Beamforming System with Acoustical Array, and its Accessories for the Noise Source Mapping of Various Modes of Transportation
Specifications
Major Functions / Key Features
- Mapping the entire rail vehicle or specific sections allows for distinguishing between aerodynamic noise and rolling noise generated by the interaction of the wheels with the rails and rail sleepers. Smaller components, such as the pantograph, can be specifically targeted, and their sound power contribution can be calculated, enabling users to easily prioritize areas based on their significance.
- Identifying key noise sub-sources, such as inter-coach gangways, in terms of their position, frequency content, and sound power radiation, aids in determining where design modifications can most effectively reduce overall noise radiation. This can either lower noise levels or optimize their content and propagation.
Location
ZN1106
Restriction
- Only trained PolyU users with compatible software, BZ-5939, can use the system
- The system should be used on campus unless approval is granted by department
- Replacement cost value (RCV) equipment insurance should be purchased before using the system
Fee
On enquiry basis
Other Information
Manufacturer: Hottinger Brüel & Kjær
Model: WA-1676-W-002- 5-arm
Category: Civil engineering - incl. construction engineering and management
Owned by: Department of Civil and Environmental Engineering
Contacts
Dr SK Lai
Department of Civil and Environmental Engineering
- 27666060
- sk.lai@polyu.edu.hk
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