Quick Answer
Calculate Bridge Travel Motor Power per FEM 9.751 & ISO 4301-1
Calculator
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Find Engineering Solutions →Result Interpretation
Bridge Travel Motor Power per FEM 9.751 & ISO 4301-1 calculator computes Required motor power in W using the defined engineering formula and the input values provided. Required motor power is expressed in W. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Total rolling friction force = 1200
- Inertial resistance force during acceleration = 850
- Wind load resistance force = 320
- Bridge travel speed = 0.5
- Motor efficiency = 0.85
Expected Result:
- Required motor power = 1394.1176470588
Engineering Interpretation:
Under the given input conditions, the calculated result is: Required motor power = 1394.1176470588 W.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
required motor power = (total rolling friction force + inertial resistance force during acceleration + wind load resistance force) * bridge travel speed / motor efficiencyFormula family: formula_lifting_bridge_travel_motor_power_calculator_fem_9751_iso_4301_
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| F_friction | Total rolling friction force | INPUT | Total rolling friction force |
| F_inertia | Inertial resistance force during acceleration | INPUT | Inertial resistance force during acceleration |
| F_wind | Wind load resistance force | INPUT | Wind load resistance force |
| v_bridge | Bridge travel speed | INPUT | Bridge travel speed |
| eta_motor | Motor efficiency | INPUT | Motor efficiency |
| motor_power | Required motor power | OUTPUT | Required motor power |
Calculation Steps
- Enter the total rolling friction force in N.
- Enter the inertial resistance force during acceleration in N.
- Enter the wind load resistance force in N.
- Enter the bridge travel speed in m/s.
- Enter the motor efficiency in 1.
- Step 1: Compute required motor power.
- Read the required motor power (W) from the results.
Engineering Summary
Calculate Bridge Travel Motor Power per FEM 9.751 & ISO 4301-1
Frequently Asked Questions
What does this calculator calculate?
The Bridge Travel Motor Power per FEM 9.751 & ISO 4301-1 calculator estimates Required motor power based on the input parameters you provide
Why is total rolling friction force important in this calculation?
total rolling friction force is directly proportional to required motor power. When you enter total rolling friction force in N, the calculator uses it in the engineering formula to compute the output
How should I interpret the result required motor power?
The calculator outputs required motor power in W. For larger power values, divide by 1000 to express the result in kW, or by 745.7 for horsepower. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Total rolling friction force (N), Inertial resistance force during acceleration (N), Wind load resistance force (N), Bridge travel speed (m/s). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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