Analysis and Assessment of Curving Noise Measurements
report
Curve squeal is a well known railway noise source which is complex to assess due to its statistical behaviour and many influence parameters. It is therefore not straightforward to assess its average source levels, chance of occurrence and effectiveness of mitigation measures. In previous years, measurement protocols have been proposed including the ACOUTRAIN procedure to assess curve squeal of rolling stock [6] . This includes both on board measurements to evaluate the occurrence of squeal in the network, and trackside measurements to assess the noise levels at specific locations where it occurs. Squeal noise has been the focus of many research projects in the past and is included in the
ERJU project Rail4Earth [2], with specific objectives based on current needs of involved railways. The scope of this work is Rail4Earth subtask 3.5.3 Evaluation of vehicle mitigation measures by application of new type test procedures. The starting point of this work is the test procedure proposed in the ACOUTRAIN project [1] , focusing on curves, but not switches. The type of squeal noise occurring in switches can be very different from curve squeal noise, as illustrated in this report.
ERJU project Rail4Earth [2], with specific objectives based on current needs of involved railways. The scope of this work is Rail4Earth subtask 3.5.3 Evaluation of vehicle mitigation measures by application of new type test procedures. The starting point of this work is the test procedure proposed in the ACOUTRAIN project [1] , focusing on curves, but not switches. The type of squeal noise occurring in switches can be very different from curve squeal noise, as illustrated in this report.
Topics
TNO Identifier
1016514
Publisher
TNO
Collation
94 p.
Place of publication
Delft