A method for autonomous induction takeoff of a space vehicle
A space vehicle and take-off time technology, applied in the direction of aerospace vehicle guidance devices, etc., can solve problems such as immaturity, inability to obtain take-off signals or sensitive take-off signals in advance or delay, and influence on correct execution of tasks, so as to improve accuracy and improve The effect of system redundancy and strong flexibility
Active Publication Date: 2016-06-29
CHINA ACAD OF LAUNCH VEHICLE TECH
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Problems solved by technology
With the increase in the diversification of aircraft missions, it is necessary to accurately obtain the take-off time to carry out active segment navigation and correctly execute follow-up timing actions. Failure to obtain the take-off signal or the advance or delay of sensitive take-off signals will cause problems for the correct execution of the mission. influences
At present, the take-off design of aircraft is mainly concentrated in the aviation field, and there is no mature experience in the application of self-sensing take-off of aircraft equipped with aircraft in the aerospace field.
Method used
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[0047] (1) The space vehicle determines the apparent acceleration overload threshold of the launch vehicle body’s take-off direction according to the theoretical take-off overload curve and take-off time of the launch vehicle carried on it. Determine the roll angular velocity threshold of the take-off direction of the carrier rocket body at all times;
[0048] Taking a certain type of launch vehicle as an example, the apparent acceleration overload threshold for determining the take-off direction of the launch vehicle body is 1.1g according to its take-off overload curve and take-off time; The angular velocity threshold is 1.5° / s.
[0049] (2) During the take-off process of the launch vehicle, the space vehicle collects the apparent acceleration A of the launch direction of the launch vehicle during the take-off process of the launch vehicle in real time through the accelerometer x1i ;
[0050] (3) During the take-off process of the launch vehicle, the spacecraft collects th...
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The invention discloses a self-inductive take-off method for a space vehicle. The method adopts the inertial device (accelerometer or gyroscope) carried by the space vehicle itself to be sensitive to the overload or rolling motion of the launch vehicle at the time of take-off, and aims at the take-off at the position of the inertial device. The mechanical environment is used to determine whether the take-off conditions are met. The invention realizes the autonomous induction take-off of the aircraft under the condition that the launch vehicle does not provide a take-off contact, and has certain flexibility.
Description
technical field [0001] The invention relates to a space vehicle autonomous induction take-off method, which can be used for the space vehicle to independently sense the take-off time of a carrier rocket, and belongs to the field of space vehicle navigation. Background technique [0002] In recent years, with the lowering of the threshold for the development of near-Earth space and the increase of the spare carrying capacity of launch vehicles, more and more space vehicles carry launch vehicles to carry out missions. During the take-off process, the launch vehicle can provide a take-off contact signal for the spacecraft carrying it, but there may also be a situation where the take-off signal is not provided under the condition of ensuring the safety of the main mission. With the increase in the diversification of aircraft missions, it is necessary to accurately obtain the take-off time to carry out active segment navigation and correctly execute follow-up timing actions. Fail...
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IPC IPC(8): B64G1/24
Inventor 李君庄学彬陈世立张耀磊晁鲁静徐弋钦李罗钢杨思亮倪越
Owner CHINA ACAD OF LAUNCH VEHICLE TECH