7/24/2019 Design Calculations Velocity and Acceleration Analysis Analytic Techniques
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Velocity and Acceleration analysis
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The shock absorber mechanism on a mountain
bicycle is a four-bar linkage as shown. The frame of the bike is link 1, the fork and tire
assembly is link 3, and the connecting linkage
are links 2 and 4.
As the bicycle goes oer a bum! in the !ositionshown, the angular elocity of link 2 relatie to
the frame "2 is 2#$ %rad&s' (), and the angular
acceleration *2 is +# %rad&s2' ().
(om!ute the angular elocity and angularacceleration of link 3 for the !osition shown
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The rear motorcycle sus!ension can be analyed
as an inerted slider-crank mechanism. The frame of the motorcycle is link 1, the tire
assemble is attached to link 2 at !oint C. The shock absorber is links 3 and 4. As the
motorcycle goes oer a bum! in the !osition
shown, the angular elocity of link 2 relatie tothe frame is "2 is $ %rad&s', and the angularacceleration is *2 is 4$ %rad&s2', both in theclockwise direction.
(om!ute the angular elocity and angularacceleration of link 3 for the !osition defined by 1/0.
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