分层次教学的初步实践

在中等专业学校当前面临的诸多办学困难中,学生素质参差不齐、整体素质下降明显,从而导致传统的中专教学模式不适应的问题已日渐突出.怎样在当前的情况下,既能使每一个学生都得到全面发展,成为适应生产、建设、管理、服务第一线岗位要求的劳动者,保证教学质量的稳定与提高,又能确保办学效益,保持学校持续稳定发展?我校的做法是:实行多层面多方位的分层次教学.     

Aircraft Landing Gear Control with Multi-Objective Optimization Using Generalized Cell Mapping

This paper presents a numerical algorithm tuning aircraft landing gear control system with three objectives,including reducing relative vibration, reducing hydraulic strut force and controlling energy consumption. Sliding mode control is applied to the vibration control of a simplified landing gear model with uncertainty. A two-stage generalized cell mapping algorithm is applied to search the Pareto set with gradient-free scheme. Drop test simulations over uneven runway show that the vibration and force interaction can be considerably reduced, and the Pareto optimum form a tight range in time domain.