Four bar mechanism

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tamer_heshmat
Posts: 1
Joined: 28 Nov 2016, 09:43

Four bar mechanism

Post by tamer_heshmat »

Hello
I created a model of the four bar mechanism using three rods.
https://drive.google.com/file/d/0B7cz41 ... 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.
https://drive.google.com/file/d/0B7cz41 ... sp=sharing

however for unclear reasons the motion does not obey the theoretical expectation.
https://drive.google.com/file/d/0B7cz41 ... sp=sharing

I will be grateful for any clarification for the reason.

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

coppelia
Site Admin
Posts: 10339
Joined: 14 Dec 2012, 00:25

Re: Four bar mechanism

Post by coppelia »

Hello Tamer,

please have a look at this four bar linkage example.

Cheers

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