Study of Nonlinear Hydraulic Engine Mounts Focusing on Decoupler Modeling and Design

Paper #:
  • 971936

Published:
  • 1997-05-20
Citation:
Royston, T. and Singh, R., "Study of Nonlinear Hydraulic Engine Mounts Focusing on Decoupler Modeling and Design," SAE Technical Paper 971936, 1997, https://doi.org/10.4271/971936.
Pages:
11
Abstract:
Decoupler nonlinearities of the automotive hydraulic engine mount affect its isolation performance and the transmission of structure-borne noise. The kinematic gap nonlinearity of the decoupler is examined in considerable detail in the context of the quarter car model. It is shown that while modeling it with a “softened” nonlinear expression may only moderately affect predicted system behavior at the excitation frequency, it can significantly after it at higher harmonics, changing the predicted level of structure-borne noise transmission. Studies of multi-harmonic motion and vibratory power transmission under sinusoidal and composite excitation conditions confirm that, in fact, use of a decoupler with a “softened” nonlinearity improves performance.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2018-06-27
Article
2017-03-13
Technical Paper / Journal Article
2011-04-12
Technical Paper / Journal Article
2010-09-28