Negative pressure variant airship based on shape memory alloy temperature control deformation and control method

Abstract

The invention discloses a negative pressure variant airship based on shape memory alloy temperature control deformation and a control method. The negative pressure variant airship comprises an air bag, a keel framework, a pod, a flexible solar cell and a flexible electric heater. The keel framework is arranged in the air bag and used for supporting the air bag; the keel framework is made of a shape memory alloy material; the flexible solar cell covers the outer surface of the air bag; the flexible electric heater is used for heating the keel framework; the pod is arranged at the bottom of the air bag, and a storage battery is placed in the pod and connected with the flexible solar cell and the flexible electric heater. The shape memory alloy material is adopted to serve as the keel framework of the airship, the one-way or two-way memory characteristic of the shape memory alloy in the temperature changing state is effectively utilized, the variation of the airship can be achieved by controlling the temperature of the keel framework, and then the airship can lift off, adjust the posture, recover and the like. In the airship variation process, solar energy is effectively used as a functional device, and therefore the weight of the airship is greatly reduced.

Description

technical field [0001] The invention relates to the field of aerostats, in particular to a negative pressure variant airship based on temperature-controlled deformation of a shape memory alloy and a control method. Background technique [0002] An airship is a kind of aerostat, which is an aircraft that uses a gas lighter than air to provide lift. It generally consists of a streamlined hull, a pod carrying a load, an empennage for stability control, and a propulsion device. Generally, from a structural point of view, airships can be divided into three types: rigid airships, semi-rigid airships and soft airships. [0003] The idea of ​​negative pressure or vacuum airship was proposed as early as the 1770s. Charles P Burgess of the United States proposed in 1927 that based on the development level of material science at that time, it was impossible to design and manufacture vacuum balloons or vacuum airships. There is a pressure difference between the inside and outside of th...

AI Technical Summary

Problems solved by technology

In order to complete the task execution and recovery, the battery needs a large storage capacity, so the volume and weight of the battery will increase, which will increase the weight of the airship and increase the required lift.

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