Four bar mechanism

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Joined: 28 Nov 2016, 09:43

Four bar mechanism

Post by tamer_heshmat » 28 Nov 2016, 19:23

I created a model of the four bar mechanism using three rods. ... sp=sharing

The mechanism should always move as a parallelogram. Link 1 and link 3 should be always parallel. Link 2 should be always horizontal. ... sp=sharing

however for unclear reasons the motion does not obey the theoretical expectation. ... sp=sharing

I will be grateful for any clarification for the reason.

Tamer HMA Kasem (Ph.D.)
Cairo University
Faculty of Engineering

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Re: Four bar mechanism

Post by coppelia » 29 Nov 2016, 09:06

Hello Tamer,

please have a look at this four bar linkage example.


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