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2010 Vol. 36, No. 5

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Analysis on power recovery rate of the accelerated life test bed for the airborne hydraulic
2010, 36(5): 505-508.
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In view of the accelerated life testing(ALT) for the airborne hydraulic has the characteristics of long test time and many power consumption, the mechanical compensation method to save energy was brought forward based on the power recovery principle. To realize power recovery， the flow matching cond...
Dynamic characteristic analysis of the gas film seal in counter-rotating shafts
2010, 36(5): 509-512.
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Two stiffness and damping of the seal were calculated with the finite element method; the influence of the racetrack and the primary seal ring mass on the stiffness and damping was analyzed; then the vibration process of the seal caused by transient force was analyzed. The results declare that film ...
Mechanism optimization of bionic cockroach robot based on locomotion dexterity 
2010, 36(5): 513-517.
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The oval body configuration based on the characteristic of mechanism and the locomotion dexterity of a bionic cockroach robot was chosen. The workspace of a single leg and the dexterity denoted by the reciprocal of condition number of the whole bodys Jacobian matrix were used to optimize and config...
Tolerance optimization based on neural network and genetic algorithm
2010, 36(5): 518-523.
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Taking into account the highly nonlinear relationship between the cost and the tolerance in the product manufacturing process, a method based on the neural network in conjunction with the genetic algorithm was proposed to solve the tolerance optimal issues. The method integrates the advantage of the...
Error predicting for material Brinell hardness measurement of  poor information based on grey bootstrap method
2010, 36(5): 524-528.
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Error predicting for material Brinell hardness measurement of poor information is a common problem in the field of hardness measurement. Only small sample measurement data obtained for Brinell hardness measurements are destructive. Different from statistical methods, a novel poor information Brinell...
Large eddy simulation of film cooling under rotating condition
2010, 36(5): 529-533.
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Large eddy simulation was used to predict flow and heat transfer of film cooling on a flat plate perforated by 35° streamwise inclined cylindrical hole of 4mm under stationary and rotation conditions. The predicted nondimensional velocity profiles compared well with available experimental data in ...
Genetic algorithm analysis for multisatellite TT&C scheduling
2010, 36(5): 534-539.
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A multi-satellite tracking telemetry and command(TT&C) scheduling model was proposed, guiding by the engineering requirement, and genetic algorithm was used to solve the problem，which aimed at solving the multisatellite conflict problem. Based on the global and local searching strategies, takin...
Numerical control reconfigurable compliant tooling technology
2010, 36(5): 540-544.
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Jig is an important process tooling in aircraft assembly. In order to change the traditional “one to one” assembly mode that one rigid jig only assembles one panel components in aircraft assembly, reduce the number of tooling and develop digital flexible assembly, NC(numerical control) reconfigurabl...
Decentralized optimal control of multiple heterogeneous UAVs in cooperative target tracking
2010, 36(5): 545-549.
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The decentralized information fusion algorithms for multiple heterogeneous sensors platforms with different types and dimensions was developed to meet the needs of the target tracking with active and passive sensors. The decentralized information fusion algorithm was scalable, heterogeneous and reco...
Program and scenario of manned spaceflight to Mars
2010, 36(5): 550-554.
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A brief overview of research progress about manned spaceflight to Mars program in several countries was given. Investigation of some domestic and international programs and scenario of manned spaceflight to Mars was put up. Some fundamental and basic ideas about determination of future manned spacef...
3D morphing method based on Kriging algorithm for surgical navigation
2010, 36(5): 555-559.
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A set of preoperative CT reconstructed model can not be used in operating on individual patient in 3D surgical navigation systems. According to the problem above, a 3D bone morphing method based on Kriging algorithm was presented. Two point sets， one of which was acquired from physical space by the ...
Energy consumption analysis for pneumatic actuator and electric actuator
2010, 36(5): 560-563.
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The energy consumption processes of pneumatic actuator and electrical actuator were analyzed. A calculation model of the energy consumption for pneumatic actuators was proposed. And two sets of actuators experimental system for pneumatic actuator and electrical actuator were built up. The large quan...
Application of complete complementary sequence in MIMO radar
2010, 36(5): 564-569.
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MIMO(multiple-input multiple-output）radar can effectively improve radar performance by transmitting orthogonal signals. While the conventional single sequence can not keep the complete orthogonality (the sidelobes of the auto-correlation and cross-correlation function equal to zero at all delays). I...
Optimum design of accelerated life testing based on proportional hazards-proportional odds model
2010, 36(5): 570-575.
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nformation based optimality criteria were adopted in the optimum design of accelerated life testing (ALT) based on non-parametric model. The optimum design of accelerated life testing based on proportional hazards-proportional odds model was processed for constant stress loading and step stress load...
Reliability integrated compliance testing plans based on decision making level data fusion
2010, 36(5): 576-579.
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The reliability compliance test is the test inspected reliability level against the requirements, and is the important reliability activities. It is a formidable task for some expensive or high reliability products according to classic reliability compliance testing plans to demonstrate reliability....
Modulation method for stabilizing zero-bias of FOG during warm-up
2010, 36(5): 580-583.
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To solve the zero-bias fluctuation problem of fiber-optic gyroscope (FOG) during its warm-up, the influences of initial alignment of 2π voltage and anterior gain fluctuation on the zerobias of FOG were analyzed, respectively. A novel hybrid modulation method, namely four-state modulation method was...
Method for measuring recovery time of digital television receiver
2010, 36(5): 584-587.
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Recovery time of digital television (DTV) receiver is an important indicator of DTV service quality but the recovery time can not be measured directly with existing equipments. A new method was presented which measure the recovery time by bit error rate (BER) tester and impulse noise source through ...
On coupled bending and torsion of rotor with nonlinear oil-film force
2010, 36(5): 588-591.
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A mathematical model of a rotor with nonlinear oilfilm force was presented, in which coupled bending and torsion were considered. The unbalance response of the rotor was numerically calculated by Rugge-Kutta method, and the bifurcation diagrams and waterfall plot were obtained to analyze dynamic ch...
Three dimension numerical simulation of flow/solid coupled heat
2010, 36(5): 592-595.
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To understand the complex fluid flow and heat transfer in heater nozzle, three dimensional fluid/solid coupled heat transfer method was employed. Governing equations for hot gas, solid wall and coolant were established respectively, radiation heat was added into the energy equation as a source of he...
Influence of canard wing and strake on aerodynamic characteristic of  chined forebody at high AOA
2010, 36(5): 596-600.
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The influence of canard wing and strake on aerodynamic characteristic of chined forebody was studied by surface pressure measurement and particle image velocimetry（PIV） flow measuring systematically.It shows that there is only a little effect of canard wing on the flowfield around nose area under 50...
Antenna sensor based on PSD and application mobile robot
2010, 36(5): 601-605.
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In the environment with limited light, robots obstacle avoidance could not be realized if the vision sensor was used only. In order to deal with the problem, an antenna sensor system was designed. Position sensitive detector (PSD) was used as the sensing instrument and a laser pointer was attached ...
Ultra-tightly coupled navigation system design based on SINS aiding GPS tracking loops
2010, 36(5): 606-609.
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In order to improve the tracking performance of global positioning system (GPS) in high dynamic environment and provide reliable calibration information for strapdown inertial navigation system (SINS), the scheme of SINS aiding GPS ultratightly coupled navigation was presented. Considering the poor...
Effect of titanium on high temperature oxidation esistance of niobium based alloy
2010, 36(5): 610-613.
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As a criterion of the integrated oxide on pure metals, pilliingbedworth ratio (PBR) is one of the main reasons of generating the growth stress in the scale. In order to evaluate the value of PBR for the oxide formed on alloys, a simple model had been established; and the value of Nb2O5，Ti2Nb10O，TiN...
Multiple scattering RCS computation of complex targets on GRECO
2010, 36(5): 614-616.
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The multiple scattering of the complex targets has great influence on the accurate radar cross section(RCS) prediction of the target. A new method based on the graphic electromagnetic computing(GRECO) platform utilized the visualization character of the GRECO. The pixel was regarded as basic compu...
Active-disturbance rejection control of multi-redundancy brushless DC motor
2010, 36(5): 617-621.
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To overcome the effects of the parameter variations, cogging effects, load disturbance and degrading redundancy and achieve high-performance servo control, an active-disturbance rejection controller (ADRC) of multiredundancy brushless DC motor servo system was presented. The position controller was...
Factor analysis used in pulsed infrared thermographic NDT
2010, 36(5): 622-626.
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To improve the detection capability of pulsed thermography (PT), factor analysis algorithm was applied to image sequence processing in pulsed infrared thermographic nondestructive examination(NDT). The principle of factor analysis was introduced and the procedure of image sequence processing and rec...
SLD collimation system design for free-space optical transceiver module of fiber optic gyroscope
2010, 36(5): 627-630.
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With the development of highly accurate and compact fiber optic gyroscope, based on the special demands of compactification and integration to the transceiver module used in the fiber optic gyroscope and the characteristic of superluminescent diode(SLD) beam, an array of asymmetrical cylindrical len...

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