Week 14 (10.24)

This week, we still have not found a suitable brake rotor for our project. So Jin and Jong decided to use their own car to test our project, because their cars use ventilated brake rotors. In Friday afternoon, we had checked the vehicle to make sure whether they meet our requirement.We checked Jin's car first, his car is not very suitable for our project. This is not enough space to install our nozzle and sensor.When we checked Joing's car, we find a hole on the dust shield. It looks very good for our project, it allows us to install our nozzle there.

 

We bought some nozzle for garden using, but Roman said the water spray droplet size is too big for our project.So we have to find smaller one.

Week 13 (10.17)

This week, the rest of groups completed the second stage presentation to the class.After the presentation, each group went to meet their technical advisor to discuss their technology project. Our groups talked to Roman about the latest progress of our project. Then we met in the workshop at 1 o'clock. Roman already grind the brake caliper and rotor for us.

 

Then we started to clean up the old lubricant and rust on the our brake caliper. After the clean, we put the new lubricant inside the brake caliper to make sure it working smoothly.After we finished those things, we try to install the brake rotor and brake caliper in that car. But we find the inner diameter is smaller than the hub and bearing. Then we decide to grind the edge of inner brake rotor a little bit. After grind the brake rotor, it is still not fit with hub and bearing. Then, we decide to use another Holeden brake rotor. This brake rotor holes is not fitting with bolts. So we have to drill five new holes on this brake rotor. When we try to install this one on the car. It is still not fitting, the inner diameter is still too narrow. Finally, we give up to test our project on this testing car.

 We go to another workshop to check the Range Rover car whether it is meet our requirement.After we checked, we think this car should be meet our requirement.But the best choice still is to find a suitable new second brake rotor, that should be easier for us. If we cannot find new brake rotor, we are going to test our project in the Range Rover.

Week 12 (10.10)

Today, we did our technology project presentation stage two in the class, the lecturers said we did pretty good in the presentation stage two.We are very happy to hear that.Our groups made an appointment with Roman. We were going to workshop to test our brake rotor and caliper in this afternoon. When we try to install brake rotor to that test car, we find it is not very suitable. But, we can grind a little bit brake rotor to match that test car.And also we have to grind the brake caliper a little bit. So we went to welding room to find machine and tools to grind the caliper and rotor. But we did not find the suitable tools to grind brake rotor, we just leave it till next Monday. Roman help us to grind the brake caliper, but it still not finished. That machine can not grind the caliper very well. We just leave them till next week. We have to ask welding class teacher to get suitable machine and tools to grind them.

 

Week 11 (10.03)

This is second week of our semester break, we did not do many things in this week. Because we have to find a Panel and Paint Workshop for our Body System assignment.In this week, our group members meet twice to discuss our technology project in the library. Jong fix the Board problem which happened before, now the Arduino board works well.Jin and I want to calculate how much water do we need for this project.If we want to know how much water do we need, we must know the Energy Tranferred when car brakes.We want to use this formula to calculate the energy tranferred.Then we can get how much water we need.

Q = m c △T

Q = energy transferred (J)

m = mass of substance (kg)

c = specific heat capacity

△T = temperature change (K or ℃）