Carrier rocket structure
The components of the launch vehicle are the arrow body, the powerplant system and the control system. These three systems are called the main system of the launch vehicle. In addition, the arrow is equipped with a telemetry system, an external measurement system and a safety control system.
1.Arrow body
It is the base of the launch vehicle. It is used to maintain the shape of the rocket, to withstand the rocket's ground transportation, launch operations and various loads acting on the rocket during flight. Install all the instruments and equipment that connect the rocket's systems and put all the arrows on it. System and component connections are combined into one.
2. Powerplant system
It is a device that pushes the launch vehicle to fly and obtain a certain speed. For liquid rockets, the powerplant system consists of a propellant delivery, a booster system, and a liquid rocket engine.
3. Control system
It is used to control the part of the launch vehicle that is normally and reliably flying along a predetermined orbit. The control system consists of three parts: guidance and navigation system, attitude control system, power supply and distribution, and timing control system.
4. Telemetry system
The function is to measure the working parameters and environmental parameters of each system in the flight of the launch vehicle, and send these parameters back to the ground through the radio transmitter on the launch vehicle, which is received by the ground receiver; the measured parameters can also be recorded in the launch vehicle. On the magnetic recorder, the magnetic recorder is recovered on the ground. These measurement parameters can be used to predict the orbital parameters of a spacecraft when it is in orbit, and to identify and improve the performance of a launch vehicle. Once the launch vehicle fails during flight, these parameters are the basis for fault analysis.
5. External ballistic measurement system
The function is to use the ground optical and radio equipment to track the in-flight launch vehicle together with the corresponding device mounted on the launch vehicle, and measure its flight parameters to predict the orbital parameters of the spacecraft when it is in orbit. It can also be used as Identify the accuracy and failure analysis basis of the guidance system.
6. Security system
The utility is that when the launch vehicle cannot continue to fly in the event of a flight failure, it will be blown up in the air to avoid catastrophic damage to the ground when the launch vehicle falls. The security system consists of a self-destruct system on the launch vehicle and a radio safety system on the ground. The self-destruct system on the arrow consists of a measuring device, a computer and an explosive device. When the launch vehicle's flight attitude exceeds the allowable range, the computer issues an instruction to detonate the explosive device, causing the launch vehicle to self-destruct in the air. The radio safety system measures the flight orbit of the launch vehicle by the ground radar. When the flight of the launch vehicle exceeds the pre-specified safety range, the ground launches an instruction to detonate the explosive device on the arrow. After receiving the receiver on the arrow, the rocket is Air blown up.
7. Aiming system
The utility is to give the launch vehicle an initial orientation prior to launch. The aiming system consists of a ground sighting device and a sighting device on the launch vehicle.