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Radhakrishna Kothamasu


Active since 2016

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How to set sample time properties if the model's fundamental sample time is slower than sample time with highest priority?
I want to run my model with multiple sample times with a fixed step solver. So, I chose periodic sample time constraint as 'spec...

8 years ago | 0 answers | 0

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Question


Does the order of the fixed step solver has any influnce on the stability of the simulink model?
I use fixed step solver for my models. I would like to know the influence of solver order on the stability of the model. I use o...

8 years ago | 0 answers | 0

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answers

Question


How to upgrade Lookup and Lookup 2D blocks to 1-D Lookup Tables and 2-D Lookup tables
I have old Lookup tables in my model and I would like to upgarde them to 1-D and 2-D Lookup tables through a script file. How ca...

8 years ago | 0 answers | 0

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Question


How to change 1D and 2D lookup tables to nD?
I want to change all the Lookup tables in my model to n-D through a matlab script file. The purpose is to activate 'Search index...

8 years ago | 0 answers | 0

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Question


How to change Index search settings for 1D and 2D Lookup tables through a script?
I would like to activate 'Begin index search using previous index result' for 1D and 2D Lookup tables in my model. I do not see ...

8 years ago | 0 answers | 0

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answers

Question


Derivative of a step in discrete domain is impulse and would like to avoid it. How to do it?
I used discrete derivative blocks in my model. Discontinuous signals are fed to these derivative blocks and sometimes I get peak...

8 years ago | 1 answer | 0

1

answer

Question


switching variants at HiL possible?
I have two differnet variants of gearbox models modelled as enabled subsystems in a drive train model. I can switch them at HiL ...

8 years ago | 0 answers | 0

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Question


Unable to create a baseline in Performance Advisor with error Inadvertently tried to change Model Advisor work system before ending previous session.
I would like to run performance advisor for a model and I could not create a baseline. The following is the error I incurr: Fa...

8 years ago | 0 answers | 0

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Question


Why Ramp block output is continuous even when a discrete solver is chosen?
I observe that ramp output is continuous even when the discrete solver is chosen for the entire simulink model? I am expecting a...

8 years ago | 2 answers | 0

2

answers

Question


How to assign lower sample time to the Integrators than the sample time of the complete model?
I have a model running at one milli second. I want to have a sample time of 0.1 millisecond as a sample time to a Integrator blo...

8 years ago | 0 answers | 0

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Question


How to create a alternative sample time to Integrator blocks such that Integration is done at higher sample rate in a triggered subsystem?
I have a model running with one millisecond sample time. I would like to run a one of the subsystems at a sample time 0.1 millis...

8 years ago | 0 answers | 1

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answers

Question


I have imported a singal data from real time testing software as a mat file and copied in the workspace. I want to know how can I feed this time based signal to my simulink model?
I want to send this time based signal data to my model through 'from file' block. But matlab is throwing an error that file not ...

8 years ago | 0 answers | 0

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Question


How to identify which block is causing precision loss in the simulik model?
When I update my simulink model, I see a couple of warnings stating small quantization errors have occurred and precision loss o...

8 years ago | 0 answers | 0

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Question


Reason for oscillating values of discrete Integrator
I have a model with a sample time of one millisecond in which discrete Integrator output is oscillating every milli second betwe...

8 years ago | 0 answers | 0

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Question


My simulink model is crashing on real time testing. I foundout that turnaround time is higher than the sample time specified. I have a hardware interrupt assigned to one of the subsystems. Any solution?
My model has a sample time of one millisecond and one of the subsystems is triggered with dspace hardware interrupt with trigger...

8 years ago | 0 answers | 0

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answers

Question


Can function call generator suffice the sample time?
Hi, i have a simulink model in which one of the blocks has to run faster than the complete model. I would like to use function c...

8 years ago | 0 answers | 0

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answers

Question


How do I create a trigger for a subsystem which has to run faster than the rest of the simulink model?
I have a transmission plant simulink model which is interconnected to complete vehicle model. I need to run this plant model fas...

8 years ago | 0 answers | 0

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answers

Question


How to do stability analysis of a MIMO simulink model?
I want to analyze a simulink model of a transmission system. I want to derive the transfer function of the system to make the an...

8 years ago | 1 answer | 0

1

answer

Question


How to derive equations from Matlab lookup table data?
I want to analyze the stability of a simulink model. I happened to have 3-D lookup tables in my model. I have two questions rega...

8 years ago | 1 answer | 0

1

answer