Electronics & Connectivity - September 5, 2012 - 4

tech report
Telemetry helps Formula SAE team close the loop on design
The premise behind Formula SAE is that a fictional manufacturing company has contacted a design team to develop a small Formula-style racecar for the nonprofessional weekend autocross racer. Thousands of students at hundreds of colleges and our students up to speed in just a year or so. We encourage freshmen and sophomores to get involved. The serious discussion about the design and concepts for our 2013 entry started in the fall of 2011, so we can devote the 2012-2013 academic year to building, testing, and optimization.” (For a “teaser” of VT’s 2011 entry, click here.) The very first thing West asked the team to do in the fall of 2011 was to break down and analyze the results from the past five years of competition and make a forecast of what the winning times will be in 2013. From that forecast, the team could begin to establish design goals for reliability, performance, serviceability, and driveability. The team started to play with design assumptions and trade-offs such as, “If we can build a 300-lb car, how much horsepower will we need? If the car weighs 350 lb, what does that do to the power requirements?” Brice Collamer, Leader for VT’s 2012 Formula SAE team, emphasizes the rules are very open to encourage creativity. “You could have a steel space frame chassis, carbon fiber monocoque, whatever you want, and any engine so long as it is under 610 cc. Most of the rules are for safety and to keep costs within reason. VT’s entry this year had a Yamaha WR450F bored and stroked to 502 cc with a shared gearbox featuring electropneumatic paddle shifters.” “We design for dynamics and fatigue,” West said. “You have to know the loads. This is not a static vehicle. You have to look at dynamics, timevariant loading: you’re accelerating or decelerating, loading the suspension, shifting gears, hitting bumps, torqueing the half-shafts, applying lateral thrust...you have to understand the loading so you can design the vehicle properly for the dominant inputs. If you design too heavy, you’re giving away
SAE electronics+connectivity

The 2012 Virginia Tech Formula SAE team and car. universities participate on Formula SAE teams every year. Each team designs, builds, and tests a prototype, and at the end of the year, the teams gather in Michigan or Omaha to compete on the basis of cost, presentation, design, acceleration, skid pad, autocross, endurance, and economy. “We run our team continuously,” said Virginia Tech Associate Professor and team faculty adviser Dr. Bob West. “With our philosophy of balancing education and competition, it is very difficult to get

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September 5, 2012


http://www.youtube.com/watch?v=N9Yy2bhuVek

Electronics & Connectivity - September 5, 2012

Table of Contents for the Digital Edition of Electronics & Connectivity - September 5, 2012

Electronics & Connectivity - September 5, 2012
Contents
The Ups and Downs of Connectivity
Tech Report
Securing IT in the sky
Data Collection Made Easy
Ad Index
Resource Links
Upcoming from the Editors
Electronics & Connectivity - September 5, 2012 - Cover1
Electronics & Connectivity - September 5, 2012 - Electronics & Connectivity - September 5, 2012
Electronics & Connectivity - September 5, 2012 - Contents
Electronics & Connectivity - September 5, 2012 - The Ups and Downs of Connectivity
Electronics & Connectivity - September 5, 2012 - Tech Report
Electronics & Connectivity - September 5, 2012 - 5
Electronics & Connectivity - September 5, 2012 - 6
Electronics & Connectivity - September 5, 2012 - 7
Electronics & Connectivity - September 5, 2012 - 8
Electronics & Connectivity - September 5, 2012 - 9
Electronics & Connectivity - September 5, 2012 - 10
Electronics & Connectivity - September 5, 2012 - 11
Electronics & Connectivity - September 5, 2012 - 12
Electronics & Connectivity - September 5, 2012 - 13
Electronics & Connectivity - September 5, 2012 - Securing IT in the sky
Electronics & Connectivity - September 5, 2012 - 15
Electronics & Connectivity - September 5, 2012 - 16
Electronics & Connectivity - September 5, 2012 - 17
Electronics & Connectivity - September 5, 2012 - 18
Electronics & Connectivity - September 5, 2012 - 19
Electronics & Connectivity - September 5, 2012 - Data Collection Made Easy
Electronics & Connectivity - September 5, 2012 - 21
Electronics & Connectivity - September 5, 2012 - 22
Electronics & Connectivity - September 5, 2012 - 23
Electronics & Connectivity - September 5, 2012 - 24
Electronics & Connectivity - September 5, 2012 - Upcoming from the Editors
https://www.nxtbook.com/nxtbooks/sae/12DEC1128
https://www.nxtbook.com/nxtbooks/sae/12DEC0905
https://www.nxtbook.com/nxtbooks/sae/12DEC0530
https://www.nxtbook.com/nxtbooks/sae/12DEC0301
https://www.nxtbook.com/nxtbooks/sae/ec_prototype
https://www.nxtbookmedia.com