Improved Thermal Transport for Helical Brake System - PowerPoint PPT Presentation

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Title:

Improved Thermal Transport for Helical Brake System

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Title: Slide 1 Author: cloerj Last modified by: Dirk Created Date: 3/8/2005 5:52:20 PM Document presentation format: On-screen Show Company: Portland State University – PowerPoint PPT presentation

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Learn more at: http://web.cecs.pdx.edu
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Title: Improved Thermal Transport for Helical Brake System


1
Improved Thermal Transport for Helical Brake
System
  • Group Members
  • Jim Cloer
  • Matt Evonuk
  • Arek Gazdowicz
  • Dirk Tarman

Industry Sponsor Braking Technologies
Faculty Advisor Dr. David Sailor
Senior Capstone Spring 2005
2
The HeliCalTM Brake Caliper
  • Improved clamping force to actuation force ratio
  • Improved wear characteristics
  • Equal pad pressure over entire rotor

3
Problem Statement
  • Design a new housing for the helical brake
    design that has improved heat dissipation and is
    able to withstand the mechanical stresses placed
    upon it

4
Design Goals
  • New housing
  • Can be incorporated into assembly
  • Reduce material usage
  • 400 Increase in heat flux
  • Reduce the chance of thermal failure
  • 2 safety factor

5
Chosen Geometry
  • Concentric vanes
  • Fewer stress concentrations
  • Less material
  • Ease of manufacture
  • Low cost

6
Testing
  • Options
  • - Custom built test stand
  • - Baja test stand
  • - Place on racing kart
  • - Hot plate

7
Stress Verification
8
Thermal Verification
9
Thermal Result
10
Final Prototype
11
Results
  • Safety factor greater than 2
  • 300 increase in heat flux
  • Adaptable to current design
  • Uniform heat flux distribution
  • Simplified assembly
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