AVIC Harbin Dongan Engine group Corporation LTD

Heilongjiang, China

AVIC Harbin Dongan Engine group Corporation LTD

Heilongjiang, China

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Zhang Y.,Jülich Research Center | Zhang Y.,CAS Changchun Institute of Applied Chemistry | Zhang Y.,AVIC Harbin Dongan Engine Group Co. | Malzbender J.,Jülich Research Center | And 6 more authors.
Ceramics International | Year: 2013

Composite materials based on 8 wt% yttria partially stabilized zirconia, with additions of gadolinium zirconate, lanthanum lithium hexaaluminate, yttrium aluminum garnet and strontium zirconate were characterized. Samples were fabricated by hot-press sintering at 1550° C. The effect of the secondary phase content on the mechanical properties of the composites was evaluated. Hardness, elastic modulus and fracture toughness of the fabricated composites were determined by means of depth-sensitive indentation testing. The fracture toughness of the samples as determined by the indentation method was found to increase with increasing YSZ content, reaching 3 MPa·m0.5 for samples with 80 wt% YSZ. The fracture toughness appeared to be affected by thermal expansion coefficient mismatch, crack bridging and crack deflection. © 2013 Elsevier Ltd and Techna Group S.r.l.

Han L.,Beihang University | Hong J.,Beihang University | Ma Y.,Beihang University | Dou M.,Avic Harbin Dongan Engine Group Corporation LTD.
ICRMS'2011 - Safety First, Reliability Primary: Proceedings of 2011 9th International Conference on Reliability, Maintainability and Safety | Year: 2011

Missile-engine is an important part of missile system and a crucial factor to form military battle effectiveness. Considering of the long-term stored and one-time expended characteristics of missile-engine, it is significant to study storage reliability assessment of missile-engine and determine the weak moment. For digging the potential storage life of missile-engine, a missile-engine storage reliability assessment to study the variation of storage life is launched. According to the characteristics of missile-engine, the storage reliability and reliable storage life can be used as its storage reliability evaluation index. This paper concentrates on missile-engine storage reliable assessment based on Bayesian approach, and it is useful for the new maintenance program. © 2011 IEEE.

Wang Y.-Z.,Beihang University | Wang Y.-Z.,Chongqing University | Wu C.-H.,Beihang University | Gong K.,Beihang University | And 3 more authors.
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science | Year: 2012

In order to analyze the transmission performance of face-gear in real working condition, a calculational approach for load equivalent error of alignment has been investigated with the purpose of analyzing the support system and tooth deformation of face-gear drives. Then, the equations of contact path of loaded tooth contact analysis have been established based on load equivalent error of alignment. For the purpose of analyzing the bearing contact, the curvatures of face-gear and pinion have been presented. Tooth contact deformation and bending deformation have been developed using elasticity and three-dimensional FEA. Loaded tooth contact analysis and contact stress have been considered to simulate the contact and meshing of the gear tooth surfaces and to calculate the evolution of load distribution, bearing contact, transmission errors, and contact stresses of the gear drive along the cycle of meshing. The performed research proves that the proposed loaded tooth contact analysis method can effectively solve the meshing characteristic problem of face-gear drives system. The results are illustrated with numerical examples. © IMechE 2012.

Wang T.,CAS Shenyang Institute of Metal Research | Song B.,AVIC Harbin Dongan Engine Group Co. | Hua W.,CAS Shenyang Institute of Metal Research | Gong J.,CAS Shenyang Institute of Metal Research | Sun C.,CAS Shenyang Institute of Metal Research
Jinshu Xuebao/Acta Metallurgica Sinica | Year: 2011

Based on the orthogonal experiment, the effects of oxygen-fuel ratio and spraying distance on physical and mechanical properties of D-gun sprayed WC-Co coatings were investigated. An ideal coating with the uniform dense microstructures, high hardness and elastic modulus, and excellent wear resistance was obtained by technology optimization. The phase identifications and microstructure observation of the optimized WC-Co coating were conducted by XRD and SEM, respectively. The coating showed near-isotropic behaviors, which has been verified by the comparisons of mechanical and wear properties between cross section and surface. The mechanisms how the spraying parameters affected near-isotropic characters of the D-gun sprayed WC-Co coating were analyzed and discussed. © Copyright.

Wan X.,CAS Shenyang Institute of Metal Research | Shi Y.,AVIC Harbin Dongan Engine Group Co. | Ma J.,CAS Shenyang Institute of Metal Research | Li H.,CAS Shenyang Institute of Metal Research | And 2 more authors.
Jinshu Xuebao/Acta Metallurgica Sinica | Year: 2010

CrN coatings were deposited onto 38CrA substrate using arc ion plating (AIP) method. The microstructures of CrN coatings were investigated by XRD and SEM. The corrosion behaviour affected by deposition parameters was studied by salt spray corrosion test in a neutral mist of NaCl solution at (35 ± 2)°C for 300 h. The results show that all of the CrN coatings contain primarily fcc-CrN along with hcp-Cr2N and bcc-Cr phases. CrN phase in coating deposited under lower N2 pressure exhibited {100} preferred orientation, while {110} preferred orientation under higher N2 pressure. Under the deposition condition of higher bias voltage and lower N2 pressure, the CrN coating achieves dense microstructure with less residual stress and porosity, which leads to better corrosion resistance in salt spray test. The corrosion product of salt spray test was investigated by SEM and EDS, and the corrosion mechanism was discussed. © Copyright.

Dong G.,Harbin Institute of Technology | Dong G.,Avic Harbin Dong An Engine Group Corporation Ltd | Zhou M.,Harbin Institute of Technology | Huang S.,Jiamusi University
Key Engineering Materials | Year: 2014

The conventional machining method for silicon nitride ceramics has low machining efficiency, prone to cracking, chipping and other defects. In this paper, the author carried out a study on the influence of ultrasonic vibration grinding on surface quality of silicon nitride ceramic, and carried out ultrasonic vibration grinding process test for silicon nitride ceramic and conducted the analysis of influence of this machining process on surface quality with orthogonal test. The test results showed that the influence on surface roughness decreased in the order of spindle speed, feed rate, cutting depth, and amplitude of vibration.

Li M.,China Academy of Aerospace Systems Science and Engineering | Shang Z.,China Aerospace Science and Technology Corporation | Wang R.,China Academy of Aerospace Systems Science and Engineering | Li T.,AVIC Harbin Dongan Engine Group Co.
Proceedings of the World Congress on Intelligent Control and Automation (WCICA) | Year: 2016

Attitude determination is an important part for Autonomous Underwater Vehicles (AUVs) to achieve their designed mission. This paper presents a novel attitude solution based on the hydrodynamic model. The hydrodynamic parameters can be calculated by the known hydrological parameters. Meanwhile, the pressure information of AUV's surface can be measured by the pressure sensor array. The attitude information can be solved based on the values above. In order to verify the effectiveness of the proposed method, a multi-sensor integrated system is designed. The hydrodynamic parameters are solved by the finite element method. The quaternion model and EKF are selected to estimate the attitude information. Simulation results demonstrate that the proposed method is effective to improve the accuracy of the attitudes. © 2016 IEEE.

Shang Z.,CAS Beijing Institute of Acoustics | Ma X.,CAS Beijing Institute of Acoustics | Li T.,AVIC Harbin Dongan Engine Group Co. | Lin J.,CAS Beijing Institute of Acoustics
Proceedings - 2014 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2014 | Year: 2014

Inertial navigation technology is usually selected as the primary navigation method of Autonomous Underwater Vehicles (AUVs). The localization error can gradually increase over time in the absence of other navigation correction information. Moving Short Base-lines (MSBL) mounted in the bottom of mother ship can be fused in the AUVs' integrated navigation system, which can effectively slow down or inhibit the growth of the positioning error. However, different number of baselines and different geometric configuration can cause changes in navigation accuracy. In this paper, the rank and the determinant of the Fisher Information Matrix (FIM) are analysed to obtain the impact of the number of baselines and geometric configuration on the underwater AUVs positioning observability. Then, we get the principles of optimal design of the number of baselines and geometric configuration. Under the conditions meeting the minimum number of baselines, we simulate and compare AUVs' localization errors of two typical geometric configuration. Simulation results show that the design satisfying the principles of optimal design based on FIM can effectively inhibit the growth of the positioning error. © 2014 IEEE.

Xiu J.-Q.,AVIC Harbin Dongan Engine Group Co. | You Q.,Nanjing University of Aeronautics and Astronautics | Shi Z.-Y.,Nanjing University of Aeronautics and Astronautics
Zhendong yu Chongji/Journal of Vibration and Shock | Year: 2012

The vehicle loads to be identified as moving loads were mapped into a wavelet space, a continuous bridge under action of moving load was modeled with the wavelet finite element method (WFEM). Taking the scale function of wavelet as an interpolation function, an elemental transformation matrix was formed to realize the transfer from the wavelet space to a physical one. The moving load was identified with distributed acceleration data as measured dynamic responses, they were integrated into velocities and displacements. The large fluctuation could be avoided in analysis of time history with the dynamic programming method and regularization. The simulation validated the feasibility of the proposed moving load identification on a continuous bridge model using WFEM with fewer elements, furthermore the noise could be greatly smoothed with the first order Tikhonov regularization in identification.

Zheng X.,AVIC Harbin Dongan Engine Group Corporation Ltd.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2012

Effect of annealing temperature on microstructure, mechanical properties and fatigue crack propagation rate of high-strength Al-4.2Cu-1.4Mg aluminum alloy were investigated. The microstructure and the precipitated phases were examined by metallographic microscope, scanning electron microscopy and energy spectrum analysis. The results show that with the annealing temperature increasing from 380°C to 440°C, the grain size of the T3 Al-Cu-Mg alloy plates is refined and the volume fraction of second-phases Al2CuMg and Al2Cu decrease gradually. As a result, the fatigue crack propagation rate has a decreasing tendency. Furthermore, with the intermediate annealing temperature increasing, the tensile strength of Al-Cu-Mg alloy decreases slightly and the elongation increases.

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