Design method for section closure accuracy of octagonal pile leg

An octagonal pile and design method technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as unmentioned precision design, save man-hours and materials, ensure work requirements, reduce impact loads and The effect of material wear

Inactive Publication Date: 2012-10-10
COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD +2
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Problems solved by technology

The patent applied by Dalian Shipbuilding Industry Group Co., Ltd.: large-scale truss-type pile leg segmentation data detection method (patent number: CN200710157587.7) discloses a method for measuring the size and local accuracy of triangular truss-type pile legs. Dimensions and segmental dimens

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  • Design method for section closure accuracy of octagonal pile leg
  • Design method for section closure accuracy of octagonal pile leg
  • Design method for section closure accuracy of octagonal pile leg

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Embodiment Construction

[0015] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0016] The present invention shows a method for designing the dimensional accuracy of octagonal pile legs segmented and closed. This embodiment takes the precision design of large-scale wind power installation ship pile legs as an example. The pile legs are octagonal orifice plate structures, and the main board is NV690 Ultra-high-strength steel with a thickness of 100mm, a pile leg height of 71.5m, and a single weight of 630T. The precision design steps of the pile leg are divided into sections, drawing a size chain diagram, precision distribution, compensation amount calculation, size and tolerance determination, etc. multiple steps.

[001...

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Abstract

The invention relates to a design method for the section closure accuracy of an octagonal pile leg. The method comprises the following steps of: dividing the pile legs into sections; performing accuracy distribution on each section by using the dimension chain principle; calculating the compensation amount of welding deformation to replace allowance by a method for calculating the compensation amount of ship sections, so that the sections are constructed without the allowance; and forming a dimension chain by using the added compensation amount, the basic dimensions of the sections and a gap between weld joints, and calculating the reasonable tolerance range of the closed sections. The method has the advantages that the dimension accuracy of pin holes after closure welding is ensured, an impact load and material wear which are caused when the pin holes are matched with pin shafts are reduced, working time and materials are saved, the working requirement of the pile leg is met, and the like.

Description

technical field [0001] The invention relates to the technical field of precision design of marine engineering equipment, in particular to a method for designing the dimensional precision of octagonal pile legs segmented and closed. Background technique [0002] Offshore wind power generation is a new direction of development in the world today, and its wind turbine installation equipment and technology are the core technologies for occupying the field of offshore wind power. The design of wind power equipment installation ships has high technical content and difficult construction, requiring the support of a large number of high-tech core technologies. The wind power installation ship has a number of legs that can be lifted. The leg is a key component of the wind power installation ship. Its bearing capacity is responsible for the lifting of the whole ship. Safety and effectiveness of work. The production of pile legs is extremely important in the construction of the entir...

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Application Information

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IPC IPC(8): B23P17/00B23K31/02
Inventor 庄建军张朝阳唐盛弢沈翰屠艳张永康顾永玉欧阳占欢陈永明闻武
Owner COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD
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