Last month we announced our sponsorship of the Formula Student team, Delft University of Technology Racing (DUT Racing). The team is using Jama to plan, build, test and deliver its new car for the 2014 racing season. We checked in with chief engineer Marinus van der Meijs and team manager Tim de Morée recently to hear about the team’s progress as everyone heads into the next phase of development.
Where are you in the process?
We’re concluding the design process we’ve been formalizing for the past month. We’ve implemented Jama and gotten our team up and running using it. We’re modeling in Catia V6 from Dassault Systèmes, and finding it very easy to share drawings and schematics with the team in Jama.
How did the implementation of Jama go for DUT Racing?
I did some work up front to get the admin panel configured to work optimally for us. We also worked with one of our alumni who now works for Tesla, to get some help and guidance for how best to use Jama. Onboarding and learning to use Jama has been very smooth; it’s a very intuitive system.
What features are you finding to be most beneficial?
Jama has been particularly helpful for managing our requirements. We have nearly 700 requirements, so keeping track of everything is critical to our success. Previously we hadn’t even been able to quantify our requirements, let alone have them stored in a central location where all changes can be monitored and traced back.
We’ve taken advantage of some of the customization options in Jama, which has helped us maximize the benefit we’re seeing. We’re using it to track our project planning and tasks, and hold all of our documentation. Overall, Jama is empowering us to collaborate more completely and efficiently.
What are some of the challenges your team is facing at this stage?
Time and resources are our biggest constraints when it comes to designing our ideal car. There are certain parts that we’d like to build that are proving too costly and time consuming, so we’re working on alternatives.
On the 10th of January, you presented your design to the public, can you tell us more about the design of the new car?
The DUT14 is our fourteenth car and will be an electric four wheel driven car enhanced with aerodynamic devices. The design philosophy was to design an extremely lightweight car. We presented our design to ad advisory committee of professional engineers who provided expert guidance and feedback. The complete design presentation can be watched online on Collegerama.
This year we have designed our own tires, which are smaller in outer diameter compared to the tires from previous years. This makes it possible for the transmission to be 50% lighter compared with the design from the previous year. The transmission, brake system and the motor are all placed inside each wheel. By connecting the transmission almost directly to the rim of the wheel it’s possible to leave out the spokes we see on normal wheels. This resulted in a total weight reduction of 2kg per wheel compared to last year. You can see the design schematics below.
We’ve also been able to reduce in the chassis department. The core material used for the new monocoque is aluminum honeycomb instead of foam.
In total, the DUT14 will weigh around 155kg. This is more than 20kg lighter than its predecessor. The front wing, rear wing and diffuser deliver 75kg of downforce at 60 km/h. The top speed will be 130 km/h and the car will have a total power of 144 bhp. The 0-100 km/h time is estimated at 2.3 seconds.
A special note of congratulations to the DUT Racing team as it was officially certified as the Guinness World Record holder for fastest 0-100 km/h acceleration of an electric car. Check out the video of their successful attempt below.