Hydraulic bushings or mounts are commonly used in automotive suspension and powertrain systems to improve vehicle vibration and structure-borne noise features while influencing ride and handling properties. This article aims to analytically examine certain features of hydraulic suspension bushing designs using frequency domain models. First, a linear time-invariant model of a hydraulic bushing with an inertia track is used to examine the dynamic stiffness (magnitude and loss angle) performance up to about 60 Hz with a given excitation amplitude. Second, the effect of inertia track parameters on dynamic stiffness is examined, and the key differences between fluid-filled suspension bushing and hydraulic engine mount are investigated by comparing the fluid chamber compliance ratios. Finally, the frequency dependence of inertia track parameters is analyzed with a quasi-linear model and the measurements of a laboratory prototype device.
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ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 21–24, 2016
Charlotte, North Carolina, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5020-6
PROCEEDINGS PAPER
Examination of Hydraulic Suspension Bushing Design Features Using Frequency Domain Models
Tan Chai,
Tan Chai
Southern Illinois University, Carbondale, IL
Search for other works by this author on:
Rajendra Singh
Rajendra Singh
Ohio State University, Columbus, OH
Search for other works by this author on:
Tan Chai
Southern Illinois University, Carbondale, IL
Rajendra Singh
Ohio State University, Columbus, OH
Paper No:
DETC2016-59564, V008T10A009; 7 pages
Published Online:
December 5, 2016
Citation
Chai, T, & Singh, R. "Examination of Hydraulic Suspension Bushing Design Features Using Frequency Domain Models." Proceedings of the ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 8: 28th Conference on Mechanical Vibration and Noise. Charlotte, North Carolina, USA. August 21–24, 2016. V008T10A009. ASME. https://doi.org/10.1115/DETC2016-59564
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