I am trying to do some preliminary calculations for a basic lifting device but some of my numbers seem to be out-of-wack. Could some kind soul take a look if you have a minute spare?
Motor Data (max efficiency)
RPM: 8311 = 870 radians/sec
Torque: 9.213N-cm = 0.09213N-m
Output Power = 870...
I have calculated up to 8000 rpm using the same math as above, and noticed the same problem I've had all along.
1000rpm = 28.62hp
2000rpm = 57.24
3000rpm = 85.87
4000rpm = 114.49
5000rpm = 143.12
6000rpm = 171.74
7000rpm = 200.36
8000rpm = 228.99
I know that in reallife this vehicle...
Pervect - that is basically what I have been trying to do, but I always get the wrong results. I ignored the drag factor, but my understand is that I will get a lower energy and lower power value (which is fine for now) but I always seems to get a higher value than expected.
at 1 sec, the car...
Thanks berkeman - I have searched the forum and read that post before but unfortunately it did help me. I managed to plot wind resistance on a graph to see its effect, which was wonderful - but I'm still not sure how I would include the figures into a horsepower calculation.
Linear RPM vs Time = ?? Horsepower
I have graphed some sampled data taken from a car on a level road, traveling its rpm range (from 2000rpm -> 8000rpm) under full acceleration, and the graph shows an almost linear change in rpm over time.
For the sake of example, let us assume RPM = time...
The question is:
Plot a graph showing horsepower at given time intervals based on sampled data.There are actually 10 samples, but I have only included 3 for simplicity. The original data only included Time, Kilometers/Hour and RPM (although I don't think RPM is needed for this part of the...
Apologies in advance if this is not the correct forum.
This is (what seems to me) an old question people have been playing with for a while, but I don't seem to be able to figure out where I have gone wrong.
Could someone point out the mistake in my math from the following example...