Flexible antenna system fluid shock absorbing and attitude regulating technology

Abstract

The related technical improvement for flexible cable traction system by oil ring device refers to the fluid vibration damping and attitude regulation for flexible antenna system. In prior art, the position and attitude control for antenna can only realized in small-scale, and lies in the means of hydraulic cylinder, gear box and rotary joint. All those rigid structure are too bulk to move in large scale. In this invention, around the feeding device 1, using joint bar 8 to connect with oil ring 2, and filling oil 2 in the ring 2. The inclined angle in this invention can come up to 60deg. It can also inhibit the torsional vibration of feeding device efficiently.

Description

1. Technical field [0001] The invention relates to the technical improvement of the flexible cable traction system using the oil ring device, that is, the fluid vibration reduction and posture adjustment technology of the flexible antenna system. 2. Background technology [0002] At present, the pose control of the antenna is still realized in a small range, and the means of realization are through the movement of rigid structures such as hydraulic cylinders, gearboxes and rotary joints. Since these rigid structures are very bulky, large ranges of motion cannot be achieved. One solution is to use a parallel flexible cable index feed device for large-scale spatial movement, but the shortcoming of this flexible cable parallel mechanism is that it is difficult to make the feed device tilt at a large angle at the boundary of the working space, and Due to the traction form of the flexible cable, the torsional stiffness of the feed device is very weak, and torsional vibration is ...

AI Technical Summary

Problems solved by technology

Since these rigid structures are very bulky, a wide range of motion cannot be achieved

One solution is to use a parallel flexible cable index feed device for large-scale spatial movement, but the shortcoming of this flexible cable parallel mechanism is that it is difficult to make the feed device tilt at a large angle at the boundary of the working space, and Due to the traction form of the flexible cable, the torsional stiffness of the feed device is very weak, and torsional vibration is easily generated during the system movement

But the disadvantage is that it will significantly increase the construction cost of the system, because the cost of each supporting tower and driving equipment is very large

At the same time, the introduction of redundant drives will make the design of the entire system control strategy very difficult

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