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Drop test analysis of AC outdoor unit

Altair Forum User

Hi,

I am trying for the AC outdoor unit drop test simulation.

I have the whole AC unit cad model including the EPS packing.

For the meshing should I mesh whole model including the base panel, tubing & condenser.

is any method to reduce the no of meshing geometry, so I can able to reduce simulation.

Can anybody help me to solve the problem

Thanks & Regards,

Nitin

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Altair Forum User

Hi Nitin,

Element selection is based on the type of problem you want to run, boundary conditions, geometry considerations, and results required. Most problems can be solved many different ways and there is no “right” answer to the question of element selection, but making a good choice can reduce effort, computer time, and errors in the results. In general, point load masses are generally used to represent attached structures at their centroids. This is an extremely good way to represent otherwise complex structures when the detailed is not required.

I recommend you to go through our ebook Practical Aspects of Finite Element Simulation where all the basic aspects required for model building are covered. Please access the e book at: http://www.altairuniversity.com/free-ebooks-2/free-ebook-practical-aspects-of-finite-element-simulation-a-study-guide/

Altair Forum User

Thank you for the reply.

I want to consider only the packing material (EPS) & Outdoor structure.

For the other part how to do, you mentioned the point masses use.

can you share the exact book page no or any tutorial available

Thanks & Regards,

Nitin

Altair Forum User

Hi Nitin,

Please refer from page 65 onwards in the ebook which tells about planning the various phases for an engineering solution and major aspects of meshing are also covered.

In RADIOSS admas option is used to assign additional non-structural mass to nodes or a group of nodes. You can search for /ADMAS in Help Menu for more details on this and also please check this link: http://www.altairuniversity.com/learning-library/vi_f_added-mass-and-skew-frames/ which is a webinar on admas.