GB/T 44821.2-2024 in English
VALIDTechnical requirements for stratospheric airship—Part 2:Propulsion system
- Issued on:2024-10-26
- Implemented on:2025-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$262.00
| Standard No: | GB/T 44821.2-2024 |
| Document status: | VALID |
| Title in English: | Technical requirements for stratospheric airship—Part 2:Propulsion system |
| Title in Chinese: | 平流层飞艇通用技术要求 第2部分：推进系统 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-10-26 |
| Implemented on: | 2025-05-01 |
| ICS Classification: | 49.050-Aerospace engines and propulsion systems |
| Chinese Classification: | V40-Electrical system and equipment |
| Professional Classification: | GB-National Standard |
| Related Keywords: | propulsion system
stratospheric airship part technical requirements general technical requirements definitions propulsion system |
《GB/T 44821.2-2024平流层飞艇通用技术要求 第2部分：推进系统》由TC435（全国航空器标准化技术委员会）归口，TC435SC2（全国航空器标准化技术委员会浮空器分会）执行，主管部门为国家标准委。
Introduction
In-depth interpretation of GB/T44821.2—2024 "General Technical Requirements for Stratospheric Airships Part 2: Propulsion System"
| Standard Dimensions | Specific Requirements | Implementation Suggestions |
|---|---|---|
| Composition | The propulsion system includes thrust subsystem, power subsystem, safety protection subsystem and status monitoring and alarm subsystem. | The modularity and interchangeability of each subsystem should be ensured during design to facilitate maintenance and upgrade. |
| Performance | Performance indicators such as thrust, control torque, and power must meet specific requirements. For example, the rated thrust should enable the airship to maintain a uniform speed at the designed airspeed. | It is recommended to conduct dynamic tests in actual applications to ensure the stability of the system under different working conditions. |
| Safety | Each motor, pitch change mechanism or tilt mechanism is independent and equipped with emergency protection measures and clear fault information output. | It is recommended to conduct safety drills regularly to ensure that operators are familiar with emergency procedures. |
Professional Application of Terms and Definitions
Propulsion System: The general term for all devices that provide the propulsion required for the flight of a stratospheric airship. Its core functions include power output and attitude control.
For example, under the design airspeed conditions, the rated thrust of the propulsion system should ensure that the airship can fly at a constant speed with the highest cruising efficiency, while the peak thrust is required to cope with the rapid acceleration requirements in unexpected situations.
Background of Standard Formulation and Analysis of Technical Evolution
With the rapid development of stratospheric airship technology, the technical requirements for propulsion systems have also increased. Based on GB/T1.1-2020, this standard combines international advanced experience and focuses on key factors such as safety, reliability and environmental adaptability.
Implementation Suggestions
Design and Manufacturing Phase
- Adopt modular design to ensure the independence and interchangeability of each subsystem.
- Give priority to the combination of lightweight and high strength in material selection.
- Carry out comprehensive environmental adaptability tests, including performance verification under extreme conditions such as high and low temperature and low pressure.
Use and Maintenance Phase
- Establish a complete monitoring system to collect key parameters in real time and analyze them.
- Regularly check and replace wearing parts to ensure the long-term reliability of the system.
- Develop detailed emergency plans and provide quick response measures for common failures.
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