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Shenyang, China

Shenyang Aircraft Design Institute is a Chinese design institute and jointer partners with Shenyang Aerospace Corporation for military aircraft engines. Wikipedia.

Jiang C.-H.,Beihang University | Jiang C.-H.,Shenyang Aeroengine Research Institute
Hangkong Dongli Xuebao/Journal of Aerospace Power | Year: 2011

A concept of dual-redundant control law design for aero-engine was proposed and a method of utilizing dual-redundant control law for the control sensors signal fault processing policy was derived in the paper. The technique and principles of the backup control law design were built and applied to the dual-redundant control law design and research of one high performance turbofan engine. The study result indicates that the dual-redundant control law can be made undisturbed conversion and control loop reconfiguration, so that mission reliability of engine is improved. The means may have application in all kinds of engine which is equipped with digital electronic control system. Source

Shao W.-R.,Beihang University | Shao W.-R.,Shenyang Aeroengine Research Institute
Hangkong Dongli Xuebao/Journal of Aerospace Power | Year: 2012

The numerical simulation on convergent flap length, nozzle throat arc radius, divergent flap length and nozzle expansion ratio affecting the internal performance of an axisymmetric convergent-divergent nozzle was conducted by applying a three-dimensional(3-D) viscous flow program that the results of the simulation were compared with that of the scale model experiments. The investigation shows that: convergent flap length and nozzle throat arc radius have some effects on the flow coefficient under the condition of a big convergent half angle, and convergent flap length can be properly reduced on condition that convergent half angle is less than 45 degrees; divergent flap length and nozzle expansion ratio have big effect on the thrust coefficient, and selected divergent flap length and nozzle expansion ratio shall work hard for fully expanded nozzle flow on condition that divergent half angle is less than 16 degrees. Source

Zhang W.,Beihang University | Zou Z.,Beihang University | Qi L.,Beihang University | Ye J.,Chongqing University | Wang L.,Shenyang Aeroengine Research Institute
Computers and Fluids | Year: 2015

The effects of inlet freestream turbulence intensity (FSTI) on aerodynamic performance as well as temporal and spatial evolution of coherent structures in separated shear layers are investigated in this paper. Large-eddy simulations (LES) are performed on the T106D-EIZ profile at Reynolds number (Re) of 60,154 (based on the chord and outflow velocity). Four cases are conducted on the conditions without upstream wakes but with FSTI of 0, 2.5%, 5.0% and 10.0% respectively. The results show that the open separations cannot be removed in these working conditions, but could be compressed by FSTI to a certain extent. Meanwhile, the coherent structures in separated shear layers are affected remarkably. The obvious three-dimensional perturbations appear earlier in separated shear layers as FSTI enhanced, which make the spanwise vortices roll up earlier and break down more quickly, therefore, the vortex pairing cannot occur even under relatively low FSTI conditions. The cases in this paper state clearly that the effects of FSTI are more prominent when it is lower than 5%. It is also found that the enhanced FSTI can increase the instability Strouhal numbers of separated shear layers. Nevertheless, the values of the instability Strouhal numbers are still within the typical level. © 2014 Elsevier Ltd. Source

Liu G.,Harbin Engineering University | Li S.,Harbin Engineering University | Li Y.,China Ship Development And Design Center | Chen H.,Shenyang Aeroengine Research Institute
Journal of Sound and Vibration | Year: 2013

Branched pipes of arbitrary shapes are prevalent in pipe systems. Considering fluid-structure interaction (FSI), an absorbing transfer matrix method in frequency domain for fluid-filled pipelines with any branched pipes is proposed in this paper. A dominant chain of pipeline would be selected, and the point transfer matrix of each junction on the dominant chain would be determined. Here, the point transfer matrix, representing the influence of branched pipes at the junction on the dominant pipeline, was "absorbed" by the dominant chain. Based on these, with transfer matrixes of other elements, the fluid and structure dynamics problem could be solved following the chain transfer matrix method process. Several numerical examples with different constraints are presented to illustrate the application of the proposed method. Moreover, the experiment of cross-shaped pipes with various boundary conditions was carried out. And results from the present approach were validated by measured and numerical data. Then, the forced vibrations of branched pipes were analyzed by considering the effects of various parameters, which shows the fluid pressure and vibrations can be optimized by changing the branch angles and positions. Through these examples, it is shown that the proposed method is efficient and can be used to calculate branched pipes of any shape. © 2013 Elsevier Ltd. Source

Zheng K.,Shenyang Aeroengine Research Institute
Applied Mechanics and Materials | Year: 2014

Active magnetic bearing (AMB) is a prime component of the more electric aircraft technology that aims at reducing weight and emissions, and augmenting reliability and efficiency for future aircraft. The effect of maneuvering flight on performance of AMB system is investigated. A mathematical model considering maneuver equivalent force is presented and based on the model stability analysis is presented in terms of asymptotical and regional stability. The research result indicts that maneuvering flight has a great influence on system dynamics and stability. © (2014) Trans Tech Publications, Switzerland. Source

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