Practice Coincident Points In Mechanisms (5) - Kinematic Analysis of Simple Mechanisms

Practice: Coincident Points in Mechanisms

Lesson 5Kinematic Analysis of Simple Mechanisms

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8 questions

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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a coincident point?
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Think about where two parts of a mechanism meet.
Question 2.
What is the equation for the velocity at a coincident point?
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Remember it involves point A and point B.
3Question 3.
What is the equation for calculating the velocity of a point A at a coincident point?
- v_A = v_B + v_{A/B}
- v_A = v_B - v_{A/B}
- v_A = v_B × v_{A/B}
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Focus on how A relates to B and its own relative velocity.
4Question 4.
True or False: The Coriolis component is irrelevant in the analysis of coincident points.
- True
- False
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Consider systems where parts rotate.
Question 5.
You have a mechanical arm where point O is a coincident point between two links. If link 1 rotates with an angular velocity of 30 degrees per second clockwise and link 2 is sliding past it at a constant speed of 2 m/s, calculate the velocity of point O.
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Pay attention to the direction and consider both linear and angular speeds.
Question 6.
In a slider-crank mechanism, the crank rotates at ω = 60 rad/s and the radius is r = 0.4 m. What is the relative acceleration experienced by a point on the slider when the crank is at its horizontal position? Include the Coriolis component in your calculations.
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Break down the components of each acceleration; it's essential.

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