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Ansys simulation for Random vibration(white noise)

Submitted by munnamarfy on
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Hi All,

I am a new user to ANSYS s/w, I want to do a Vibration analysis of a cantilever
beam for white noise (Random vibration) excitation.

Can anybody help me to answer how to give a white noise input in ANSYS.

Thank you

Ansys simulation for Random vibration

Submitted by munnamarfy on
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Ansys simulation for Random vibration

Hi All,

I am a new user for Ansys software, I want to do a white noise response simulation... can anyudy help me to answer that how to give a white noise(Random force input)input  in ANSYS s/w.

Thank you

Post-Doc position in the area of Computational Mechanics, Institute of Structural Mechanics, Bauhaus Uni. Weimar

Submitted by pattabhib on
research
xfem
post doc
computational methods
multiscale methods
BDM
BSM
Molecular Dynamics (MD)
Isogeometric Analysis

We are looking for a Post-Doctoral Fellow in the area of Computational Mechanics. The position is available within the Institute of Structural Mechanics, chair of Computational Mechanics at the Bauhaus University Weimar, Germany. The key research areas of the chair of Computational Mechanics are Multiscale Modeling of Materials and Isogeometric Analysis.

A comparison of Ansys Shell181 and Solsh190 elements

Submitted by Biswajit Banerjee on
research
ansys
sandwich
composite
plates
shells
shell181
solsh190

Please find attached a report on a comparison between ANSYS SHELL181 and SOLSH190 elements with particular emphasis on applicability to linear elastic sandwich panels.

Title: Comparison of Ansys elements Shell181 and Solsh190

Abstract:

Post-Doctoral Fellow in Computational Structural/Solid Mechanics and Design

Submitted by Masoud Rais-Rohani on
research
Plasticity
design optimization
Nonlinear FEA
Coupled Process-Performance Simulations

Applicants are sought to fill a post-doctoral position in
computational solid/structural mechanics and design. The selected applicant will work
closely with Prof. Masoud Rais-Rohani and his research colleagues and graduate

Can you imagine a mechanical system that is stable without friction, but suffers a flutter instability when friction is 'added'?

Submitted by Davide Bigoni on
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Experimental Mechanics Forum
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Have you ever seen a structure subject to flutter instability?

Can flutter instability be connected to dry friction?

We provide positive answers to the above questions, watch the video at

http://www.ing.unitn.it/~bigoni/flutter.html


Can you imagine a mechanical system that is stable without friction, but suffers a flutter instability when friction is 'added'?

Submitted by Davide Bigoni on
research
friction
flutter instability

Have you ever seen a structure subject to flutter instability?

Can flutter instability be connected to dry friction?

We provide positive answers to the above questions, watch the video at

http://www.ing.unitn.it/~bigoni/flutter.html


superlattice brillouin zone and Symmetry points

Submitted by rmbarki on
research
brillouin zone
superlattice
symmetry
bandstructure

Hi

I was trying to find the brillouin zone of a GaAs superlattice and their points of symmetry to use it in determing the bandstructure. I am using the [111] as the z direction and the structure is periodic in the x and y direction but none periodic in the z direction. I am still looking for my way in this field and i couldnt find a good textbook that explain this, especially how to find the symmetry points of a crystal whether it is in bulk stucture or superlattice. So i really would appreciate any help or guidance in this problem.

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