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Rotational stiffness
| Проектирование строительных объектов (терминология Еврокодов) |
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Жесткость при повороте, русский
Момент, вызывающий единичный поворот узла.
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Rotational, английский
- Безкамберный - парус с латами полной длины, чтобы закрутить его с подветренной стороны мачты, независимо от галса, создавая тем самым более эффективный профиль. чем длиннее латы безкамберного паруса, тем он стабильнее (но менее маневренен) при сильных вет
- Вращательный
Rotational axis, английский
Rotational camp, английский
Rotational capacity, английский
Rotational capacity:, английский
The angle through which the joint can rotate for a given resistance level without failing
Rotational crew operation, английский
Rotational earth slide - [mass movement], английский
The process, associated sediments (rotational earth slide deposit) or resultant landform characterized by an extremely slow to moderately rapid type of slide, composed of comparatively dry and largely unconsolidated earthy material, portions of which remain largely intact and in which movement occurs along a well-defined, concave shear surface and resulting in a backward rotation of the displaced mass; sediments predominantly fine earth (< 2 mm). the landform may be single, successive (repeated up and down slope), or multiple (as the number of slide components increase). compare - rotational debris slide, rotational rock slide, translational slide, lateral spread, landslide. sw & dv
Rotational effect of vibration, английский
Rotational error, английский
The error that occurs when functional patterns are misaligned by some
Rotational fault, английский
Rotational feed, английский
Круговая подача (напр., поворотного стола станка)
Rotational flow, английский
Rotational joint, английский
См. rеvоlutе jоint
Rotational mhd discontinuity, английский
Rotational movement, английский
Rotational oscillation, английский
Three of the six possible ship motions in response to the sea are pivoting movements. • roll is due to waves hitting the ship abeam, tipping it over on its side, pivoting around its longitudinal axis until the centre of gravity pulls it up again. an extra heavy roll is seldom due to inherent lack of stability, but probably indicates that the encounter period is close to the natural period of the vessel. (see also synchronous roll and parametric roll.) • pitch occurs when crests and troughs moving parallel to the ship toss its stem and stern upward and downward. this is effectively roll around the vessel’s transverse axis but, because a ship is far longer than it is wide, the effects are quite different. the period is longer and even a small angle is so magnified by the time it reaches the extremities that they may be lifted clear of the water. a raised bow can then slam back, producing a cascade of water across the forward weather deck and, possibly, a “whipping” effect throughout the length of the hull; while a rising stern can lift the propeller out of the water, with a danger of engine damage due to racing. experiments with anti-pitch fins have met with little success, and changing the vessel’s speed or course remains the most effective response. • yaw is oscillation horizontally around the vertical axis. in conditions of yaw, the vessel’s centre of buoyancy moves steadily forward in the desired direction while its stem and stern skid alternately to port and starboard. yaw caused by wave action in a seaway is especially difficult to control because wave profiles and pressures are not usually the same to port and starboard and these inequalities are compounded by orbital motion of water in the seaway as wave profiles change. moreover, at every half wavelength the water next to the rudder will be moving in the same direction as the vessel, compounding the helmsman’s problems. the winds and waves that cause these motions may come from anywhere and can rapidly change direction, but the ship’s period of encounter is more important than the absolute period of the wave-form or its direction. this is because the ship is moving relative to the seaway and will meet crests and troughs more frequently or less depending on its speed, and whether it is headed into the waves, diagonally across them, or broadside on.
Rotational rock slide - [mass movement], английский
The process, associated sediments (rotational rock slide deposit) or resultant landform characterized by an extremely slow to moderately rapid type of slide, composed of comparatively dry and largely consolidated rock bodies, portions of which remain largely intact but reoriented, and in which movement occurs along a well-defined, concave shear surface and resulting in a backward rotation of the displaced mass. the landform may be single, successive (repeated up and down slope), or multiple (as the number of slide components increase). compare - rotational debris slide, rotational earth slide, translational slide, lateral spread, landslide. sw & dv
Rotational shear, английский
Rotational shear failure, английский
Rotational slide, английский
Rotational slide [mass movement], английский
The process, associated sediments (rotational landslide deposit) or resultant landforms characterized by an extremely slow to moderately rapid type of slide, composed of comparatively dry and largely soil-rock materials, portions of which remain largely intact and in which movement occurs along a well-defined, concave shear surface and resulting in a backward rotation of the displaced mass. the landform may be single, successive (repeated up and down slope), or multiple (as the number of slide components increase). compare - rotational debris slide, rotational earth slide, rotational rock slide, translational slide, lateral spread, landslide. sw & dv
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Runway beam for hoist block, английский
Rotational capacity, английский
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