A study on design methods for condenser radiator fan module mounting system
by Xiao-Ang Liu; Xin Zhu; Wenlong Shangguan; Tie Wang; Xiao-Li Wang; Yong Chen
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 26, No. 2, 2019

Abstract: Design requirements of automotive condenser radiator fan module (CRFM) mounting system are proposed. A six degrees of freedom (DOFs) CRFM model is established. The calculation method for determining the root mean square (RMS) value of mount reaction force in a CRFM mounting system under cooling fan excitation is developed. Design and calculation methods for displacement control of the CRFM under extreme load are discussed. Robustness analysis is presented through a design of experimental method. At the end of this paper, a calculation example is proposed to get the mount stiffness and tuning point based on the design requirements for mount reaction forces and displacement of the CRFM centre of gravity. Effects of mount stiffness at linear section on natural frequencies and energy distributions of the CRFM and on RMS value of mount reaction forces are validated by a generic example.

Online publication date: Mon, 11-Mar-2019

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