清空筛选条件
清空筛选条件

first order nonlinear ordinary differential equation simulink

1 次查看（过去 30 天）
Jeevan Patil
Jeevan Patil 2012-2-7
回答： Sebastian Castro 2015-7-21
I want to solve first order nonlinear differential equation.
dy/dt = 10*y ^ k (y has power k)
Is it possible to solve this equation in simulink. I tried to solve this equation in simulink, but it is showing error that output is NaN at some point of time.
I am passing output of integral block to the input of math function block (power). second input to math function block is k.
Output of math-function block is given input to gain block (gain value 10). and finally output of this block is given to input of integral block.
Is it the right approach??
If this is not right approach then how to solve this equation in simulink.
Regards Jeevan Patil
  1 个评论
RahulTandon
RahulTandon 2015-7-10
it is possible to easily attach your simulink file to the question. please do it. Will make life simpler for me!

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Sebastian Castro
Sebastian Castro 2015-7-21
That is the correct modeling approach, but for all k>0 that system is unstable.
That is why you're getting the error messages, as the integrator state keeps getting bigger and bigger over time.
- Sebastian

类别

在 Help Center 和 File Exchange 中查找有关 General Applications 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by