This repository contains project report and supporting code submitted in spring 17 for meeting the requirements of MAE 535: Design of Electromechanical Systems course taken under Dr. Gregory Buckner at NC State University.
The primary objective of this project was to apply the modeling, analysis, and design principles of MAE 535: Design of Electromechanical Systems course to optimize the design of a semi-active haptic feedback device to produce controllable, high- amplitude damping forces with minimal size, weight, and electrical input power. Specifically, the task was to design and simulate a device that met or exceeded the following design specifications:
- An “on state” damping force of at least 40 N at a velocity of 1 m/s (more is better, but not more than 120 N) using a 12V, 1A power source (less required electrical power is better).
- An “off state” damping force of not more than 5 N at a velocity of 1 m/s (less is better)
- An electrical (LR) time constant of less than 100 ms (0.1 seconds)
- Featured the smallest possible size and weight
The following design parameters were fixed:
- The spool and cylinder were made of iron.
- All other components were non-ferromagnetic (aluminum, plastic, rubber, etc.).
- The MR fluid for this design was Lord Corporation’s MRX-336AG.
- The coil was wound using 30-gage copper magnet wire.
- The fluid gap was 1.0 mm or more.
- The central through hole was 1.0 mm.
A more detailed discussion about the techniques used can be found in 'Project_Report_Final.pdf' file in this repository.
My role in the project was performing design optimization using genetic algorithm, running a 2D simulation of the magnetic circuit (FEMM) and preparing the project report.
Current students: please avoid plagiarizing this code as it is in violation of the NC state academic code of conduct.