New User (Graduate Engineering Student) Modeling/Software Issues with Real Time Experiment
Posted: Thu Aug 08, 2019 1:06 pm
Hello,
I am a new engineering graduate student at the University of New Hampshire. My research involves using a system dynamic approach to analyze the effect of flooding in the soil of pavements, and we have chosen to use Vensim as the software. I am somewhat new to the software, but I have read through the online manual, the forum, and as well as completing some tutorials to get acclimated with the software. Attached is the current model I am using as an introduction to play around with the software myself. I am having a bit of a problem figuring out exactly how to do what I want in the software.
What the model is, represents an experiment where force is applied to an object, with an initial area and stiffness, over a set amount of time. The way I have the model right now is that over the time frame I want, there is a linear increase in the amount the object strains (deforms) as the force increases over time. However, in reality the area in the experiment would decrease as the force is increase. Basically, the object is being squished by the force and the area is getting smaller.
So, the problem that I am having is how to program my model so that after every time-step the "initial area" is decreased by some amount. This would allow for a more real life simulation of what would happen during the experiment. However, I can't seem to find anything similar to this type of model online, and without any reference I am not sure how to do this on my own.
Any help or recommendations would be much appreciated. Or if you know when a model similar would be that would also be appreciated. But, really verbal specific help but be much appreciated. If you have any questions or need anymore information from me please let me know. Thank you for taking the time to read this and giving me a hand.
Sincerely,
Alex Lefebvre
I am a new engineering graduate student at the University of New Hampshire. My research involves using a system dynamic approach to analyze the effect of flooding in the soil of pavements, and we have chosen to use Vensim as the software. I am somewhat new to the software, but I have read through the online manual, the forum, and as well as completing some tutorials to get acclimated with the software. Attached is the current model I am using as an introduction to play around with the software myself. I am having a bit of a problem figuring out exactly how to do what I want in the software.
What the model is, represents an experiment where force is applied to an object, with an initial area and stiffness, over a set amount of time. The way I have the model right now is that over the time frame I want, there is a linear increase in the amount the object strains (deforms) as the force increases over time. However, in reality the area in the experiment would decrease as the force is increase. Basically, the object is being squished by the force and the area is getting smaller.
So, the problem that I am having is how to program my model so that after every time-step the "initial area" is decreased by some amount. This would allow for a more real life simulation of what would happen during the experiment. However, I can't seem to find anything similar to this type of model online, and without any reference I am not sure how to do this on my own.
Any help or recommendations would be much appreciated. Or if you know when a model similar would be that would also be appreciated. But, really verbal specific help but be much appreciated. If you have any questions or need anymore information from me please let me know. Thank you for taking the time to read this and giving me a hand.
Sincerely,
Alex Lefebvre