... , C. , 2009 , “ Effects of a Cracked Blade on Mistuned Turbine Engine Rotor Vibration ,” ASME J. Vibr. Acoust. , 131 . 10.1115/1.4000458 4 Dong , H. B. , Chen , X. F. , Li , B. , Qi , K. Y. , and He , Z. J. , 2009 , “ Rotor Crack Detection Based on High-Precision...

... , P. , and Vestroni , F. , 2007 , “ Nonlinear Dynamics of a Cracked Cantilever Beam Under Harmonic Excitation ,” Int. J. Non-Linear Mech. 0020-7462 , 42 , pp. 566 – 575 . 10.1016/j.ijnonlinmec.2006.08.007 Saavedra , P. N. , and Cuitino , L. A. , 2001 , “ Crack Detection...

... 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...

... of a Crack on the Stability of a Non-Linear Rotor System ,” Int. J. Non-Linear Mech. 0020-7462 , 42 , pp. 959 – 972 . 18 07 2007 30 05 2008 08 06 2009 condition monitoring crack detection failure analysis machine testing rotors vibrations Due to the fact...

... serves as a database of crack detection. If a high-fidelity finite element model for a rotating machine is available, the modal constants can be computed for a range of different levels of asymmetry and for all the corresponding locations of asymmetry. Such a database for modal constants is a reference...

... of the displacement field are demonstrated. It is shown that the out-of-plane measurements give a clearer indication of damage sites than the in-plane measurements. aluminium crack detection numerical analysis plates (structures) structural acoustics surface acoustic waves One objective in structural...

...Shuncong Zhong; S. Olutunde Oyadiji This paper proposes a new approach based on auxiliary mass spatial probing by stationary wavelet transform (SWT) to provide a method for crack detection in beamlike structure. SWT can provide accurate estimation of the variances at each scale and facilitate...

...M. Karthikeyan; R. Tiwari; S. Talukdar The present work aims at the development of a method for the crack detection, localization and sizing in a beam based on the transverse force and response signals. The Timoshenko beam theory is applied for transverse vibrations of the beam model. The finite...

... , 128 ( 5 ), pp. 666 – 671 . 05 05 2006 12 04 2007 signal denoising crack detection mean square error methods Noise reduction (denoising) plays a very important role in fault detection. Most of the fault signals acquired from rotating machinery contain sparsely...

... . fatigue condition monitoring ball bearings rolling bearings wavelet transforms vibrations crack detection demodulation wavelet mechanical shock response modal analysis vibratory analysis The first approach is based on global measures using the statistics, like the overall root mean...

... 19 02 2007 surface acoustic waves piezoelectric transducers condition monitoring Fourier transforms crack detection modal analysis ultrasonic imaging phased array radar structural health monitoring SHM Lamb waves piezoelectric wafer active sensor PWAS tuning sensors phased...

... damage identification sensitivity-enhancing control eigenstructure assignment eigenvalues and eigenfunctions feedback closed loop systems vibrations crack detection optimal control frequency measurement 2007 American Society of Mechanical Engineers ...

... specimens). Two of the parameters are linear in nature (splitting of modes and frequency shifts) and the third is nonlinear (frequency shift with increase in excitation amplitude). 28 07 2006 06 02 2007 bone nondestructive testing crack detection bioacoustics vibrations acoustic...

.... 08 05 2006 05 01 2007 structural acoustics surface acoustic waves aircraft piezoelectric transducers condition monitoring aerospace engineering acoustic applications crack detection corrosion Structural health monitoring (SHM) techniques are being developed to reduce...

..., which could be solved using the normal least squares method in principle. 29 12 2005 12 10 2006 vibrations crack detection damping bending finite element analysis cracked beam free vibration crack localization crack sizing Most of current damage-detection...

.... H. , Bankert , R. J. , and Scheibel , J. , 1989 , “ Development of an On-Line Rotor Crack Detection and Monitoring System ,” Trans. ASME, J. Vib. Acoust. 1048-9002 , 111 , pp. 241 – 250 . Bachschmid , N. , Pennacchi , P. , Tanzi , E. , and Vania , A. , 2000...

... 25 11 2003 03 02 2006 crack detection bridges (structures) vibrations structural acoustics reinforced concrete moving load bridge dynamics nonlinearity reinforced concrete shape function regularization surface roughness vehicle damage detection force identification...

... revision, January 20, 2004. Review conducted by S. Dyke. 14 May 2003 20 January 2004 21 03 2005 vibrations crack detection acoustic measurement ultrasonic materials testing Chebyshev approximation elastic constants series (mathematics) inverse problems singular value...

... to be independent. 11 08 2003 16 11 2004 29 11 2004 turbines fault diagnosis vibrational modes aerospace industry modelling variational techniques crack detection geometry Vehicle health monitoring systems are becoming a critical safety boosting component in a significant...

... frequency gives the largest decrease in nondimensional frequency. 16 08 2000 08 09 2004 vibrations structural acoustics elastic constants crack detection elastic waves Galerkin method A 6.225 m long hydroelastic ship (see Fig. 1 ), representing a 1 ∕ 20 th...