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Infrasound has resulted in a large amount of interest within the creation of NLW. It is apparent that given the technical depth that infrasound can be applied to within weaponry, a very in depth analysis of each device would be required.
Low redundancy, high strength The eyebars in the Silver Bridge were not redundant, as links were composed of only two bars each, of high-strength steel (more than twice the tensile strength of common mild steel), rather than a thick stack of thinner bars of modest material strength "combed" together, as is usual for redundancy. With only two bars, the failure of one could impose excessive loading on the second, causing total failure — which would be unlikely if more bars were used. While a low-redundancy chain can be engineered to the design requirements, the safety is completely dependent upon correct, high-quality manufacturing, assembly, and maintenance.
originally posted by: chr0naut
a reply to: servovenford
If the bridge collapsed due to an infrasound resonance, then the frequency of that sound is a function of the dimensions of the bridge and the 'brown note' can be calculated exactly as a first order, or primary, resonance..
originally posted by: chr0naut
a reply to: servovenford
If the bridge collapsed due to an infrasound resonance, then the frequency of that sound is a function of the dimensions of the bridge and the 'brown note' can be calculated exactly as a first order, or primary, resonance..
originally posted by: chr0naut
a reply to: servovenford
If the bridge collapsed due to an infrasound resonance, then the frequency of that sound is a function of the dimensions of the bridge and the 'brown note' can be calculated exactly as a first order, or primary, resonance..
Finally, Figg and its partners — the builder, Munilla Construction Management; the builder’s engineering consultant, Bolton Perez and Associates; the university; and the Florida Department of Transportation — failed to recognize that the cracking had reached unacceptable levels, and decided to keep the street open while workers tried to fix the problem, worsening the impact of the collapse.
originally posted by: Blue Shift
originally posted by: chr0naut
a reply to: servovenford
If the bridge collapsed due to an infrasound resonance, then the frequency of that sound is a function of the dimensions of the bridge and the 'brown note' can be calculated exactly as a first order, or primary, resonance..
But wouldn't the bridge itself have to be isolated to create a damaging resonance? Not sitting on concrete pillars in a river? The famous Tacoma Narrows bridge collapse in 1940 was a result of high winds. The Silver Bridge at Point Pleasant supposedly collapsed because it was poorly maintained, carried a much greater load than it was designed for, and had just one of the suspension cables snap to start the collapse.
I don't think people understand harmonic resonance that well.