抑制围护结构振动的流线体、设备、吊装塔筒的方法

• Format: Patent
• Language: Chinese
• Published: 23.10.2018
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

本发明公开种抑制围护结构振动的流线体、设备、吊装塔筒的方法，所述流线体环绕所述围护结构，且所述流线体具有流线形的前缘，所述前缘能够朝向上风向来流，以使所述上风向来流形成正攻角和/或负攻角。本方案在围护结构上环绕流线体，上风向来流绕流围护结构与流线体接触时，获得气动外形的变化，空气动力系数C变小，减小振动；且气流方向和路径发生了变化，破坏了流线体附近上风向气流的相关性，打乱了流线体和其他位置气流旋涡脱落频率的致性，从而使得它们共同作用削弱，降低或阻止了围护结构外表面边界层绕流脱体时涡激共振响应，也就阻止了围护结构涡激诱发的振动。 A streamlined body, apparatus for suppressing vibrations of an enclosure, and a method for hoisting a tower are provided. The streamlined body surrounds the enclosure, and the streamlined body has a streamlined leading edge. The leading edge can faces towards the upwind incoming flow, to allow the upwind incoming flow to form a positive attack angle and/or a negative attack angle. In this solution, the enclosure is surrounded by the streamlined body, and when the upwind incoming flow flows around the enclosure to come into contact with the streamlined body, the aerodynamic configuration is changed, and the aerodynamic coefficient C becomes small, thus the vibrations are reduced. Moreover, the direction and path of the airflow are changed, which di