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Solving for impact force
2

Solving for impact force

Solving for impact force

(OP)
Hi all,

I have conducted impact tests of steel sphere against steel plate. I collected data of voltage generated by piezoelectric crystal of force sensor. This voltage is proporational to the displacement. Ok I have two data series(columns), first for time & displacement. In MATHCAD, how can I differentiate this displacement against time to get velocity & then acceleration. As data is in column format.

Thanking in advance.

Suhas Pawar

RE: Solving for impact force

IRstuff provided just the velocity.  Assuming the time between samples is equal then the acceleration can be calculated by

a(n):=x(n+1)-2*x(n)+x(n-1)/(delta t)^2

We have provided to very simple ways of calculating the velocity and acceleration.

There are higher order interpolation methods.

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