Double integration in simulink
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Kindly guide me When I am doing double integral of constant 10 with time 10 sec it gives the result of 500 but when I am solving it by hand it gives the result of 1000. I am solving it as ---> integral_0^10 integral_0^10 10 dx dy = 1000 Images of solution and simulink is attached
7 个评论
Jesus Velazquez
2018-1-29
编辑：Jesus Velazquez
2018-1-29
What you have in Simulink is not the same as your original integral.
In Simulink, you have:
10 int_0^10 x dt
That results in 10x^2/2, which would yield 10(100)/2 = 500
I really don't know how you can do what you want.
mahmood hassan
2018-1-30
mahmood hassan
2018-1-30
Jesus Velazquez
2018-1-30
simulink will integrate twice, but over the same variable (time), that's why you are never going to get 1000.
Your first integrator does int 10 dt, then it goes into the second one, which does int 10 x dt. That results in 10x^2/2
mahmood hassan
2018-1-31
mahmood hassan
2018-2-3
Hi, May you guide me when I am doing a double integration of step function having properties (initial value =10, final value =5, step time =5) over total time = 10s.
why it does not gives the result of
result = 5 int_0^5 x dt + 10 int_5^10 x dt
result = 5x^2/2 + 10x^2/2
result = 62.5+375=437.5
But result in simulink is 312.5.
I will be thankful to you.
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Jesus Velazquez
2018-2-7
编辑：Jesus Velazquez
2018-2-7
That one is a bit more complicated
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