Recent content by Jason Louison

Okay, I'll do my best. When it is finished, I'll reply to this thread.

Okay, I think I am starting to understand the system a bit better, however I don't know wether to use the instantaneous wheel load or the static load over the tires for the rolling resistance.

I will try to accomplish this, but if I fall short, could you break it down for me?

Well, I assume it would be the instantaneous tire load multiplied by the friction coefficient divided by the mass of the vehicle: Am = Wm*Cf/mWouldn't this be it? Or is there another way?

Yes, this is true. Load will always shift from the front to the rear, but I would also like to simulate FWD and AWD systems as well. I mean, surely, there must be a way around this. Acceleration cannot depend on itself. Even if I make an if statement of the following...

The maximum traction force is the weight, or load, on the tire multiplied by the friction coefficient, yes. But the load on the rear wheels is ALSO dependent on acceleration. Wf,r,d = Wf,r,s+(h/L)*m*A

I am working towards a degree in mechanical engineering. I am graduating in a couple of weeks. Sorry for the misunderstanding. I will do some more research as to how the system works, but is the system even possible? I understand the effects but I want to simulate it in the most realistic way.

Summary: Impossible System? Hello, I am trying to simulate the dynamics of a vehicle accelerating from a standstill to top speed. The vehicle acceleration equation is: Av = (Ft+Ff)/m Where Ft = Traction Force, Ff = Friction Force (From Drag and Rolling Resistance), and m = Vehicle Mass My...

Hello Physics Forums! After almost a year of haggling and research, I think I have successfully made a engine simulation spreadsheet! :oldbiggrin: I have simulated the Nissan KA24DE Engine with two different cam profiles: As far as I'm concerned, there is still a lot of work to be done...

Haha, I know very well that MFB has to be actual percent (1.00 instead of 100). That would result in an astronomical error xD. I have been playing around with the Heat loss term a bit, I have yet to come to a conclusion as to what I am doing wrong, but I'm getting there!

Hello Physics Forum Users! I have an annoying situation with the Finite Heat Release Equation used to simulate combustion and expansion processes in an internal combustion engine. The equation is as follows: Nomenclature: P = Cylinder Pressure (kPa) θ = Crank Angle (Deg) k = Specific Heat...

Here's what I've got so far (Brainstorming Sheet): The flow of air is choked, and reaches its maximum when it reaches the speed of sound. I decided to make a two zone model to especially highlight this phenomenon. Zone 1 is Subsonic Flow, whereas zone 2 is Supersonic (Critical/Choked) Flow...

Already on it!

Thank you for those wise words, anorlunda. I have decided to go for a compressible mass flow rate equation, given valve curtain area, discharge coefficient, pressure ratio, and temperature. This is as technical you can get with computer simulation (especially on a spreadsheet). I will make a...

I am essentially using it as the slope of a linear equation for mass into the cylinder, as shown in this graph: The reason why I am worried about this method is valve overlap. As you can clearly see in the example above, I have yet to come up with a solution to this. If I do...