Thesis
Design and optimization of a magnetorheological disc brake with serpentine flux path for haptics
Washington State University
Master of Science (MS), Washington State University
05/2016
Handle:
https://hdl.handle.net/2376/102976
Abstract
Magnetorheological (MR) fluid, a type of smart fluid whose viscosity is dramatically increased by exposure to a magnetic field, is used in widespread applications. One of these applications is a disc brake, where the MR fluid replaces the friction pad in order to cause braking action. There are many commercially available disc brakes today, but their design limits the amount of useful area that a strong flux can travel through. Our research has been focused on creating a MR disc brake that incorporates a serpentine flux path, which can concentrate and guide the flux through the fluid. This results in a stronger disc brake without increasing the footprint of the device. This thesis explores the design of a serpentine MR disc brake, and compares its braking torque to a common MR disc brake design, then discusses optimizing the design further. The brakes are modeled using a software package that simulates magnetic flux in a two-dimensional cross-section. Our goal was to demonstrate that by adding a serpentine flux path to the brake the torque could be substantially increased, while keeping the overall size of the device the same. Analysis of the braking torque produced by the MR disc brake reveals that adding a flux path can increase overall braking torque. By optimizing the design it can be further increased.
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Details
- Title
- Design and optimization of a magnetorheological disc brake with serpentine flux path for haptics
- Creators
- Paul Vern Marshall
- Contributors
- Hakan Gürocak (Chair)Linda Chen (Committee Member)Hamid Rad (Committee Member) - Washington State University, Engineering and Computer Science (VANC), School of
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Number of pages
- 68
- Identifiers
- 99900525157301842
- Language
- English
- Resource Type
- Thesis