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How to model: Non reflecting boundary condition "unbounded boundaries for elastic wave"

I have few ideas but I do not know how to implement them with my current APDL knowledge The first idea is to apply a pressure in the Harmonic analysis the harmnic analysis takes care of the time peridocity however to add the translational or simulate a propagating wave the pressure has to be a...

I might have an idea although I do not know how to implement it, "don't know much APDL" you can add a command snippet...I will explain my idea in http://www.eng-tips.com/viewthread.cfm?qid=330495 since I need to have periodicity as well I hope it helps

How to simulate elastic wave propagation in Solids? a) How to model an incident P-wave (Pressure Primary longitudinal wave) or SV, SH-wave The incident wave will be harmonic and it has periodicity in the direction of propagation P-wave is P=P0e1i.K.xe1i.omega.t S-wave is...

I just posted http://www.eng-tips.com/viewthread.cfm?qid=330495 I am having problems simulating a propagating incident wave

How to simulate elastic wave propagation in Solids? a) How to model an incident P-wave (Pressure Primary longitudinal wave) or SV, SH-wave The incident wave will be harmonic and it has periodicity in the direction of propagation P-wave is P=P0e1i.K.xe1i.omega.t S-wave is P=P0e1i.k.xe1i.omega.t...

@ rbpmc I just tried today the idea of sketching on surface then writing text. I picked wingdings font then pick the arrow the arrow did not align with the edges. I do not know why. I can place the arrow on either side of an edge ...

Thanks to anyone who suggested anything for your suggestion @rbpmc I did not fully understand your suggestion. I do not have solidworks right now. I have it on a different computer but let me tell you what I am thinking of doing: -Use surfaces to create planes (thickness will not be an issue)...

How about the subscript?

@rbpmc For me annotation is the issue how can you use subscript? For example for the angle theta_0, Also how can you draw the axis?

Any thoughts or ideas!!

@CorBlimeyLimey I used the standard planes and was able to change their transparency. However, I could not change each plane color. I was able to display them intersecting each other but could not make them intersect bodies. I thought about creating parts to represent planes but did not like it...

I am trying to create simple illustrative figures, like the ones you see in textbooks. My figures are a bit different I have a cylinder in space that is cut by three perpendicular planes (standard planes) and an oblique plane. The a vector perpendicular to the oblique plane surface makes two...

I am using ANSYS full in Harmonic response analysis. My model is made up of one part which is made up of more than one body. (A composite fiber of 3 layers). Whenever I add frequency response at a point between layers, it would not work. I get an error message that the point is on different...

I think I figured it out. However, got more questions :) For harmonic Forced vibration you can use Harmonic response analysis. Yes harmonic response solves for a range of frequencies. If you desire a specific frequency F=F0*sin(omega*t). Then, see the results for that particular frequency. The...

Thanks hacksaw, I did not understand Let us say you wish to model m (dx/dt2)+ c (dx/dt)+ k x = F and F is F=F0*sin(omega*t) what type of analysis would you use?

if I may add to Harmonic response analysis. Not only it is a range of frequencies but also it does not apply the harmonic frequency to the force. What would be the best way to study harmonic forced vibration?

Hi All, I am not sure how to use FE software and specifically ANSYS to conduct Forced vibration analysis. ANSYS has the following types of Analysis: Modal Analysis (basically calculates natural frequencies and mode shapes) Harmonic Analysis (provides the harmonic response under a range of...

An update still not quiet sure -the x (radial), y (axial) and z (tangential) directions I thought -the x (radial), y (tangential) and z (axial) directions That is at least how they were displayed on the screen while creating the coordinate besides I picked the orientation to be around z axis

Can anyone guide me on how to find specific help? Is there a specialist that I can talk to about specific problems like this? It is unfortunate that no body uses command snippet where I am. It is also unfortunate that it is hard to find those who worked in the same area.