Enter the actual output force (N), the effort force (N), and the mechanical advantage into the calculator to determine the Lever Efficiency.
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Lever Efficiency Formula
The following formula is used to calculate the Lever Efficiency.
Elever = OF / (EF * MA) * 100
- Where Elever is the Lever Efficiency (%)
- OF is the actual output force (N)
- EF is the effort force (N)
- MA is the mechanical advantage
How to Calculate Lever Efficiency?
The following example problems outline how to calculate the Lever Efficiency.
Example Problem #1
- First, determine the actual output force (N). In this example, the actual output force (N) is given as 50 .
- Next, determine the effort force (N). For this problem, the effort force (N) is given as 25 .
- Next, determine the mechanical advantage. In this case, the mechanical advantage is found to be 3.5.
- Finally, calculate the Lever Efficiency using the formula above:
Elever = OF / (EF * MA) * 100
Inserting the values from above and solving yields:
Elever = 50 / (25*3.5) * 100 = 57.14 (%)
Example Problem #2
Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:
actual output force (N) = 60
effort force (N) = 13
mechanical advantage = 5
Entering these given values yields:
Elever = 60 / (13 * 5) * 100 = 92.307 (%)
