Efficiency of Screw Jack when only Screw Friction is Considered Solution

STEP 0: Pre-Calculation Summary
Formula Used
Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction)
η = tan(ψ)/tan(ψ+Φ)
This formula uses 1 Functions, 3 Variables
Functions Used
tan - The tangent of an angle is a trigonometric ratio of the length of the side opposite an angle to the length of the side adjacent to an angle in a right triangle., tan(Angle)
Variables Used
Efficiency - The Efficiency of an electric motor is defined as the ratio of usable shaft power to electric input power.
Helix Angle - (Measured in Radian) - Helix Angle is the angle between any helix and an axial line on its right, circular cylinder, or cone.
Limiting Angle of Friction - (Measured in Radian) - The Limiting Angle of Friction is defined as the angle which the resultant reaction (R) makes with the normal reaction (RN).
STEP 1: Convert Input(s) to Base Unit
Helix Angle: 25 Degree --> 0.4363323129985 Radian (Check conversion ​here)
Limiting Angle of Friction: 12.5 Degree --> 0.21816615649925 Radian (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
η = tan(ψ)/tan(ψ+Φ) --> tan(0.4363323129985)/tan(0.4363323129985+0.21816615649925)
Evaluating ... ...
η = 0.607703971657782
STEP 3: Convert Result to Output's Unit
0.607703971657782 --> No Conversion Required
FINAL ANSWER
0.607703971657782 0.607704 <-- Efficiency
(Calculation completed in 00.004 seconds)

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National Institute Of Technology (NIT), Hamirpur
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Screw Jack Calculators

Efficiency of Screw Jack when Screw Friction as well as Collar Friction Considered
​ LaTeX ​ Go Efficiency = (Weight*tan(Helix Angle)*Mean Diameter of Screw)/(Load*tan(Helix Angle+Limiting Angle of Friction)*Mean Diameter of Screw+Coefficient of Friction For Collar*Load*Mean Radius of Collar)
Force Required to Lower Load by Screw Jack given Weight of Load
​ LaTeX ​ Go Force Required = Load*(Coefficient of Friction*cos(Helix Angle)-sin(Helix Angle))/(cos(Helix Angle)+Coefficient of Friction*sin(Helix Angle))
Efficiency of Screw Jack when only Screw Friction is Considered
​ LaTeX ​ Go Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction)
Force Required to Lower Load by Screw Jack given weight of load and Limiting angle
​ LaTeX ​ Go Force Required = Load*tan(Limiting Angle of Friction-Helix Angle)

Efficiency of Screw Jack when only Screw Friction is Considered Formula

​LaTeX ​Go
Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction)
η = tan(ψ)/tan(ψ+Φ)

What does efficiency mean?

Efficiency requires reducing the number of unnecessary resources used to produce a given output including personal time and energy. It is a measurable concept that can be determined using the ratio of useful output to total input.

How to Calculate Efficiency of Screw Jack when only Screw Friction is Considered?

Efficiency of Screw Jack when only Screw Friction is Considered calculator uses Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction) to calculate the Efficiency, The efficiency of screw jack when only screw friction is considered is a measurable concept that can be determined using the ratio of useful output to total input. Efficiency is denoted by η symbol.

How to calculate Efficiency of Screw Jack when only Screw Friction is Considered using this online calculator? To use this online calculator for Efficiency of Screw Jack when only Screw Friction is Considered, enter Helix Angle (ψ) & Limiting Angle of Friction (Φ) and hit the calculate button. Here is how the Efficiency of Screw Jack when only Screw Friction is Considered calculation can be explained with given input values -> 0.607704 = tan(0.4363323129985)/tan(0.4363323129985+0.21816615649925).

FAQ

What is Efficiency of Screw Jack when only Screw Friction is Considered?
The efficiency of screw jack when only screw friction is considered is a measurable concept that can be determined using the ratio of useful output to total input and is represented as η = tan(ψ)/tan(ψ+Φ) or Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction). Helix Angle is the angle between any helix and an axial line on its right, circular cylinder, or cone & The Limiting Angle of Friction is defined as the angle which the resultant reaction (R) makes with the normal reaction (RN).
How to calculate Efficiency of Screw Jack when only Screw Friction is Considered?
The efficiency of screw jack when only screw friction is considered is a measurable concept that can be determined using the ratio of useful output to total input is calculated using Efficiency = tan(Helix Angle)/tan(Helix Angle+Limiting Angle of Friction). To calculate Efficiency of Screw Jack when only Screw Friction is Considered, you need Helix Angle (ψ) & Limiting Angle of Friction (Φ). With our tool, you need to enter the respective value for Helix Angle & Limiting Angle of Friction and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Efficiency?
In this formula, Efficiency uses Helix Angle & Limiting Angle of Friction. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Efficiency = (Weight*tan(Helix Angle)*Mean Diameter of Screw)/(Load*tan(Helix Angle+Limiting Angle of Friction)*Mean Diameter of Screw+Coefficient of Friction For Collar*Load*Mean Radius of Collar)
  • Efficiency = (1-sin(Limiting Angle of Friction))/(1+sin(Limiting Angle of Friction))
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