Design of MRF damper-for an Indian automobile

Supervisor: Prof. K. Gupta

Mohit Bansal (2009ME10593)Pranav Jaiswal (2009ME10607)

Introduction• A Damper filled with magneto-rheological fluid which is controlled by a magnetic

field, usually using an electromagnet. This allows the damping characteristics of the shock absorber to be continuously controlled by varying the power of the electromagnet.

• Basic operational modes of MRFs: (a) flow model, (b) direct shear mode, and (c) squeeze mode

• Mono tube, Twin tube & Double-ended MRF dampers

Problem Definition & Objective Ride comfort directly dependent on suspension system Uneven road profiles in India Newest development in the field of suspension systems are

MRF dampers- simple in construction, compromise between high frequency isolation and natural frequency isolation, semi-active control, little power consumption & very quick response

1. Simulation on suspension system of a selected Indian car Optimized damping coefficient 2. Design of MRF damper using the optimized damping coefficient.3. Fabrication and Performance test

Literature Review1. Typical magneto-rheological dampers according to

arrangement configurations of magneto-rheological fluid cylinders and magneto-rheological fluid control valves

2. Design, development and testing of new fail-safe semi active (MRF) damper for high-mobility multi-purpose wheeled vehicle

3. Design, fabrication and evaluation of magneto-rheological damper

4. Application of MR dampers in automobile suspensions

Literature Review on MRF dampers

Understanding Vehicle suspension system using quarter car model

Bump modeling

Design of a MRF damper for a selected Vehicle suspension system with appropriate control system

Undertaking the fabrication and testing of MRF damper

Gantt chart

References1. Magneto-rheological fluid dampers: A review on structure design and analysis Xiaocong Zhu, Xingjian Jing and Li ChengJournal of Intelligent Material Systems and Structures published online 20 March 2012

2. A new magneto-rheological fluid damper for high-mobility multi-purpose wheeled vehicle Umit Dogruer, Faramarz Gordaninejad*, Cahit A. EvrenselComposite and Intelligent Materials Laboratory, Mechanical Engineering DepartmentUniversity ofNevada, Reno, NV 89557, USA

3. Design, Fabrication and Evaluation of MR DamperA. Ashfak, A. Saheed, K. K. Abdul Rasheed, and J. Abdul JaleelWorld Academy of Science, Engineering and Technology 53 2009

4. Experimental Investigation of Using MR Fluids in Automobiles Suspension SystemsS.Q. Abu-Ein, S.M. Fayyad, Waleed Momani, Aiman Al-Alawin and Muntaser MomaniDepartment of Mechanical Engineering, Faculty of Engineering and Technology,Al-Balqa Applied University, Amman, P.O. Box 15008, 11134, Jordan

5. Design of Magneto Rheological Fluid Damper For a Vehicle SuspensionApoorv Khandelwal, Varun GuptaDepartment of Mechanical Engineering, IIT Delhi, May 2010