Active and Passive Controls of Complex Structures With Uncertainties Under Wind Loads

风荷载下具有不确定性的复杂结构的主动和被动控制

• 批准号: 9022714
• 负责人: Adriene Jefferson
• 金额: $ 13.6万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-04-01 至 1995-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022714&HistoricalAwards=false
• 关键词: Active; Passive; Controls; Complex; Structures

A hybrid (combining passive with active) control system will be developed that incorporates a refined stochastic finite element method for the optimal control of buildings, bridges and other complex shell structures such as domes, towers, tanks and chimneys, with uncertain structural parameters and which can be exposed to random dynamic wind loads. The structural uncertainties are assumed as random in space. The wind loads are assumed as random in both time space. This development may also be applied to earthquake loads. The goal is to develop a hybrid control system that significantly improves the reliability and safety of complex structures subjected to extreme random loads produced by certain natural hazards.

混合型（结合被动和主动） 将开发控制系统， 结合了一个精细的随机有限 最优控制单元法 建筑、桥梁等复杂壳体 建筑物，如圆顶，塔，坦克和 烟囱，不确定的结构 参数，并且可以暴露于随机 动态风荷载 结构性 假设不确定性在空间中是随机的。 风荷载在两种情况下均假定为随机的 时间空间 这一发展也可能是 用于地震荷载。 目标是 开发混合动力控制系统， 大大提高了可靠性， 复杂结构的安全性 由某些 自然灾害