With the rising of energy requirements, Lithium-Ion Battery (LIB) have been widely used in various fields. To meet the requirement of stable operation of the energy-storage devices in extreme climate areas, LIB needs to further expand their working temperature range. In this paper, we comprehensivel...

Aimed at the conservative problem of integrity risk and continuity risk allocation in the traditional Advanced Receiver Autonomous Integrity Monitoring (ARAIM) algorithm, a new integrity risk and continuity risk allocation method based on Particle Swarm Optimization (PSO) algorithm is proposed. This...

Aircraft test can simulate the flight environment to verify whether the aircraft functions meet the requirements and the performance is accurate. In recent years, the aircraft assembly process has gradually turned into three-dimensional design, while aircraft test is still limited to the description...

In order to study the effect of deposition of pollutants on film cooling of blade leading edge of turbine, the experiment used paraffin deposition to simulate real deposits.By changing the mainstream temperature, the angle of film hole jet and the diameter of film hole, the variation of film cooling...

Electronic information equipment will emit electromagnetic wave unintentionally, which contains useful information. It will lead to the electromagnetic information leakage, thus threatening the information security. The traditional electromagnetic information leakage detection methods are difficult ...

The online measurement system of gas pressure, flow and other parameters was established to realize the regulation and control of the measurement and control system through the data acquisition system of industrial personal computer, combined with sensor technology, signal processing technology, etc...

In order to solve the problem of frequent updating of information between UAVs and control input in multi-UAV formation target tracking, this paper proposes a multi-UAV formation target tracking control algorithm based on event-triggered mechanism. Firstly, a new integrated method of formation descr...

The information exchange, in the forms of pictures, voice, video and other multimedia, plays an important role in network communication, as well as many illegal information disseminations are hidden. Steganalysis is an effective way of detecting secret information. This paper proposes a universal HE...

To handle the precise trajectory control problem of the cable towed vehicle under unknown airflow disturbances, the minimal learning parameter neural network estimator based dynamic surface trajectory control method is proposed for the towed vehicle. Firstly, combined with the multi-body dynamic mod...

Bolted joints are the weak points of composite structures. Therefore, the design of bolted joints is one of crucial issues in the design of composite structure. In this paper, a probability analysis model for the failure load of a Carbon Fiber Reinforced Polymer (CFRP) composite bolted joint was bui...

Aimed at the design and maintenance of long-duration repeat ground-track orbit, this paper deals with a semi-analytical method based on high-order Poincaré maps for the optimal design and control of repeat ground-track orbit in the high-precision gravity fields, including the factors of atmospheric ...

Time-Triggered Ethernet (TTE) makes communication tasks have strict determinacy and conflict free by global time-triggered mechanism, which is suitable for mixed critical application fields such as avionics. TTE network provides three different traffic types: Time-Triggered (TT) traffic with low jit...

In order to solve the problem that the state changes of only one variable instead of related variables are considered in the process of aircraft engine condition prediction, an online prediction model of the state of engine based on multivariate Kernel Extreme Learning Machine (KELM) is proposed. Fi...

This paper proposes a multi-source model extraction method based on electromagnetic interference element theory to solve the modeling problem of digital circuit electromagnetic conducted emission. Based on the basic emission waveform theory, this paper divides the digital circuit electromagnetic con...

The Pilot Induced Oscillations (PIO) pose a serious threat to the flight safety of aircraft. Predicting the PIO of full-size aircraft preliminarily based on flight test of dynamically similar scaled model helps to reduce the test risks and save cost. Bandwidth criterion and Neal-Smith criterion are ...

The aerodynamic coupling effect of the composite flight of aircraft via wingtip-jointed structure determines the dynamic characteristics different from those of its independent flight, where safety risks might exist. In order to investigate the dynamic characteristics of the wingtip-jointed composit...

The ejection emergency flight data recording and tracking system consists of the intelligent ejection separation, tow-type image tracking, inflatable soft-landing and data transmitting. In this paper, the key subsystem design and UAV test verification are carried out. According to the characteristic...

The smooth time-varying constraint is a mechanical effect of continuous contact produced by the rubbing between rotor and stator, in which the periodic time-varying constraint is applied to the rotor. The additional stiffness curve caused by contact between the stator and the rotor is a smooth and d...

The efficient and orderly swarms control mode is the prerequisite for the swarms to successfully complete the combat mission. Aimed at the problem of UAV swarms control, a hybrid swarms control based on Agent and cellular automata is proposed by combining the centralized and distributed control mode...

Accurately predicting the intercept point and intercept time of the interceptor in real time is an effective way to realize the mid-course penetration of ballistic missiles. In order to predict the intercept point coordinates and intercept time during the mid-course penetration process of ballistic ...

The steady-state experiment and numerical simulation were carried out to investigate the flow structure and heat transfer characteristics in the rotating cavity with axial flow. By changing the axial flow coefficient, rotating Reynolds number, etc., the radial distribution of temperature and Nusselt...

According to the multi-field coupling characteristics of air-cooled turbine blades, numerical simulation of high-pressure turbine guide vanes with different air-cooling structures is carried out by the flow-heat coupling method. In internal cooling turbine blade example, by comparing the experimenta...

Aimed at reducing the overall misrecognition cost of ballistic targets, A One-Dimensional Convolutional Neural Network (1D-CNN) based on Cost-Sensitively Pruning (CSP) is proposed for ballistic target high-resolution range profile recognition. Firstly, based on the lottery ticket hypothesis, a unifi...

Aimed at the fatigue performance of aluminum alloy plate with hybrid adhesive-rivet single-sided patch, specimens with four different methods including un-repair, riveted repair, adhesive repair and adhesive-rivet repair were designed and subjected to fatigue tests. The finite element models of spec...