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Hi, I tried finding the torque for the motor, just want to make sure if this makes sense. The wheel is being pushed to the drum with a force, the drum is 3-4 times bigger in diameter compared to the wheel. I did T= F*perpendicular distance. I am using the radius of the drum, because the wheel...

There is a groove between the square and the shaft as a means for transition to smaller diameter. You are correct, this groove will be my high stress area. You are correct, I am after the failure of the system because of the groove. Do I just need to do Torsion calculation? how can I do that...

@dvd Thank you for your feedback. I think DIN EN 12532 is the closest standard. Only think different is the brake addition to generate tractive force. Only the drum is driven which drives the wheel, I need the brake applied to the wheel to generate a tractive force. I will be working with this I...

@dvd Yes, I searched for it, but I couldn't find anything about brakes. did you say Vfd or vid? on a drive motor? I am not sure if I understood. Are you implying that a brake can be used in conjunction with the drive motor? I am powering the drum with the motor which turns the wheels.

It's for testing wheels of different sizes, tested on a rotating drum (WHEEL ENDURANCE TESTING). To find the slippage in the x direction where the wheel contacts the drum

It is a result of smaller diameter.

Hi All, A quick question about Brakes, if I need to use one brake for different size wheels. Is it feasible? If yes, if anyone can guide me in the right direction, I would really appreciate it. Thank you.

Hi All, I have to size a motor for a rotary device (a drum). The drum has a normal force applied to it. What would be the best way to size a motor for such a system? Thank you.

Hi desertfox, Thank you for your reply. It's all one piece, it has a groove and fillets that look like welds.

Hi All, I have a quick question regarding rubber testing. Is it correct to compare Tear strength tests from ISO and ASTM between ISO 34-1 Method A and ASTMD624 Die C? Are they the same? Thank you :)

Hi All, I have a shaft attached with this thread. I have couple questions: 1) What would be the best way to control the central axis of the shaft given I have a square end on one side. 2) How to calculate torsion for such a shaft? 3) It's a power transmitting shaft, what would be a good setup...

Hi All, I am working on a project similar to this (https://www.youtube.com/watch?v=Iuya2buTQKE). My question is how we can size a motor for such a system. If my wheel is pushing on the drum with a vertical force, what would be the best way to record the horizontal force (Slippage) on the wheel...