Computational mechanics in design, Mechanical Engineering

Figure shows an impression of one of many lifting arrangements produced and used at a steel fabrication workshop. It was manufactured to lift a maximum of 50 kg and due to a product line change, it needs to be modified to lift a maximum mass of 100 kg.  Furthermore, the lifting mechanism at the loading point needs to be changed to a motor-driven winch which weighs 26kg. This motor driven win ch can accelerate a loads of 100 kg  to 0.8 m/s2 in 1 second.  Due to these changes, the factory manager needs to know whether the present lifting cranes  can be modified as quickly as possible using only the left over pipes that had been purchased to manufacture thethe original lifting cranes.  Your task is to provide the manager with a suitable proposal.

The required design constraints are as follows:

Function of the existing cranes:

A loading block is attached as shown to Pipe 3.  The load will be raised from the floor level to a height of 1.5 metres.  Do not consider the geometry of the load at this stage.  Pipe 2 is not attached to the base plate and free to rotate inside Pipe 1. Do not consider the plate attachment to the floor, assume pipe 3 is welded to a perfectly rigid plate.  Pipe 3 is rigidly connected to Pipe 2 by means of welding etc.

Available materials for modifications:

Materials: A few lengths of each of Pipe1, Pipe 2 and Pipe 3.  (All pipes are steel with Ultimate Strength is 320 MPa, Yield Strength 280 MPa, Shear Strength 248 MPa, E= 200 GPa, Poisson's ratio =0.3, Density 7880 kg/m3)

Posted Date: 4/1/2013 3:05:10 AM | Location : United States

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

Write discussion on Computational mechanics in design
Your posts are moderated
Related Questions
Q. Explain Sand and moulding sands? Sand according to the amount of clayey matter they contain, the moulding sands are classified as: • Silica sand: Up to 20% clay. •

Aluminium Cast Alloys: Aluminium alloys the cast through any one of the given processes. Sand Casting is the easiest and most versatile process minute castings, complex ca

I need a formula to calculate the offset that would give me

Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the famous equation for the loss of heat in a cylindrical pipe is derived. Explain th

determine the vertical deflection at end A neglecting shear

the effect of slip of belt on the pulleys on the velocity ratio of belt drive?

How does the maximum the 10'''' flange horizontal offset allowable.

some suitable examples

analytical method for determining the acceleration and velocity?