Flutter Suppression of Long-Span Bridges Using Suboptimal Control

• 作者: Lingjun Zhuo Xinyu Xu Yunjin Dong
• 来源期刊: 世界工程和技术(英文)
• 学科: 医学
• 关键词: Aerodynamic FORCE Deck-Flap System FLUTTER SUPPRESSION Control LAW
• 年，卷（期）: 2018,（2）
• 页码范围: 34-40
• 页数: 7页
• 分类号: R73

摘要

Based on the Theodorsen’s Theory of the aerodynamic forces on wing-aileron, the Scanlan’s Theory is expanded considering a deck-flap system. It is suggested that a new forced vibration method can acquire aerodynamic derivatives of this deck-flap system theoretically. After obtaining the wind induced forces, a deck-flap equation of motion in time domain is established to investigate its control law. Numerical simulation results indicate suboptimal control law of the deck-flap system can suppress the flutter effectively, and the flutter speed can be increased for desirable purpose.