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Method for calculating responsivity of apron air cushion system of hovercraft

A calculation method and hovercraft technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as numerical calculation of undiscovered three-dimensional apron responsivity, improve speed and seaworthiness, and increase responsiveness Effect

Active Publication Date: 2020-09-15
708TH RES INST OF CSSC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, no numerical calculation of the responsivity of the 3D apron has been found in the current public literature

Method used

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  • Method for calculating responsivity of apron air cushion system of hovercraft
  • Method for calculating responsivity of apron air cushion system of hovercraft
  • Method for calculating responsivity of apron air cushion system of hovercraft

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Embodiment Construction

[0036] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0037] combine figure 1 , a method for calculating the responsivity of a hovercraft three-dimensional apron provided by the present invention comprises the following steps:

[0038] Step 1. According to the geometric parameters of the air cushion of the hovercraft and the characteristic parameters of the fan in the design state, the characteristic parameters of the air cushion of the hovercraft in the initial state are obtaine...

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Abstract

The invention provides a method for calculating responsivity of an apron air cushion system of a hovercraft. In the sailing process of the hovercraft, the height change delta hc of the air cushion iscaused by rising of the water surface or falling of a hull, firstly, it is assumed that apron deformation is delta hs0, and the air cushion pressure Pc and the bag pressure Pb are solved according toa draught fan characteristic curve and a draught fan-air duct-large bag-air cushion flow continuity equation; apron deformation is calculated to obtain actual apron deformation delta hs; the process is subjected to multiple rounds of iteration until the standard is met, and finally the obtained delta hs / delta hc can be used as the standard for measuring the responsivity of the apron of the hovercraft. In the hovercraft apron design process, responsivity calculation can guide apron design to improve the overall performance of the hovercraft. According to the numerical calculation method for theresponsivity of the apron air cushion system of the hovercraft, apron design can be guided in the apron design process, and great engineering practical value is achieved for improving the overall performance of the hovercraft.

Description

technical field [0001] The invention relates to a method for calculating the responsivity of an apron air cushion system of a hovercraft, in particular to a method for calculating the responsivity of a three-dimensional apron based on air cushion dynamics and apron dynamics. Background technique [0002] Hovercraft is a kind of high-performance ship with amphibious characteristics by inflating the apron with the pad lift fan to form an air cushion to support the hull out of the water. Due to its advantages of high speed, amphibiousness, and small underwater physical field, the hovercraft is widely used for beach landing, Rescue, border patrol, mine clearance, material and personnel transportation and other fields. [0003] Due to the existence of the fan-apron-air cushion system, the motion characteristics of the hovercraft are affected by many factors such as aerodynamic force, hydrodynamic force, large deformation of the flexible structure of the apron, and the interaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23G06F119/14
CPCG06F30/23G06F30/15G06F2119/14
Inventor 徐圣杰熊逸凡褚胡冰胡景丰何秦邬成杰张宗科
Owner 708TH RES INST OF CSSC
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