Evaluation method for overhanging launching of semi-submersible barge carrying ship
A semi-submersible barge and overhang technology, which is applied in the direction of slipway, instrument, geometric CAD, etc., can solve the problems of engineering planning and construction difficulty in the construction period, and achieve the effect of shortening the construction period, good versatility and simple calculation.
Pending Publication Date: 2022-07-12
YIU LIAN DOCKYARDS SHEKOU LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The above shortcomings have a great impact on project planning, construction period, construction difficulty, etc.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0051] It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orien...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an evaluation method for overhanging launching of a semi-submersible barge bearing ship, and the method comprises the steps: obtaining the allowable stress of a material of an overhanging structure; respectively calculating the maximum shearing force of the overhanging structure at the base line section, the total gravity of the overhanging structure, the maximum stress of the overhanging structure on the base line section, the allowable shearing force and allowable bending moment of the material of the semi-submersible barge stern and the total bending moment of the overhanging structure relative to the base point; if the following conditional expression is met, the ship to be launched can be launched successfully by using the semi-submersible barge: Q is greater than or equal to F; sigma < = sigma 1; f1 > = F; m1 > = M; wherein Q is the maximum shearing force of the overhanging structure on the base line section, F is the total gravity of the overhanging structure, sigma is the maximum stress of the overhanging structure on the base line section, and sigma 1 is the allowable material stress of the overhanging structure; f1 is the allowable shearing force of the material of the semi-submersible barge stern, M1 is the allowable bending moment of the material of the semi-submersible barge stern, and M is the total bending moment of the overhanging structure relative to the base point.
Description
technical field [0001] The patent of the present invention belongs to the field of ship launching methods, and in particular relates to a method for evaluating whether the semi-submersible barge-bearing ship can be successfully launched when the length of the ship to be launched is greater than the length of the semi-submersible barge. Background technique [0002] The launching methods of ships and marine engineering equipment are divided into three types: gravity launching, floating launching and mechanical launching. The construction sites are divided into three types: dock construction, slipway construction and flat construction. Among them, flat construction does not occupy the valuable dock and slipway resources of the shipyard. It is a highly maneuverable and economical way to launch ships with the launch of semi-submersible barges. It is widely used in the field of ship and marine engineering equipment construction. [0003] The semi-submersible barge launching metho...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/20B63C3/00G06F119/02G06F119/14
CPCG06F30/15G06F30/20B63C3/00G06F2119/02G06F2119/14Y02T90/00
Inventor 刘鹤梁玉玉袁华风
Owner YIU LIAN DOCKYARDS SHEKOU LTD