Research Initiation: A Study of the Optimal Number of Location of Control Forces for Active Vibration Control of Contained Acoustic Fields

研究启动：封闭声场主动振动控制控制力位置的最佳数量研究

• 批准号: 8810384
• 负责人: James Jones
• 金额: $ 6.9万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-09-01 至 1991-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8810384&HistoricalAwards=false
• 关键词: Research; Initiation; Study; Optimal; Number

Noise control for enclosed spaces continues to be a very important topic. Traditional passive techniques are often not feasible because of the inherent excessive weight penalty associated with the method. This is particularly true for aircraft or spacecraft environments. Recently, active control methods have received more attention and early results are promising. This project extends this active control thrust. It investigates the fundamental problem of controlling the noise within a cylindrical shell by applying control forces to the shell wall in order to reduce particular vibration modes associated with transmitting acoustical energy into the enclosed cavity.

封闭空间的噪音控制仍然是一个非常重要的 话题 传统的被动技术往往不可行， 与该方法相关的固有超重惩罚。 这对于飞机或航天器环境尤其如此。 近年来，主动控制方法受到越来越多的关注， 初步结果令人鼓舞。 该项目扩展了这一活动 控制推力 它研究的基本问题是 通过施加控制来控制圆柱形壳体内的噪声 为了减少特定的振动， 与将声能传输到 封闭腔