Formula 1000 Frame Design

12,007 views

Published on

Presentation on the design of the frame for a SCCA Formula 1000 car. Includes stress and displacement plot for various impact scenarios.

Published in: Automotive, Business
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
12,007
On SlideShare
0
From Embeds
0
Number of Embeds
45
Actions
Shares
0
Downloads
90
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Formula 1000 Frame Design

  1. 1. Formula 1000 Frame Design<br />Kimo “Kokonuts” Spector<br />David “Deuce” McMahon<br />Matthew “McLovin” Diasio<br />Tomas “T-Bird” Lafferriere<br />Daniel “Fat Dan” Rist<br />
  2. 2. Formula 1000 Class<br />Closest amateur competition to Formula One<br />Single-person, Open-wheel, Open-cockpit design<br />Powered by a 1000cc motorcycle engine<br />Chassis must be made of steel<br />Minimum racing weight of 1000 lbs.<br />Governed by the SCCA (Sports Car Club of America)<br />
  3. 3. Chassis Design<br />Monocoque design were used through 1950’s<br />Space Frame began growing in popularity in late 1960’s<br />Space Frame a low cost, lightweight, easy to maintain chassis<br />Now used mainly in Amateur Racing<br />
  4. 4. Our Chassis<br />Steel tube space frame design<br />Tube size specified by SCCA rulebook (AISI 4130)<br />Raised nose design for improved aerodynamics<br />Allows for the use of a full width wing<br />Comprised of Pratt & Town’s lattice trusses<br />
  5. 5. 3D Frame Model<br />
  6. 6. Cost of Materials<br />AISI 4130 is standard material for automotive frames<br />Approximately $8 per foot<br />SolidWorks gives frame volume<br />Need to find length<br />Divided volume by cross-sectional area of tube<br />177.8 ft of tube = $1,422.40 per chassis<br />
  7. 7. Other Cost Factors<br />Welding<br />$75 per hour<br />40 man-hours to complete<br />$3000 for labor per chassis<br />Worst-case scenario: need 12 frames a year<br />Assume that team orders 185 ft of tube per chassis (materials cost $1,480 per chassis)<br />$53,760 to make 12 chassis a year<br />
  8. 8. Testing Parameters<br />First test was simulated rollover onto main hoop<br />Other tests simulated impact with another F1000 car from various angles<br />Weight assumed to be minimized to 1000 lbs<br />Speed of 60 mph consistent with corner exit speed of a F1000 car<br />Used a collision time of 0.1 seconds<br />Used time derivative change in momentum to calculate equivalent force<br />
  9. 9. Inconsistencies<br />Simulates direct impact on frame<br />Body would absorb some of impact<br />Used fixed geometry restraints at wheel attachments<br />Impacts would cause the car to slide<br />Sliding would dissipate a great deal of the energy from the impact.<br />Also assumes velocity of impacting car goes to zero, absolute worst case scenarios<br />
  10. 10. Simulation Analysis<br />Roll-bar test required by SCCA<br />Frame experiences maximum displacement of .0855 in.<br />
  11. 11. Stress Analysis<br />Impact at cross point of cabin truss results in most displacement<br />6.664 in. of predicted displacement<br />All other tests result in less than 1.6 in. of displacement <br />
  12. 12. Stress Analysis<br />Simulated front impact by removing first four fixed supports<br />Deformation of less than an inch<br />

×