An axial traction of 15000 psi is applied to the edge

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ss t, and mass density m is subjected to random uniform force power spectral density. Determine the peak response PSD value. Figure 19.1 Simply-Supported Beam Problem Sketch P¢dcDaIY`IWUVQ HY b@  X2   &£ %10¨©!RTRSR£¤¡ bg f ihSe A B C @¨PQHI2 G F0!&© ( E¨©D¡ " @ §98¤¡¦£756#©)4¤23&#£ %10!& ()" '& %$¡#£ " !¤©© §¨¥¦£¤¡¢ Material Properties E = 200 x 109 N/m2 υ = 0.3 m = 8000 Kg/m3 Geometric Properties Loading PSD = (106 N/m)2 /Hz Damping δ = 2% = 10. m t = 2.0 m Analysis Assumptions and Modeling Notes All degrees of freedom in the Y direction are selected as master degrees of freedom (MDOF). A frequency range of .1 Hz to 70 Hz was used as an approximation of the white noise PSD forcing function frequency. Results Comparison Target ANSYS Ratio Modal Frequency f (Hz) 42.65 42.66 1.00 PSD Freq (Hz) 42.66 42.64 1.00 Peak d PSD(mm2/Hz) 180.9 179.36[1] 0.99 Peak stress PSD(N/mm2)2 /Hz 58516. 58553.[1] 1.00 ANSYS Verification Manual . ANSYS Rele...
View Full Document

This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

Ask a homework question - tutors are online