Mechanical Efficiency Calculator

✖Actual Torque is the actual value of torque supplied to the pump.ⓘ Actual Torque [T_actual]			+10% -10%
✖Theoretical torque is the theoretical value of the torque developed by the pump.ⓘ Theoretical Torque [T_theoretical]			+10% -10%

✖Mechanical Efficiency is described as the ratio between the power input (P) minus the mechanical power loss and the power input itself.ⓘ Mechanical Efficiency [η_m]

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Formula

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Mechanical Efficiency

Formula

`"η"_{"m"} = "T"_{"actual"}/"T"_{"theoretical"}*100`

Example

`"62.5"="250N*m"/"400N*m"*100`

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Mechanical Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Mechanical Efficiency = Actual Torque/Theoretical Torque*100
η_m = T_actual/T_theoretical*100
This formula uses 3 Variables

Variables Used

Mechanical Efficiency - Mechanical Efficiency is described as the ratio between the power input (P) minus the mechanical power loss and the power input itself.
Actual Torque - (Measured in Newton Meter) - Actual Torque is the actual value of torque supplied to the pump.
Theoretical Torque - (Measured in Newton Meter) - Theoretical torque is the theoretical value of the torque developed by the pump.

STEP 1: Convert Input(s) to Base Unit

Actual Torque: 250 Newton Meter --> 250 Newton Meter No Conversion Required
Theoretical Torque: 400 Newton Meter --> 400 Newton Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_m = T_actual/T_theoretical*100 --> 250/400*100

Evaluating ... ...

η_m = 62.5

STEP 3: Convert Result to Output's Unit

62.5 --> No Conversion Required

FINAL ANSWER

62.5 <-- Mechanical Efficiency

(Calculation completed in 00.004 seconds)

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Home » Physics » Fluid Mechanics » Fluid Machinery » Hydraulic Actuators and Motors » Hydraulic Motors » Mechanical Efficiency

Credits

Created by Sagar S Kulkarni

Dayananda Sagar College of Engineering (DSCE), Bengaluru

Sagar S Kulkarni has created this Calculator and 200+ more calculators!

Verified by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

Vaibhav Malani has verified this Calculator and 200+ more calculators!

< 12 Hydraulic Motors Calculators

Theoretical Power given Volumetric Displacement

Go Theoretical Power = (2*pi*Angular Speed of Driving Member*Theoretical Volumetric Displacement*Pressure of Liquid Entering Motor)/60

Theoretical Power

Go Theoretical Power = (2*pi*Angular Speed of Driving Member*Theoretical Torque)/60

Actual Torque Delivered

Go Actual Torque = Actual Power Delivered/(2*pi*Angular Speed)

Theoretical Volumetric Displacement given Torque and Pressure

Go Theoretical Volumetric Displacement = Theoretical Torque/Pressure of Liquid Entering Motor

Pressure of Liquid Entering Motor

Go Pressure of Liquid Entering Motor = Theoretical Torque/Theoretical Volumetric Displacement

Theoretical Torque Developed

Go Theoretical Torque = Theoretical Volumetric Displacement*Pressure of Liquid Entering Motor

Overall Efficiency Percentage

Go Overall Efficiency = (Volumetric Efficiency of Motor*Mechanical Efficiency)/100

Volumetric Efficiency of Motor given Theoretical and Actual Discharge

Go Volumetric Efficiency of Motor = Theoretical Discharge/Actual Discharge*100

Theoretical Discharge for Hydraulic Motors

Go Theoretical Discharge = Theoretical Volumetric Displacement*Angular Speed

Theoretical Discharge given Volumetric Efficiency

Go Theoretical Discharge = Volumetric Efficiency/100*Actual Discharge

Actual Discharge given Volumetric Efficiency

Go Actual Discharge = Theoretical Discharge/Volumetric Efficiency*100

Mechanical Efficiency

Go Mechanical Efficiency = Actual Torque/Theoretical Torque*100

Mechanical Efficiency Formula

Mechanical Efficiency = Actual Torque/Theoretical Torque*100
η_m = T_actual/T_theoretical*100

What is maximum motor speed?

Maximum motor speed is the speed at a specific inlet pressure that the motor can sustain for a limited time without damage.

How to Calculate Mechanical Efficiency?

Mechanical Efficiency calculator uses Mechanical Efficiency = Actual Torque/Theoretical Torque*100 to calculate the Mechanical Efficiency, Mechanical efficiency is a measure of the effectiveness or efficiency with which a mechanical system or device converts input power into useful output power or work. It quantifies the ratio of the output power or work to the input power, taking into account losses and inefficiencies within the system. Mechanical Efficiency is denoted by η_m symbol.

How to calculate Mechanical Efficiency using this online calculator? To use this online calculator for Mechanical Efficiency, enter Actual Torque (T_actual) & Theoretical Torque (T_theoretical) and hit the calculate button. Here is how the Mechanical Efficiency calculation can be explained with given input values -> 62.5 = 250/400*100.

FAQ

What is Mechanical Efficiency?

Mechanical efficiency is a measure of the effectiveness or efficiency with which a mechanical system or device converts input power into useful output power or work. It quantifies the ratio of the output power or work to the input power, taking into account losses and inefficiencies within the system and is represented as η_m = T_actual/T_theoretical*100 or Mechanical Efficiency = Actual Torque/Theoretical Torque*100. Actual Torque is the actual value of torque supplied to the pump & Theoretical torque is the theoretical value of the torque developed by the pump.

How to calculate Mechanical Efficiency?

Mechanical efficiency is a measure of the effectiveness or efficiency with which a mechanical system or device converts input power into useful output power or work. It quantifies the ratio of the output power or work to the input power, taking into account losses and inefficiencies within the system is calculated using Mechanical Efficiency = Actual Torque/Theoretical Torque*100. To calculate Mechanical Efficiency, you need Actual Torque (T_actual) & Theoretical Torque (T_theoretical). With our tool, you need to enter the respective value for Actual Torque & Theoretical Torque and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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