Exercises

Exercise: Select one SE methodology that can be useful for you (from your field, or see NASA Handbook, or dig into SEAri-MIT research, such as the Socio-Technical 2010 paper from Ross and Rhodes) and attempt to apply and adapt part of it to a maritime case that is useful for you. Think about “perception of value”; different stakeholders prioritize different outcomes. 

Can you make a good poster/figure or synthesized document that explains your approach?

NB! "Adapting”, “improving”, “developing” means “change” in the status quo, either towards a better product and/or a more efficient process. When adapting the methodology, investigate how to avoid negative consequences, especially when prototyping is unavailable. Lastly, use the idea of “trade-offs” as a starting point to quantify different notions of “value.”

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Read Chapter 2 of NASA Systems Engineering Handbook (2007 version) - https://soma.larc.nasa.gov/mmx/pdf_files/NASA-SP-2007-6105-Rev-1-Final-31Dec2007.pdf

Professor Wada's lecture 8 proposed the solution to 3 exercises presented during class in the following slides:

Lecture 8 - Slides 

Solve the three questions and submit your answers.

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Based on the Professor's Jean-David lecture, please solve the following stability problems.

Students from different areas, please feel free to send doubts to daniel.prata@usp.br

Exercise 1:

A box-shaped vessel (24 m x 5 m x 5 m) floats on an even keel with a 2 m draft. The vertical position of the center of gravity KG is 1.5 m. Calculate the initial metacentric height.

Exercise 2:

Two box-shaped vessels are each 100 m long, 4 m deep, and have a draft of 3 m. Their KG is equal to 2.5 m. Compare their initial metacentric heights if one has a beam of 10 m and the other is 12 m wide. The boats are in a river.

Exercise 3:

A ship of 5000 tonnes displacement has a KG of 4.5 m and a KM of 5.3 m. 2000 tonnes with a KG of 3.7 m and 1000 tonnes with a KG of 7.5 m are loaded. Find how much deck cargo (KG 9 m) may be loaded if the ship is to sail with a minimum GM of 0.3 m.

Exercise 4:

A ship of 6000 tonnes displacement has a KM of 7.3 m and a KG of 6.7 m floating upright. A weight of 60 tonnes already on board is shifted 12 m transversally. Find the resultant list.

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Write a cohesive text (minimum 500 words) addressing the key concepts from the first three Ocean Design Systems course classes that showed how Ocean Systems are becoming complex and sustainable. Your response must cover the following topics:

1. Renewable Energy in Ocean Systems: Discuss the potential of ocean-based renewable energy sources, such as offshore wind, wave, and tidal power. Highlight how these energy sources can contribute to reducing carbon emissions, the transition to sustainable energy systems, and the technological and logistical challenges they face.

2. Carbon Capture and Storage (CCS) in Ocean Systems: Explain the ocean's role in carbon capture and storage, focusing on its potential to mitigate climate change. Address the technologies used for CCS, the environmental and operational challenges, and the impact of such systems on reducing global carbon footprints.

3. Digitalization of Ocean Systems: Examine the role of digital technologies, including sensors, data analytics and AI, in improving the design, monitoring, and management of ocean systems. Discuss how digitalization can enhance efficiency, safety, and sustainability in marine operations and what barriers exist to implementing these technologies at scale.

Your text should demonstrate the relevance of each topic and how they contribute to the overall goal of sustainable and safe ocean system design.

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