Formula for conversion of velocity(m/s) to rpm?
Multiply the number of rpm by 3.14. For example, if a motor spins at 140 rpm, multiply 140 by 3.14 to get 439.6. Multiply the Step 2 result by the diameter of the circle to find the linear speed per minute. Completing the example, multiply 439.6 by 1.3 feet to get a linear speed of 571.48 feet per minute.
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Formula for conversion of velocity(m/s) to rpm?
Conversion of Velocity (m/s) to RPM
To convert velocity from meters per second (m/s) to revolutions per minute (RPM), a specific formula can be used. This conversion is commonly required when dealing with rotational motion or machinery that operates at a certain RPM.
Formula
The formula for converting velocity from m/s to RPM is as follows:
RPM = (60 * v) / (2πr)
Where:
- RPM represents the revolutions per minute
- v is the velocity in meters per second
- π (pi) is a mathematical constant approximately equal to 3.14159
- r is the radius or distance from the center of rotation to the point of interest
Explanation
Let's break down the formula and understand its components:
1. Conversion factor:
- Since RPM represents revolutions per minute, it is necessary to convert the velocity from m/s to a distance covered in one minute. To achieve this conversion, we multiply the velocity by 60, as there are 60 seconds in a minute.
2. Circumference calculation:
- To convert the distance covered in one minute to revolutions, we need to determine the circumference of the circular path. The formula for the circumference of a circle is given by C = 2πr, where C is the circumference and r is the radius.
- The value of 2π (2 times pi) represents the ratio of the circumference to the diameter of a circle.
3. Radius consideration:
- The radius (r) represents the distance from the center of rotation to the point of interest. It is crucial to use the appropriate radius value for accurate conversion. If the given velocity is at a specific distance from the center, that value should be used as the radius in the formula.
4. Final calculation:
- By dividing the distance covered in one minute (60 * v) by the circumference (2πr), we obtain the number of revolutions per minute (RPM).
Example:
Let's say we have a velocity of 10 m/s and a radius of 0.5 meters. We can use the formula to calculate the corresponding RPM:
RPM = (60 * 10) / (2π * 0.5)
= 600 / (3.14 * 0.5)
≈ 382.17 RPM
Note:
- Ensure that the units are consistent throughout the calculation (e.g., meters for velocity and meters for radius).
- It is important to note that this formula assumes constant velocity and a circular path of motion. For more complex scenarios or non-uniform motion, additional considerations may be required.