Should I have to assign the mass to the AutoTire again ?

TheConvolutedMind
TheConvolutedMind Altair Community Member
edited February 2023 in Community Q&A

I want to simulate two post shaker event of the motorcycle. I'm using CAD geometry of wheel to which I have assigned its total mass and Inertia (both tire and rim).

At the same time, I want to integrate AutoTire to my model. How should I proceed ?

Do I need to provide the actual mass for AutoTire again ? Won't it just double the mass as I have already assigned the mass to CAD model.

I just want to integrate the behavior and functionality of the AutoTire to the geometrical wheel?

I'm confused. Please help.

Best Answer

  • Sonu Manjhi_20605
    Sonu Manjhi_20605
    Altair Employee
    edited February 2023 Answer ✓

    Hi Aditya,

    You pointed out it correctly, if you add the wheel mass to autoTire panel then it will double the mass of the wheel in vehicle model. Use a small value like 0.001 kg in autoTire panel for Wheel mass and similarly do it for inertias.

    You can create an additional body for geometric wheel and put a fixed joint between the wheel hub and geometric body. Since the wheel hub has a fixed joint with wheel body inside autoTire, therefore it will not increase the degrees of freedom in the system.

    Regards,

    Sonu

Answers

  • Sonu Manjhi_20605
    Sonu Manjhi_20605
    Altair Employee
    edited February 2023 Answer ✓

    Hi Aditya,

    You pointed out it correctly, if you add the wheel mass to autoTire panel then it will double the mass of the wheel in vehicle model. Use a small value like 0.001 kg in autoTire panel for Wheel mass and similarly do it for inertias.

    You can create an additional body for geometric wheel and put a fixed joint between the wheel hub and geometric body. Since the wheel hub has a fixed joint with wheel body inside autoTire, therefore it will not increase the degrees of freedom in the system.

    Regards,

    Sonu

  • TheConvolutedMind
    TheConvolutedMind Altair Community Member
    edited January 2023

    Thanks a lot @Sonu Manjhi ji. I would if it leads to correct result I'm looking for.