Find the maximum frequency for which the block and piston will be in contact

T = 1/f.In summary, the conversation discusses a block on a piston that is moving vertically with simple harmonic motion. It is asked at what amplitude of motion the block and piston will separate if the period of the piston's motion is 1.18 seconds. It is also asked for the maximum frequency for which the block and piston will be in contact continuously if the piston has an amplitude of 5.12 cm in its motion. The answer to both questions involves finding the acceleration of the piston, which must equal the force of gravity for the block and piston to separate. The maximum frequency for the block and piston to remain in contact can be found by working backwards from this value.
  • #1
radtad
19
0
A block is on a piston that is moving vertically with simple harmonic motion. a)At what amplitude of motion will the block and piston sperate if the period of the piston's motion is 1.18 seconds? b) If the piston has an amplitude of 5.12 cm in its motion, find the maximum frequency for which the block and piston will be in contact continuously.
 
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  • #2
radtad said:
A block is on a piston that is moving vertically with simple harmonic motion. a)At what amplitude of motion will the block and piston sperate if the period of the piston's motion is 1.18 seconds? b) If the piston has an amplitude of 5.12 cm in its motion, find the maximum frequency for which the block and piston will be in contact continuously.

a) The block and piston will separate when the force of the piston(assuming it is constant) equals the Force of gravity. So you know the acceleration of the piston must be 'g'... I assume the amplitude of the motion is the distance traveled in 1/4 of the period.

b)Although I said the acceleration must be 'g' to seperate, we can also use it for the max frequency for the block and piston to remain in contact. Basically just work backward except frequency = 1/T
 
  • #3


a) The block and piston will separate when the amplitude of the piston's motion is equal to the height of the block. Therefore, the amplitude of the piston's motion at which the block and piston will separate is 1.18 seconds.

b) The maximum frequency for which the block and piston will be in contact continuously can be found by using the formula for simple harmonic motion: f = 1/T, where T is the period of motion. Since we know that the period of the piston's motion is 1.18 seconds, the maximum frequency can be calculated as f = 1/1.18 = 0.8475 Hz. Therefore, the maximum frequency for which the block and piston will be in contact continuously is 0.8475 Hz.
 

1. What is the purpose of finding the maximum frequency for which the block and piston will be in contact?

The purpose of finding the maximum frequency is to determine the limit at which the block and piston can remain in contact without any separation or loss of contact. This can help in designing efficient engines or machinery that require smooth and continuous motion.

2. How is the maximum frequency calculated?

The maximum frequency can be calculated by dividing the speed of the piston by the distance it travels in one cycle. This will give the frequency at which the piston moves up and down. Then, the maximum frequency is determined by considering the properties of the block and piston, such as their material and surface area, to determine the limit at which contact can be maintained.

3. What factors affect the maximum frequency for which the block and piston will be in contact?

The maximum frequency is affected by various factors such as the material and surface properties of the block and piston, the speed at which the piston moves, and the forces acting on the block and piston. Additionally, external factors such as temperature and lubrication can also impact the maximum frequency.

4. Why is it important to find the maximum frequency for contact between the block and piston?

It is important to find the maximum frequency as it helps in determining the operational limits of the block and piston system. This information is crucial in ensuring the efficiency and durability of the system, as operating at frequencies beyond the maximum limit can lead to wear and tear, and potentially cause damage or failure.

5. Can the maximum frequency for contact between the block and piston be increased?

Yes, the maximum frequency can be increased by optimizing the design and properties of the block and piston, as well as implementing measures such as lubrication and reducing friction. However, there will always be a limit at which the block and piston can maintain contact, and exceeding this limit can result in damage to the system.

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