GrabCAD 模型信息
Sabot-Drogue · 模型 45241
The deployment system consists of a "sabot-drogue", similar to a flight refueling drogue. The process begins with a servomotor releasing a safety pin. A spring then ejects the sabot a short distance, exposing its stabilizing ring to the supersonic airflow. At the same time, the sabot's gyroscopic wheels begin to spin, providing roll stability. Deployment Process Preparation: The model is safely secured within a Haack cone-shaped aero-shell, reaching deployment speed during freefall. Initial Ejection: The flight control computer sends a signal to activate the servomotor, which releases the pin. A spring pushes the sabot out about 100 mm, allowing its aerobrake to be exposed to the supersonic flow at the aft edge. Simultaneously, the gyroscopic rotors are exposed to the same flow, acquiring the spinning motion that gives them roll stability. The clamps holding the model in place are unlocked as the sabot leaves the aft end. Controlled Deployment: The now-stable sabot moves away from the aero-shell as a winch-controlled reel unwinds a fishing line. The same motor that initially released the safety pin controls the line's tension using a friction brake. This tension is crucial for providing pitch and yaw stability to the sabot and the model it carries. Distance Control: The servomotor allows for a controlled deployment, which can be parameterized by two variables: the line tension and its length, with the latter defining the safe deployment distance. Final Separation: When the line runs out, the tension increases sharply. The model's inertia completes its separation from the sabot, fully opening the already unlocked clamps. Once free, the model continues its flight independently.
- 格式
- STL、STEP / IGES、Rendering、Other
- 分类
- Aerospace、Aviation、Tech
- 标签
- nasa_freeflighttestplatform
- 数据更新
- 2026-09-25T16:31:05Z
