Design of the magnetorheological mount with high damping force for medium speed diesel generators

O.-H. Kang; W.-H. Kim; W. H. Joo; J.-H. Park

doi:10.1117/12.2012831

10 April 2013 Design of the magnetorheological mount with high damping force for medium speed diesel generators

O.-H. Kang, W.-H. Kim, W. H. Joo, J.-H. Park

Proceedings Volume 8688, Active and Passive Smart Structures and Integrated Systems 2013; 86881E (2013) https://doi.org/10.1117/12.2012831
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

This paper investigates the controllable magnetorheological (MR) mount for the marine diesel-generator (D/G) sets. Sometimes, significant vibrations over the allowable limit are observed on the D/G sets due to their huge excitation forces. Because the severe vibration can lead to structural damages to the D/G sets, it should be reduced to below the limit. Although passive mounts with rubber isolators are usually used, the vibration reduction performance is not always sufficient. In addition, expecting that the vibration levels required by customers will get more severe, semi-active vibration isolation system needs to be developed. To the aim, the valve (flow) mode type of MR mount has been designed. Especially, the annular-radial configuration was adopted to enhance the damping force within the restricted space. The geometry of the mount has been optimized to obtain the required damping force and the magnetic field analysis has been carried out using ANSYS APDL. To verify the performance of the developed MR mount, excitation test was conducted and the dynamic characteristics were identified. Since damping property of the MR fluid is changed by the applied magnetic field strength and excitation frequency, responses to changing applied currents and frequencies were obtained. From the results, damping performance of the MR mount was evaluated.

Citation Download Citation

O.-H. Kang, W.-H. Kim, W. H. Joo, and J.-H. Park "Design of the magnetorheological mount with high damping force for medium speed diesel generators", Proc. SPIE 8688, Active and Passive Smart Structures and Integrated Systems 2013, 86881E (10 April 2013); https://doi.org/10.1117/12.2012831

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available