Modified transfer path analysis considering transmissibility functions for accurate estimation of vibration source

Abstract In this study, we developed a modified transfer path analysis (MTPA) method to more accurately estimate the operational force of the main vibration source in a complicated system subjected to multiple vibration sources, base excitation and several disturbances. In the proposed method, transmissibility functions are adopted to compensate the disturbances due to base excitation or to reject transferred forces from other vibration sources. The MTPA method was verified numerically using a simple beam model and was practically applied to estimate vibration forces of a compressor in an outdoor air conditioner unit. Present results show that the MTPA method is feasible for predicting the pure operation forces of the compressor in an outdoor air conditioner unit regardless of the vibration sources due to a rotating fan and base excitations. The proposed MTPA method has very important advantages that it can be used to more accurately estimates the operational force of the main vibration source, properly rejecting other vibration sources and disturbances.

[1]  Nuno M. M. Maia,et al.  Response prediction from a reduced set of known responses using the transmissibility , 2000 .

[2]  José Roberto de França Arruda,et al.  Comparison of estimation techniques for vibro-acoustic transfer path analysis , 2006 .

[3]  Céline Sandier,et al.  Operational Transfer Path Analysis : theoretical aspects and experimental validation , 2012 .

[4]  David Thompson,et al.  The quantification of structure-borne transmission paths by inverse methods. Part 1: Improved singular value rejection methods , 2003 .

[5]  Bart De Moor,et al.  Continuous-time frequency domain subspace system identification , 1996, Signal Process..

[6]  Y. E. Lage,et al.  Force identification using the concept of displacement transmissibility , 2013 .

[7]  D. Tcherniak,et al.  Application of Transmissibility Matrix Method to NVH Source Contribution Analysis , 2009 .

[8]  P. Verboven,et al.  Identification of modal parameters from inconsistent data , 2002 .

[9]  Wim Desmet,et al.  OPAX: A new transfer path analysis method based on parametric load models , 2011 .

[10]  J. M. N. Silva,et al.  ON THE GENERALISATION OF THE TRANSMISSIBILITY CONCEPT , 2000 .

[11]  Jin Kab Lee.  Identification of noise sources in scroll compressor for air-conditioner , 2000 .

[12]  P. Guillaume,et al.  Application of a Fast-Stabilizing Frequency Domain Parameter Estimation Method , 2001 .

[13]  Dmitri Tcherniak,et al.  Force transmissibility versus displacement transmissibility , 2014 .

[14]  Herman Van der Auweraer,et al.  Operational Analysis, Transfer Path Analysis, Modal Analysis: Tools to Understand Road Noise Problems in Cars , 1995 .

[15]  M. Lohrmann,et al.  Operational transfer path analysis: Comparison with conventional methods , 2008 .

[16]  Nuno M. M. Maia,et al.  Transmissibility matrix in harmonic and random processes , 2004 .

[17]  Peng Hao,et al.  Time-domain transfer path analysis of multiple moving noise sources , 2011 .

[18]  Lin He,et al.  The Transmissibility Function Application in Ship Mechanical Noise Estimation , 2013 .

[19]  D. de Klerk,et al.  Operational transfer path analysis: Theory, guidelines and tire noise application , 2010 .

[20]  D. Thompson,et al.  Comparison of methods for parameter selection in Tikhonov regularization with application to inverse force determination , 2007 .

[21]  Oriol Guasch,et al.  Experimental validation of the direct transmissibility approach to classical transfer path analysis on a mechanical setup , 2013 .

[22]  Patrick Guillaume,et al.  Transmissibility-based operational modal analysis: Enhanced stabilisation diagrams , 2012 .

[23]  Nuno M. M. Maia,et al.  Experimental evaluation of the transmissibility matrix , 1999 .

[24]  David Thompson,et al.  The Quantification of Structure-Borne Transmission Paths by Inverse Methods - Part 2: Use of Regularization Techniques , 2003 .

[25]  Juha Plunt,et al.  Finding and Fixing Vehicle NVH Problems with Transfer Path Analysis , 2005 .

[26]  Christof Devriendt,et al.  From operating deflection shapes towards mode shapes using transmissibility measurements , 2010 .

[27]  Patrick Guillaume,et al.  Operational Modal Analysis Based on Multivariable Transmissibility Functions: Revisited , 2013 .

[28]  A. P. V. Urgueira,et al.  On the use of the transmissibility concept for the evaluation of frequency response functions , 2011 .

[29]  J. M. N. Silva,et al.  THE TRANSMISSIBILITY CONCEPT IN MULTI-DEGREE-OF-FREEDOM SYSTEMS , 2001 .

[30]  David Thompson,et al.  Selection of response measurement locations to improve inverse force determination , 2006 .

[31]  D. J. Ewins,et al.  Transmissibility properties of MODF systems , 1998 .

[32]  Sang-Kwon Lee,et al.  Prediction of interior noise by excitation force of the powertrain based on hybrid transfer path analysis , 2008 .

[33]  Malcolm J. Crocker.  Noise Control of Compressors , 2008 .

[34]  Andreas Schuhmacher.  Techniques for Measuring the Vibro-Acoustic Transfer Function , 2010 .

[35]  Rik Pintelon.  Frequency-domain subspace system identification using non-parametric noise models , 2002, Autom..

[36]  E. Parloo,et al.  Modal parameter estimation and monitoring for on-line flight flutter analysis , 2004 .

[37]  David Thompson,et al.  The use of an equivalent forces method for the experimental quantification of structural sound transmission in ships , 1999 .