Generate random road from PSD
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I'm trying to generate a random road which will be used as input for a Quarter-car model.
I used the procedure described in this article http://link.springer.com/article/10.1007%2Fs12544-013-0127-8/fulltext.html .
In Figure 2, generated roads are plotted with a maximum elevation of 15 mm for A-B category and 100 mm for D-E. My problem is that I get much higher amplitudes from those reported by them. I attached the code that I'm currently using. I'm not sure what I'm doing wrong, any guidance would be appreciated.
Length of road = 250 meters
Spatial frequency band = 0.004 -> 4
Here are some formula used to generate road.
9 个评论
Juan Luis Chacon
2016-6-30
hi... are you still interested on this question?
Bob
2016-10-27
Dear Juan Luis Chacon,
Although it's been a long time, yes I'm still interested.
I have generated random road profiles, for car, through the equation (9).
After all, I didn't manage to get the Dynamic Load Diagram (Fig. 5).
However, I tried to calculate it through the displacement of unsprung mass minus the amplitude of the road but I didn't get the same result with the paper.
Last but not least, the most important for me, the last Diagram (Fig.6) which somehow I have to figure out how to get it through the equation (12)
Maltesh Kammar
2017-1-24
Hello,
Is it possible to share your MATLAB code as I'm working on creating road profile for Motorcycle?
Thank you in advance
Tk Tarik
2017-5-25
Hey.I am working on half car model to predict the dynamic load imposed by the tiers on the road.I have generated the road profile but I don't know how to make it an input for the half car model I had built. tktarik0@gmail.com
Teron Nguyen
2017-8-16
Hi, I am also investigating this problem, could you please share me the MATLAB code to generate artificial road profiles? Email: rontevan85@gmail.com Thank you.
Janani L
2017-10-12
Could you please send this code. I am a research scholar. My topic is related to road roughness janani847@gmail.com
Jan
2017-10-14
This is a strange thread: 4 persons posted their email address, which this unusual in a public forum. One has posted a new question in the section for answers, which I have removed.
Prakriti
2024-1-5
Did you solve the issue?
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