Motorsports teams gear up for spring and summer competitions
Buckeyes are engineering new and exciting innovations this year in each Motorsports Student Project at The Ohio State University Center for Automotive Research. Every team aims to engineer the most competitive vehicle and they have different objectives to achieve that goal. Many teams have improved their vehicles by applying computer-aided design and simulation, reducing weight, enhancing reliability and optimizing each component.
Supermileage makes super enhancements
Ohio State Supermileage is taking a whole new direction with its vehicle. In 2016, the team achieved 265 miles per gallon; this year, the team expects to be far more efficient.
The biggest change is in the vehicle’s powertrain. Instead of using the engine to power the rear wheel, the engine powers a three-phase generator that runs an electric motor. This allows the engine to stay in the optimum operating speed while the electric motor changes speed, dramatically increasing the efficiency.
Additionally, almost all the engine’s components have been reworked. The team machined all the motor’s parts besides the block, crankcase and crankshaft. They also reduced the displacement and implemented electronic fuel injection.
Other changes were made to the vehicle’s exterior. The team crafted a lightweight, rigid and aerodynamic carbon fiber canopy that cocoons the driver. At the front and back of the vehicle, the team redesigned the bodywork using fabric stretched over a wooden frame. The team also plans to steer itself to victory with its new lightweight cable steering system.
“I’m pretty stoked to see this thing rolling and all the systems working together,” team captain Thomas Clifford said. “It will be great to see the net impact that all these changes have had on the vehicle.”
The competition will be hosted at the Eaton Proving Grounds in Marshall, Michigan, on June 6 and 7.
EcoCAR explores autonomous tech
Although the competition’s focus is still on fuel efficiency, the latest iteration of the competition incorporates connected and autonomous technology. Ohio State EcoCAR is excited to explore these new areas.
The team is still in the planning phase as none of the universities has received a vehicle yet. Students spend most of their semiweekly meetings applying computer-aided design and running simulations. The team will be ready to hit the ground running once the Blazer arrives.
In the meantime, the team is also conducting outreach events at multiple Columbus-area middle and high schools to spread awareness about the EcoCAR Mobility Challenge and STEM.
“Passing knowledge is easy, but passing interest is hard,” said Phillip Dalke, the team's propulsion systems integration leader. “That's what we're trying to do here—spark the next generation’s passion for STEM.”
This year’s competition is in Atlanta, Georgia, May 18-24.
Underwater Robotics reimagines their robot
The team is making substantial changes to four of the robot’s areas: its chassis, electronics, acoustics system and manipulator system.
Last year’s chassis featured a tubular shape and was made from sheet metal, which no team had ever done before. Ohio State’s Underwater Robotics team won points for uniqueness and craftsmanship, but the shape made it difficult for students to maintain the robot. This year, the team is designing a chassis that solves this problem.
The students are completely reworking the robot’s custom electronics to make it more reliable and easier to use. Students are also revising the robot’s acoustics system—it can detect and navigate the robot to audible targets called “pings.”
The final significant change to the robot is in its manipulator system. The team is removing its high-maintenance, air-powered manipulator system and replacing it with an electromechanical system. Now, instead of replacing air canisters to power the grabber, torpedo launcher and marker dropper, the team will only have to recharge a few batteries.
“Last year, we did the best we had ever done before,” said team president Benji Justice. “This year, based on the changes to the tasks in the competition, we’ll do an even better job. Our team has had a lot of growth, and I think we’re set up to get into the finals this year.”
This year’s competition takes place in San Diego from July 29 through August 4.
Formula Buckeyes race to finish their vehicle
The car’s chassis features a carbon fiber tub and tubular rear, which reduces weight by 15 pounds and allows for easier access to the engine. Other changes include improvements to the vehicle’s dampers and aerodynamics. The team also 3D-printed custom titanium wheel hubs and aluminum steering components.
The first competition for 2019 takes place at the Michigan International Speedway from May 8 to May 11, and the second competition is in Barry, Ontario, from May 30 to June 3.
Baja Buckeyes Bound for Success
Baja Buckeyes engineered its lightest vehicle ever this year. To achieve this, the team used finite element analysis software to understand where they could optimize the vehicle’s structure. They also lightened critical vehicle components like the trailing arms, gearbox and driveshaft.
“I’m excited to see where all the weight savings takes us, and I want to see whatever we can improve,” said Benjamin Moninger, the team’s frame and suspension design lead. “I even want to see some failures. Then we can correct them to make some of the best components possible.”
The first competition is on April 11 at Tennessee Tech University, and the second is at Rochester Institute of Technology on June 3.
Buckeye Current crafts a custom frame
Buckeye Current used a team-developed simulation tool to choose the highest-performing powertrain, and they are focusing on improving the battery pack to hold as much energy possible in the smallest space available.
The new powertrain and battery design also call for a new cooling system. The team is working hard to avoid previous thermal limitations. Improved aerodynamics will maximize heat rejection and minimize drag.
Buckeye Current will compete with its brand new bike in the Isle of Man TT Zero race in June 2020.
by Jake Berg, Center for Automotive Research writing intern
