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質問
'Modalfit' command is limiting the number of modes I can search
Hello, Recently, I have been conducting some modal analysis. I usually use the command 'tfest' on the data I have and then 'm...
7年以上 前 | 0 件の回答 | 0
0
回答質問
Complex Mode Shapes from FRF
I have been trying to implement an MDOF fit with MATLAB but I am having a hard time. The problem is that you do not give est...
7年以上 前 | 0 件の回答 | 0
0
回答質問
Problems using modalfit to obtain modal parameters
Hello, I have a problem using "modalfit". In this experiment, the force is always applied on one point, and i have measured o...
約8年 前 | 0 件の回答 | 0
0
回答質問
How to obtain modal parameters from FRF
Hello, Recently i have received the data of the Frequency Response Function in a frequency invertal of a given system. The s...
約8年 前 | 2 件の回答 | 0
2
回答質問
How do i solve this boundary value ode?
Hello, I am trying to solve an ode with two boundary conditions, one of which is applied to the first derivative of the funct...
約8年 前 | 1 件の回答 | 0
1
回答質問
Nyquist representation of a complex transfer function matrix
Hello, i am trying to get this particular representation of a complex transfer function matrix. The problem is, as i am working ...
8年以上 前 | 1 件の回答 | 0
1
回答質問
Eigenvector problem with complex conjugate eigenvalues
Hello, im solving here a viscous damping problem. As you can see det(A) is the equation that must be solved in order to obtain ...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How to get specific eigenvectors
Hello, im starting to use the function 'eig' to calculate the eigenvalues and eigenvectors of a problem. In theory, to calculate...
8年以上 前 | 1 件の回答 | 0
1
回答質問
Unexpected complex coefficients in a matrix
Hello, im trying to create a panel method for the study of an airfoil. Inside this problem, i have to obtain a matrix by combina...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How to indentify the variables when plotting after solving a coupled system of ODEs?
Hello, i had a system of coupled ODEs and i think i have solved it, the problem is that the variable Y which gives the output, i...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How can i plot a transfer function
Hello, im trying to plot this transfer function but somehow i dont know exactly what is failing, here is what im trying: sy...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How to solve a second order ODE with variable coefficients with an excitation.
Hello, after knowing how to solve an homogeneous 2nd order ODE i was wondering how to solve the same problem just adding and arm...
8年以上 前 | 0 件の回答 | 0
0
回答質問
How to solve this two second order ODE with variable coefficients and change of coordinates afterwards?
Hi, the problem here is to solve this 2 ode with variable coefficients and then change the coordinates using the called 'modal m...
8年以上 前 | 1 件の回答 | 0
1
回答質問
How do i solve a second order ODE with variable coefficients?
I am fairly new to MATLAB and i don't really know how to solve this equation. y''+(exp(-10t)+sen(10t))y'+y=0 If anyone could h...
8年以上 前 | 1 件の回答 | 0
