How do I calculate wheel radius using below data?

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skaks9
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E.motor Power KW 5
Designed HP HP 6.702412869
Required HP HP 6.093102608
Service factor 1.1
Pump rpm RPM 1500
Pressure PSI 1500
Mechanical efficiency 85%
voluertric efficency 85%
Discharge of Pump GPM 4.856333333
LPM 18.38322143
cc/rev 12.25548095
Calculated Discharge cc/rev 12.25414778
no of wheels 4
discharge supply to H.motor cc/rev 3.063536944
power at H.motor kw 23.28470703
Rpm of H.motor rpm 472.4405548
gear ratio 5
Rpm on wheel rpm 94.48811096
torque at motor Nm 470.5856515
torque at wheel Nm 2352.928258
Tractive effort N 357.2503755
Total torque Nm 2352.928258
angular velocity rad/sec 0.04217562312
Max speed kmph 1
Max speed m/s 0.2777777778
 
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  • #2
Welcome to PF.

Is this a hydraulically driven vehicle ?
Does it have normal steering or is it a skid steer vehicle ?
How many motors are used to drive the 4 wheels ?
Are the wheel motor(s) in series, or in parallel ?
How can the kW at the H-motor, be greater than the e-motor ?

Please attach a sketch of the device, and/or a hydraulic diagram.
 

1. What information do I need to calculate the wheel radius?

To calculate the wheel radius, you typically need the circumference of the wheel. If you don't have the circumference but know other dimensions, such as the diameter or the distance traveled in one rotation, you can use those to find the radius.

2. How do I calculate the wheel radius from the circumference?

The radius (r) of a wheel can be calculated from the circumference (C) using the formula r = C / (2 * π), where π (pi) is approximately 3.14159. Measure the circumference carefully and plug it into the formula to find the radius.

3. Can I calculate the radius if I only know the diameter of the wheel?

Yes, if you know the diameter of the wheel, you can easily calculate the radius. The radius is simply half of the diameter. So, if the diameter (d) is known, the radius (r) can be calculated as r = d / 2.

4. How do I calculate the wheel radius if I know the distance traveled in one rotation?

If you know the distance a wheel travels in one complete rotation, this distance is the circumference of the wheel. You can use the circumference to calculate the radius using the formula r = C / (2 * π), where C is the circumference.

5. What tools do I need to measure the wheel circumference accurately?

To measure the wheel circumference accurately, you can use a flexible measuring tape. Wrap it around the outer edge of the wheel once to get the circumference. Ensure the tape is straight and tight for an accurate measurement. Alternatively, you can mark a starting point on the ground, roll the wheel one complete rotation, and then measure the distance between the start and end points.

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