Steps for method of joint, Mechanical Engineering

Steps for Method of Joint:

To find force in member of the truss by this method, the three Steps which are given below are followed.

Step-1: Calculate reaction at support.

Step-2: Make direction of force in the entire member; you make the entire member as tensile. If on solving problems, any value of force comes to negative this means the assumed direction is wrong, and that the force is compressive.

Step-3: Select a joint where two members are unknown to us.

1- First select that joint on which the three or less than three forces are acting. Then apply lami's theorem on that particular joint.

Step-4: Draw FBD of selected joint as whole truss is in equilibrium thus the selected joint will be in equilibrium and it should satisfy equilibrium conditions of coplanar concurrent force system.

V = 0 and ∑H = 0

Step-5: Now select the joint on which the 4 forces, 5 forces etc are acting. On that joint apply the resolution of forces method.

Note:  If three forces act at joint and 2 of them are along the same straight line, then for the equilibrium of joint, the 3rd force should be equal to zero.

 

Posted Date: 10/20/2012 2:24:58 AM | Location : United States







Related Discussions:- Steps for method of joint, Assignment Help, Ask Question on Steps for method of joint, Get Answer, Expert's Help, Steps for method of joint Discussions

Write discussion on Steps for method of joint
Your posts are moderated
Related Questions
constructing and working of he- ne laser

Cylinder Head: It is fitted at top of the cylinder block. It provides space for the arrangement of spark plug, combustion chamber, camshaft, cam chain, valves and intake and exha

a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B

Difference between path function and point function

help write the matlab code desired: The sine function can be evaluated by the following infinite series as (where the angle x is given in radians): xsinx = x-(x^3)/3! + (x^5)/5! -

Use roller support - steel trusses of bridges: Explain, why do we use roller support in case of steel trusses of bridges? Sol. : In the bridges most of time external f

List and explain four different types of layouts for a factory.


SUBMERGED ARC WELDING The optimum performance of welded vessels and structures in service have led to the full exploitation of automatic welding processes. This arc welding is on

Describe the following key terms: (i) Stream Line (ii) Path Line (iii) Streak Line (iv) Stream Function (v) Potential flow function (vi) Flow net