8/9/2019 UEME1132-_Assignment_1_1_1_201405

http://slidepdf.com/reader/full/ueme1132-assignment111201405 1/2

UNIVERSITI TUNKU ABDUL RAHMAN

Faculty : FES Unit Code : UEME1132

Course : Bachelor of Mechanical Eng.

Bachelor of Manufacturing & Materials Eng.Bachelor of Chemical Eng.

Unit Title : STATICS

Year/

Semester

: Y1S1 Lecturer : Dr Ooi/Ms Koo

Session : 2014/05 Tutor : Ms LamFS

Assignment 1: Product Dissection (10%)

Hand-out date: Week 1; Due date: Week 12 (Friday 5pm)

Learning Outcomes: To review free-body diagram, isolate subcomponents, identify

applied loads and reaction forces and moments; To work in teams; To describe how

engineers design to avoid failure.

In this assignment, working in a team of 2 students, you are required to choose a

relatively simple and relatively affordable consumer product (e.g. stapler, fishing reels,

chair you are sitting on etc.) or toy that the three of you are interested in which you will

isolate the subcomponents of the product and discover forces or/moments that act on

these subcomponents.

You are required to carry out research beyond lecture notes and textbooks to find the

needed information for your assignment. For e.g. weight of the material of your product,

other material properties, types and functions of machine elements which are found in

your product etc. You will only need to submit one report for each group of 3 students.

You are required the following tasks:

1. 

Within one week you should decide on the product and find your lecturer

during office hours or after class to get your product approved.

2. 

Take apart the product (if possible) and identify at least two locations or

situations where failure would most likely to occur.

8/9/2019 UEME1132-_Assignment_1_1_1_201405

http://slidepdf.com/reader/full/ueme1132-assignment111201405 2/2

3.  Draw the free-body diagrams for these two cases and predict/estimate the

applied loads. Show all forces and where they act. List all assumptions that

are made.

4.  From these loads, solve for the reaction forces and/or moments. Solve for any

unknowns based on your free-body diagram.

5.  Take each individual piece (the subcomponents) from the two cases above and

carry out the following:

a. 

Draw the free-body diagram for each piece.

b. 

Using equilibrium i.e. force and moment equilibrium must be satisfied for

each component, determine the internal forces and moments i.e. forces

or/and moments transmitted between the different individual pieces.

6. 

Write a final report no more than 15 pages which consist of the following:

a. 

A description of the product and how it function

b. 

Tasks 2) to 5) above

c. 

Drawings or pictures of your actual product

d. 

A discussion/conclusion section about the product. Was it designed well?

State what you think is interesting or clever parts of the design. How

could the design be improved? What simplifying assumptions which you

make in the analysis above that may account for possible wrong answers.

How can the components be designed to avoid overloading to avoid

failure?