Results 21 to 30 of about 400,889 (304)
Sound transmission loss: Comparison of conventional techniques with sound intensity techniques
The Journal of the Acoustical Society of America, 1985 Sound transmission losses for a single layer wall are measured in a reverberation room facility using conventional methods (ASTM E90) and the more recently introduced sound intensity method. The specimen is placed in five positions in the tunnel between the two reverberation rooms and measurements are made for four different absorptive conditions in ...
Halliwell, R. E., Warnock, A. C. C.
openaire +3 more sources
Predicting the sound insulation of plywood panels when treated with decoupled mass loaded barriers [PDF]
, 2015 The addition of mass loaded barriers can be used to improve the sound transmission loss properties of lightweight panels. Decoupling of the mass layer from the panel is achieved using a layer of open celled foam. This treatment causes the panel system to
Davy, J, Pearse, J, Wareing, R
core +1 more source
Recent Advances in the Sound Insulation Properties of Bio-based Materials
BioResources, 2013 Many bio-based materials, which have lower environmental impact than traditional synthetic materials, show good sound absorbing and sound insulation performances. This review highlights progress in sound transmission properties of bio-based materials and
Xiaodong Zhu +3 more
doaj +1 more source
A NOTE ON METHODS FOR THE ESTIMATION OF THE AIRBORNE SOUND INSULATION OF TIMBER FRAME STRUCTURES [PDF]
Civil Engineering Journal, 2016 Acoustic behavior of structures with wooden elements is nowadays of great interest. At the same time, the estimation of the airborne sound insulation of timber frame structures is a complex procedure which includes the prediction of several resonances ...
Jan Šlechta
doaj +1 more source
An approach on the vibro-acoustic properties of composite sandwich plates with foam core
Vietnam Journal of Mechanics, 2022 In this paper, an approach is proposed and presented to tackle the vibro-acoustic properties of finite clamped composite sandwich plates with foam core.
Tran Ich Thinh
doaj +1 more source
Empirical prediction of traffic noise transmission loss across plenum windows [PDF]
, 2019 A parametric study on the traffic noise transmission loss across plenum windows was carried out experimentally in this investigation in an attempt to establish a simple empirical model for predicting this transmission loss. A total of fourteen full scale
Lau, K.K. +3 more
core +1 more source
International Journal of Naval Architecture and Ocean Engineering, 2014 : Insertion loss prediction of large acoustical enclosures using Statistical Energy Analysis (SEA) method is presented. The SEA model consists of three elements: sound field inside the enclosure, vibration energy of the enclosure panel, and sound field ...
Hyun-Sil Kim +3 more
doaj +3 more sources
, 2012 This paper analyzes the possibility of increasing the acoustic transmission loss of sound transmitted through planar or curved glass shells using attached piezoelectric macro fiber composite (MFC) actuators shunted by active circuits with a negative ...
Mokry, Pavel +2 more
core +1 more source
Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer [PDF]
, 2022 Noise is an existing problem that exist in the environments produced from vibrating sources. In general, the common solutions for noise control are: (1) redesigning the system the system for instance increasing wall thickness or stiffening structures,
Ghazali, Mohd Hafiz +6 more
core
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source