Theoretical question: Given a column of wood subjected to an axial load which would eventually cause "crumpling" (multiple shear failures), would the column be more resistant to the crumpling if already constructed in that crumpled shape? That is, I guess, the original column is largely...
Yes, a bit as been done. I suggest you go to Medline - US Library of Medicine and query. There have been a few papers in the Equine Veterinary Journal in recent years.
I hope you know the detailed anatomy very well. T'aint no cinch!
I have read with interest and, often, amusement the posts regarding impact forces. My question is an academic one. Immediately upon impact there can be a variable number of rather high frequency, low amplitude vibrations before the system settles to a steady state. I should like to model this...
Thank you, Heitor. I have seen that site and the definition of alpha as flow of voltage(or something like that; I don't have the site in front of me). I still would like to know, however, what that means in a mechanical system.I may be able to understand mediation of voltage flow but simply...
The equation:
y"+a(y^2-1)y'+by=0
Where y is displacement, y" is acceleration, y' is velocity and a and b are constants. b,of course, is the stiffness constant and a is what I want to know what it is. Any help, even wild guesses appreciated.
I guess I am rather disappointed by the lack of response to this question which plagues me considerably. Is it lack of interest or that no one knows? I'd be happy with any guesses or a simple statement that no one knows much less the "final"answer.
Thank you. I'm afraid I misled. What I am looking for is a physical meaning for the constant multiplying the nonlinear damping term in the van der Pol equation. I am using a comined van der Pol and Duffing and did not make myself clear. I do understand the meaning of the damping constant with...
With a selfexcited system (nonlinear equation of Duffing/van der Pol type) what does the constant which multiplies the damping term mean in physical, real terms? Thanks
All these responses are amusing. The important one, however, is that seagulls are protected, and you mess with them at your legal peril.
Live with them. They have as much "right" to be here as we do and have you noticed the amount of mess we make?
What is the DC component of a time series which is not electrical; that is, what does or can the zero frequency component represent?
I am looking at a series of stride lengths for a runner.
