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
Angle of Repose(α): It is the maximum angle of inclined plane on which body tends to move down the plane because of its own weight. Consider the equilibrium of body when body

why are future costs not always relevant?

Petrol: Work in a well-ventilated area. Keep flames or sparks away from the work area or where petrol is stored.

Martempering: The piece to be hardened is wholly austenitized and after that quenched in a lead of salt bath held at a temperature simply above at that martensite would begin

Q. Describe the term ‘Critical Insulation thickness'. What is its significance? Derive an expression for the critical insulation radius of a spherical system. A bar of square cr

What is Floating Foundations The settlement of  foundations can be reduced if the applied load is compensated by excavation of a basement. This basement may be in the form of

The Center Mark Command We can use  Center Mark command to annotate a circle or an arc with a cross at the center.Illustration above shows a center mark added to a circle quick

Which software is worth in learning for upcoming technologies in mechanical field?

Problem s on Cantilever Truss: In the case of cantilever trusses, it is not required to determine the support reactions. The forces in members of cantilever truss are obtaine

(a) Show that all reversible engines operating between the same source and sink will have same efficiency. (b) A reversible heat engine operates between two reservoirs at temper