Experimental research of vibration and noise of rolling cylinder on plane
Résumé
The purpose of this experimental research is to research the noise generated by rolling surfaces. This problem is important in bearings, railroad transport and many technical applications. Experimental research was carried out in such a way that noise and vibration from any technical equipment did not interfere; only ambient vibration and noise influenced measurements. Tests were performed using specific processes, which are described in this paper. The parameters of vibrations on a steady plane and noise in the surroundings of a rolling cylinder were registered. For this purpose three series of tests with various surfaces and roughness parameters were performed. It was experimentally proved that dry and lubricated surfaces generate different noise sound frequencies. Some interesting connections between generated vibrations and sound were also found. The proposed technique can be applied to bearing noise evaluation, especially when special materials are used. Research offers useful results, which can be used to estimate noise in newly designed devices. Finally, conclusions on results are made.