TY - JOUR N2 - Thin plates, in the form of individual panels or whole device casings, often separate the noise source from its recipients. It would be very desirable if the panels could effectively block the sound transmission preventing noise from further propagation. This is especially challenging to achieve at low frequencies. A promising approach, intensively developed in the recent years, is to employ active control methods by adding sensors and actuators, and running a control algorithm. However, if the noise is narrow-band, an alternative passive solution originally developed by the authors can be applied. It is based on appropriately located passive elements which can be used to alter the frequency response of the vibrating structure thus improving its sound insulation properties. Such an approach is referred to as the frequency response shaping method. The purpose of this paper is to further develop this method and apply it to a device casing panel. The efficiency of the method is evaluated by simulation and real experiments. Appropriate cost functions and mathematical models are formulated and used to optimise the arrangement of passive elements mounted to the plate, enhancing its sound insulation properties at the given frequency range. The results are reported, and advantages and limits of the method are pointed out and discussed. L1 - http://www.journals.pan.pl/Content/113234/PDF/aoa.2019.129728.pdf L2 - http://www.journals.pan.pl/Content/113234 PY - 2019 IS - No 4 EP - 738 DO - 10.24425/aoa.2019.129728 KW - structural control KW - frequency response shaping KW - vibrating plate KW - optimisation KW - modelling A1 - Wrona, Stanisław A1 - Mazur, Krzysztof A1 - Rzepecki, Jaroslaw A1 - Chraponska, Anna A1 - Pawelczyk, Marek PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 44 DA - 2019.12.31 T1 - Sound Transmission Through a Thin Plate with Shaped Frequency Response SP - 731 UR - http://www.journals.pan.pl/dlibra/publication/edition/113234 T2 - Archives of Acoustics ER -