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Marius


ETH Zürich

2015 年からアクティブ

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Mass Matrix SWITCH Problem in Matlab
Now it gives me the error: Error using odearguments (line 92) @(T,Y)ROCKING_DGL(T,Y,TIME_R,DT,UG,VG,FSSFUN,SYS...

9年弱 前 | 0

回答済み
Mass Matrix SWITCH Problem in Matlab
Is there another possibility to do this? Is it true that now it is substituting the variables in each step of the ODE15s solver?...

9年弱 前 | 0

質問


Preconditioner for non linear mass matrix
I have to solve an ODE system of the form: M(y,t)*dydt = F(y,t) The problem is, that it is very ill conditioned. I used...

9年弱 前 | 1 件の回答 | 0

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Problems with Preconditioning for ODE Solver
I'm trying to solve a dynamic FEM Problem for a 3D cantilever beam with 2 Elements. I enterred the Input in mm, N etc. Now when ...

9年弱 前 | 0 件の回答 | 0

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How to Compute MvPattern?
I'm trying to compute the MvPattern Sparsity Matrix S for the use in ODE15s solver because my Mass Matrix M(t,y) is strongly dep...

9年弱 前 | 1 件の回答 | 0

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Provide Jacobian Matrix for ODE15s solver
I'm using the ODE15s solver and want to ad the input for a jacobian matrix. The following file calculates the jacobi matrix J: ...

9年弱 前 | 1 件の回答 | 0

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Mass Matrix SWITCH Problem in Matlab
Thank you for your answer! 1)We would need to see how you initialized your flag variable to figure out why you are getting th...

9年弱 前 | 0

質問


Mass Matrix SWITCH Problem in Matlab
I'm having a problem with my ODE in Matlab. The code to start the ODE solver is the following: refine = 4; options = ...

9年弱 前 | 4 件の回答 | 0

4

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Problem with Event Function
I created a function file which contains my ODE which has to be solved. In each step a value is calculated: i_up = 0 or 1. If it...

9年弱 前 | 1 件の回答 | 0

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Problems with strrep: y(1)0 instead of y(10)
I'm having a problem replacing some strings with strrep. I have to replace some strings y1,y2,y3,y4 etc with y(1),y(2),y(3),y...

9年弱 前 | 3 件の回答 | 0

3

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Convert symbolic system of differential Equations to numerical for ODE45
Hi all. I have to solve a FEM Problem. For this I created a function which computes the needed matrices and so the set of differ...

9年弱 前 | 0 件の回答 | 0

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How to change the ODE to be solved for different ranges in ODE45
Hi I have to solve a dynamics problem with MATLAB. I have two differential equations which are only valid for positive resp. ...

約9年 前 | 2 件の回答 | 0

2

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Real time plot of vibration data
Hi everybody For a course at the university I need Matlab to compute a realtime plot of vibration data. Below you find the in...

10年弱 前 | 2 件の回答 | 0

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