Impact/impulse force

forestis
forestis Altair Community Member
edited October 2020 in Community Q&A

I want a force to act on a body just for short period of time , to be like an impulse.

Could i just apply a static force to act for 0.1 seconds?

Tagged:

Answers

  • Praful
    Praful
    Altair Employee
    edited October 2019

    Hi forestis - You could use the type 'Expression' and have an expression something like this - `STEP(TIME, 1,0,1.1,100)+STEP(TIME,1.1,0,1.2,-100)`

    In this expression, the first STEP function increases the force to 100 from time 1 sec. until then it is 0. In the next STEP function,  the force is being dropped down back to 0.0. (otherwise the force will remain at 100 for the remaining time of the simulation)

     

    You may also use a Curve that has the impulse profile of your choice and use TIME as the independent variable while using the type Curve.

     

    regards

    praful

     

  • asajd_20372
    asajd_20372 New Altair Community Member
    edited October 2019

    Using Inspire Motion you can use a Force Actuator and prescribe the Impulse function like shown in attached image.

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

  • asajd_20372
    asajd_20372 New Altair Community Member
    edited October 2019

    ... model and video are attached.

    Unable to find an attachment - read this blog

  • forestis
    forestis Altair Community Member
    edited November 2019

    Thanks a lot both of you for your replies!

Categories