Motion study - free solidworks tutorials-ebooks-tips...
Transcript of Motion study - free solidworks tutorials-ebooks-tips...
Solidworks tutorial
A u t h o r : M . G h a s e m i
C o n t a c t u s : i n f o @ s o l i d w o r k s a d v i s o r . c o m
Motion study
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Here we are going to make an assembly and apply solidworks motion study on it. It’s a lot of fun.
In order to make our assembly we need some parts so first design these parts. They are easy to compose. Here I
assumed that you know the basic of solidworks 3d design and I just guide you with some pictures to know the
dimensions . ready?!
Crankshaft
Open a new sketch and begin with this circle:
Now extrude it :
Open a sketch at the end of the shaft and draw a circle again:
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Extrude it:
Create the other end of the shaft like this :
Save your crankshaft:
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Cylinder: Open a sketch and extrude this circle:
Make a shell:
Save the cylinder:
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Piston: Extrude this circle:
Open a sketch on right plane and draw the extruded rectangle:
Mirror it about the front plane:
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finish the piston design . draw a circle and extrude it like below.
Connecting rod: Create this sketch:
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Then extrude it:
Create the assembly: We want to apply motion study on this assembly so we should make the precisely mated assembly. Do it just like me and
there will be no problem. Open a new assembly design and insert the cylinder part first:
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Now bring the piston in. now it’s time to make our first mates between piston and cylinder. Mate the right plane of
piston to the right plane of the cylinder:
Now mate the outside surface of the piston to the inside surface of the cylinder:
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Remember to save your assembly at least every two minutes. Now bring the connector rod to the game and make a
concentric mate between these surfaces:
Now get the connector rod to the middle of the piston shaft by this mate:
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Only one more part left. Insert the crankshaft into the assembly and apply this mate:
Now specify the distance by this mate:
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The last mate, from “view” menu activate the temporary axis and apply this mate:
Ok, now we are ready to create our motion study. There is small tab on the lower left corner named “motion study” click
on it then you must see this:
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Click on the motor icon for defining a motor:
Specify motor characteristics just like below:
Drag the timeline to 8 sec:
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Now click on the play and enjoy the show. That’s it, you’ve done it.
If you made all the assembly mates exactly as I mentioned then the crankshaft will return making the piston go up and
down inside the cylinder. I hope you like this simple tutorial. You have just designed a very simple combustion engine
drive.
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M.Ghasemi