This paper introduces the research and design of a certain type of UAV optical electronics sensors battle operation training laboratory based on VR technology. It expatiates the function and structure of the lab. The lab can solve the critical problems faced by present real UAV equipment battle education training and improve training effect distinctly. The lab also can help cadets to inquire and learn more knowledge and skill effectively.

High-speed dynamic balance is a main method to solve the problem of exceeding the aero engine vibration limit. However, with the development of techniques of high performance engine, the rotating speed of a rotor becomes more and more high, which turns into a challenge to balance it. Therefore, balancing the rotor with high speed effectively is very important. How effective the engine rotor of high speed dynamic balance is very important.

For the blades of the small wind turbine working under the conditions of Low-Reynolds, the air viscosity has relatively great influence on them. The design and calculation on thickness of airfoils were studied in order to raise its life and reduce weight. In the premise of strength, the lighter, the better. This paper studied the aerodynamic performance of the airfoil under the Low-Reynolds and analyzed fluid-structure interaction effect at Reynolds number 600,000 under three different attack angles. The numerical simulation approach addresses unsteady Reynolds-averaged N-S solutions and covers transition prediction for unsteady mean flows. The computational result and the analysis show that the fluid-structure interaction is an important issue to consider while designing the wind turbine blade. The results may provide technical reference for the further wind turbine design.