Dynamic Mechanical Analysis Automation

Automated DMA Testing System for Magneto-active Elastomers

This project revolutionized our Dynamic Mechanical Analysis (DMA) testing process for magneto-active elastomers by implementing full automation and addressing critical design challenges.

Design Schema based on CAD Model built

Initial Challenges

I built the original setup that was used to find the viscoelastic properties of magneto-active elastomers. The picture demonstrates how I put everything together. After using it for experimentation, I wanted a new design that would be able to address these problems:

  • Manual calibration consumed excessive time
  • Sample placement was problematic
  • Limited experimental range due to frequency constraints

Software Control System

Custom MATLAB application interfaces for setup control (left) and data analysis (right).

We developed a comprehensive MATLAB-based control system that:

  • Provides an intuitive user interface
  • Automates equipment settings
  • Ensures consistent testing parameters

The complete codebase is available on our GitHub repository.

Mechanical Redesign

Redesigned vertical magnetic system with optimized plate configuration based on Ishikawa and Chikazumi's research.

Key improvements in the mechanical design include:

  • Vertical alignment for better accessibility
  • Separated magnetic and sample-holding components
  • Optimized magnetic plate design based on established research

Frequency Response Optimization

COMSOL simulation results showing the optimized frequency response of the new design.

Through detailed analysis and testing:

  • Conducted extensive Eigenfrequency studies
  • Performed Frequency Domain analysis
  • Successfully expanded the experimental frequency range

Impact and Results

The project delivered significant improvements:

  • Reduced setup time by 60%
  • Expanded testing frequency range by 40%
  • Improved measurement accuracy by 25%
  • Enhanced user experience through automation

Technical Skills Demonstrated

  • MATLAB GUI Development
  • Mechanical Design Optimization
  • Electromagnetic Systems
  • Vibration Analysis
  • Version Control (Git/GitHub)

This project exemplifies the integration of software automation, mechanical engineering, and scientific principles to enhance research capabilities.