Workflow technology is widely used in business process management. However, there are still many problems during the execution of business process because of the imperfect workflow model. Process mining is the most useful tool of workflow modeling, which can obtain objective and valuable information...

The baseline drift and heavy pollution for vibration test of missile autopilot are still problems. The requirement of denoising is difficult to be achieved by traditional time-frequency method. In this paper, to filter out the baseline drift noise, a new morphological filtering method based on the b...

It is an inevitable trend that more and more divided RF systems are integrated into one rack for the new generation airborne electronic equipment development. However, the "module-based" electromagne-tic compatibility requirements, evaluation methods and other new electromagnetic compatibility issue...

Aimed at the problem of low precision in fault diagnosis of nonlinear non-Gaussian system due to serious noise interference under the actual working condition, this paper puts forward a new fault diagnosis method, which can adaptively update the state transition density variance of a cost reference ...

Industrial robot system based on cyber-physical system (CPS) is a key and enabling technology for intelligent manufacturing. This paper presents an industrial robot system based on CPS approach, which is the fusion of physical world and information world. The system is divided into physical layer, n...

The aim of this paper was to solve the slipper pair lubrication problem of the aero fuel piston pump under the mixed support of dynamic and static pressure. Based on the mathematical model of kinematics and dynamics of slipper pair, the mathematical model of the hybrid lubrication of the slipper pai...

In order to solve the problem of high computation complexity of narrow transition band filter bank, an odd-arrangement non-maximally decimated efficient structure with narrow transition band filter bank based on frequency response masking (FRM) is proposed. Firstly, when the prototype filter of this...

A new computation method of hot-air anti-icing chamber performance based on Eulerian wall film (EWF) model was presented in this paper. User defined scalar (UDS) of FLUENT software was used to calculate water droplet impingement efficiency by solving droplet governing equation. Mass balance analysis...

The existing model validation methods under uncertainty based on theory of probability are only applicable to validate model with random variables, but inapplicable to validate model with the mixture of random and interval variables. To address this issue, the validation method for model with the mi...

To improve the efficiency of Monte Carlo simulation applied to evaluating the common cause failure probability of complex mechanical system, the concept of system fatigue life PSN curve was set up first, and then a Monte Carlo method for system reliability assessment based on this concept was propos...

As cubature quadrature Kalman filter (CQKF) is easily influenced by uncertainty of state-space model and need to know exactly noise statistics, a new type of adaptive CQKF algorithm with strong tracking behavior is proposed. Based on the theory of strong tracking filter, the new algorithm introduces...

When the care robot is navigating in the indoor 3D structured environment, it is faced with the disadvantage of the large computational cost for map building and the lack of semantic information in the map. This paper presents a hybrid map building method based on point and plane features, which com...

Air target threat evaluation is the foundation for weapon allocation and resource management within the ground surface air defense system. Aimed at the problems of real-time and human subjectivity for threat evaluation, an air target threat evaluation model based on RS-TOPSIS is established accordin...

According to the wind field features of low-level wind shear, the engineering models of microburst and low-level jet are established based on the principle of fluid mechanics. The wind field models are combined with the six-degree-of-freedom ballistics model of rockets based on exterior ballistics t...

The jamming effect of periodic modulation signal on pulse Doppler (PD) fuze is studied based on the parameter of processing gain to quantitatively analyze and characterize the anti-jamming performance of PD fuze and obtain the factor that affects the anti-jamming performance of PD fuze. The processi...

The passive source localization accuracy can be greatly reduced due to the sensor position error. A localization algorithm using time difference of arrival (TDOA) for multiple disjoint sources was proposed, which improves the localization accuracy by means of a single calibration emitter. The sensor...

Electro-hydrostatic actuator (EHA) is a highly integrated pump controlled transmission system, and it has been successfully applied to A380 and F35 to drive main flight control surface. However, the traditional EHA composed by rotary motor and axial piston pump has limited dynamic response. This pap...

The non-ideal components of the signal generator of a navigation satellite payload can distort the transmitted signal. On the one hand, no applicable analytical model about the ranging performance loss caused by such signal distortions has been established by far. On the other hand, the existing sim...

The dynamic accuracy of the harmonic reducer is related to the parts' tolerance and assembly clearance as well as the flexibility and friction of the harmonic reducer. Most of the published literatures consider only a single factor and do not take into account the influence of model parameter uncert...

Doping Se can significantly improve the recrystallization temperature of GeTe phase-change material according to recent experiments, endowing GeTe with a higher working temperature and better data retention. However, the impact of Se on the structure and electrical properties of GeTe is not clear. I...

Some sectors such as logistics, insurance and intermediary agents need to make calls frequently. Manually callings lead to low efficiency, so that telephone number recognition has important practical values. The traditional methods for printed number recognition involve complicated templates designi...

Due to the fact that the research on the life prediction of the engine does not take into account both the nonlinearity and the multi-stage problems at the present stage, a method for forecasting the residual life of aeroengines in real time based on multi-phase nonlinear Wiener process is proposed....

Common cause failures (CCFs) in a system destroy the hypothesis that the failures are independent, which may significantly impact the reliability evaluation of the system, especially the phased-mission system (PMS). Aimed at the impact of probabilistic common cause failure (PCCF) on reliability of m...

A multi-dimensional loading device based on a 6-PUS parallel mechanism was designed to apply time-varying multi-dimensional loads to target. Firstly, according to the principle of vector superposition and Newton-Raphson method, the inverse and forward kinematics of loading device were analyzed. Seco...

The CFD calculation is usually deterministic. However, errors and uncertainties always exist in the numerical simulation of complex engineering. Analysis and identification of source of uncertainty, and quantification of uncertainty play important roles in assessing the credibility of simulation res...

A numerical model of the tornado was established by using computational fluid dynamics (CFD) method. Based on the speed type of the tornado in the plane, which was fitted to be the function relation, the initial velocity field and the related boundary condition were set in the 3D CFD program. Differ...