Monday, June 01, 2009

Bouncing Betties

Quick Way to distinguish
Sinusoidal from Harmonic Motion

Note: Barn Army physicist Don M was just recognized by the NABT¹ for solving a problem that's opened new possibilities in  Aero Space engineering  (Shhh ... Area 51)
Solution

Answer (for Engineers)


Broken down for dummies like me, and other non-engineers:
Sinusoidal Motion Harmonic Motion Classic Sinusoidal & Harmonic Combo
¹ NABT

7 comments:

Anonymous said...

I'm an engineer but I like your explanation better.

AnnoyedOne said...

Yeah those motions definitely need further and in-depth study. Can I get a gummint grant? ;-)

Anonymous said...

Soooo... you're telling me someone's figured out the math for the old in-and-out?

Bob1

Anonymous said...

I'm not good at math, but I've been trying to figur this out. Anyone have any Dramamine?

Plowboy

Anonymous said...

Well, to gain a full understanding, I should point out that the first two examples are synchronous motion while the third is symmetrical motion.
(Just thought I'd toss that in... bein' having been an astronautical engineer an' all.)
—DougM

Anonymous said...

I should probably also point out that the lower-frequency, large-scale dynamics may, indeed, loosely approximate a sinusoid; but the motion is highly modified by the fluid mechanics of the semi-fluid masses, the damping effects of the clothing, and the slight variations in timing of the forcing function.
Another interesting titbit: if one could stand closer and assess the motion in slow motion. One would be able to see higher-frequency, short-term surface transients usually overlooked when the brain's blood flow is diverted to the nether regions of the observing male... and 'cause my glasses fog up.

JMcD said...

Opened my sinuses right up.

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