TY - GEN
T1 - Two-substructure, time-domain transfer path analysis of transient dynamic response of mechanical systems with nonlinear coupling
AU - Jiang, Wenwei
AU - Lim, Teik C.
PY - 2010
Y1 - 2010
N2 - The traditional frequency domain transfer path analysis has become a popular method to detect and diagnose vehicle NVH (noise, vibration and harshness) problems. Unfortunately, due to its reliance on frequency transfer functions, the approach is strictly effective only for linear time-invariant system and steady-state response. This limitation prevents the method from being applied to transient and/or nonlinear behavior such as clunk, shudder, and tipin and tip-out. In this paper, a novel time domain transfer path analysis is proposed to deal with a class of non-linear transient response problems. It combines the versatility of the transfer path analysis for tracking transmission of vibratory energy between substructures and generality of the time domain analysis for treating transient response that is also nonlinear in nature. The formulation that is derived by combining the spectral-based substructure method and a discrete, piecewise convolution theory is applied to a lumped parameter system. Simulation results are found to compare well to the output from a direct numerical integration of the nonlinear equations of motion.
AB - The traditional frequency domain transfer path analysis has become a popular method to detect and diagnose vehicle NVH (noise, vibration and harshness) problems. Unfortunately, due to its reliance on frequency transfer functions, the approach is strictly effective only for linear time-invariant system and steady-state response. This limitation prevents the method from being applied to transient and/or nonlinear behavior such as clunk, shudder, and tipin and tip-out. In this paper, a novel time domain transfer path analysis is proposed to deal with a class of non-linear transient response problems. It combines the versatility of the transfer path analysis for tracking transmission of vibratory energy between substructures and generality of the time domain analysis for treating transient response that is also nonlinear in nature. The formulation that is derived by combining the spectral-based substructure method and a discrete, piecewise convolution theory is applied to a lumped parameter system. Simulation results are found to compare well to the output from a direct numerical integration of the nonlinear equations of motion.
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M3 - Conference contribution
SN - 9781617382949
T3 - 24th National Conference on Noise Control Engineering 2010, Noise-Con 10, Held Jointly with the 159th Meeting of the Acoustical Society of America
SP - 783
EP - 790
BT - 24th National Conference on Noise Control Engineering 2010, Noise-Con 10, Held Jointly with the 159th Meeting of the Acoustical Society of America
T2 - 24th National Conference on Noise Control Engineering 2010, Noise-Con 2010, Held Jointly with the 159th Meeting of the Acoustical Society of America
Y2 - 19 April 2010 through 21 April 2010
ER -