A feasibility work on the applications of MRE to automotive components

International Conference on Advanced Materials for Better Future 2017

Kim, S.H.^1 ; Park, Y.J.^1 ; Cha, A.R.^1 ; Kim, G.W.^1 ; Bang, J.H.^2 ; Lim, C.S.^2 ; Choi, S.B.^3

Department of Mechanical Engineering, 100 Inha-ro, Nam-gu Incheon, Korea, Republic of^1

NVH Competence Team, RandD Dev. Div. Hyundai Motor Group, 150, Hyundaiyeonguso-ro, Namyang-eup, Hwaseong-si, Gyonggi-do, Korea, Republic of^2

Department of Mechanical Engineering, 100 Inha-ro, Nam-gu, Incheon, Korea, Republic of^3

关键词: Frequency response functions;    High resonance frequency;    Low resonance frequency;    Magneto-rheological elastomers;    Noise , vibration and harshness;    Performance trade-off;    Resonance frequency shift;    Technical limitations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012013/pdf
DOI  :  10.1088/1757-899X/333/1/012013

来源: IOP

【 摘 要 】

A feasibility work on the application of magneto-rheological elastomers (MREs) to automotive components, such as engine mounts is presented. While vehicle components require the high resonance frequency in terms of ride quality and handling, it is required to have the low resonance frequency to isolate the incoming vibration. With the conventional automotive technologies, it is challenging to combine these two conflicting performance trade-offs, ride quality including handling, and NVH (noise, vibration and harshness). Over the last decades, MREs, one of the new emerging smart materials, have been widely used to resolve this technical limitation. For example, an advanced engine mount was developed by using MRE to isolate the vibration transmitting from engines. In this paper, we will focus on rear cross member bushes, which is a key component for isolating the vibration from the road, and demonstrate their improved performance by utilizing MRE. The resonance frequency shift induced by the stiffness change of MRE will be presented through the frequency response functions estimated by simulation result.