B Torsion, helicity of drive shaft, direction of energy-flow.

  • Thread starter Spinnor
  • Start date

Spinnor

Gold Member
2,066
263
The drive shaft of a truck undergoing acceleration twists a small amount. That twist defines a helicity. If you just know the rotation of a drive shaft you can not tell which way power flows but if given rotation and the twist of the shaft that can determine the direction of power flow?

Thanks!
 

A.T.

Science Advisor
9,459
1,426
The drive shaft of a truck undergoing acceleration twists a small amount. That twist defines a helicity. If you just know the rotation of a drive shaft you can not tell which way power flows but if given rotation and the twist of the shaft that can determine the direction of power flow?
Yes.
 

Spinnor

Gold Member
2,066
263
That is cool.

Energy can flow in both directions of a trucks drive shaft but energy normally flows towards the wheels but when a truck uses its air-brakes (edit, or just lets off the gas) to slow down energy flows towards the engine?

Edit, to recover energy from a car or truck energy must flow the other direction.

Thanks!
 

Want to reply to this thread?

"Torsion, helicity of drive shaft, direction of energy-flow." You must log in or register to reply here.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Hot Threads

Top