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A method for simulation of anchor chain entry accumulation and volume margin analysis of anchor chain compartment

An analysis method, the chain locker technology, applied in the analysis field of ship chain lockers, can solve the problems of inability to predict the dynamic geometry of the stacking process and the inability to accurately simulate the volume margin of the chain locker, so as to improve space utilization The effect of efficiency, anti-corrosion structure optimization and cycle shortening

Active Publication Date: 2018-11-13
JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to simulate and accurately analyze the volume margin of the anchor chain cabin for long chains with more than 1000 chains that cannot be accurately simulated in the prior art, and cannot dynamically predict the geometry of the chain stacking process. And optimize the design of the space of the chain locker, and provide a simulation method for the accumulation of chain locks in the tank and the analysis method of the volume margin of the chain locker

Method used

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  • A method for simulation of anchor chain entry accumulation and volume margin analysis of anchor chain compartment
  • A method for simulation of anchor chain entry accumulation and volume margin analysis of anchor chain compartment
  • A method for simulation of anchor chain entry accumulation and volume margin analysis of anchor chain compartment

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Embodiment

[0025] Example: The basic design parameters of the mooring system of a certain type of ship are: the length of the anchor chain is 385.0mm, the number of anchor chains is i=1500, the diameter of the anchor chain is a marine mooring chain of φ58mm, and the type of chain locker is "circular" section. The windlass wheel adopts "horizontal" arrangement, and the side anchor lip cooperates with the 23250kg heavy holding anchor. According to figure 1 The flow chart shown in the figure carries out the simulation of the accumulation of chain cables in the tank and the analysis of the volume margin of the chain locker, and gives the optimal volume design scheme of the chain locker;

[0026] Step a, such as figure 2 As shown, according to the given basic design parameters of the mooring system, the three-dimensional modeling of the chain locker 1, the anchor chain 7, the chain guide roller 4, the windlass wheel 3, the chain pipe 2, the anchor rod 8, the anchor crown 9 and the anchor lip...

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Abstract

The invention discloses an anchor chain stowing and stacking simulating and anchor chain locker volume redundancy analyzing method. The analyzing method comprises steps as follows: a virtual prototype of a three-dimensional anchor chain stowing model is established according to size parameters of an anchor chain locker, anchor chains, a chain guiding roller, an anchor gear wheel, an anchor chain tube, an anchor rod, an anchor crown and an anchor mouth, multi-rigid-body contact-impact dynamics simulation is performed on the three-dimensional anchor chain stowing model, a mathematical model for chain stacking in the anchor chain locker is established according to geometrical stacking morphology of the anchor chains, quantitative regression analysis is performed on the anchor chain stacking volume, redundancy analysis is performed on the anchor chain locker volume according to a result of quantitative regression analysis, and optimal volume design of the anchor chain locker is conducted. According to the anchor chain stowing and stacking simulating and anchor chain locker volume redundancy analyzing method, the mathematical model for chain stacking in the anchor chain locker is established according to the geometrical stacking morphology of the anchor chains, so that the space utilization rate of a ship compartment is greatly increased, and the reliability of arrangement of whole anchor system parts and design of the anchor pulling motion is digitally verified through dynamic simulation and quantitative analysis of anchor chain stowing and stacking.

Description

technical field [0001] The invention belongs to the technical field of ship equipment, and in particular relates to an analysis method for a ship chain locker. Background technique [0002] As an important part of the overall layout of the ship, the structural design of the chain locker and the analysis of the accumulation shape of the anchor chain in the cabin play an important role in the entire anchor pulling process. Can the space utilization rate of the ship's cabin be maximized and the anchor chain stacking action can be guaranteed? Smooth progress is the difficulty in the overall design process of the ship. There is a lack of systematic research results on the accumulation process of anchor chains entering the cabin and the accumulation form. To construct the dynamic volume equation of anchor chain accumulation, the traditional regular geometry volume equation cannot accurately simulate the accumulation time. There is no mature geometric shape prediction formula for c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 刘志强纪飞飞柳鹏钱兴达
Owner JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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