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Marine elastic rudder

It is an elastic and marine-used technology, which can solve the problems of low rudder efficiency, small lifting force around the flow, and poor maneuverability of ships, and achieve the effect of improving rudder efficiency.

Pending Publication Date: 2022-07-26
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the state of direct sailing, the symmetrical airfoil has less resistance; but in the steering state, the lift of the flow around the symmetrical airfoil is small, the rudder effect is low, and the maneuverability of the ship is poor.

Method used

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  • Marine elastic rudder
  • Marine elastic rudder
  • Marine elastic rudder

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Embodiment Construction

[0019] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] like Figure 1-4 As shown, this embodiment discloses a marine elastic rudder, comprising: a rudder stock 1, a rigid frame 2 and an elastic rudder body, the rudder stock 1 is fixedly connected to the rigid frame 2, and the rigid frame 2 includes a chordwise The first sealing body 3, the intermediate body 4 and the tail sealin...

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Abstract

The marine elastic rudder comprises a rudder stock, a rigid frame and an elastic rudder body, the rudder stock is fixedly connected with the rigid frame, the rigid frame comprises a head sealing body, a middle body and a tail sealing body which are sequentially connected in the chordwise direction, the elastic rudder body comprises a shell and a filling body, the shell is connected with the head sealing body and the tail sealing body, and the filling body is connected with the shell. A containing cavity is defined by the outer shell and the middle body, and the filling body is arranged in the containing cavity; and when the rudder is in a steering state, the elastic rudder body on one side of the incident flow surface of the rudder is stressed to contract, and the elastic rudder body on one side of the back flow surface of the rudder is stressed to expand. During direct navigation, the section of the rudder blade is in a symmetrical airfoil shape, and resistance is small; during steering, the section of the rudder is in an asymmetric airfoil shape, larger lift force can be generated, and therefore the steering effect is effectively improved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a marine elastic rudder. Background technique [0002] As an important ship equipment, the rudder device plays a decisive role in the ship's maneuverability, and the rudder blade is the terminal component of the rudder device, and its performance has a significant impact on the ship's heading stability and turning performance. Considering the bidirectional symmetry of the rudder blade function, the rudder blade profile is usually a symmetrical airfoil. In the straight sailing state, the symmetrical airfoil has less resistance; but in the rudder state, the symmetrical airfoil has less lift around the flow, the rudder efficiency is low, and the ship's maneuverability is poor. SUMMARY OF THE INVENTION [0003] The present invention provides a marine elastic rudder to solve the above problems. [0004] A marine elastic rudder, comprising: a rudder stock, a rigid frame and an elasti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/38
CPCB63H25/382
Inventor 侯立勋王庆才朱军区胡安康常欣闯振菊王顺
Owner DALIAN MARITIME UNIVERSITY
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