At present carbon fiber - reinforced composite is developed to use in some aero - engine components in our country. using the numerical method and fatigue damage theory, the buckling and fatigue on the composite materials and composites case are studied for aero - engine design
本文從實際工程背景出發，利用板殼理論和現代數值分析技術的研究成果，結合疲勞累積損傷理論，對航空發動
機用的復合材料及其
機匣結構的屈曲與疲勞壽命問題開展了較為系統深入的研究。
3, analyzing the stress field of the aero - engine case under the given loads, the fatigue life of the case is predicted through the presented fatigue model and the method of " nominal stress "
用該模型對孔徑為5mm層合板的s ? n曲線進行疲勞壽命預測及試驗驗證。 3 、首次對某型發動
機t300 kh - 304復合材料
機匣的主鋪層在給定工況下的疲勞壽命進行預測。
The thesis researched the basic ways of the optimizations, the programming methods, the cutting ways and the cutter selections in the process of the nc machining
機匣數控加工工藝優化研究。論文研究了
機匣數控加工工藝優化的基本實現途徑，以及所採用編程方法、切削方式與刀具的選擇、切削冷卻液的選擇等。
Experimental research of an axial flow compressor performance with stepped tip gap casing configuration
梯狀尖部間隙
機匣處理對軸流壓氣
機性能影響的實驗研究
An interpolation program is used to convert the fluent result data to the ansys load data. it is a new method to analyze turbine tip clearance. in this paper, some research of the numerical computation of the tip clearance of aero - engine is done, the parametric method is used and the research on the flow, heat and structure integration analyses is accomplished
本文對渦輪
機匣氣熱固一體化分析方法做了研究，通過編制了載荷轉換與施加程序，從氣熱計算模型中提取溫度場計算結果，並作為載荷加入到熱固耦合計算模型中，實現了高壓渦輪
機匣的一體化計算分析，為實現渦輪葉尖間隙的氣熱固一體化分析打下了基礎。
Whilst the anti - fatigue design of the chamber is one of the critical technologies whose basis is the research on the fatigue properties of the laminates
機匣的疲勞設計是其中的關鍵技術之一，而復合材料層合板的疲勞研究是
機匣的疲勞設計的基礎。
Twelve casing configurations were investigated, consisting of three step profiles at each of three clearance levels ( including seven casing geometric size ) to find the effects of radial / axial variation of tip gap on rotor performance, and five casing configurations including two types of asymmetric profiles were applied in the research of circumferential variation of tip clearance
文中設計了十二種
機匣結構用於與實壁
機匣相比較，包括軸向布局的七種階梯狀結構及五種周向變化的不對稱結構形式（偏心周向變化和橢形周向變化） 。
And the finite element method ( fem ) was used to simulate the stress and deformation of the outer casing and the bearing chock. on the basis of the experiments and fem analysis, the strength and fatigue lifetime, the interaction of creep and fatigue lifetime, the creep lifetime of outer casing and bearing chock have been analyzed, at the end of trail, sem analyses of failure section has been conducted
同時對航空發動
機燃氣渦輪外
機匣和軸承座進行了有限元模擬計算，得到外
機匣和軸承座的焊接處的強度和變形情況的模擬結果。根據試驗數據和有限元的計算結果，對發動
機燃燒室外
機匣和軸承座兩種結構（包含焊縫）進行靜強度分析、疲勞壽命分析、蠕變壽命分析、蠕變疲勞交互作用壽命分析以及斷口的金相分析。
At the same time, tip leakage induced by pressure gradient and relative motion between the blade tip and the shroud wall is found to have a major influence on detailed flow properties in tip region of rotor passage
同時，由於轉子葉片壓力面和吸力面之間壓力梯度以及葉頂與
機匣之問的相對運動產生的間隙流對轉子通道內的細微流動結構有較大的影響。
Aim at the status of design of aeroengine casing parts almost without using parametric methods, an improved method is proposed which can deal with the relationship of associated dimension of geometry elements in the parts. a new method can embed the geometry elements in a sketch into another sketch so that the model of the casing parts is parametric and can be modified conveniently
針對航空企業設計
機匣零件參數化程度不高的現狀，提出了改進方法，注重
機匣零件相關尺寸之間的關系處理，提出了草圖特徵嵌入草圖的新方法，提高了參數化程度，使得模型具有較好的可修改性。
It focused on the typical nc machining methods of casing parts, including the process path of milling machining, the manufacturing of pocket parts, the manufacturing of bore, the method of orientation and clamp towards casing and so on
論文研究了
機匣典型特徵的數控加工方法，包括銑加工工步規劃、腔槽特徵加工、孔加工、裝夾方法等。
Transient dynamical analysis of aero - engine combustor outer casing
航空發動
機燃燒室外
機匣瞬態動力分析
Study on the bifurcation and chaos behaviors of rotor - box with local rubbing
機匣局部碰摩的分叉與混沌行為分析
Failure investigation of impact - rub in rotor - stator box system of unbalanced rotating machinery
機匣系統碰摩的失效研究
( 2 ) the research of manufacture - oriented parametric feature modeling methods
面向加工的
機匣參數化特徵建模方法研究。
Accessory drive casing
附件傳動
機匣
Analysis for higher of vibration cause of the outer case on the certain engine in field
基礎發動
機外置
機匣外場振動值偏大原因分析
Reciprocating internal combustion engines. flywheel housings. nominal dimensions and tolerances
往復式內燃
機.飛輪
機匣.額定尺寸和公差
( 3 ) the machining process path optimizations of the casing parts of aeroengine under the digitized condition
數字化條件下
機匣加工工藝路線的優化。
The numerical results of smooth wall agreed well with experimental data for the global performance of smooth wall
數值計算所獲得實壁機匣總性能與其試驗結果相吻合。
