MODEL FOR RESEARCH vibration-damping properties of structural materials using the measurement setup BENCH TYPE 'Oberst'

摘要

The invention relates to the field of noise of vehicles and power plants, and is designed to determine the vibration-damping properties of structural polymeric materials not having ferromagnetic properties are used as structural parts for vehicles and components and power plants. The utility model is a model for research vibration-damping characteristics of the materials (sample) having no ferromagnetic characteristics, using the measuring installation type Metal "Oberst".; The sample contains cantilever- mounted, dynamically excited, flexural oscillating bearing plate.; The distinguishing feature is that the plate is made of a predetermined polymeric investigated structural, non-ferromagnetic material on the free loose end portion which is adhesively mounted fragment metal plate having ferromagnetic properties, the thickness b which is 0.1 ... 0.2 The thickness of the carrier plate , its length I - does not exceed 0.008 ... 0.009 length L free end portion of the carrier plate, the width k of the metal plate piece is 0.8 ... 1.0 By width of the carrier plate, and the mass ratio of s metal plate moiety to the weight carrier plate - does not exceed 0.01. Furthermore, at least one of the sides of the free loose end portion of the carrier plate may be adhesively secured layer of vibration damping material investigated.; Utility model allows using the "Oberst," determine vibration damping properties of structural polymer having no ferromagnetic properties of constructional materials and evaluate their additional vibrodempfirovaniya, for example by applying them to the surface layers of materials substances as additional vibration-damping coating (laminate).; 1N. and 1 z.p.p. f ly-7-yl.