Transfer path analysis and its application to diagnosis for low-frequency transient vibration in the automotive door slamming event

Abstract Transfer path analysis (TPA) method has been widely used in the frequency-domain applications. However, it is not suitable for transient vibration problems such as the abnormal vibration in the automotive door slamming event. In this paper, two time-domain TPA models are used for the abnormal transient vibration diagnosis in the automotive door slamming event whenever the door glass is located at its lowest location. To obtain the excitation forces, lab experiments have been carried out for the whole vehicle and door system. In the experiment, a door closing velocity device is built to maintain the closing speed (1.5 m/s) to obtain the operational responses of the indicator points on the 1st and 2nd transfer paths, as well as the target points. The frequency response functions (FRFs) for the 1st transfer path are then recorded using the experiment, including the excitation points to its indicator points and the excitation points to the target points. The FRFs for the 2nd transfer path are obtained using the finite element analysis (FEA), including the excitation points to its indicator points and the excitation points to the target points. With the two time-domain TPA models, the contribution of each transfer path can be obtained. The results show that the two time-domain TPA models can predict the transient vibration in the door slamming event. They also show that the main transfer paths of the abnormal vibration are from the upper door frame on the 1st transfer path and the regulator channel on the 2nd transfer path. These results provide insights for the improvement of the regulator channel and glass run channel designs in order to mitigate the abnormal transient vibration in the door slamming event.

[1]  Christof Devriendt,et al.  Operational transfer path analysis , 2010 .

[2]  Cetin Yilmaz,et al.  Transfer path analysis: Current practice, trade-offs and consideration of damping , 2017 .

[3]  Antoine Chaigne,et al.  Operational transfer path analysis of a piano , 2018 .

[4]  At Moorhouse,et al.  In-situ source path contribution analysis of structure borne road noise , 2013 .

[5]  E. E. Ungar,et al.  High-frequency vibration isolation , 1966 .

[6]  Kyu-Sik Kim,et al.  Local stiffness control for reducing vehicle interior noise by using FRF-based synthesis method , 2011 .

[7]  Saeed Siavoshani,et al.  Door Closing Sound Quality Methodology - Airborne and Structural Path Contributions , 2015 .

[8]  Karl Janssens,et al.  Transfer Path Analysis in the Critical Path of Vehicle Refinement: The Role of Fast, Hybrid and Operational Path Analysis , 2007 .

[9]  Carlo Alberto Niccolini Marmont Du Haut Champ,et al.  Experimental and numerical vibro-acoustic investigation on a trimmed car door to analyze slamming event , 2020 .

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

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

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

[13]  Hesheng Tang,et al.  Transfer path analysis and its application in low-frequency vibration reduction of steering wheel of a passenger vehicle , 2020 .

[14]  Oriol Guasch,et al.  Direct transfer functions and path blocking in a discrete mechanical system , 2009 .

[15]  Zhidong Zhang,et al.  Low Frequency Transient CAE Analysis for Vehicle Door Closure Sound Quality , 2005 .

[17]  Stephen J. Walsh,et al.  Comparison between transfer path analysis methods on an electric vehicle , 2017 .

[18]  Yeon Soo Kim,et al.  Transfer path analysis of rumbling noise in a passenger car based on in-situ blocked force measurement , 2019 .

[19]  Ping Zhu,et al.  A system response prediction approach based on global transmissibilities and its relation with transfer path analysis methods , 2017 .

[20]  Ping Zhu,et al.  An improved OPAX method based on moving multi-band model , 2019, Mechanical Systems and Signal Processing.

[21]  Ho Kim,et al.  Predicted minimum door-closing velocity based on a three-dimensional door-closing simulation , 2011 .

[22]  Yunkai Gao,et al.  Numerical and experimental-based framework for vibro-acoustic coupling investigation on a vehicle door in the slamming event , 2021 .

[23]  Zhang Tong Advance in studying on transfer path analysis methods in frequency domain , 2013 .

[24]  Tang Tao,et al.  A domain association hierarchical decomposition optimization method for cab vibration control of commercial vehicles , 2019 .

[25]  Quentin Leclere,et al.  On the use of artificial excitation in operational transfer path analysis , 2013 .

[26]  Oriol Guasch,et al.  The Global Transfer Direct Transfer method applied to a finite simply supported elastic beam , 2004 .

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

[28]  Gabriella Cerrato,et al.  Automotive Sound Quality - Powertrain, Road and Wind Noise , 2009 .

[29]  Haluk Erol,et al.  A Numerical Approach for Sound Quality of Vehicle Doors , 2020 .

[30]  Shuqian Cao,et al.  Vibration signal model of an aero-engine rotor-casing system with a transfer path effect and rubbing , 2019, Measurement.

[31]  Steven W. Smith,et al.  The Scientist and Engineer's Guide to Digital Signal Processing , 1997 .

[32]  Magnus Olsson,et al.  Validation of the blocked force method for various boundary conditions for automotive source characterization , 2016 .

[33]  Lingyun Yao,et al.  Study on Automotive Interior Structure-Borne Sound Based on TPA , 2013 .

[34]  Zengwei Wang,et al.  Response prediction techniques and case studies of a path blocking system based on Global Transmissibility Direct Transmissibility method , 2017 .

[35]  Oriol Guasch,et al.  Direct response and force transmissibilities in the characterization of coupled structures , 2017 .

[36]  Guang-hui Shen,et al.  Investigation of Objective Parameters of Vehicle Door Closing Transient Sound Quality Based on Complex Analytic Wavelet Method , 2018, Shock and Vibration.

[37]  J. C. Snowdon Vibration isolation: Use and characterization , 1979 .

[38]  Song Huang,et al.  Analysis and control of structure-borne noise for a trimmed body by using panel acoustic participation method , 2017 .

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