FEM Analysis based on Kinematic data of Model
FEM Analysis based on Kinematic data of Model
(OP)
Hello Dear All
I am studying on FEM analysis for Biomedical Model (Knee Joint). I have kinematic data (translation (X,Y,Z) and rotation (Rx, Ry, Rz)) of Femur with respect to Tibia. This picture show us general movement of knee-joint
.
I mean, Tibia is fixed, Femur is moving based on kinematic data during 10 minute with certain time intervals . That is, I have data of kinematic ((X,Y,Z,Rx,Ry,Rz of Femur) at every time intervals. This question is that how can import the kinematic data into the Abaqus for FEM. I know Tabular in Amplitudes part of Abaqus. But I know that we can input just two data. one of them is time/Frqeuency, other one is Amplitude. Is it possible input all data of X,Y,Z,RX,RY,RZ into Abaqus at each time interval in order to move to femur. IF it is not possible just using Abaqus, it possible use the data work extra software (MATLAB etc.) with Abaqus or is there any subroutine in order to can define movement of Femur?
Thanks
I am studying on FEM analysis for Biomedical Model (Knee Joint). I have kinematic data (translation (X,Y,Z) and rotation (Rx, Ry, Rz)) of Femur with respect to Tibia. This picture show us general movement of knee-joint
. I mean, Tibia is fixed, Femur is moving based on kinematic data during 10 minute with certain time intervals . That is, I have data of kinematic ((X,Y,Z,Rx,Ry,Rz of Femur) at every time intervals. This question is that how can import the kinematic data into the Abaqus for FEM. I know Tabular in Amplitudes part of Abaqus. But I know that we can input just two data. one of them is time/Frqeuency, other one is Amplitude. Is it possible input all data of X,Y,Z,RX,RY,RZ into Abaqus at each time interval in order to move to femur. IF it is not possible just using Abaqus, it possible use the data work extra software (MATLAB etc.) with Abaqus or is there any subroutine in order to can define movement of Femur?
Thanks





RE: FEM Analysis based on Kinematic data of Model
Given the terminology you are using, I think you need expert supervision.
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RE: FEM Analysis based on Kinematic data of Model
RE: FEM Analysis based on Kinematic data of Model
You mean, I should do like in picture shown below. Like in the picture for 6DOF of femur, should i define BC in six step in order to can select boundary condition with a specific amplitude? or Can I define all BC with each specific amplitude of BC (U1, U2, U3, UR1, UR2, UR3) in a step. In addition, with respect to in which coordinate system Femur is moving/rotating and can I create specific coordinate system in order to movement of femur?
Thanks
RE: FEM Analysis based on Kinematic data of Model
You can use the global or a local CSYS. But one node can only act in one CSYS. So when you define the BC relative to a local or global CSYS for a node, then another BC on that node has to use the same CSYS.
For another node you are free to do it different again.