Hello ,
I am performing Modal analysis for ultrasonic cylindrical horn at a frequency 20KHz. After performing the linear perturbation analysis to find the natural frequency of the horn the end result shows a distorted meshed figure. I am unable to understand where I am going wrong.
Any help related to this query would be appreciated.
Technical specifications of the horn.
Diameter : case 1: 2 cm , case 2: 6 cm
length :14.3cm
Natural frequency: 20KHz
material: Aluminium
Thank You so much.
Hi Tanya Pande,
I think such high frequency requires much more fine mesh than Student Edition can provide.
How can model with very small number elements response to very high modal vectors? Please check the subject modal analysis including relationship between mode numbers and modal vectors..
Its because of Hourglass energy effect.
Switch to element formulations with fully-integrated or selectively reduced integration.
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