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Engineering
Mechanical Engineering
Equation for the angular position of a slider crank mechanism
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[QUOTE="Mech_LS24, post: 6524145, member: 690885"] I have made the drawings on scale (with 4 different positions) and written the calculation for [B]Lac[/B] as well. I ended up with the same equation as you for the length of [B]Lac[/B], so I do understand it. But I am issuing two problems now: [LIST=1] [*]With the law of sines I end up with two solutions, where 99.7 degrees should be the right outcome. The only way I could find that angle is by first calculation the angle of γ and use the summation towards the 180 degrees. [*]An equation for the angle between [B]Vb[/B] and [B]Vb'[/B] is still hard to determine. As I have the issue that using 90 degrees as reference would result in minus values (see situation 2, on the page with the main sketches upper right). [/LIST] Hopefully you get the message, I tried my best for the sketches and approaches towards the equations/calculations. [I]*Afterwards, I will look at the differential equation. I have some documentation about it now, so going to read that :) [ATTACH type="full"]287102[/ATTACH] [ATTACH type="full"]287103[/ATTACH][/I] [/QUOTE]
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Engineering
Mechanical Engineering
Equation for the angular position of a slider crank mechanism
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