{"id":29,"date":"2015-09-10T17:28:33","date_gmt":"2015-09-10T15:28:33","guid":{"rendered":"http:\/\/www.rdu-gmbh.de\/neue_version\/?page_id=29"},"modified":"2015-11-10T13:10:22","modified_gmt":"2015-11-10T12:10:22","slug":"automotiver-abgasturbolader-mit-schwimmbuchsenlagerung","status":"publish","type":"page","link":"https:\/\/www.rdu-gmbh.de\/en\/portfolio\/automotiver-abgasturbolader-mit-schwimmbuchsenlagerung\/","title":{"rendered":"Automotive turbocharger with full floating bearings"},"content":{"rendered":"

A turbocharger fo\"erg_emd_ifme_atl_100k_v1_post_neu_date_2014_12_19_time_14_43_16_wei\u00df\"r a light-duty commercial vehicle is ramped up to 150,000 rpm. During run-up sub-harmonic oscillations occur, which are excited by the circulating oil. The amplitudes of the subharmonic vibrations are significantly greater than the unbalanced \"\"<\/a>vibrations.<\/p>\n

The jump frequencies and the amplitudes of the sub-harmonics depend on the geometry and the bearing clearance of the floating ring. The complete solution of the fluid film equation taking into account the misalignment and the oil supply conditions can be a very good predictor of the amplitudes and the jump frequencies. See also the examples in following publications:<\/p>\n

\u201eNumerical simulation of the dynamic behaviour of turbochargers under consideration of full-floating-ring bearings and ball bearings\u201c<\/a><\/p>\n

\u201eNumerische Simulation des instation\u00e4ren Verhaltens der Schwimmbuchsenlagerung in Turboladern\u201c<\/a><\/p>\n

\u201eNumerical run-up simulation of a turbocharger with full fl<\/a>oating rin<\/a>g bearin<\/a>gs\u201c<\/a>.<\/p>\n

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