Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SDETERS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: TEIF-RO
  • Content: Threads
  • Order by date
  1. TEIF-RO

    How to do a reccurent substitution in a symbolic matrix in matlab withor the ''FOR'' loop?

    Hi I have this symbolic 2x2 matrix in Matlab. z is A Symbolic variable k(z)= [ z+1, z^2; exp(z), z^3]. I need a value of k(z) for z=1:N How to do this without a loop '' FOR'' Thanks
  2. TEIF-RO

    obtaining a NORMALISED POWER SPECTRUM DENSITY

    Hi EVERYONE Attached is the SIGNAL in FIGURE 1 its Power Spectral Density( PSD ) in FIGURE 2 as well as the matlab code to get FIGURE2. How will I get the Normalised Power Spectral Density of FIGURE 3? what to add in the matlab code? its a dynamic response of a wind turbine Thanks...
  3. TEIF-RO

    Hoew to connect a nonlinear visco damper to a flange

    Hi Everyone I want to connect a visco damper(VD) on the steel-made flange of a tower in ABAQUS. The VD is modelled USING CONNECTORS. The connectors was linked to a flange using the RP (which are tied to a flange) as per the pictur attached. Im not getting the expected results. Now from a...
  4. TEIF-RO

    How to model a viscous damper in abaqus using nonlinear dashpot element?

    I want to use the viscous damper in abaqus. I firstly used spring/dashpot but it didn't work. Now I realized the best way is to uses the nonlinear dashpot element. Can someone explain me how to do it? Thanks
  5. TEIF-RO

    COUPLIND-TMD-IN -ABAQUS

    Hi I want to mount a TMD (m,k,c) on my beam-like structure in Abaqus. The beam has a mass at its top(point mass in abaqus). Practically, a tmd should be placed inside the top mass. Its seems impossible to do this as the top mass here is a point!!! Should a TMD mass be also a point mass? if yes...
  6. TEIF-RO

    Looking for A DOF of Coupling (rotational-translational spring)

    Can you please tell me what DOF should be chosen for KLR spring in ABAQUS as per the attached ?
  7. TEIF-RO

    Negative cross-coupling spring in ABAQUS

    Hello everyone. I will like to add a cross spring stiffness in my abaqus model. The value is KLR=-3.08E8. I have already consider the negative sign in the analytical model with no problem. Now my question is: How to add spring with negative stiffness in abaqus since abaqus doesn't accept...

Part and Inventory Search