Engineering Experience 4: Design a Small Solar Vehicle/Team PM12

Illumination

Teamleader
Tang Yihan Hlds final responsible for the whole of the project. Follow-up of the action list and make sure all team members carry out their assignments on time. Watches the deadlines and takes action in case they are endangered.

Secretary
Bleumers Jan Writes the meeting reports Dates the wiki page Leads the meetings (prepares agenda…)

Lead engineer
Qian Hongzhu Responsible for engineering tasks and planning Manages materials and budget.

Meeting rules
We will have at least have one meeting per week. All team members are required to be on time for these meetings and to have prepared all agreed topics/actions. All decisions will be reached with consent of all member, all members are thus required to give input on all topics/ideas. There is no time limit on the duration of a meeting. The team secretary is responsible for creating and distributing the meeting report to all team members within 2 days after the meeting took place. Each team member then has the chance to reply to this to comment on the contents of the report. These comments will be incorporated in the report by the secretary. At the start of the following meeting, the final report has to be approved by the whole team. At the end of each meeting an action list will be drafted and each item will become a team member’s responsibility. This list will be updated and discussed in the following meeting.

Wiki rules
The team secretary updates the blog and wiki page at least once a week. The wiki page will contain the most recent action list.

Absences
Everybody should attend every activity of the team (and be on time). If someone is not present, that person should inform the team leader of the reason. If someone is late, he/she has to buy the rest of the team a drink.

Sanctions
When we encounter troubles or problems and have a difference of opinion, we will vote to get the best solution. In this process, we avoid unnecessary fights with each other.

Communication with the coach
We will collect all the problems and pose them to our coach during the next class.

Client
The client in this project is the Umicore Solar Team.

Contractor
The contractor is Illumination, a fictious company founded as a requirement for this project. It consists out of the students of group 12 of  the Engineering Experience 4 course at GroupT. The company ‘employees’ are: Teamleader:		Yehan Tang Secretary:		Jan Bleumers Team members:	Haowen Sun, Hongzhu Qian, Zhengyuan Huang, Yehan Tang, Jan Bleumers

Project description
The purpose of this project is to develop a miniature, toy version of the Umicore Solar Team’s solar car. This toy car must run on solar power without the use of batteries, it’s behaviour has to be predicted and compared with the actual Umicar (on an energetic level) and has   to   take part in a race. To aid us in the development, a number of seminars will be given at GroupT, consisting out of a general presentation of the project description, a presentation given by the Umicore solar team, a presentation by Fablab about the possibilities of their workshop, a seminar on     Simulink and a seminar on technical drawing.

Approach of the project
The project is split into 3 chapters: Engineering, Enterprising and educating. The total budget for the whole project is € 200, a solar panel and a DC motor. In the engineering part of this project we will design a small solar car that will operate solely on solar power. We will design and build a  chassis, gear train and electronics, and will use solar panel and DC motor which GroupT borrowed us for the purpose of this project. We will also simulate the race to calculate the ideal transmission ratio and perform a freeroll simulation using Simulink (this data will be compared  to the results of a real life test held in week 9). The drive shaft of the SSV will be analysed, and 4 Sankey diagrams will be composed: 1 estimated diagram early in the project, 1 after the freeroll test and 2 for the actual umicar. We will create a 2D technical drawing of the SSV frame. In the enterprising chapter of the project we will perform market research to identify competitors, design a complete business plan, potentially rename and re-logo our company, create a web page and engrave the logo on the SSV. To manage the budget, a cleartable of expenditures will be kept, accompanied by proofs of payment. In the educating chapter we will create a ‘report of solutions’, containing the calculations and solutions to the engineering and enterprising questions/problems. We will also write an ‘online process report’ containing all documents made in the analysis and orienting phase, the story behind the design and creation of the SSV (like a blog), a temporary and final description of the design, and a final process report.

Deadlines:
By the end of week 1 we will present a Cooperation contract, plan of approach, WBS and Gantt chart. In case of ‘no go’ we will present an  amended copy of the required documents at the end of week 2. At the end of week 6 we will deliver the ‘Case SSV part 1’, Simulink and fill out PA 1. Depending on the weather conditions, we will test the SSV in week 9. Somewhere in the course of week 9 through 14 we will race the SSV (depending on weather conditions). In week 11 we will hand in ‘Case SSV part 2’ and fill out PA 2.

Project limitations:
The SSV will only be able to drive forwards, not backwards. There will be no steering installed as the race is held on a straight track with a guidance rail.

Expected result
We expect to build a functioning SSV (within the specifications of the client) which is capable of completing and possibly winning the final race.

General administration
Meeting lead:Yehan Tang Secretary:Jan Bleumers Meeting start:14u Meeting end:16u hours:2u

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers

Agenda
1.   Discuss and assign team roles + name company 2.	Create ‘Cooperation contract’ 3.	Create ‘Plan of approach’ 4.	Create WBS 5.	Create Gantt chart 6.	Create Logo 7.	Deadline this Friday 2011/02/18

Discussed topics
1.	Discuss and assign team roles + name company After deliberation, teamroles were divided as follows

The Gantt Chart
== Meeting Report ===== Meeting report 1 : 16/02/2011 =======  General administration ====  Meeting lead:Yehan Tang  Secretary:Jan Bleumers  Meeting start:14u  Meeting end:16u  hours:2u ===== Present =====  Hongzhu Qian,  Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers==== Agenda ====  1. Discuss and assign team roles + name company 2. Create ‘Cooperation contract’ 3. Create ‘Plan of approach’ 4. Create WBS 5. Create Gantt chart 6. Create Logo 7. Deadline this Friday 2011/02/18 ==== Discussed topics ====1. Discuss and assign team roles + name company       After deliberation, teamroles were divided as follows:        Team leader:	Yehan Tang        Secretary:	Jan Bleumers        Lead engineer:	Hongzhu Qian        Our company name will be: ‘Illumination’ 2. Create ‘Cooperation contract’       The Cooperation Contract is finished and is signed by all current team members. 3.	Create ‘Plan of approach’        The Plan of Approach is ready and will be reviewed by all members by Friday. ]http://en.wikiversity.org/wiki/User:Illumination Team leader:	Yehan Tang Secretary:	Jan Bleumers Lead engineer:	Hongzhu Qian Our company name will be: ‘Illumination’

2.	Create ‘Cooperation contract’ The Cooperation Contract is finished and is signed by all current team members.

3.	Create ‘Plan of approach’ The Plan of Approach is ready and will be reviewed by all members by Friday.

4.	Create WBS The WBS has been started and will be finished by Friday.

5.	Create Gantt chart After the WBS has been approved, it will be used as a basis for the Gantt chart.

6.	Create Logo Zhengyuan will design a company logo.

7.	Deadline this Friday 2011/02/18 All 4 above documents have to be handed in by 18:00h on Friday February 18th. Yehan will e-mail the team coach to ask how the documents have to be handed in.

General administration
Meeting lead:	 Yehan Tang Secretary: 	Jan Bleumers Meeting start:		14u Meeting end:		16u
 * 1) hours: 		2u

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers, Willem Noyen, Yared Reda

Agenda
1.	Update from coach about the 4 delivered documents 2.	New team member 3.	Discuss general concept of the car 4.	Case SSV part 1 5.	Case Simulink

Discussed topics
1.	Plan of Approach, Cooperation contract, WBS and Gantt are approved, only the actual making of the car and spent hours had to be adjusted. This has been done.

2.	Yared Reda joined the team today, his info had been entered in the Cooperation Contract.

3.	The car will have 3 wheels, 2 on the front axle, which will be the driving axle, and 1 on the rear. Questions about steering, cvt and material choice remain open.

4.	For Case SSV part 1 we have to make a Sankey Diagram and calculate the best gear ratio by hand.

5.	For case Simulink we have to simulate the SSV in the race and make a graph of different gear ratio’s against race time.

Next Meeting
08/03/2011 after seminar and coach meeting

General administration
Meeting lead:	 Yehan Tang Secretary: 	Jan Bleumers Meeting start:		14：30u Meeting end:		16u
 * 1) hours: 		1.5u

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers, Yared Reda

Absent
Willem Noyen (medical reasons)

Agenda
1.	Progress on “Case SSV part 1” 2.	SSV transmission

Discussed topics
1.	Due to to many unknowns, the sankey diagram, gear ratio and Simulink have not yet been completed. We received some good info from our coach concerning these topics and will continue working on them.

2.	After realizing the difficulty of creating a CVT (continuously variable transmission), we decided to go for a normal gearing system (gears) and to try to lower friction and losses as much as possible.

Next Meeting
15/03/2011 after coach meeting

General administration
Meeting lead:Yehan Tang Secretary:Jan Bleumers Meeting start:15u Meeting end:16u hours:1u

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers, Yared Reda, Willem Noyen

Agenda
1.	Progress on “Case SSV part 1” 2.	SSV transmission 3.	Solar panel mounting 4.	Chassis 5.	Process Report

Discussed topics
1.	We received more info concerning the 3 big parts of the Case SSV part 1 from our coach.

2.	We decided to buy our gearbox as making the gears ourselves is too hard. A home-made gearbox will also be less efficient as an expert-made one. If the precise ratio can not be bought we will buy one close to it and adjust the wheel diameter to correct.

3.	We will mount the panel with the aid of 3 or 4 telescopic antennas, that way the panel is adjustable in every direction.

4.	For the chassis we will use a plate of plexi-glass cut in the appropriate shape. We will discuss how thick the plate should be and what the shape is going to be.

5.	Everyone has to write their part of the process report and send it to Yehan. Jan will then join all parts together and check spelling+grammar.

Next Meeting
Monday 22/03/2011 - 18:00h - cafetaria

General administration
Meeting lead:Yehan Tang Secretary:Jan Bleumers Meeting start:14u Meeting end:15u30 hours:1u30

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers， Yared Reda

Absent
Willem Noyen (Medical reasons)

Agenda
1. Progress on “Case SSV part 1” 2.	SSV frame 3.	Process Report 4.	SSV parts needed 5.	Peer Assessment 1

Discussed topics
1.	Today we received feedback on all 3 parts of ‘SSV part 1’. We are almost ready to turn the report in on Friday.

2.	The frame of our SSV will be lasercut out of plexiglass. In the coming weeks we will design a shape in Solid Edge (or another program) and take it to Fablab to be cut.

3.	The process report is finished.

4.	We need following parts for our SSV: bearings for the driving and driven axles, a gearbox/transmission, a driving and driven axle, wheels, 4 antenna’s for the solar panel.

5.	All members should fill in Peer Assessment 1 this week!

Next Meeting
To be deceided by team leader

General administration
Meeting lead:Yehan Tang Secretary:Jan Bleumers Meeting start:14u Meeting end:15u30 hours:1u30

Present
Hongzhu Qian, Yehan Tang,  Zhengyuan Huang,  Haowen sun,  Jan Bleumers， Yared Reda

Absent
Willem Noyen (Medical reasons)

Agenda
1.	Progress on “Case SSV part 1”

Discussed topics
1.	Adapt sankey, internal resistance of motor: 3.2 ohm. Should be less ‘other losses’ then.

Action list
{| class="wikitable" ! Task           !! Responsable !! In cooperation with: !! End date!! Finished?|-
 * Case SSV part 1 ||   yihan     ||       All            ||         ||          |}

Next Meeting
To be deceided by team leader

Solar Panel-Specs

 * }

"Asc corrected" and "I-corr" are the values after correction for the spectrum of solar light versus spotlight (* 0,88/0,3) Peak power is at 7V and 0,91A : 6,37W