Tuesday, June 29, 2010

Marine Vessels is a term used to describe a vehicle that moves through water with no difficulty.

Examples of the types of marine vessel are:

- A passenger vessel- the function of a passenger vessel is to carry passengers. This includes cruise ships, ferries etc.




- Cargo vessels-a cargo vessel or ship is any vessel that carries/transports goods and commodities. Examples of cargo vessels are container ships and bulk carriers.




- Fishing vessels-Fishing vessels are similar to commercial vessels but they are much smaller in size.



- Bireme vessel- This a wooden vessel which was used by the Greeks since the 350 BC. It was used as a naval welfare and commercial.




What influenced the choice of hull design, materials and propulsion method in my DT project?
We had three designs from which we chose the best one. The main influence was our chosen design specifications in the beginning of the project.The whole design influences the movement of the marine vessel for its proportional ratio compared to the force of the motor can either cause the boat to move faster or slower. The boat also needs to be streamline and that is why we decided to choose the design with a catamaran hull so it can cut through the water without any additional assistance. We chose to use plastic as we were provided with that, it was light and so it could float well on water.



Evaluation of my performance at each stage of the design cycle and the success of my product.

Investigate Stage- In the investigate stage I think we did a good job researching and understanding the importance of marine vessels and the use of different hulls. My strengths were that I was able to I would spend time to make all my research and work informative and organized. I also feel that we explained the boat (which runs on renewable energy sources) as a good solution to our problem (boats contribute a lot to pollution) which was indicated in the design brief. My weaknesses were that we did not refer to the criteria and so we left out many vital parts of it e.g. the design brief, problem analysis etc. We improved on this by referring to the Criteria and making all the necessary changes. If I were to repeat this stage I would make sure that I set my tasks right and understand he expectations so that we don’t leave anything out.

Design Stage- I think our designs turned out to be very creative as it included our design specifications and were very unique. I think next time we should have added the voltage of the solar panels or the energy required by the chosen energy source. I also feel that our designs were well analyzed against the design specifications and the aim well. Our main weakness in this stage was that we had to design our hulls on an unfamiliar program (Google Sketch up) and we weren’t allowed to download any pictures or drawings that would guide us (either from the internet or from the Warehouse in Google Sketch up). This took us time to get use to and design amazing hulls.

Plan Stage- Personally I think we needed to add more time for the create stage. My strengths were that we were able to organize it well and with detail. My weaknesses were that we assumed that we would be able to finish the hull in the DT lessons.
Create Stage- The create stage was probably the hardest yet the most fun! We were able to start our hull. My strengths were that we were able to draw our net of the hull, use the line bender to bend the plastic and get the appropriate shape of the hull. Our weaknesses were that we didn’t follow the plan. We didn’t have enough time to finish our hull.

Evaluating the success of our product- I feel that our boat is actually pretty good. I think that if we had more time we would have been able to finish it. I also feel that we worked well as a group but I think we should have an equal share of work for each stage. We also should have designed a simpler design which could have been completed in the time allocated in our plan.