This paper according to the small UAV structure characteristics, the taxiing control structure and control law design are studied and proposed front wheel and rudder deviation control scheme and control structure, analysis, including the front landing gear, pavement condition, brake system, wind and...

A trajectory planning scheme is proposed to satisfy the requirements of maneuver and terminal guidance constraints in the reentry flight for ballistic missiles. The reentry interface circle with the target point as its center is determined according to the range of the reentry phase. Then, a reference...

Photovoltaic power generation because of the advantages of no noise, no pollution characteristics, but also has wide application in the military field, this paper first reviews the current photovoltaic power generation applications in public military facilities, military soldier equipment, small military...

For offshore crane in the operation process, due to the suspension of lifting wire rope belongs to the flexible parts and wind, wave and ocean environment .These cause the load swing .A new type of offshore crane telescopic sleeve stabilizer was proposed .It uses the casing of the rigid constraints to...

First, the author measures the pose of the aircraft model under the help of Laser Tracker System; then, the author creates the amendatory equation on the bases of measuring; At last, the compensation value is input into the control system, a enhanced result can be got. The paper affirms the Captive Trajectory...

High intensity focused ultrasound (HIFU) is the fourth brand-new and efficient means to cure tumour acknowledged by the medical field. China is regarded as one of countries applying HIFU to clinical oncotherapy earliest in the world. However, a considerable part of HIFU equipments which have been put...

This paper mainly introduces a new technology for incremental launching the small curvature radius variable cross-section steel box girder. To solve the difficulties traditional construction method encountered, new incremental launching method, girder curvature adaptation technology and intelligent surveillance...

Intelligent environmental Protection is a complicated systematic project, involving all aspects of environmental management, which is based on the overall situation and also given attention to the details. Hence, it is necessary to make overall planning on the top-level design of smart environmental...

In this paper, a study is done on the rubber-tired container gantry hybrid power crane in order to save energy. Because of the series structure is used in crane hybrid system and working statues of the crane change frequently, a “thermostat + power following “control strategy is used in the hybrid power...

The article is based on precision CNC lathe spindle system of the 170CP06 as the research object.The steady and transient temperature field model of the mechanical spindle is established by using the finite element analysis method.As the heat rate for the load and the convective heat transfer coefficient...

Recently,the number of swimming pool is increasing, the swimming lover is also rising, more and more people love playing and vacation on the sandy beach. According to statistics, the private swimming pools have tens of thousands in our country, and there are many small swimming pools. Many people love...

This paper describes the fundamental theory of true 3D virtual reality which involves the theory of scene structure, modeling and scene construction. It presents the true 3D virtual reality development process, construction basic graphics library of 3D and simplified programming.

In order to optimize the shell structure of the shearer ranging arm, the force of the shearer drum is analyzed, and it used three-dimensional software Solidworks to establish the shell entity model. The structural static analysis of the shell is implemented by ANSYS software. Then it attained the static...

In order to improve parametric design process efficiency, design product is layer-by-layer decomposed into design unit according to the functional, and the design unit is looked as the carrier of knowledge and the object of parameter driving. In order to describe the product structure and integrate design...

In this study, a measurement system is developed for obtaining continuous piston temperatures in working engine by using a voltage recorder. In this paper, authors discuss the sensor package impact of test results in temperature measurement, and measured the piston temperature when the CNG engine was...

In this paper, the design significance of plastic packing machine , the difference between the new and previous plastic packing machine and the advantages of the plastic packing machine is elaborated. The plastic packing machine is composed of the banknotes push and the bill alignment part, plastic film...

Car retarder is an auxiliary braking device. It is very important to improve the driving safety of the automobile. At present, the domestic and foreign research car retarder is mainly based on eddy current, permanent magnet type and hydraulic. Although the traditional retarder can play the auxiliary...

In order to solve the problem of mechanical professional courses classroom boring, designed a new interest linkage mechanical mechanism demonstration teaching aid. The teaching aid comprises five sets of mechanical mechanism, respectively, gear mechanism, Geneva mechanism, slider crank mechanism, an...

By the analysis of the knowledge constitution in the field of valve product design, combined with the CAD system based on knowledge , the knowledge support model is constructed, in which the knowledge support mechanism facing product design process is discussed, the knowledge support mode of each design...

To solve optimization of aircraft vertical tail stealth design under airborne PD radar, the Kriging model based on agent tail stealth characteristics is proposed; Genetic algorithm is applied to optimization calculation based on the tail stealth agent model as objective function and the tail capacity...

Method of Moment is used to calculate vertical tail’s radar cross section(RCS). The impact of leading-edge sweep angle, span and inclination on vertical tail’s RCS is analyzed and then vertical tail’s RCS curves and function expressions with leading-edge sweep angle,span and inclination are fitted by...

A fixed-pitch wind turbine power performance improvement technology was studied in order to solve the problem that the actual output of fixed-pitch wind turbines is lower than the rated output in the plateau areas. Considering with the environmental characteristics in plateau areas, one blade-adding...