i am able to run double lane change test but i am not able to run Constant radius test. Why is it so?

UJWAL SATHISH
UJWAL SATHISH Altair Community Member
edited May 2022 in Community Q&A

this is 3 wheeler with (2F-1R) configuration .steering angle for double lane change test is as shown below

image

even though im able to run double lane change test , i am not able to run Constant radius test which shows solver failed with the following error. imagecan anyone help me figure out where i have gone wrong

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Answers

  • AnanthK
    AnanthK
    Altair Employee
    edited March 2022

    Hi Ujwal - What is the overall (on-car) steering ratio of this vehicle? What is the circle diameter of the constant radius maneuver? It appears to me that the turning radius of the vehicle might too big in order to be able to negotiate the circle, or the rear axle has lost grip at the limit (oversteer condition). Sharing your model could yield further revelations. 

  • UJWAL SATHISH
    UJWAL SATHISH Altair Community Member
    edited March 2022

    Hello Sir, Thank you for replying.

    The rack pinion coupler ratio is set to 6 which gives the overall steering ratio 16.5 .However i have tried to run the tests for different steering ratios ,all of them leading to solver failed status

    similarly, i have run the tests for different increased radius of constant radius curve only to get no success.

    please have a look at my model

      

  • AnanthK
    AnanthK
    Altair Employee
    edited March 2022

    The model appears to not open in MV 2021.2 Can you please create a model archive using File->Export->Model->Check boxes archive and create zip file->Export? We can take a look after and offer suggestions. 

  • UJWAL SATHISH
    UJWAL SATHISH Altair Community Member
    edited May 2022

    Hello sir,

    can u please share your email ID. I want to send my Model mentioned above .

    Thank You.

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