? ? ? ? ? ?$0(6LP? ?* 1TtP? ?33?3?3? ?3333333?7?3)! I7? $0(6LP?$0(6LP?EDU? ? ? ? ? ? ? ? 3 ?$0(6LP? ? ?02?$0(6LP? 5 ?V I?O?D?E?OVO ?PP O ?V O?tP068?EDU !068tP?EDU?PP ?)“#$ I7?7?)“#!$?0150707?N? ? ? ?%? ? 490bar?;. 09?)/9? ? :?: A B C-?CDE1.F.G?1?=H./?.I-?VXV?S ,BM1C_ . 0 , 2 ?;) 0 ?./9? ./?F39b c?1.; :?)D2?.d : A.B )-2? .SK9; 1)J 8?F;)K?; : A)3e39Vc?CHARACTERISTIC ANALYSIS OF THE NOZZLE- ADJUSTMENT FOR A CERTAIN AERO-ENGINE Abstract: AMESim is a object oriented simulation software used in control system, this paper use AMESim to model, simulate and characteristic analyse for the import of engine nozzle-adjustment. By the simulation, we get some important inner control-curve of the nozzle-adjustment. This research has many utility valve, which can help us to research the inner control rule of the engine; improve our native aero-engine design level. Key words: Model and simulate; object oriented ; Nozzle-adjustment; AMESim