PREFACE

Aeroengine Structural Integrity Research Program(AESIRP) has been started since1 985 ,in the light of the failures and experience accumulated in the development,manufacturing and service of aeroengines in China and abroad. The AESIRP is state-supported,governed by China National Aeroengine Corporation and carried outunder chargeof Shenyang Aeroengine Research Institute. TheAESIRP aims at effective improvement of reliability and durability of Chinese aeroengines,assurance of the saf…     

DOMESTIC BRIEFS

(Oct.1-31) ▲Oct. 1 The new terminal of Jinan Yaoqiang International Airport, with an investment of RMB107.6 million yuan was laid foundation, having a design annual passenger capacity of 3.5 million, 7 times as that of the present one. ▲Oct. 3 China Air Supply Import & Export Corporation (CASC) signed an agreement with Boeing to order 30 B737s, the total value of which was $1.6 billion. According to the agreement these aircraft would be delivered respectively to China Southern Airli…     

DOMESTIC BRIEFS

▲Sept. 1 The 1st CAAC OfficialTraining Course on Government Man-agement Innovation and E-governmentAffairs was held.▲Sept. 1 Hainan Airlines launchedair service from Urumqi to Yining with aDo-328.▲Sept. 1 Boeing offered Civil Avia-tion University of China (CAUC)MyBoeingFleet.com website admittance,which became the first university in theworld obtaining the admittance fromBoeing.▲Sept. 4 New instrument flightprogram was operated at Jinmen airport.▲Sept. 4 The State Counc…     

Acta Aeronautica et Astronautica Sinica

ABSTRACTSMotion Estimation and Compensation Based on TrifocalTensor and BMA.WANG Yang-li,WU Cheng-ke( Schoolof Information Engineering,Xidian University,Xi′an71 0 0 71 ,China) .Acta Aeronautica et Astronautica Sinica( ISSN1 0 0 0 -6893) ,Vol.2 2 ,no.2 ,Mar.2 0 0 1 ,P1 1 7-1 2 0 .1 0 refs.in Chinese.To overcome some drawbacks of the block matchingalgorithm ( BMA) ,which can notaccurately describe ob-jectrotation,camera panning and zooming,this paper in-troduces the trilinear …     

DOMESTIC BRIEFS

▲July1The Customs started toreform the passenger declaration system byrequiring passengers entering or leavingChina through airports to fill in the"Luggageand Belongings Declaration Form of theCustoms of the PRC for Passengers Enteringor Leaving China".▲July7The Shanghai Airport Groupand the US-based United Parcel Service(UPS)signed an MoU on the establishmentof a UPS hub at the Shanghai PudongInternational Airport in2007.UPS at thesame time announced the opening of non-stop c…     

Abstracts of Acta Aeronautica et Astronautica Sinica

(Started in 196 5 ,a two- monthly in Chinese version)ABSTRACTSDirect Prediction of the Effects of Mistuning on Vibrationof Bladed Disk Assemblies.ZHOU Chuan- yue,ZOU Jing-xiang(Dept.of Astronautics and Mechanics,Harbin Insti-tute of Technology,Harbin　 15 0 0 0 1,China) .Acta Aero-nautica et Astronautica Sinica (ISSN 10 0 0 - 6 893) ,Vol. 2 2 ,no.5 ,September 2 0 0 1,P4 6 5 - 4 6 7. 9refs.in Chinese.The rotational periodicity of bladed disk assem blies canbe destroyed by m an…     

Abstracts of Acta Aeronautica et Astronautica Sinica

(Started in 196 5 ,a two- monthly in Chinese version)ABSTRACTSDirect Prediction of the Effects of Mistuning on Vibrationof Bladed Disk Assemblies.ZHOU Chuan- yue,ZOU Jing-xiang(Dept.of Astronautics and Mechanics,Harbin Insti-tute of Technology,Harbin　 15 0 0 0 1,China) .Acta Aero-nautica et Astronautica Sinica (ISSN 10 0 0 - 6 893) ,Vol. 2 2 ,no.5 ,September 2 0 0 1,P4 6 5 - 4 6 7. 9refs.in Chinese.The rotational periodicity of bladed disk assem blies canbe destroyed by m anufacturing process,m aterial,a co...     

High-temperature oxidation behavior and analysis of impedance spectroscopy of 7YSZ thermal barrier coating prepared by plasma spray-physical vapor deposition

Quasi-columnar structure 7YSZ(yttria stabilized zirconia) thermal barrier coatings(TBCs) are prepared by plasma spray-physical vapor deposition(PS-PVD) onto pretreated and un-pretreated bond coating, respectively. An isothermal oxidation experiment of 7YSZ TBCs is carried out in the atmosphere of 950 °C in order to simulate the high-temperature oxidation process of engine blades. The isothermal oxidation process of 7YSZ thermal barrier coatings is investigated systematically by impedance spectroscopy. The electrochemical physical model and equivalent circuit of columnar 7YSZ coatings are established. Results show that the isothermal oxidation kinetic curve of columnar 7YSZ thermal barrier coatings appears to follow the parabolic law. A pretreatment of bond coating can reduce the growth rate of the thermally grown oxide(TGO) layer, restraining the initiation and propagation of microcracks between YSZ and TGO layers. The oxidation rate constants of 7YSZ coatings with pretreated and un-pretreated bond coating are 0.101×10~(-12) cm~2·s~(-1) and 0.115 × 10~(-13) cm~2 ·s~(-1), respectively. Impedance analysis shows that the content of oxygen vacancies decreases and the density increases after the TGO layer is oxidized for 150 h. In addition, shrinkage microcracks formed by sintering during the oxidation process is the main reason for an increase of the capacitance and a decrease of the resistance in the grain boundary of YSZ.     

SUBJECT INDEX OF CHINESE JOURNAL OF AERONAUTICS(2002)

AerodynamicsFinite Element Method forthe Transient Processof the Separation of External Storesfrom Aircraft ……………………YANG Zuo-sheng(1 )………………………………………………………………………………………………………Effectof Diffusively Shaped Holes on the Turbulent Flow Field of a Film Cooling Plate…………………………………SHIHong-hui,Kenji Kiriyama,Motoyuki Itoh(6)………………………………………………………………………Prediction of Aerodynamic Interactions of Helicopter Rotor on its Fuselage …………………………………………………XU Guo-hua,ZHAO Qi-jun,GAO Zheng,ZHAO Jing-gen(1 2 )………………………………………………………Topo...     

DOMESTIC BRIEFS

▲From Oct. 1, Air Macao started codeshare with Cathy Pacific on Macao-Bangkokair service. ▲ Oct. 2 Agusta signed cooperationagreement with Jiangxi Changhe HelicopterManufacturing Corporation. ▲ Oct. 2 China was selected as the per-manent member of ICAO I Category Council. ▲Oct. 3 Meilan Airport announced tosign special operating agreement with DFS,the biggest tourism retailer in the world. ▲ Oct. 4 China National Air Holdingsheld 69% of the stock of China National Avia-tion …     

SUBJECT INDEX OF CHINESE JOURNAL OF AERONAUTICS(2002)

AerodynamicsFinite Element Method forthe Transient Processof the Separation of External Storesfrom Aircraft ……………………YANG Zuo-sheng(1 )………………………………………………………………………………………………………Effectof Diffusively Shaped Holes on the Turbulent Flow Field of a Film Cooling Plate…………………………………SHIHong-hui,Kenji Kiriyama,Motoyuki Itoh(6)………………………………………………………………………Prediction of Aerodynamic Interactions of Helicopter Rot…     

DOMESTIC BRIEFS

▲Feb.2 Airbus and Xi’an Aircraft Industry Company(XAC)of China Aviation Industry Corporation(AVIC)signed a cooperation agreement relating to the A320 Fam-     

DOMESTIC BRIEFS(Sept. 1-30)

Sep. 4 China Southwest took the delivery of the second B737-600, which helped to replenish the airlines capacity for its National Day's flight plan. Sep. 5 China Airlines becamethe fourth shareholder of China CargoAirlines. Sep. 5 China Eastem completed4C check for A340 successfully. Sep. 7 The first A340 servicesimulato in both China and Asia, designedand manufactured by sub-group of Xi'anAircraft Group, was put into application atChina Southwest Cabin Service TrainingCenter after …     

DOMESTIC BRIERS

▲Jun. 1Air China Cargo Co. Ltd.implemented air carriers receiving regula-tions officially in order to make its cargotransportation clearing management compat-ible with the international practice.▲Jun. 8 Two individually-runenterprises, Chunqiu Airlines and AukaiAirlines, got the approval from CAAC toestablish.▲Jun. 8 Hainan Airlines entrustedCivil Aviation University of China (CAUC)to train the first pilot students with 4-yearundergraduate courses of the common higheducation.▲J…     

Full mode flight dynamics modelling and control of stopped-rotor UAV

The Stopped-Rotor(SR) UAV combines the advantages of vertical take-off and landing of helicopter and high-speed cruise of fixed-wing aircraft. At the same time, it also has a unique aerodynamic layout, which leads to great differences in the control and aerodynamic characteristics of various flight modes, and brings great challenges to the flight dynamics modelling and control in full-mode flight. In this paper, the flight dynamics modelling and control method of SR UAV in full-mode flight is st...     

Flying with China into a New Era of Aviation ▲GAMECO

Based at Guangzhou's Baiyun Interna-tional Airport,Guangzhou Aircraft Mainte-nance Engineering Company is one of the fewleading facilities in China offering aircraftmaintenance at international standards andpremium quality service to customer airlines.GAMECO is now certified by the Civil Avia-tion Administration of China (CAAC) and theFederal Aviation Administration (FAA) inthe US to provide repair and overhaul on Boe-     

The 20th Anniversary Celebration Held

The Civil Aviation Shanghai Polytechnic School(CASPS)held a ceremony to celebrate the20th anniversary ofits founding on the morning of October28.CAAC Vice Minister Yang Guoqing and Xia Xinghua,CAAC East China Administration Party Secretary andDirector,attended the ceremony and delivered speeches.Present at the ceremony were Li Wenxin,Partysecretary and vice president of China Eastern Airlines Group,Fan Hongxi,president of Shanghai Airlines Co Ltd,and CaiJun,chairman of the Tr…     

SCC investigation of low alloy ultra-high strength steel 30CrMnSiNi2A in 3.5wt%NaCl solution by slow strain rate technique

To evaluate stress corrosion cracking(SCC) mechanism of low alloy ultra-high strength steel 30CrMnSiNi2 A in environment containing NaCl, SCC behavior of the steel in 3.5wt% NaCl solution is investigated by slow strain rate technique(SSRT) with various strain rates and applied potentials, surface analysis technique, and electrochemical measurements. SCC susceptibility of the steel increases rapidly with strain rate decreasing from 1 · 10 5s 1to 5 · 10 7s 1, and becomes stable when strain rate is lower than 5 · 10 7s 1. SCC propagation of the steel in the solution at open circuit potential(OCP) needs sufficient hydrogen which is supplied at a certain strain rate.Fracture surface at OCP has similar characteristics with that at cathodic polarization 1000 mVSCE, which presents characteristic fractography of hydrogen induced cracking(HIC).All of these indicate that SCC behavior of the steel in the solution at OCP is mainly controlled by HIC rather than anodic dissolution(AD).     

Guide for Authors

About Journal Chinese Journal of Aeronautics (CJA) is a comprehensive academic journal dealing with the fields of aeronautics and astronautics. It reports researches concerning the two fields in China and abroad to promote the academic     

Guide for Authors

About Journal Chinese Journal of Aeronautics (CJA) is a comprehensive academic journal dealing with the fields of aeronautics and astronautics. It reports researches concerning the two fields in China and abroad to promote the academic exchange.