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A guy-wire, guy-line, guy-rope, down guy, or stay, also called simply a guy, is a tensioned cable designed to add stability to a freestanding structure. They are used commonly for ship masts , radio masts , wind turbines , utility poles , and tents .
A guyed radio mast. A guyed mast is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground or a base) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads.
Aeolian vibration causes damaging stress fatigue to the cable [5] and represents the principal cause of failure of conductor strands. [4] The ends of a power line span, where it is clamped to the transmission towers, are at most risk. [5] The effect becomes more pronounced with increased cable tension, [5] as its natural self-damping is reduced.
Tensegrity, tensional integrity or floating compression is a structural principle based on a system of isolated components under compression inside a network of continuous tension, and arranged in such a way that the compressed members (usually bars or struts) do not touch each other while the prestressed tensioned members (usually cables or tendons) delineate the system spatially.
Guy lines have egg-shaped strain insulators inserted to prevent the high voltage on the mast from reaching the ground, and to break the lines into segments with non-resonant lengths. A single mast radiator is an omnidirectional antenna which radiates equal radio wave power in all horizontal directions. [ 4 ]
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A tension member is a structural element designed to carry loads primarily through tensile forces, meaning it is subjected to stretching rather than compression or bending. These members are integral components in engineering and architectural structures, such as trusses , bridges , towers, and suspension systems, where they provide stability ...
Because the characteristic impedance of each transmission line segment , is often different from the impedance of the fourth, input cable (only shown as an arrow marked on the left side of the diagram above), the impedance transformation circle is off-centred along the axis of the Smith Chart whose impedance representation is usually normalized ...