 American Society of Mechanical Engineers ...

.... 16 03 2006 17 11 2006 vibrations combinatorial mathematics optimisation For motivation, say that a room has a fan whose noise has spatiotemporal structure that interests us. In order to characterize the noise, say we place tiny microphones at 100 locations in the room...

... vibrations damping open loop systems closed loop systems sensitivity force feedback modal analysis reduced order systems engines perturbation techniques eigenvalues and eigenfunctions transfer functions optimisation The degree to which modal flexibility couples into the feedback loop...

... controllability observability optimisation piezoelectric actuators sensors flexible linkage mechanism vibration control sensor actuator placement optimization The equations of motion in the state space can be expressed as 3 A ¯ x ¯ ̇ + B ¯ x ¯ = D ¯ 1 P...

... leads to the worst performance. ultrasonic motors Taguchi methods design of experiments finite element analysis machine theory optimisation Ultrasonic Motor Finite Element Modeling Taguchi Method Various active electromechanical materials, such as piezoelectric materials, shape...

... . Link , M. , 1998 , “ Updating Analytical Models by using Local and Global Parameters and Relaxed Optimisation Requirements ,” Mech. Syst. Signal Process. 0888-3270 , 12 , pp. 7 – 22 . Baruch , M. , and Bar Itzhack , Y. , 1978 , “ Optimal Weighted Orthogonalization of Measured...

... controls that render the exact stationary PDF of the response to assist the evaluation of the response moments in the design of covariance controls. covariance analysis nonlinear dynamical systems stochastic systems Monte Carlo methods optimisation maximum entropy methods nonlinear control...

... Nov. 2002. Associate Editor: R. L. Clark. 01 April 2000 01 Nov 2002 18 06 2003 optimisation vibration control damping The dynamic vibration absorber (DVA), first invented by Frahm 1 in 1909, is a passive vibration control device. As shown in Fig. 1...

... in the field of mechanical vibrations. Many optimization criteria of this type of DVA were proposed until now. Table 1 shows three typical optimization criteria 1 . optimisation vibration control 01 January 2002 01 May 2002 20 09 2002 Contributed by the Technical Committee...

... OF VIBRATION AND ACOUSTICS . Manuscript received August 2000; Revised April 2002. Associate Editor: R. L. Clark. 01 August 2000 01 April 2002 20 09 2002 damping vibrations acoustic wave absorption optimisation vibration isolation acoustic field tuning acoustic resonance...

... November 2000 12 06 2002 structural acoustics finite element analysis boundary-elements methods laminates optimisation This paper presents the results of the structural acoustic optimization of an unstiffened multi-ply graphite epoxy cylindrical shell. The objective...

... state feedback acoustic resonance optimisation iterative methods least squares approximations Fourier transforms acoustic signal processing During the previous decade there has been a substantial and consistent focus on the problem of active noise cancellation (ANC) in acoustic enclosures...

... accurate. This approach, in addition, provided such valuable information as which supports dominated specific critical speeds. The developed approach proved to be very helpful to rotor engineers in both rotor modification and rotor design. vibration isolation optimisation rotors matrix algebra...