The Tracked wheel vehicles which have the similarity with wheeled vehicle in nature are derived from wheeled vehicle, but tracked wheel vehicles greatly improves the vehicles’ obstacle crossing ability. This paper establishes the mathematics model of the tracked wheel vehicles, the simulation model is...

The corrosion behavior of rebar HPB235 in 1.5 wt.% NaCl solution was studied, and the mechanical properties before and after corrosion were tested. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HPB235 increases and the corrosion becomes heavier....

The hypoid gear pair is a main part of driving axle and it is one of the main sources of vibration and noise in the automobile transmission. Study on mechanisms of vibration and noise of the hypoid gear pair, and investigating on reducing its vibration and noise are of great significance. Firstly, a...

The vibration and noise of the motor is a significant factor to evaluate the quality of the motor and the modal analysis is one of the main approaches to study the structural dynamic characteristics of motor. The motor will be in the resonance state when the excitation frequency of the harmonic electromagnetic...

The double slanted cantilevers are used in some micro-structure designs, which have some unique characters. In this paper, the mathematical model of the double slanted cantilevers with irregular cross-section was investigated based on the theory of material mechanics. The moment of inertia and principal...

This paper is focused on orchard vehicle rollover and tipping problems in its operation process. Firstly, seven degrees of freedom orchard vehicle ADAMS model is established. And then, it built up a driving stability control algorithm to adjust input speed by real-time pitch angle, roll angle and other...

Double-stator permanent magnet motor (DSPMM), with special structure characteristics, has many excellent performance features. Firstly, this paper researches the structure parameters of the DSPMM, including the air gap length and pole-arc coefficient. According the research, a DSPMM of the same size...

For the end effect produced in the decomposition process of empirical mode decomposition (EMD), based on the analysis on the subsistent method of the wave matching, a new improved method of empirical mode decomposition is founded using a new cut off condition during the process of the decomposition....

This paper mainly studies the electromagnetic vibration of a the three-phase asynchronous motor under no-load condition. A time-stepping finite element model of the three-phase asynchronous motor was built to calculate the transient electromagnetic field, and Maxwell stress tensor method is adopted to...

As the wide application of permanent magnet (PM) synchronous electro-spindle in turning machine, a Siemens 1FE1 built-in water-cooled PM synchronous electro-spindle is taken as a reference, and the electromagnetic design and simulation is analyzed by finite element software Ansoft in this paper. On the...

Referring to the experience of aeronautical manufacturing enterprises abroad like Boeing and Dassault, it is necessary to build the three-dimensional design platform of aircraft manufacturing technology based on the model-based definition (MBD), integrate the existing engineering data of many systems...

The types of internal fault and their influencing factors in GIS are analyzed. The key technologies and researching results of UHF, ultrasound and SF6 decomposition method on site for GIS internal fault detecting are presented, compared with each other and analyzed. The methods of fault location and...

This paper analyzes the "fishing vessel with a diesel-type spectral identity management measures" to implement the former fishing diesel chaotic management Phenomenon, through the Ministry of Agriculture announced 570 fishing boats with diesel-type spectral data analysis, with power, speed is statistical...

In order to reduce the security of time, this paper introduced the action analysis, guided by the economic principle of motion principle, Uses the IEMS video motion analysis software, in the process of security action analysis. By removing invalid move, improve the effective dynamic element, obtain a...

The rotor non-isotropic produced nonlinear vibration of aero-engine in windmilling would cause serious danger to flight security. So the research of vibration character in windmilling should go further. In this paper, the kinematic equation of the rotor/stator/wing system is established based on Jeffcott...

In the field of automobile design, evaluation on the comprehensive performance of using analytic hierarchy process for quantitative processing, analysis and research according to several SUV with about 200000 of automobile power, fuel consumption, safety, price and humanization design, make the evaluation...

Considerable deformation generates when concrete is with long-term loading and creep is one of the most important time-dependent behaviors and needs to be paid enough attention. It is of great important to understand the workability and liability of structures under long-term loading. This paper presents...

In the machine tool manufacturing industry, most of the design is based on previous resources, in terms of similar structure; the traditional mechanical design takes the approach of repeated modeling, but this approach greatly limits the scope of the personnel involved in design activities. It costs...

Industrial Control System (in short, ICS) is an important part of state fundamental infrastructure whose safety concerns national economy development and people’s property and life safety. Flaw discovery is the key of ICS defense. If attackers find flaws in ICS and use them for attack, the consequence...

Establish 3-D geometry model including thoracic-lumbar-sacrum, thorax and pelvis based on CT data in IS patient, and then construct a completely finite element model based on the human anatomy. On the basis research on rapid design method of individual brace, simulate clinical spine stress by reasonably...

In north China, exterior insulation technology is adopted, brings a series of problems such as the lives of outer insulation material and building are different. A new composite insulation block has been put forward to solve these problems. The compressive strength and heat transfer coefficient of normal...

To investigate the transient aeroelastic responses of a folding wing during morphing motion, a time-varying aeroelastic equation in state space is presented. The structural model is established based on the component modal synthesis method. A time-dependent transformation is introduced to establish the...

To improve the classification accuracy of defects, a novel algorithm has been developed based on dual-parameters optimization of the principal component analysis (PCA) and the linear discriminant analysis (LDA). The original defect images are transformed to eigen-defects by PCA which contains all features...

The paper analyses the existing problems of the flameproof diesel vehicle and states battery rubber-tired vehicle will be a development trend in the future. The research status and development trend of the key technologies of battery rubber-tired vehicle are illustrated, and battery vehicle will become...

Gear pump with simple structure, high cost performance, reliable in performance is widely used in engineering machinery, agricultural machinery and so on.With the rapid development of modern science technology and industry, higher request are put forward to gear pump gear transmission .Therefore, the...

In this paper, the vacuum magnetron sputtering coating chamber was as the research object. The three-dimensional model of the coating chamber shell was established by using Sold Works software. The model of the coating chamber shell was imported into the ANSYS finite element software. The finite element...

Fire resistance of tunnel structure is paid more and more attentions in recent years. Lightweight aggregate concrete has low bulk density and good thermal insulation property. This paper is first time to propose the design of lightweight aggregate concrete as fire resistance layer for tunnel. Thermal...

By analysing the vibration response of two mutual coupling structures between three basic elements ‘spring, damper and inerter’ on a single degree of freedom system. Focusing on the vibration isolation effect, the optimum coupling relationship of ‘spring, damper and inerter’ three basic components applied...

With the raised performance of advanced aircraft, hypersonic vehicles are subjected to increasingly severe environment. Very severe elevated temperature and high intensity acoustic loads will cause the thin-walled structures of aircraft to respond in a strong nonlinear large deflection vibration, and...

The energy balance of system is one of the basis for the dynamic design of machine structure. The paper applied finite element technique to machine dynamic design based on the energy balance, in view of finite element model of machine dynamics structure, mean squared deviations of various energy distribution...

Research on Ontology has been widely applied in the various walks of life, but in the machinery industry it’s comparatively rare. Therefore, it is very necessary to carry on the overview of the application of ontology in mechanical industry. Firstly, this paper introduces the basic concept of ontology...

For its special characteristics of water quality, the biological treatment technology for waste leachate and other special sewage is not yet mature. The study took advantage of the characteristics of the UASB reactor and improved the type of three-phase separator, in order to degrade organic pollutants...

With increasing age, the elderly, the special requirements of living space and a corresponding increase in the degree of dependence. This article focus from the functional space housing the elderly begin to analyze the elderly housing designs should be noted that the problem of elderly residential points...