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Ship shafting optimizing method and optimizing platform

An optimization method and shafting technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as general effects

Active Publication Date: 2018-08-17
NAVAL UNIV OF ENG PLA
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Problems solved by technology

Existing optimization design methods have different emphases and applicable scenarios. Commonly used methods such as frequency modulation, reduction of vibration source excitation, and vibration isolation are used to reduce vibration and noise of the shaft system, but the effect is general. Numerical calculation methods are used A method to study the influence of shafting stiffness on bearing whirling vibration, but because this type of method ignores the difference between the bearing's horizontal stiffness and vertical stiffness, the calculated results of shafting whirling vibration in the horizontal and vertical directions are different from the real values

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  • Ship shafting optimizing method and optimizing platform
  • Ship shafting optimizing method and optimizing platform
  • Ship shafting optimizing method and optimizing platform

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Embodiment Construction

[0063] The invention will be described in detail below in conjunction with specific embodiments.

[0064] A method for optimizing the alignment of ship shafting, the basic steps of which include:

[0065] Step 1. Obtain the structural parameters and material parameters of the ship shafting system to be optimized, specifically including: the geometric parameters and material properties of each shaft segment in the ship shafting system, the support position of each bearing, the axial and vertical direction of each bearing Support stiffness, the geometric parameters include the size of the shaft, the material properties include elastic modulus and Poisson's ratio, and the support position includes axial position and vertical position;

[0066] Step 2. Establish a finite element model of the ship's shafting system based on the above-mentioned structural parameters and material parameters; perform discrete processing based on the above-mentioned finite element model, specifically r...

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Abstract

The invention belongs to the field of ship design, and particularly relates to a ship shafting optimizing method and optimizing platform. By means of the method, the shafting design quality is improved, and the aims of improving the shafting alignment quality and reducing shafting vibration are achieved by optimizing the positions of shafting bearings in the primary design stage. The basis is provided for ship safety and stable operation. By means of the method, the new scheme is provided for controlling the vibration characteristics of shafting in the alignment design stage, the method has important theoretical and engineering practical value, the defects of the scheme in the prior art can be overcome, and the design quality of various types of ship shafting is improved.

Description

technical field [0001] The invention belongs to the field of ship design, and in particular relates to a ship shafting optimization method and an optimization platform thereof. Background technique [0002] Ship shafting is an important structure that affects the ship's motion performance. The basic function of the shaft system is to transmit power, including transmitting the power from the main motor and other equipment to the propeller to drive the propeller to rotate, and transmitting the thrust or pull generated by the propeller rotation to the ship hull in the form of bearing force to drive the hull. Forward and backward. [0003] Due to the complex stress state of the ship itself, and the changeable channel and hydrological data, the ship and its shafting will bear a variety of different loads during navigation, and these loads will also affect each other. These loads will eventually directly For each bearing transmitted to the shafting, in order to improve the beari...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23Y02T90/00
Inventor 刘金林赖国军曾凡明吴杰长严红升曹诗杰
Owner NAVAL UNIV OF ENG PLA
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