Method for researching influence of double-cable spacing and icing on double-cable wake galloping

A technology of icing and spacing, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of poor reliability and applicability, and achieve the effect of improving reliability and applicability

Inactive Publication Date: 2018-05-18
WUHAN OPTICS VALLEY BEIDOU HLDG GRP
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Problems solved by technology

[0004] The invention provides a method for researching the influence of double-cable spacing and ice coating on double-cable wake galloping, and solves the technical problem of poor reliability and applicability of the double-cable wake galloping research method in the prior art

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  • Method for researching influence of double-cable spacing and icing on double-cable wake galloping
  • Method for researching influence of double-cable spacing and icing on double-cable wake galloping
  • Method for researching influence of double-cable spacing and icing on double-cable wake galloping

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Embodiment Construction

[0045] The embodiments of the present application solve the technical problem of poor reliability and applicability of the research method of double-cable wake galloping in the prior art by providing a research method for the influence of double-cable distance and icing on double-cable wake galloping.

[0046] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application. , rather than limiting the technical solutions of the present application, the embodiments of the present application and the technical features in the embodiments can be combined without conflict.

[0047] A research method for the influence of double-cable spacing and ice c...

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Abstract

The invention belongs to the technical field of bridges, and discloses a method for researching the influence of double-cable spacing and icing on double-cable wake galloping. The method includes thefollowing steps that a double-cable three dimensional model is established, and wind load is applied to the double-cable three dimensional model through a numerical simulation method; through a finiteelement solution method, a lift coefficient time-history curve and a resistance coefficient time-history curve of the double-cable three dimensional model, an aerodynamic coefficient curve of an omnidirectional-angle double-cable three dimensional model and a galloping force coefficient curve of the omnidirectional-angle double-cable three dimensional model are calculated, wherein the double-cable three dimensional model includes a first cable-spacing icing cable-stayed double-cable model, a second cable-spacing icing cable-stayed double-cable model, a third cable-spacing icing cable-stayed double-cable model and a second cable-spacing icing-free cable-stayed double-cable model. The invention provides a method for researching the influence of double-cable spacing and icing on double-cablewake galloping, and the result is high in applicability.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a research method for the influence of double-cable spacing and ice coating on double-cable wake galloping. Background technique [0002] Stayed cables are an important part of bridges. Because of their larger spans and smaller diameters, and compared to bridge structures, cable-stayed structures have smaller rigidity, lighter weight, and smaller damping, so they are easier to withstand wind loads. A dynamic response is generated under action. The wake gallop of the cable is a kind of wind-induced vibration. Wake galloping refers to two cables placed in series. Under the action of wind load, the downstream cable will be excited by the wake of the upstream cable and increase its own vibration. The vibration amplitude of the downstream cable will continue to increase. A stable vibration is reached at a certain large amplitude, and the amplitude will not increase. [0003] In the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/22
Inventor 谭冬梅柳勇陈武罗素珍刘晓飞吴浩
Owner WUHAN OPTICS VALLEY BEIDOU HLDG GRP
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