Question X-Acceleration and Peak X-Acceleration

BenanZahawi1
BenanZahawi1 Posts: 6
in GeoStudio

What is the difference between Peak X-acceleration and X-acceleration in the graphical results. I tried to compare the two on the surface but results were not the same.

Thank you

Answers

  • TrevorKent
    TrevorKent Posts: 28 Diamond Rank Badge

    Hi @BenanZahawi1, good question.

    X-acceleration is the acceleration value at the time data saved, while X-peak acceleration is the (absolute) maximum of the X-acceleration until that time. In the below graph, the maximum value on the peak acceleration (at point C) comes from the negative X-acceleration (marked with a red arrow at: -5.49 m/s2) and remains at that value since no other upcoming moment has higher acceleration. 

    You may notice that B shows two cases where the acceleration is higher than the peak acceleration. This is just due to the lack of enough data to capture true maximum (see the second graph). If the time step of the saved data (in Time tab) is big, these two graphs may not show a great match.

    image.png image.png

    I hope this helps. Please let me know if you have any other questions.

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