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Active structural acoustics control of beams using active constrained layer damping through loss factor maximization

机译:通过最大损耗因子的有源约束层阻尼对梁进行有源结构声学控制

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摘要

Vibration and acoustic control of beams with classical boundary conditions using active constrained layer damping is presented. The control input that maximizes the loss factor of the active constrained layer damping is determined through taking the first variation of the loss factor with respect to the control input. Although the loss factor is a positive definite quantity, the first variation yields control input that maximizes the factor. The resulting control input significantly reduces the vibration and acoustic response of the beams at their resonant frequencies. (c) 2004 Elsevier Ltd. All rights reserved.
机译:提出了使用主动约束层阻尼的经典边界条件下梁的振动和声学控制。通过获取损耗因数相对于控制输入的第一变化来确定使主动约束层阻尼的损耗因数最大的控制输入。尽管损耗因子是一个正的确定量,但是第一个变化会产生使该因子最大化的控制输入。最终的控制输入将大大降低光束在共振频率下的振动和声学响应。 (c)2004 Elsevier Ltd.保留所有权利。

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