Unless the hull has an adequate system of framing and girders to span the unsupported sections, like a bridge it will buckle and collapse.We can add to this the fact that boats are dynamic objects; they often travel at high speeds over rough water and even occasionally, if not frequently, become airborne.
Unless the hull has an adequate system of framing and girders to span the unsupported sections, like a bridge it will buckle and collapse.We can add to this the fact that boats are dynamic objects; they often travel at high speeds over rough water and even occasionally, if not frequently, become airborne.Tags: Real Love Does Not Exist EssayIng Cover Letter WithoutThe Color Purple EssayWhat Is Problem Solving ApproachEssay About Violence In MoviesAp Bio Essay Questions 2009Business Plan OverviewExposition EssayEssay Child AbuseExample Of Qualitative Research Proposal In Education
Most bridges do not consist of a flat deck supported by girders underneath.
Rather, most bridges are either in the form of a truss, or they are suspended from above by a combination of rigid and flexible supports.
Before we go directly into reviewing problems, its important that we first review the major principles of hull design.
From and engineering standpoint, fiberglass boats have similarities to both bridges and aircraft airframes.
Aircraft utilize the principle of monocoque construction.
That is, the body of the aircraft does not have a frame but essentially is the frame.A boat is also similar to this principle since the hull bottom and sides do not alone constitute the entire structural framework.Boats that lack weather decks and superstructures, for example, are far weaker than their cousins who do have these additional structures.Contrary to common belief, actual manufacturing defects only rarely figure into structural failures.It should come as no surprise to any surveyor that the boat building industry, much like the automotive industry which, after more than 70 years of mass production, backed up with their enormous financial resources, is still fraught with frequent design defects.A discussion of these similarities will help us to better understand the forces that act on a boat hull, and the structural principles required to build one.Boats are similar to bridges in that the hull must have a framing system to support it because the hull itself, like a bridge, spans a fluid substance.Modern fiberglass boats make use of this principle of monocoque construction and in this way are more closely related to aircraft than they are to their wooden-boat ancestors from which they evolved.A wood boat is the sum of its many parts while a fiberglass boat hull is essentially one component.There is no better illustration of this than the offshore racer type boat, a long skinny hull equipped with tremendous horsepower.In the so-called "cigarette" type boat, the deck provides a major part of the hull strength that, lacking a strong deck, the hull would buckle.