DVOR (Doppler Vor) omnidirectional range reflective net antenna damping system

Abstract

The invention discloses a DVOR (Doppler Vor) omnidirectional range reflective net antenna damping system. A damping support I is arranged between an upper strut and a lower strut of a reflective net bracket, a damping support II is arranged between a reflective net and an antenna orbit, and the two damping supports are high-damping rubber gaskets with built-in gasket lined steel plates. The system is reasonable in design and convenient to install, and is easy to replace when the rubber is aged after installation; the damping support I is arranged between a steel girder and the orbit, so that contact between meshes and the orbit is radically avoided, and the trample problem during overhauling or construction is solved; the damping supports serving as dampers consume energy inside, thus effectively counteracting the influence of wind load on an orbit antenna under severe weather and reducing the vibration frequency and times of the antenna orbit; the antenna orbit is effectively separated from the reflective net steel girder, thus avoiding resonance caused by the same frequency with the reflective net; and the damping support II prolongs the natural vibration period of the structure and reduces the vibration frequency of the structure without influencing the structural strength.

Description

technical field [0001] The invention relates to an antenna device for receiving and reflecting aircraft signals in a civil aviation system, in particular to a DVOR omnidirectional beacon reflection network antenna shock absorption system. Background technique [0002] The DVOR omnidirectional beacon reflection network is an antenna device that is indispensable for receiving and reflecting aircraft signals in conjunction with the launch equipment in the civil aviation system. It is generally built near the outside of the airport runway and on each navigation platform on the flight route, with a distance of about 300 kilometers. It is used to provide accurate position navigation information for aircraft on take-off and on the route. It works in the VHF band and uses the Doppler principle to provide the magnetic orientation information of the aircraft equipped with corresponding equipment relative to the ground equipment. [0003] The existing DVOR omnidirectional beacon reflec...

AI Technical Summary

Problems solved by technology

[0017] 1) The track is directly connected to the mesh, and trampling during construction or maintenance is likely to have a certain impact on the antenna track, causing shaking and displacement of the antenna, and affecting the accuracy of the antenna signal;

[0018] 2) In order to meet the requirements of urban planning and development, the height of the reflection net is built higher and higher, and extreme weather occurs from time to time, causing unprecedented pressure on the fixing of the antenna equipment of the reflection net. Due to the lack of effective seismic isolation measures, coupled with reflection nets, tracks, etc. The average stiffness is very large, causing a large vibration frequency and amplitude, while the existing antenna equipment requires that the vibration frequency should be less than 2HZ, and the amplitude should be less than 1 degree, which seriously affects the equipment signal and poses a challenge to aircraft navigation in bad weather.

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