Mechanical Engineering: Ch 13: Virtual Work Applications (6 of 39) Partially Constraint Structure

In this video I will find the reactionary force on the block of a partially constrained structure with 1-attached pivot point.

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[Zeusbeer]

I love you, my statics teacher was explaining small angle approximations but I didn't realise that you can also just take the derivative of x with respect to theta and it just magically works

[kaursingh]

SIR -U R THE BEST ON EVERY TOPIC - U THE BEST ON VIRTUAL WORK -THANK U SIR

[chandankumar-sjse]

sir, you are doing noble work.please upload more video on virtual work problems.

[Step_Up]

Sir your concept and way of teaching is real very nice

[bartvrhijn]

Great video! One thing that is unclear to me is that dy = (negative) - L*sin(theta) dtheta, while it is substituted as a positive value. The final answer in this video is a positive value, which is intuitive correct. So this is odd.

[samireddioui]

Hello sir thank you for your effort but shouldnt it be a negative value ?

[ayadal-arefi]

I LOVED THAT BUT I think there was a mistake with thhe signs - and +

[swimcoach]

In canceling out L and dtheta do we have to stipulate that neither of them is equal to zero? I've noticed that most instructors are pretty fast and loose with canceling out without this stipulation. Is it really necessary to point out, for example, that L is obviously not zero and dtheta is not zero because of its nature? Kind of nitpicky, but I've always wondered this.

[kelvaabacar]

I appreciate your explanation. Thank you so much

[ferhatpolat]

dy is equal to -L times sin bla bla. SO it must be R= -F/2*tan

[vickuscala]

gracias profesor, y siga haciendo mas vídeos sobre trabajo virtual, saludos desde la paz BOLIVIA

[anthonysawaya]

hello do you have any videos about shear and moment diagrams

[SkanderTALEBHACINE]

Hello, why X0=2*L*sin(thêta) ? the structure is not symetric?! thanks

[IIM_ayushgandhi]

Why moment at the pin joint 'A' not taken into consideration?