摘要:
The present invention relates to a device that is to be arranged between a construction and a support or between the construction and lifting equipment for absorbing impact loads associated with lifting the construction on or from the support, in particular in an offshore environment. The device according to the invention comprises a stack of at least one layer, comprising a plurality of coplanar modules with load absorbing material, wherein the modules are essentially identical and are mounted in or on a mounting arrangement, wherein a selectable number from the plurality of modules is arranged in the at least one layer to adapt a property, such as stiffness, of the at least one layer, and the selected number from the plurality of modules is adaptably distributed over the mounting arrangement. The present invention also relates to a method of assembling a device according to the invention.
摘要:
A tool connection (9, 47) for connecting a tool (1) to a tool support (16), the tool connection (9, 47) including at least one radial shock absorber (19, 20) for at least partially absorbing shock imparted by the tool (1) via the tool connection (9, 47). The radial shock absorber (19, 20) has shock absorbing assemblies (22, 23), each including at least two elastic layers (24) and at least one inelastic layer (25) interleaved between the elastic layers (24). The layers (24, 25) of the shock absorbing assemblies (22, 23) are radially distributed with respect to a connection axis (10, 11) passing through the tool connection (9, 47), the shock absorbing elastic layers (24) including an inner elastic layer (24) and an outer elastic layer (24) radially proximal and distal respectively to the connection axis (10, 11).
摘要:
The present invention provides a drilling apparatus that includes an outer housing having a longitudinal axis which extends longitudinally through the outer housing. The outer housing also has a chamber therein which has an axial cross-sectional shape (relative to the longitudinal axis) having an engagement configuration. The drilling apparatus also includes a first connector which has a first external connection section for connection to a section of a drill string, and a first insertion section which is axially received within the chamber. The first connector is securable to or forms a part of the outer housing when the apparatus is assembled. The drilling apparatus further includes a second connector which has a second external connection section for connection to a section of a drill string, and a second insertion section which is axially received within the chamber. The second insertion section has a complementary axial configuration to the chamber which engages with the chamber when received therein. The drilling apparatus also includes a vibration absorber seated within the chamber between the first connector and the second connector. In order to provide a float configuration, the second connector is axially moveable within the outer housing relative to the first connector. The second insertion section has a distal end which, in use, engages and compresses the absorber upon axial movement of the second connector towards the first connector within the outer housing.
摘要:
A sliding rubber damper (100) comprises of a plurality of metal parts (102), each of the plurality of metal parts (102) having a square part (202) with an extended rectangular arm (204), a plurality of rubber parts (104), a plurality of connection plates (106). Each of the plurality of rubber parts (104) is sandwiched between the square parts (202) of at least two adjacent pluralities of metal parts (102) and the rectangular arm (204) of each of the plurality of metal parts (102) is orthogonally coupled with the plurality of connection plates (106) by a coupling means.
摘要:
A pitch bearing for connecting first and second articles is provided. The first article includes a first curved outer surface and the second article includes a second curved outer surface opposite the first curved outer surface. The pitch bearing includes an axisymmetric structure interposed between the first and second curved outer surfaces. The axisymmetric structure includes compliant layers and stabilizing layers interleaved between the compliant layers. The compliant layers and the stabilizing layers proximate to the first article haves a curvature matching that of the first curved outer surface. The compliant layers and the stabilizing layers proximate to the second article have a curvature matching that of the second curved outer surface. A shear stiffness of each of the stabilizing layers is greater than a shear stiffness of each of the compliant layers.
摘要:
The present invention relates to a shock absorbing device (100) for mating an integrated deck to a jacket leg (51), characterized by: a hollow constraining cylinder (10) having a bottom closure (11), connected to the top of the jacket leg (51); an elastomer module (20) provided in the hollow constraining cylinder (10), wherein inner diameter of the hollow constraining cylinder (10) is larger than outer diameter of the elastomer module (20) thereby forming an annular space; a plurality of reinforcing plates (30) embedded within the elastomer module (20), vertically spaced apart from each other; a protective assembly comprising a elastomeric cap (41) and a minimum of one protective ring (42) mounted to the elastomeric cap (41); wherein during mating of the integrated deck to jacket leg (51), a support column (52) of the integrated deck abuts on the protective assembly and compresses the elastomer module (20) to secure the connection of the integrated deck to the jacket leg (51).
摘要:
The invention relates to a wave power unit with a floating body (1), a submerged station (2) and flexible connection means (3) connecting the floating body (1) to the submerged station (100). The submerged station (100) has a stator 5 (5) and a moving part (6). According to the invention the flexible connection means (3) is provided with a damper (12). The damper (12) is arranged to absorb tensile forces in the flexible connection means (3). The invention also relates to a use of such a wave power unit and to a 10 method for producing and supplying electric energy.