Division of curves

Altair Forum User

Hi,

 

I have created a curve of acceleration Vs frequency as well applied load Vs frequency.

 

But actually my aim is to draw a curve of accelerance (acceleration/ force) Vs frequency.

 

I think it can be done using division operation (math curve)

 

But don't know how to apply?

 

Does anyone knows much about this, please help me.... /emoticons/default_sad.png' alt=':(' srcset='<fileStore.core_Emoticons>/emoticons/sad@2x.png 2x' width='20' height='20'>

 

 

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

Rahul_P1

To divide two curves, 

 

File > load > vehicle safety tools > then go to math in the menu > two curves math > divide > select the numerator and denominator,

 

Use divide by zero if necessary for your case, i.e. if c1 is divided by c2, and if c2 has any zero values, then c1/c2 equals 0.

Altair Forum User

I am not sure whether my process is right or not.

 

The curves I plotted using build plots.

 

I separated the window in to 4, 3 of the window I used for HG.

 

So in 2nd window I have acceleration plot, 3rd I have load.

 

And now from the 4th window if I am going for vehicle safety---math---divide its not coming the selection window for numerator nd denominator.

 

But without any plot I tried, in that case the numerator denominator selection window is coming..

 

So what will be my mistake?

Altair Forum User

Is there anyone is to help me???? /emoticons/default_unsure.png' alt=':unsure:'>

Rahul_P1

You will have to use XY plots and not the complex plots ( phase and magnitude )

 

So plot your data as a normal XY plot and then use divide function,