Axial turbomachine with reduced pressure pulsations excited by and emit BLADES VIBRATION NOISE

摘要

u043eu0441u0435u0432u0430u00a0 u0442u0443u0440u0431u043eu043cu0430u0448u0438u043du0430 with low pulsations u0434u0430u0432u043bu0435u043du0438u00a0, exciting vibration and the radiated noise of blades, u0441u043eu0434u0435u0440u0436u0430u0449u0430u00a0 group or a group of "fixed crowns in the crown - crown - stationary u0432u0440u0430u0449u0430u044eu0449u0438u0439u0441u00a0 crown "and / or" u0432u0440u0430u0449u0430u044eu0449u0438u0439u0441u00a0 crown - crown - crown "u0432u0440u0430u0449u0430u044eu0449u0438u0439u0441u00a0 stationary compressor and / or u0442u0443u0440u0431u0438u043du043du043eu0433u043e type u043eu0442u043bu0438u0447u0430u044eu0449u0430u00a0u0441u00a0 however,that the number of extreme crowns in each group or individual groups are equal or u043au0440u0430u0442u043du044b and their mutual district location u043eu043fu0440u0435u0434u0435u043bu00a0u0435u0442u0441u00a0 value parameter = * from the conditions of the;where is the relative angular displacement extreme crowns group;;overall a period of extreme crowns group;;f - standard deviation from the time u043eu0441u0440u0435u0434u043du0435u043du043du043eu0433u043e u0437u043du0430u0447u0435u043du0438u00a0 at period t = / vector aerodynamic force on the blade intermediate the apex and u043eu043fu0440u0435u0434 u0435u043bu0435u043du043du043eu0439 u0434u043bu00a0 any values according to the experiment or calculation of the periodic u0442u0435u0447u0435u043du0438u00a0 through the crowns group;;- u0443u0433u043bu043eu0432u0430u00a0 speed u0432u0440u0430u0449u0435u043du0438u00a0 secondary thorns on the extreme crowns group.