Engineering design, Mechanical Engineering

1) State five factors that must be considered when choosing a material. Discuss the importance to the engineer of each of these factors.

2) An engineer is planning to design a small boat: he has the choice of aluminium or steel. From the information below make an informed decision, with justifications, on which material should be used

 

Aluminium

Steel

Weight

2.65 tonnes/m3

7.86 tonnes/m3

Yield strength

275 MPa

205 MPa

UTS

310 MPa

345 MPa

corrosion

Excellent

Poor

You should comment on each of the above material characteristics for each material before making your choice.

3) When designing a product this must be systematic. Briefly discuss what stages need to be considered when designing a product from 'scratch'.

4)

a) List what factors you would need to consider for a systematic approach to  the design of a new product.

b) Comment on the properties that a operational and saleable product must have e.g a new car.

Posted Date: 3/18/2013 3:47:32 AM | Location : United States







Related Discussions:- Engineering design, Assignment Help, Ask Question on Engineering design, Get Answer, Expert's Help, Engineering design Discussions

Write discussion on Engineering design
Your posts are moderated
Related Questions
(a) Compare otto, Diesel and Dual combustion cycle on the basis of compression ratio, same compression ration and same Heat input and constant maximum pressure and heat supplied.

Example of free body diagram: The thr e e spheres A , B , C are placed in groove shown in the figure given below. The diameter of each sphere is 100mm. Sketch the free

what is the difference between intrinsic and extrinsic process?

Question: The disk 3 shown in the figure rotates at a constant angular velocity ω 3 = 2.0 rad/s. A slider in a slot in the disk causes rod 2 to rotate.  When the slider is


Q. Show Application to Gyroscope? A fiber optic Gyroscope is used to detect the mechanical rotation of the interference of light. Two beams travel along the fiver in opposite d

Time and Cost Analysis This discusses about certain basic activities that must be carried out in a factory to convert raw materials into finished products. These activities br

Evaluate an expression for minimum number of teeth on the wheel if interference is to be avoided between two mating gears. Also determine the above expression if gear ratio is equa


Charpy impact tests, when required shall comply. Impact tests shall be conducted at the minimum design metal temperature or at a lower temperature and shall meet or exceed energ