Pneumatic muscle parachute harness deformable parachute for accurate airdrop

Abstract

The invention relates to a pneumatic muscle parachute harness deformable parachute for accurate airdrop. The traditional airdrop parachute accurate airdrop system is complicated and has high cost and low precision. In the invention, a parachute harness net is arranged on the inner surface of a parachute canopy; the parachute harness net comprises a plurality of parachute harnesses; the junctions of the parachute harnesses are provided with parachute harness connecting pieces fixed on the parachute canopy; the parachute harnesses are divided into multiple parachute harness sections by the parachute harness connecting pieces; all the parachute harness sections are connected in series with asymmetric wall thickness structure pneumatic muscles for adjusting the lengths of the parachute harnesses; the gas input of the pneumatic muscles is controlled by a control unit; and a global position system (GPS) module, an air speed sensor and a landing speed sensor are respectively connected with the control unit. The invention has a simple structure, is convenient to regulate and can be used for carrying out real-time regulation on the landing speed and a landing posture.

Description

technical field [0001] The invention relates to a parachute, in particular to a deformable parachute with an aerodynamic muscle umbrella belt. Background technique [0002] The parachute is mainly composed of canopy, guide parachute, parachute rope, parachute opening parts and parachute bag. When airdropping, the location of the landing point depends on the trajectory of the airdropped parachute and environmental factors such as wind speed and wind direction. Airdrops are greatly affected by the wind. Usually, the flying height of the airdrop transport plane should be lower than 660 meters. Otherwise, the airdropped supplies will be scattered everywhere, but the flying height is too low, and there is a danger of being shot down by the ground air defense. . [0003] The traditional airdrop operation uses a ballistic circular umbrella system, which cannot be manipulated after being dropped because there is no active deformation device. Precision airdrop systems have been ex...

AI Technical Summary

Problems solved by technology

[0008] The actuators used, such as motors, propeller engines, etc., consume a lot of energy, are heavy and costly;

[0009] The adjustment method adopted has a limited amount of adjustment. For example, AGAS uses aerodynamic muscles to adjust the length of the paracord, and indirectly adjusts the deformation of the canopy, and the adjustment amount is limited;

[0010] The adjustment method used is complicated, such as RAD needs to use multiple different umbrellas, and the operation is complicated; it focuses on the control of the landing attitude, and less consideration is given to the control of the landing speed

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