A5112989774- Optical Systems and Laser Technology
- Surface Roughness and Optical Measurements
- Advanced Fiber Optic Sensors
- Plasma and Flow Control in Aerodynamics
- Advanced Measurement and Detection Methods
- Inertial Sensor and Navigation
- Fluid Dynamics and Turbulent Flows
- Computational Fluid Dynamics and Aerodynamics
China Aerodynamics Research and Development Center
2023-2025
The scale of a scramjet has profound impact on its combustion characteristics, and accurately replicating the integrated coupling dynamics between an aircraft in wind tunnel tests remains significant challenge. To address critical issues natural frequency sensitivity associated with force balances large-scale model short-time measurement tests, this paper presents specialized three-component optical fiber balance designed for precise short-term models. Aerodynamic measurements are achieved...
This article proposes a new type of three-component optic fiber balance based on Fabry-Perot displacement measurement technology the structure pulse wind tunnel balance. paper systematically introduces force principle and design process conducts relevant simulation analysis experimental verification. The results show that sensor can achieve significant sensitivity to cavity length changes, when used in existing structures, gains be achieved by changing probe height without need modify...
This paper proposes a design method for wind tunnel balance that can compensate inertial interference, aiming to address the issue of short effective time in pulse tunnels. also tackles problem force measuring system’s inability dampen quickly and coupling inertia vibration signals with output signal balance, which affects aerodynamic measurement accuracy. The calculates displacement at specific positions structure using its acceleration, constructs compensation based on relationship between...