DIN 45673-7:2010-08

This standard series has been developed as characteristic values had to be determined in the laboratory to describe the static and dynamic properties of resilient elements used in railway tracks, taking into account the final assembly position, and to indicate them in the product description. This shall facilitate comparisons between various products and allow for calculation of the vibration reducing effect. It applies to all kinds of rail vehicle (tramways, underground trains, suburban trains, standard gauge railways). Furthermore, information is given on fitness for purpose tests of resilient elements and pointers on quality control within the framework of quality assurance are provided. However, requirements for the properties of systems with resilient elements are not included in this standard series. The recently published standards are revisions; the 2000 edition of DIN 45673-1 has been divided into several parts. DIN 45673-7 specifies laboratory test procedures for the determination of characteristic values of resilient elements of mass-spring systems. The standard takes into account those characteristic values which are related to the vibration reducing effect of a railway track and values which are necessary for static verification and verification with regard to railway tracks. However, as mass-spring systems present single case solutions, it is not possible to specify generally applicable load ranges for the resilient elements. This standard series has been prepared by Working Committee NA 001-03-15 AA (NALS/VDI C 15) "Schwingungsminderung in der Umgebung von Verkehrswegen" ("Reduction of vibration in the vicinity of traffic routes").