A system and method for verifying parachute opening strength of infinite mass
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A parachute and quality technology, applied in the aerospace field, can solve problems such as unsuitable parachutes, and achieve the effect of accurate data
Active Publication Date: 2021-06-11
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology
However, due to the limitation of the size of the existing domestic wind tunnel, it is not suitable for larger parachutes
Method used
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Embodiment 1
[0055] Refer figure 1 A structural diagram of the embodiment of the present invention provides a system for verifying the intensity of parachute unlimited quality, including: airdrop model, fire device, control device, measuring device, parachute device, air-proof model and helicopter (eg figure 2 The connection is connected, consisting of the front cabin and the test umbrella.
[0056] The parachute device includes an experimental umbrella and a main umbrella, and the test umbrella is pre-installed in the test umbrella, which is pre-installed in the front cabin.
[0057] The control device includes a machine on a machine and a composite recovery control device, and the recovery control device includes a vacuum tube.
[0058] The fireworks can be used to complete the delivery of the airdrop model, the test umbrella compartment and the front chamber connection and separation.
[0059] The machine on the machine can be used to control the delivery of the airdrop model.
[0060] The r...
Embodiment 2
[0084] Refer Figure 7 The step of the step of verifying the strength of the intensity of the intensity of the parachute unlimited quality of the present invention may include:
[0085] After the connection of the airdrop model and the helicopter, the manual switch of the measurement device and the recovery control device is opened, and the measuring device is activated;
[0086] Control the helicopter by the fire device to control the air-contact model;
[0087] After the airdrop universal controller starts 0.2s, a delayed umbrella command is issued;
[0088] After the steady umbrella is detached, it is judged whether or not the dynamic pressure measurement of the vacuum tube satisfies the implantation requirements of the experimental umbrella;
[0089] When the paraleric pressure satisfies the immersion mode of the experimental umbrella, the test umbrella instructions are issued by a general controller, and the test umbrella air is expanded;
[0090] After the first preset time o...
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Abstract
The embodiment of the present invention provides a system and method for verifying the opening strength of a parachute with infinite mass. The system includes: the airdrop model is connected with the helicopter, and consists of the front cabin and the test parachute; the parachute device includes the test parachute and the main parachute, the test parachute is pre-installed in the test parachute, and the main parachute is pre-installed in the front compartment; the control device includes the on-board Launch control device and on-board recovery control device. The on-board recovery control device includes a pitot tube. The pyrotechnic device is used to complete the release of the airdrop model, and the connection and separation of the test umbrella cabin and the front cabin; the on-board launch control device is used to control the airdrop The release of the model; the recovery control device on the cabin is used to realize the recovery control of the airdrop model; the measuring device is used to measure the flight altitude and true air speed of the airdrop model; the pitot tube is used to measure the parachute opening dynamic pressure of the test parachute. The invention can make the obtained parachute opening load data more accurate, thereby achieving the purpose of verifying the strength of parachute opening conditions with infinite mass.
Description
Technical field [0001] The present invention relates to aerospace technology, in particular, a system and method for verifying the intensity of parachute unlimited quality. Background technique [0002] In the aerospace sector, parachute is an important pneumatic deceleration and stabilizing device, made of soft and breathable special textile materials, with a larger resistance area after inflation, which can greatly reduce the speed of recycling load, while recycling The load provides a certain stability. [0003] The parachute of parachute is divided into unlimited quality of umbrella and limited quality. Under the conditions of two types of umbrella, the stress state of the parachute is different. In the event of an unlimited quality, the boom is generally present in the instant of the umbrella coated, and all the umbrella load is borne by the umbrella. The maximum stress appears near the top hole and the beach area; In the process, the peak of the umbrella is in the inflation...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): B64D21/00
CPCB64D21/00
Inventor 鲁媛媛张兴宇张亚婧李健房冠辉王立武吕智慧贾贺黎光宇王帝李烨朱维亮张章王文强郭李杨
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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