How to Calculate Peak Net Horsepower from Vehicle Weight and G-force?

AI Thread Summary
To calculate peak net horsepower from vehicle weight and G-force, one can use the formula for power, which is force times distance over time. By applying the equation F=ma, where 'm' is the mass of the vehicle and 'a' is the acceleration derived from G-force, the force can be determined. Once the force is known, it can be multiplied by the speed at the time of measurement to find the power output. This method allows for the estimation of net horsepower, which can then be adjusted for frictional losses to ensure compliance with the legal limit of 5 bhp for a Motor Driven Cycle. Understanding these calculations is essential for accurate performance assessments.
<3.7kw
Messages
1
Reaction score
0
If I know the vehicle weight in pounds and I know peak G-force.
Can I find peak net horsepower? If yes, how would I do it?

I have an accelerometer on my “Motor Driven Cycle” and I have weighed myself and the cycle. To keep the cycle legally a Motor Driven Cycle it must be under 5 bhp. If I can get net hp I can account for the other relevant frictional losses to estimate bhp.

Thank you for any help you might give.
<3.7kw
 
Last edited:
Engineering news on Phys.org
Welcome to PF.

Power is force times distance/time, so if you use f=ma with the accelerator data you can find force, then you plug-in speed at the time of the measurement.
 

Thread 'HP Required to move a robot 10meters at 1.5m/sec'

I need some assistance with calculating hp requirements for moving a load. - The 4000lb load is resting on ball bearing rails so friction is effectively zero and will be covered by my added power contingencies. Load: 4000lbs Distance to travel: 10 meters. Time to Travel: 7.5 seconds Need to accelerate the load from a stop to a nominal speed then decelerate coming to a stop. My power delivery method will be a gearmotor driving a gear rack. - I suspect the pinion gear to be about 3-4in in...
View full post »

Thread 'Bubble formation in 4 mm gap vessel'

How did you find PF?: Via Google search Hi, I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere. The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary The bubble is formed at the tip...
View full post »
Thread 'Calculate minimum RPM to self-balance a CMG on two legs'

Thread 'Calculate minimum RPM to self-balance a CMG on two legs'

Here is a photo of a rough drawing of my apparatus that I have built many times and works. I would like to have a formula to give me the RPM necessary for the gyroscope to balance itself on the two legs (screws). I asked Claude to give me a formula and it gave me the following: Let me calculate the required RPM foreffective stabilization. I'll use the principles of gyroscopicprecession and the moment of inertia. First, let's calculate the keyparameters: 1. Moment of inertia of...
View full post »

Similar threads

New Definition derivative for Horsepower
Replies
32
Views
5K
Automotive Does vehicle weight have an effect on torque capacity of the gearbox?
Replies
5
Views
4K
Automotive Need help calculating load torque and acceleration torque of a vehicle
Replies
8
Views
6K
Battery Powered Electric Motor and Charging Requirements
Replies
5
Views
3K
Torque needed to start rolling motion on a inclined surface
Replies
10
Views
7K
I G Force Calculation Optimisation with camera, equations & accelerometer (drop testing)
Replies
4
Views
1K
RE: vehicle weight, HP, and gearing comparison between vehicles
Replies
5
Views
4K
Calculating Torque for a 21,000 lb Merry-Go-Round at 4 RPMs: A Design Challenge
Replies
1
Views
5K
How to calc force required to steer an articulated vehicle?
Replies
8
Views
8K
Calculating Vehicle Speed based on Downforce (Aerodynamics)
Replies
8
Views
4K

Hot Threads

Recent Insights

Back
Top