Newsletter 2018/3

Studia17

The Studia fair is the biggest yearly study and career event in Finland. The fair got this year almost 15000 visitors.

The team took part in The Studia Fair that was organized on 28th and 29th of November. The team was representing Metropolia University of Applied Sciences. Entire fair went nicely on our behalf and the presented HPF017 car attracted attention among the visitors.

 

Some of our sponsors have organized training sessions for the team on useful things for the project which are going to be helpful in designing and building the new car.

ANSYS:

During aerodynamic and cooling designing, we use ANSYS program package for simulating airflow on the car’s surface and inside the cooling system. Simulations are an important part of design process because of limited testing time, but they can’t give the full certainty of flows. It is also important to do practical tests on the flows and the forces that they create. Because there is no wind tunnel suitable for the size of Formula Student car in Finland or anywhere near, tests must be done on the track.

EDR Medeso offered the team a great opportunity to take part in a course on ANSYS simulation program. The course taught us how to use the ANSYS Fluent CFD program. The course lasted for two days and was organized at Technopolis in Tampere.

HBM strain gauges:

The team’s contact person from HBM gave us a comprehensive lesson on strain gauges. The lesson included theoretical part as well as a practical part where the team practiced how to install strain gauges. The practical taught the team members how to measure forces from suspension a-arms.

BearinX Online:

Schaeffler gave the team a great course on the BearinX Online program. BearinX is a program for calculating forces that are focused on a bearing. By using the program, we can analyze durability of a bearing in its planned use.

Impact attenuator test at Klippan:

13.12 we visited Klippan Ab/Oy to test impact attenuators that where designed for our new car. Formula Student rules require that there must be an impact attenuator at the front of the car. The Rules also require that the impact attenuators are physically tested. Test are designed such that the impact attenuator and part of the car’s frame are attached to a 300-kg sleigh (average weight of FS car with a driver) and smash it against a wall at a speed of 25,2 km/h. During the impact the average deceleration should be below 20 g while the peak deceleration should remain below 40 g. We tested impact attenuators made from aluminium honeycomb and foam. During the test we found out that foam didn’t work but alumunium honeycomb was scientifically proven to be viable. With aluminium impact attenuator deceleration was constant from start of impact and until the end. Top deceleration was 17,7 g. Tests went smoothly and we got precise data and we know exactly how much space new impact pad needs.