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# Nikolas Haimerl

10 total contributions since 2019

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Question

Solve overspecified equation system
I am trying to solve a set of equations where I have 3 variables and 4 equations which are not linearly dependent. Is there a ...

3 meses ago | 1 answer | 0

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Question

Solve System of NonLinear ODEs with bvp4c
I am trying to solve a system of ODES with specific boundary conditions q''=inv(DD)*(T-CC*q'-gg) in which q is a three dimens...

3 meses ago | 0 answers | 0

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Question

How can I solve a second order ODE backwards in simulink or matlab?
Hi, I have a second order ODE of the form: spp=inv(DD)*(tau-CC*[spx;spy;ap]-gg); sppx=spp(1); sppy=spp(2); app=0; Let q=(...

4 meses ago | 1 answer | 0

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Question

Nonlinear iteration is not converging. Try reducing the minimum step size and/or relax the relative error tolerance.
I am facing difficulty when running my Simulink model. I always get the error message: Nonlinear iteration is not converging w...

4 meses ago | 1 answer | 1

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Question

How do I solve the inverse kinematics of a nonlinear differential equation?
I am simulating a ball that is thrown with certain initial conditions: qp0=(q10,q20,qp10,qp20,omegap0) ; q10 and q20 being the i...

4 meses ago | 1 answer | 0

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Question

How to transfer output data from one simulation to another as its initial condition
I have two Simulations A and B in seperate files. I would want A to run from seconds 0-100 and produce output X. B should be run...

5 meses ago | 1 answer | 0

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Question

How to delay signal input ?
Hello, I am in need for a block in Simulink which delays the starting time of trasmition to the next block. Meaning if I have a...

5 meses ago | 2 answers | 0

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Question

How to I ensure that a triggered subsystem is run after the supersystem in Simulink?
Hi, I have Simulink system that is connceted to a If Action Subsystem wiht two inputs and an AND condition for the IF block. T...

5 meses ago | 2 answers | 0

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How do I change the initial condition at time t=0 of an IC block to an external value ?
hi, Thank you for your answer. Do you also have a suggestion how to circumvent the issue with the time system ? You were righ...

5 meses ago | 0

| accepted

Question

How do I change the initial condition at time t=0 of an IC block to an external value ?
I have a similiar Simulink system as in the example shown below. However, I would like the initial velocity at time t=0 to be an...

5 meses ago | 2 answers | 0