Example of support reaction:

A fixed crane of 1000Kg mass is to lift 2400Kg crates. It is held in place by pin at point A and a rocker at point B. the C.G. is located at G. Determine components of reaction at point  A and B after drawing free body diagram.

 

Sol.: Since the two reaction (Vertical and Horizontal) at pin support that is, RAH and RAV. And at rocker there will be only one Horizontal reaction that is,R_BH  .

First draw FBD of the Jib crane as shown in the given figure. The whole system is in equilibrium. Take moment about the point A

∑M_A = - R_BV  × 1.5 + 1000 × 2 + 2400 × 6 = 0

R_BH = 10933.3Kg                                      .......ANS

∑H = 0

R_AH  + R_BH = 0

That is,                  R_AH = - R_BH

R_AH = -10933.3Kg                                   .......ANS

∑V = 0

R_AV  - 1000 - 2400 = 0

R_AV = 3400Kg                                            .......ANS

Posted Date: 10/17/2012 4:28:34 AM | Location : United States

Ask an Expert

Related Discussions:- Example of support reaction, Assignment Help, Ask Question on Example of support reaction, Get Answer, Expert's Help, Example of support reaction Discussions

Write discussion on Example of support reaction
Your posts are moderated

Write your message here..

Related Questions

CIM, WHAT IS PARITY CHECK ? WHAT IS PARITY CHECK ?

Mechanics, what is cone friction? what is cone friction?

Kinetic or dynamic friction, Kineti c (Dynamic) Friction: When appli... Kineti c (Dynamic) Friction: When applied force exceeds limiting friction the body starts moving over the other body and the friction of resistance experienced by the body a

Benefits of registration in entrepreneurship development, Benefits of Regis... Benefits of Registration: Units would normally get registered to avail some benefits, incentives or support given either by the Central or State Govt. The regime of incentives off

Fuse-fundamentals of electricity , Fuse :  Fuse wire is made of soft ... Fuse :  Fuse wire is made of soft metal and housed in a glass tube. It is connected in circuit. It protects the electrical accessories, which may be damaged by the overflow o

Ladder slip, ladder slip: A uniform ladder having length of 7m rests ... ladder slip: A uniform ladder having length of 7m rests against vertical wall with which it makes an angle of 45º, coefficient of friction between ladder and wall is 0.4 and

Up milling and down milling, table representing the differences between up ... table representing the differences between up milling and down milling

Find out tension in the rop, Find out tension in the rop: Two blocks A... Find out tension in the rop: Two blocks A and B are associated as shown in Figure (a). Mass of block A is 15 kg and this is resting on a surface having a coefficient of fricti

Dieasal engine, way am making a dieasal engine way am making a dieasal engine

Expression for the maximum shearing stress, Expression for the maximum shea... Expression for the maximum shearing stress: Obtain expression for the maximum shearing stress and maximum shearing planes. Sol.: The condition for maximum shearing stress i