UAV body made of composite material and its preparation method

Abstract

The invention provides an unmanned aerial vehicle body prepared from a composite material, and a preparation method thereof. The unmanned aerial vehicle body comprises an airframe and a wing group, wherein the wing group comprises a main wing and a tail wing arranged on two sides of the airframe respectively; two sides of the main wing are connected with a first or second side wing; materials of the airframe and the wing group are of a laminated structure; the material of the airframe comprises first carbon fiber cloth, second carbon fiber cloth, first polyvinyl chloride cloth and third carbon fiber cloth which are sequentially connected in a laminated manner; materials of the main wing and the first and second side wings respectively comprise first carbon fiber cloth, first polyvinyl chloride cloth and second carbon fiber cloth which are sequentially connected in a laminated manner; a material of the tail wing comprises first carbon fiber cloth, first polyvinyl chloride cloth and second carbon fiber cloth which are sequentially connected in a laminated manner. The composite material used for the airframe and the wings of the unmanned aerial vehicle body is light, the tensile strength and tear resistance of the materials of the airframe and the wings are improved, and the structural strength of the unmanned aerial vehicle can be ensured.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to an unmanned aerial vehicle body made of composite materials and a preparation method thereof. Background technique [0002] At present, with the development of informatization, UAVs are widely used in the fields of earthquake relief, small-scale battlefield reconnaissance, and strike effect evaluation. Light weight, miniaturization, long endurance and high safety are the distinctive features and technological development directions of UAVs that distinguish them from manned ones. [0003] Most of the existing drones are made of polystyrene foam or balsa wood skin plus FRP. If polystyrene foam is used, the polystyrene foam needs to be cut in the process of forming the curved surface of the fuselage. Faced with high requirements and time-consuming cutting process, the preparation cost of the UAV body is increased. At the same time, the foam is easily co...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing drones are made of polystyrene foam or balsa wood skin plus FRP. If polystyrene foam is used, the polystyrene foam needs to be cut in the process of forming the curved surface of the fuselage. Faced with high requirements and time-consuming cutting process, the preparation cost of the UAV body is increased. At the same time, the foam is easily corroded by glue, and after forming, it is easy to absorb water and get damp, resulting in deformation of the shape and reducing the strength of the UAV structure; If it is made of balsa wood skin and FRP, the material is relatively thick, resulting in excessive weight of the body after molding, which seriously reduces the load capacity of the drone, and the parts are relatively fragile in low temperature environments and are easily damaged during use.

Images