A Method for Determining the Supporting Rigidity of Cantilever Beams to Deck Longitudinals
A determination method, beam technology, applied in the field of determining the support stiffness of cantilever beams to deck longitudinals, can solve the problems of large modeling and calculation time, inconvenient hull structure design and performance evaluation, etc., and achieve the effect of cost saving
Active Publication Date: 2021-07-23
708TH RES INST OF CSSC
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the nonlinear finite element method has high requirements for computer and software operators, and it takes a lot of modeling and calculation time, it causes inconvenience to the hull structure design and performance evaluation. There is an urgent need for a fast, reasonable and safe method to determine The theoretical method of the ultimate bearing capacity of the cantilever support plate frame, and the key to this method is to find a method to determine the support stiffness of the elastically fixed cantilever beam to the deck longitudinal
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
[0024] In order to make it easy to understand the technical means, creative features, goals and effects achieved by the present invention, the following examples are combined with the appended figure 1 to attach Figure 4 The technical solutions provided by the present invention are described in detail, but the following content is not intended as a limitation of the present invention.
[0025] The invention is a method for determining the support stiffness of a cantilever beam to a deck longitudinal, figure 1 It is a flow chart of a method for determining the stiffness of a cantilevered support plate of the present invention to the longitudinal support; as figure 1 As shown, the method for determining the support stiffness of the cantilever beam to the deck longitudinal provided by this embodiment includes the following steps:
[0026] The first step is to establish a calculation model for the stiffness of the cantilever beam to the longitudinal support;
[0027] When a sh...
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 provides a method for determining the support stiffness of an elastically fixed cantilever beam to deck longitudinals, and belongs to the technical field of ship structure engineering. A method for determining the support stiffness of an elastically fixed cantilever beam to a deck longitudinal, mainly comprising the following steps: Step 1, establishing a calculation model for the stiffness of a cantilever beam to a deck longitudinal; Step 2, establishing the dynamics of an elastically fixed cantilever beam Equation, obtain the lowest order frequency formula; Step 3, establish the calculation model of the torsional stiffness of the elastic fixed end of the cantilever beam; Step 4, determine the torsional stiffness of the elastic fixed end of the cantilever beam; Step 5, determine the support stiffness of the cantilever beam to the deck longitudinal; Step 6 , combined with the influence factors of the cantilever beam on the support stiffness of the deck longitudinal, determine the focus of ship structure design. The invention proposes a method for determining the supporting rigidity of the cantilever beam at the large-scale damage to the deck longitudinal, which lays a foundation for studying the rigidity, strength and stability of the damaged hull structure.
Description
technical field [0001] The invention relates to the technical field of ship structural engineering, in particular to a method for determining the support stiffness of an elastically fixed cantilever beam to deck longitudinals after a hull is damaged. Background technique [0002] Accurate calculation and reasonable evaluation of the remaining strength of the hull can effectively ensure the rationality and safety of the ship structure design, and the checking of the support stiffness of the damaged hull members to the deck longitudinal is the key to determine the axial bearing capacity of the deck longitudinal. [0003] The International Association of Classification Societies (IACS) added the content of residual strength check after hull girder damage to the HCSR code implemented in 2016. HCSR stipulates the depth and height of the damage range of the collision for the calculation of the residual ultimate strength of bulk carriers and oil tankers, but does not specify the le...
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 Patents(China)
IPC IPC(8): G06F30/15G06F30/17G06F30/20G06F111/04G06F119/14
CPCG06F30/13G06F30/20G06F2119/06
Inventor 彭营豪陈雷厉吴剑国田喜民马剑
Owner 708TH RES INST OF CSSC