20.500.12556/RUL-138802 Estimation of the frequency response functions for operational assemblies using independent source characterization In noise and vibration engineering, a structure’s passive dynamic properties are often evaluated in terms of its frequency response functions (FRFs). The typical FRF measurement campaign consists of controlled structure excitation and the capturing of its response. However, exploiting operational excitation for FRF acquisition is not feasible, with many sources simply too complex to model or measure directly. In the present paper, an alternative approach is proposed for an indirect FRF estimation of a system in operation, in which the source is characterized independently of the final assembly. To overcome the issue of the unmeasurable excitation force, transfer path analysis (TPA) methods are proposed. TPA replicates the source excitations using the set of equivalent or pseudo forces that are an inherent property of the source. The assembly’s FRFs are then evaluated on the basis of receiver responses and pre-determined pseudo forces for independent operational load cases at the source. Thus, a single source description can be applied to estimate the FRFs of any assembly with an identical source and arbitrary passive side. frequency response function source characterization transfer path analysis operational excitation force transferability frekvenčna prenosna funkcija karakterizacija vira vzbujanja analiza prenosnih poti obratovalno vzbujanje prenosljivost obratovalne sile true false true Angleški jezik Slovenski jezik Članek v reviji 2022-08-18 12:53:30 2022-08-18 12:53:33 2022-09-15 04:17:12 0000-00-00 00:00:00 2023 0 0 14 str. Vol. 182, art. 109542 Jan. 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-07-15 2024-07-15 534.141 0888-3270 10.1016/j.ymssp.2022.109542 118438147 Ocepek_..._-Estimation_of_the_frequency_response_functions_for_operational_assemblies_using_independent_source_characterization.pdf Ocepek_..._-Estimation_of_the_frequency_response_functions_for_operational_assemblies_using_independent_source_characterization.pdf 1 9312431B1EFE9F207F5C48BDA816FCF2 5b2c610f851e4eece53432beee49192192047bb1d227df4eb2fd213e466d02d7 340ac37d-1ee5-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159255 https://www.sciencedirect.com/science/article/pii/S0888327022006410 1 fe366b49-1ee3-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159254 Fakulteta za strojništvo 0 0 0