MPC

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello Experts,

 

When to apply Multi Point Constraints? In equations under Analysis tab, what is the importance of weight of the dependent node?

Tagged:

Answers

  • tinh
    tinh Altair Community Member
    edited July 2016

    whenever you want to constraint dofs as:

     

    sum(Di x Wi) = S

    D1, D2, ... are dofs

    W1, W2,... are weight of those dofs

     

    thinking you are modeling two shafts with external gears

    constraint of their rotation (ex z-axle):

    D61x10 - D62x20 = 0

    D61, D62 are dof6 of node1, node2 that you bind by mpc

    10, 20 are number of tooth

    - : indicate external gear

     

    so: bigger weight means more influence

Categories