April 22, 2022 at 5:16 pmemimecaSubscriber
Hello everyone, I'm trying to model a spring-disc structure on Ansys APDL. I modeled the spring with a combin14 element attached to a fixed node and another one related to a mass element. To model the disc, I tried putting a cicular frontier with plane182 and to link it to the masspoint with mpc184 elements. But when I ad these mpc and plane elements, the system as no frequency of vibration. Can someone help me with that issue ?April 28, 2022 at 1:45 pmChris QuanAnsys EmployeeSuggest you posting this in the forum of MAPDL & Mechanical.
May 4, 2022 at 10:01 pmSheldon ImaokaAnsys Employee
PLANE182 is a 2D element, which means it is geometrically and spatially 2D. It is used for 2D axisymmetric, 2D plane strain, or 2D plane stress.
I am wondering if you wanted a shell element (e.g., SHELL181) instead? Shell elements are geometrically 2D but spatially 3D. If you wanted a thin disc connected to a spring in 3D space, a shell element is probably what you want.
If you did intend to use 2D elements, can you clarify if you are doing 2D axisymmetric or 2D plane stress? Do you have an image you can share of what you are trying to model?
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