- #1

minger

Science Advisor

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## Main Question or Discussion Point

Hi guys, I need to find the natural frequencies of a series of pressure rakes. We have a numerical model, but I'd like to confirm with a hand calculation. I would like to model the pressure rakes as a cantilevered beam with varying cross section (i.e. as each tube "stops" the beam decreases in area).

I looked on Ohiolink for journal articles and through Timoshenko's

I looked on Ohiolink for journal articles and through Timoshenko's

*Vibration Problems in Engineering*but can't come up with anything. If anyone has an article, or a link somewhere I would appreciate it. Thansk,