Cars- engine power and transmission - 3D animation

2015-11-25 7

This video offers Associate in Nursing uncommon perspective to the relation between engine power, rev and acceleration.

Some comments:

1) torsion - a gear of radius R that exerts force F is alleged to possess a torsion of T=R*F. Engines don't manufacture force as such, but torque. therefore if the engine produces a torsion of T, which is transmitted unchanged to a gear of radius R, you a get a force of T/R.
The video offers an alternate read, wherever the relation between rev, power and accelartion is explained while not torques.

2) potency - this video assumes and ideal world with 100 percent potency. No energy is wasted on friction or the other mechanical losses.

3) Another simplifying assumption is that the engine produces a continuing torsion, and so a continuing force. As mentioned in one in all the comments within the finish, this is often not the case with real engines. In most engines the torsion rises as rev rises, peaks at some rev, then starts to fall. attributable to that the facility doesn't steady increase with rev. It will increase within the starting, and continues to extend a bit bit once the torsion peaks. Then because the torsion starts to dimish considerably, the facility reduces likewise.

4) Measurments - here ar the measurments employed in the simulation:
16 teeth gear radius: 18cm = zero.6 ft
Force exerted by this gear: 196N = forty four.1 lb
Car wheel radius: 21cm=0.7 ft
Car weight: 352kg = 775 avoirdupois unit

5) The automobile wheels ar slightly larger than the 16-teeth gear, and this is often adds up to the gear quantitative relation impact. within the initial automobile, for instance, whereas the transmission box encompasses a gear quantitative relation of 1:1, the larger wheels cause Associate in Nursing overall gear quantitative relation of one.18:1. this could be seen at time 2:25, wherever the wheel's power visualisation is slightly elongated (a bit a lot of speed and to a small degree less force).