Solving equation of motion in matlab

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Jenny on 22 Nov Vote 0. Commented: Jenny on 23 Nov I have the following equation of motion of a mass M, a damping force D, a stiffness K and a time dependent external Force F t :. Is there any possibility to solve this equation of motion with ODE or another Matlab command? Now I am new to Matlab and still a student, so i don't have a lot of experience with Matlab. I hope this is a simple problem that a more experienced Matlab user can help me to solve this problem.

Answers 1. Torsten on 23 Nov Cancel Copy to Clipboard. Best wishes. Jenny on 23 Nov Thanks for your answer! My problem is that F isn't constant, but time dependent after every second it gets another value. If I try to define F as an function, I get an error "Function definitions are not permitted in this context.

What about.This shows how to use Matlab to solve standard engineering problems which involves solving a standard second order ODE. The matlab function ode45 will be used. An example of the above is with an initial condition. Here is the result of solving this ODE in Matlab. Introduce 2 new state variables and carry the following derivation. This is the result of solving this in Matlab.

Now ode45 is used to perform simulation by showing the solution as it changes in time. Given a single degree of freedom system. This represents any engineering system whose response can move in only one direction. Drawing the free body diagram and from Newton's second laws the equation of motion is found to be. The forcing function frequency can also be changed. Natural frequency of the system. When the system is called over damped. When the system is called underdamped.

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The response to a step function is a standard method used to analyze systems. For example, given where for and for and forthe following code example shows one way to implement the above.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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What I do not know is how to get the general solution from this. I am using matlab. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Solving equation of motion differential equation by using matlab Ask Question. Asked 7 years, 4 months ago. Active 7 years, 4 months ago. Viewed 1k times.

solving equation of motion in matlab

Active Oldest Votes. Robert Israel Robert Israel k 23 23 gold badges silver badges bronze badges. What if some of the eigenvalues are complex? I was going to try and plot x t. Could I just square lambda or something to get rid of the complex values when plotting? Sign up or log in Sign up using Google.

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how to solve this equation of motion?

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solving equation of motion in matlab

Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Brian Peoples on 9 Apr at Vote 0.

Commented: James Tursa on 9 Apr at Accepted Answer: James Tursa. Screen Shot at Solve the following set of equations of motion using Matlab ODE Consider the following initial conditions:. To enter this set of equations into your Matlab code, you need to re-write them in the first order form. That will give you 4 equations, and you will have to enter those equations into your ODE solver. You will have y 1y 2y 3 and y 4 as your unknowns. Basically all we've done to solve 2nd order differential equations thus far was use a script and function only solving for one ode at a time w two initial conditions.Sign in to comment.

solving equation of motion in matlab

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You may receive emails, depending on your notification preferences. Script for solving equations of motion. Vote 0. Answered: Nicolas Schmit on 16 May Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.

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Script for solving equations of motion. Vote 0. Answered: Nicolas Schmit on 16 May Dear Matlab users. Can anyone provide me with a matlab script to solve EOM which are in matrix form?Sign in to comment.

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Equations of Motion

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MathWorks Answers Support. Open Mobile Search. Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. AJ on 21 Jan Vote 0. Commented: darova on 23 Jan Here is the paper:.

Answers 1. Vote 1. Cancel Copy to Clipboard. Here is an idea:. But how do you include the Te1 and Te2 which is the electromagnitude torque from the two motors?

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I really appreciate if you could see this code and help me with the of A and B:. The process that is given by the paper:. What I am trying to get out of the EOM:. Red is matrix coefficients A matrix. Green is constant variables B matrix. Also your initial conditions can't be all zero.

You won't get a results. Should be some initial speed. AJ on 22 Jan Thank you for the answer.


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