Gear & dyno question
Pro
Joined: Oct 2004
Posts: 546
Likes: 1
From: CA
Originally Posted by MitchAlsup
Let me at lest say, you are very precise about what you don't know....
observation but I've always found knowing what you don't
know to be not as common as one would think but
always more effective than the converse!
Originally Posted by mlongo99
I think you mean that the rate of angular acceleration changes not the MOI. After all MOI is the sum of the rotating masses multiplied by the square of the distance it acts from the axis. Unless you've got gear teeth flying off as it rotates that value is a constant. But you're definately right. This is a conservation of energy problem differentiated over time. Energy, or work, measured in joules, doesn't change. Flywheel - drivetrain = wheels
Thus, torque measurements shouldn't vary. But the question is power, which is work differentiated over time. This is Joules/second aka Watts, or with a conversion factor Hp to us Americans. Flywheel power is constant, drivetrain losses increase, and less power gets to the wheels.
Wow... I feel like I'm back in college again
Thus, torque measurements shouldn't vary. But the question is power, which is work differentiated over time. This is Joules/second aka Watts, or with a conversion factor Hp to us Americans. Flywheel power is constant, drivetrain losses increase, and less power gets to the wheels.
Wow... I feel like I'm back in college again
extremely clear and very useful. Thanks!
Pat
Le Mans Master
Joined: Aug 2000
Posts: 5,529
Likes: 1,943
From: Austin Texas
Originally Posted by catpat8000
Not sure if that's a backhanded compliment or just an observation but I've always found knowing what you don't know to be not as common as one would think but always more effective than the converse!
