Ship docking block bearing reaction calculation method
A calculation method and a technology for supporting the reaction force, applied in the field of ships, can solve the problems of long time and complex modeling, and achieve the effect of real results.
Active Publication Date: 2020-08-21
COSCO ZHOUSHAN SHIPYARD
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Problems solved by technology
However, in this method, the direction of the finite element calculation is used to analyze the force of the dock pier. There is a problem that the modeling is complicated and takes a long time. It cannot solve the eigenvalues of some ships such as the position of the center of drift / high stability.
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0022] A method for calculating the support reaction force of a ship dock, comprising the following steps:
[0023] Step 1. According to the actual layout of the docks in the shipyard, draw the layout of the docks; in this embodiment, the docks are concrete-wood composite docks or steel-wood composite docks;
[0024] Step 2. According to the characteristics of the ship, the distribution of the docking pier is divided into three areas: the skeg area, the middle area and the bow area, where multiple characteristic pier points are respectively set in the skeg area, the middle area and the bow area , and N docking piers are set at the most stern of the pier diagram, and N is a positive integer; in this embodiment, a characteristic pier point distributed in the skeg area, middle area and bow area corresponds to a row Dock piers; N dock piers are s...
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The invention discloses a ship docking block bearing reaction calculation method, which comprises the following steps of: drawing a docking block arrangement drawing according to the actual docking block arrangement condition of a shipyard; then calculating the bearing reaction of each characteristic block placing point in the stern fin area, the middle area and the stem area of the ship in different drafts so as to obtain the total bearing reaction of all docking blocks and the bearing reaction of the stern docking block; if the average bearing reaction of a single docking block at the sternpart is greater than the maximum bearing reaction force allowed to be used by each docking block under the condition of different drafts, adjusting the number of the stern docking blocks and the docking block distance, recalculating the bearing reaction until the average bearing reaction of the single docking block at the stern is 0, and drawing a curve of the total bearing reaction change condition of all the docking blocks and a curve of the bearing reaction force change condition of the single row of docking blocks at the stern in the whole dock floating process of the ship. According to the method, the calculated bearing reaction is closer to the reality than the bearing reaction calculated by directly utilizing the characteristics of the ideal rigid beam in the traditional method by utilizing the flexibility of the actual ship body, and the result is more real.
Description
technical field [0001] The invention relates to the field of ships, in particular to a calculation method for the support reaction force of a ship's dock pier. Background technique [0002] When the ship is parked in the dock, the dock pier is used as the support body. In order to avoid excessive stress at the contact point between the hull and the dock pier when the ship floats or falls in the dock, causing damage or accidents to the hull structure, it is necessary to repair the dock. Calculating the buoyancy and pier support reaction force, and rationally adjusting the layout of the pier can effectively avoid accidents. The support reaction force of the traditional dock pier is calculated according to the static water data under constant draft, and the support reaction force is concentrated on the last row of dock piers. Obviously, the dock pier is difficult to bear. The instant draft of floating is not the bow draft of full floating, so the change of dock support reactio...
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IPC IPC(8): G06F30/13B63C5/04G06F119/14
CPCG06F30/13B63C5/04G06F2119/14
Inventor 陈斌华杨璐艳
Owner COSCO ZHOUSHAN SHIPYARD