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05DKM19F1082_DKM5S2-CASE STUDY

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Set of Question A POLITEKNIK KUCHING SARAWAK JABATAN KEJURUTERAAN MEKANIKAL COURSEWORK ASSESSMENT CASE STUDY SESSION 1:2021/2022 DJJ 40173 : ENGINEERING DESIGN Prepared by: Reviewed by: Endorsed by: Lecturer Lecturer/Course Coordinator Programme Coordinator/Head of Date : Date: Department/TPA Date: COURSE CODE / COURSE NAME DJJ 40173 ENGINEERING DESIGN COURSEWORK ASSESSMENT CASE STUDY SESSION 1:2021/2022 JABATAN KEJURUTERAAN MEKANIKAL NAME MICHEAL KENNETH SITTING DURATION 4 Weeks CLO1 - CLO2 20 REGISTRATION NO. 05DKM19F1082 PROGRAMME/SECTION DKM5-S2 TOTAL MARKS 20 INSTRUCTION: 1. Use given template submission to complete the Case Study. 2. The design will be tested during class competition. Question: Engineers consider tension and compression forces when designing a building or structure and choosing the materials to build it. The foundation, frame and joints must be able to withstand enormous tension and compression forces — from the weight of its own materials, the load of people and equipment it holds and the impact of natural forces such as wind, snow, and earthquakes. By using spaghetti, it will help to further understand the effects that compression and tension forces have with respect to the strength of structures. Spaghetti cannot hold much tension or compression; therefore, it breaks very easily. This case needs the structure to represent as a model of an elevated water storage tank. It must withstand maximum load up to 500g. The maximum size of structure is 100mm x 100mm base and 150mm height. The number of used spaghetti (dry) are limited to 35 pieces counted on the structure and can be joined by using any method. The structure must consider the geometric concepts and ergonomics factor which comply to water tank. Recommend your spaghetti structure by using a systematic design process in given template (C3). Evaluate material used in design and its impact to environment (C4). Submit full report. ~ END OF QUESTIONS ~ RUBRIC FOR CASE STUDY TITLE: DESIGNING SPAGHETTI STRUCTURE Name: MICHEAL KENNETH SITTING Reg. No.: 05DKM19F1082 No Items/ Aspects Unsatisfy Fair Good Excellent Score 1. Design Problem 1 2 3 4 /4 Incomplete/ out Fair topics Good information Detail /4 of the topics covered about the topics explanation about the topics /4 2. Literature/ Incomplete/ out Fair topics Good information Research about the topics Detail /4 of the topics covered explanation /4 Good information about the topics /4 3. Project Incomplete/ out Fair topics about the topics /4 requirements/ Detail consideration of the topics covered explanation criteria about the topics 4. Generate ideas Incomplete/ out Fair topics Good information Detail with Sketch/ about the topics explanation morphology of the topics covered solutions about the topics 5. Design Selection/ Incomplete/ out Fair topics Good information Detail Pugh method about the topics explanation of the topics covered about the topics Good information 6. Testing/ Evaluation Incomplete/ out Fair topics about the topics Detail explanation of the topics covered Good information about the topics about the topics 7. Evaluation of Incomplete/ out Fair topics Detail material impact explanation of the topics covered about the topics TOTAL /28 /20 CLO2: Justify engineering design process based on design consideration, ergonomic factors, and material selection. (C5, PLO3) PLO3: design solutions for well-defined technical problems and assist with the design of systems, components, or processes to meet specified needs with appropriate consideration for public health and safety, cultural, societal, and environmental considerations (DK5) SPAGHETTI STRUCTURE Name:MICHEAL KENNETH SITTING Date: 20/10/2021 Student worksheet Instructions: Fill out the section as you work through the engineering design process 1. Define the problem. What problem are you trying to solve? What is your goal? (4marks) i. PROBLEM The material are easily broken due to the strong impact on it and not able to withstand certain load if use only one spaghetti string for all site structure. ii. SOLUTION Make a pair or more to all site structure. iii. GOAL To build a structure that able to withstand maximum load of 500g with height of 150 mm and size of 100mm x 100mm. 2. Do background research. Do research about existing spaghetti structure projects and other devices designed to protect fragile things. Write at least three of your findings here. Put the picture if necessary. (4 marks) https://sites.google.com/site/michellesengineeringsit e/structures/the-spaghetti-tower  Perfect base for perfect size.  Not too high, not too low and match with the base.  Able to withstand certain load https://mathequalslove.net/marshmallow-challenge/  Too high  Basement are big, but easily fall  Not able to hold either on soft or strong impact https://www.houstonisd.org/cms/lib2/TX01001591/C entricity/Domain/34565/Chen%20Stephanie%20Sam ple%20submission%20Spaghetti%20Tower%20Lab%2 0Report.pdf  Base small  Using triangle joint to make it more stable  Not able to hold certain load 3. Specify requirements or considerations. What limitations/ constraints are there on your project? What rules do you have to follow? (4 marks) I. REQUIREMENT a. must withstand maximum load up to 500g. b. The maximum size of structure base is 100mm x 100mm. c. The maximum size of structure height is 150mm. II. LIMITATION/CONSTRAINTS a. The number of used spaghetti (dry) are limited to 35 pieces counted on the structure III. RULES a. Material use for structure only spaghetti. 4. Brainstorm idea solutions. (4marks) a. Use the space to draw at least three different ideas for spaghetti structure. Label the sketch. Shows the limitation/ constraints applied on the designs. b. After you draw your designs, think of some possible pros and cons for each one and write them down. Idea 1: Pros: i. Wide base ii. The top have exactly same wide with bottom Cons: i. Might not able to withstand load of 500g. Idea Pros: 2: i. Wide base ii. Using pyramid joint iii. The top have exactly same wide with bottom Cons: i. Most joint focus at center ii. Each side of structure might not use because of the joint iii. Might not withstand load of 500g Idea Pros: 3: i. Wide base ii. The top have exactly same wide with bottom iii. Able to withstand load of 500g Cons: i. No support for base except side area 5. Choose a design. Work with your teammates to choose a single design that you will be built as a group. Your final design does not need to identical to one of your initial designs. It can be a combination of different people’s ideas. (4marks) a. Use Pugh selection method for choosing the final design. Use geometry concepts, strength, and number of spaghetti on structure as design criteria. Criteria Scores* Idea 1 Idea 2 Idea 3 5 1. Load Capacity(Max 500g) 33 3 3 2. Durability 33 4 15 3. Stability 24 Yes 4. Cost 44 Total Score 12 14 Decision (Yes/No/Combine) No No *Score rating: 1-unsatisfy, 2-fair, 3-moderate, 4-good, 5-excellent. b. Draw your group’s final design here. List down simple Bill of Materials (BOM). No DESCRIPTION QUANTITY UNITS PRICE 1. Spaghetti 1 35 5.00 2. Masking tape 1 0.90 3. Glue stick 1 METER 1.20 1 7.10 6. Build a prototype. Build a copy of your final design (picture). You might need to modify your design if things don’t fit together like you expected. This is OK. The picture below is the complete structure. With size of 100mm x 100mm and height of 150mm. This structure use exactly 35 of dry spaghetti string and using masking tape and hot glue gun to attached it. 7. Test and redesign. Test your structure with 100g up to 500g. It is OK if your design breaks – that is why you are testing it first! How can you change the design to make it stronger? (4 marks) a. Identify where the structure break (picture). Determine failure load that cause the breaking structure by using experimental or calculation method. 100ml 500ml After test the structure: i. The structure are still in the good condition. ii. The size of the base is same with tha size at the top. iii. With the support from at around angle, it’s makes the structure become more stable and able to withstand the load of 500ml. 9. Conclussion. Based on load that cause the member to break, suggest new material as replacement for this structure model and discuss how its implication to environment. (4 marks) Based on the load that cause the member to break,the new material suggestion as replacement is wooden skewers. Wooden skewers is more durable than spaghetti. With this replacement, the structure can withstand more tension and compression than before.

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Case studies in engineering design

— Matthews, Clifford - Nama Orang;

A multidisciplinary introduction to engineering design using real-life case studies. Case Studies in Engineering Design provides students and practising engineers with many practical and accessible case studies which are representative of situations engineers face in professional life, and which incorporate a range of engineering disciplines. Different methodologies of approaching engineering design are identified and explained prior to their application in the case studies. The case studies have been chosen from real-life engineering design projects and aim to expose students to a wide variet

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Case Study: Sticking with Family: Using the Engineering Design Process

Using this case study, students can answer the question, "How do we approach a challenge using the engineering design process?"

Sticking with Family: Using the Engineering Design Process

Using this case study students can explore a practical example to understand how the engineering design process can be applied to real-world challenges.

Using this case study students can explore a practical...

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Engineering Case Study - The Channel Tunnel

Subject: Design, engineering and technology

Age range: 11-14

Resource type: Worksheet/Activity

Last updated

22 August 2024

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The Channel Tunnel Engineering Case Study -

This resources looks at the engineering design and construction of the Channel Tunnel. These activities are specifically designed for emergency cover lessons when the usual classroom teacher is absent. However, it is also a great resource for presenting content in an Engineering or Design and Technology lesson.

They have been formatted to allow for quick printing of individual lessons for emergency cover lessons due to teacher absence.

The activities include within this resource are for students studying examples of great engineering achievements. This activity specifically looks at The Channel Tunnel .

Included in this resource

• Channel Tunnel reading comprehension activity

This activity includes a 2 page outline of the engineering challenges faced by the builders of the Channel Tunnel. The activity could be used an in individual task of as a reading task with the entire class or an an individual activity. Page 3 of this activity includes some reading comprehension questions relating to the text.

• Test yourself activity

This page consists of 10 multiple choice questions for students to test their understanding of the text from the read comprehension activity. Answers are included at the bottom of the page for students to self assess.

• Channel Tunnel Find-A-Word V1

Activity 3 is a Find-A-Word activity with 19 words related to the Channel Tunnel and matching information found in activity 1 “Channel Tunnel reading comprehension activity”. Activity 4 is an alternative layout to V1 for distribution to students sitting next to each other if the teacher would prefer students to work independently.

• Channel Tunnel Find-A-Word V2

Activity 4 is a Find-A-Word identical to Find-A-Word V1. It has an alternative layout to V1 for distribution to students sitting next to each other if the teacher would prefer students to work independently.

Life Skills Activities

• Channel Tunnel reading comprehension activity (Life Skills)

Simplified version of “Channel Tunnel Reading activity (activity 1) with true/false questions for students to answer.

• Channel Tunnel Find-A-Word (Life Skills)

Find-A-Word activity with reduced number of words and all words being either horizontal or vertical.

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