According to the structural characteristics of the bottle cap, this paper analyzes the structure and the key technology of the die design Respectively, using Moldwizard module and Pro/E mold design facial cleanser injection molding mold design, local mosaic of concave die design is proposed.

The virtual design and manufacturing is applied in the field of virtual reality technology in manufacturing. The virtual assembly is a part of the virtual design and manufacturing, it is based on the virtual reality technology, the computer modeling and simulation technology is used to establish the...

A fast method of aerodynamic computation (FMAC) is put forward for compound gyroplane. It combines advantages of the blade element momentum theory and the engineering estimation method. To fast obtain aerodynamic characteristics of the compound gyroplane, the FMAC simplifies the interface between rotor...

With the development of science and technology and the progress of the society, the wearable lower extremity exoskeleton robots become more and more popular. In the paper, on the basis of market research and the theory of ergonomics, design sizes of the lower extremity exoskeleton have been determined....

Lower limb rehabilitation exoskeletons worn on the outside of the body, which has many features such as wearing comfortable, using safety, efficient rehabilitation training and etc. Structural performance of the exoskeleton determines the overall quality. In the paper, the concepts of the finite element...

In order to get the anthropomorphic robot accurate parameters of the upper limb joint control motor, a method based on Ziegler Nichols-frequency response of the adaptive PID controller is proposed. The control circuit identifies online important critical frequency response characteristics of process...

The initialized geometric parameters for three main working device components of the hydraulic excavator SY205C – 8s including movable arm, bucket arm and bucket are designed based on relevant design manual. And the geometric models are designed by the application of UG. The design principles followed...

On the basic of nonlinear model of pitching channel of airship, assuming the condition that the information of the unknown portion of the assumed airship model satisfy the norm-bounded condition and the boundary is known. A adaptation method has been used to solve the unknown information problem in this...

The airship modeling is the basic of the airship control problem. Based on airship modeling of pitching channel of airship and its nonlinear model, an traditional PID attitude angle controller of airship is designed. Finally, this control method is proved to be effective by numerical simulation.

The airship modeling is the basic of the airship control problem. Based on airship modeling of pitching channel of airship and its nonlinear model, an traditional PID altitude controller of airship is designed. Finally, this control method is proved to be effective by numerical simulation.

The airship modeling is the basic of the airship control problem, a class of simplified nonlinear model of pitching channel is studied in this paper. On the base of all above mentioned, the speed control is separated from the attitude control, and the speed is controlled by a simple constant control...

Many varieties of ammunition can not adapt the tactical requirements and are eliminated. The processing of scrap ammunition is a long-term task. Foreign ammunition destruction situation and the principle of ammunition weapon scrapping destruction are expounded detail in this paper. Destruction of ammunition...

Scrap ammunition processing activities have a lot of security risks. It is a strong technical and high security requirements professional activities. The decomposition of scrap ammunition is the technical operation process that uses certain technical method to remove the original structure and function...

The processing of scrap ammunition is an activity that reduces scrap ammunition dangerous properties and solves the problem of ammunition security retirement by the use of various technology methods and means. The foreign ammunition destruction situation and ammunition destruction at various stages are...

A design system for the sprout vertical cultivation device has been developed with Visual Basic and SolidWorks redevelopment technology. This system features a simple user interface and easy operation. Practical applications show that the system can work out the manufacturing materials required and update...

For the dynamic and changeable market environment and personalizedproduct requirements and other new rapid changes of production demands, a new method of reconfigurable assembly line for mass customization is put forward. In this paper, firstly introducing its background, the current developing condition...

The model of parallel-oriented compliant mechanism was established. Analysis of parameters for elliptic flexible hinge plane compliant mechanisms was illustrated. The relationships between the system frequency and the flexible hinges shapes, geometry parameters, material parameters were discussed by...

For conventional BLDCM direct torque control strategy existing many disadvantages, for example, flux ring observation algorithm is complex, electromagnetic torque ripple is too large, the current waveform is not ideal, high switching frequency and large switching losses are also serious, designing an...

In modern vehicles, part of the DC motor driven components use DC motor with hall of memory function, it is using the square wave produced by the Hall sensor as dc motor position feedback signal of the mechanical parts , these parts should pass position memory test to determine whether qualified after...

The original damping skyhook (SK) vibration control method needs to determine the absolute velocity of the sprung mass, however, the absolute velocity is impossible to measure for a running vehicle. The modified damping skyhook method (MSK) instead uses the derivation of acceleration of the sprung mass...

To study a self-propelled cable-controlled vehicle’s movement, operation and control, the function of its cable’s towrope resistance is needed. Through calculating towrope resistances of the vehicle under different cable release lengths, the functional relation between the vehicle’s movement location...

a function of automotive exteriors, automobile skylight from the early applied to high-end models, development up to now, have become more popular in the car at all levels. Enclosed is the priority study of automobile skylight, the sealing test is becoming more and more attention ,in modern society,...

Under plane wave conditions, the ultrasonic pressure could be derived by the detected displacement with a stabilized homodyne interferometer, and then compare with the voltage output of the hydrophone, it could calibrate the hydrophone. Generally, what is noteworthy is that the disfigurement of the homodyne...

Create three-dimensional model of backrest adjuster's transmission parts by using CATIA, and then, the model was imported into the dynamic simulation software ADAMS. based on multi-body system dynamics theory and the ADAMS, dynamics research and analysis are carried out for backrest adjuster's transmission...

There are thousands of truck modelsin the market. It is necessary to study the distribution characteristics of motor power since the rated power mismatch is a very serious problem currently.The truck models of maximum total mas range from 5 tons to 7 tons have been analyzed. Construct statistics for...

The horn is one of the essential parts of the car, the main function is to alert pedestrians and surrounding vehicles around the vehicle, to protect the safety of the pedestrian and vehicles. In the paper, the pulse commands to control the servomotor drive and limit of the limit switches to control both...

In order to improve efficiency of modeling glaze layer thickness distribution via air spray, a novel fast modeling method was developed which oriented to glaze spraying process parameters. According to analysis of the affecting factors of glaze layer formation, apply the software of the Fluent was utilized...

As the important component for bearing collision in the front of the vehicle, the cowl inner panel has complex shape features such as bulges, reinforcing ribs and holes. When the panel is formed, defects of wrinkling, cracking or incomplete forming will occor. The drawing die is designed for a certain...

Barrier gate is to achieve the efficient management of cars in and out of the entrance. In this paper, we design the crank-rocker mechanism and the whole structure of the barrier gate. In order to avoid the resonance of the box body and motor exciting vibration frequency, the modal analysis is carried...

Aimed at the complexity of the fault diagnosis of radar servo system on the ship, the pater puts forward the method of fuzzy fault tree analysis. The paper constructs the fault tree for antenna not running. And then the quantitative analysis of the fault tree is accomplished by founding models such as...

Firstly, using the Hilbert-Huang Transform (HTT) methods of data for the empirical mode decomposition (EMD), so as to extract the Intrinsic mode function (IMF) of the signal , and then do Hilbert transform to get the Hilbert spectrum of the signal. The method has great advantages to non-linear and non-stationary...

Dual-stator toroidal motor is a new style of motor, it integrates power and drive. The electromechanical coupled model is built based on the operating principle of the motor. The transfer function of the motor system is derived. In consideration of the response characteristic of toroidal motor, a speed...

In order to study on the multi-teeth meshing phenomenon of involute internal gear pairs with small tooth number difference, precise entity assembly models of internal gear pairs are established, finite clement analyses for the multi-teeth contact problem are carried out, characteristics of the tensile...

Converting the customer’s need into product requirements and making effort to realize the initial need in all phase from concept design to serial product is the key that automobile can fulfill consumer’s need before introduction to the market. Applying quality function deployment to summarize the customer’s...

This article designed the packaging box of CJX2-150 contactor through observing the size, shape, weight and test the property of the contactor, briefly introduced the procedures from design to modeling of the packaging box. The idea of the packaging design, the components of packaging, and the notes...

The intermiscibility between product and customer and the subjective impression customer have to the products are related to the quality of product packaging. This thesis talked about the student pencils packaging; Designed the packaging box of student pencils with cartoon image according to the hobbies...

In the world, pencils are more and more widely used, which meanwhile leads to the constant increasing of resource consumption. Because the main raw materials of pencil are wood and graphite, numerous wood and graphite are used for pencils every year. However, pencils are always not utilized well. Amounts...

This paper takes soybean milk machine as an example. Nowadays, soybean milk machines on the market all adapt rotational flow to cut the beans and electric heating tube to heat. Whether they have filter nets or not or the beans are dry or wet is not the main factor to classify soybean milk machines. Instead,...

Mid-Autumn Day is a traditional festival in China, during which it is a Chinese conventional custom to send and eat moon cakes. It has become a kind of economic law that businesses sell moon cakes with the help of Mid-Autumn Day and the sales of moon cakes largely depend on the packaging. As an important...

This report is to do a research on kitchen knife because of the recession of kitchen knife market in recent year. Using the method of interview is to collect the data information from 15 participants. Data analysis and key results find that kitchen knife, to some extent, needs to improve its working...

Books are the carrier of human civilization with the help of words, symbols and graphics to record the human thoughts and emotions which telling the historical development process of human civilization. As an important part of books, book binding plays a very important role and has the independent aesthetic...

Portable computer modeling design is mainly about different shape elements on decomposition and combination, including dots, lines, surface, body, color, texture etc. In order to make all the shape elements to be highly harmonious and acceptable, computer producers have to use the methods of unity and...

The innovative computer design takes advantage of the theory of industrial design, design psychology, material science, ergonomics, computer aided design concept, also combined with designer’s feeling and understanding of many years working on the edge of design field. This new design not only considered...

Under the background of rapid development of modern science and technology, I make a theoretical and depth analysis on both physiological and psychological demands of lamp users to explore a more suitable feasible scheme through researching and analyzing the lamp which adapts human and social life best...

Creative lamp also has a relatively high popularity rate, while because of the issues like larger volume, inconvenient carrying as well as dizziness glare caused by improper operation, they equally provide development opportunities and prospects for the creative lamp industry. With the development of...

Architectural accidents caused by differential settlement of foundation occured regularly in countries. In order to better understand the influence law on upper frame structure caused by differential settlement of foundation and reduce the occurrence and damage of accident in frame structure, this paper...

Torque Converter Clutch (TCC) works longer than ever before because of slipping technology intervention. The friction coefficient of TCC friction plate will change with temperature. In order to get the dynamic friction coefficient and also ensure the friction plate temperature not too high, TCC temperature...

Amphibious vehicle for water resistance are complex and difficult to accurately estimate oh, analyzing the force characteristics affecting water sailing by sailing amphibious vehicle posture resistance characteristics of the vehicle. Amphibian Vehicle analyze the composition of the water resistance,...

At present, most of the factories carry materials by hand about ceramic. This paper designed the structure of the product with the automatic pick-and-placing manipulator as the research object. Furthermore, it applied 3D model and motion simulation to the product through SolidWorks. Then it gave a design...

The paper aims at the frequency analysis problem of the uncertain structure, takes the space beam structure with interval parameters as the research object. An expression of the relationship between the structural natural frequencies and the interval parameters is presented. With the partial derivative...

This paper studies the globoidal indexing cam mechanism of tapered rollers and deduces the contour equation of the globoidal indexing cam of tapered rollers using the spatial meshing theory and rotation matrix. The paper focuses on the processing difficulties and a solution of a cutting tool controlling...

Tunnel exploration is a kind of method with high efficiency and economy, but special tunnel exploration drilling rigs are scarce. ZDY1900S type all hydraulic tunnel drilling rig is a kind of equipment designed for tunnel exploration, also can be used to drill gas drainage holes, water exploration holes...

To fulfill the requirement of the torque transmission for the medium and small displacement vehicles, design a magneto-rheological fluid dual clutch (MRDC). MRDC adopts magneto-rheological effect of magneto-rheological fluid (MRF) to transmit torque. Only by changing the current in the coil, the separation...

To transmit a large torque and solve the effects of high speed rotating conditions on the properties of magneto-rheological fluid (MRF), a multi-cylindrical magneto-rheological fluid clutch (MRC) for B-class automobile is designed. The expressions of transmission torque are established. A sample MRC...

At a time when the whole medical level is promoted, the most commonly used intravenous injection products have not changed much, in the meanwhile many problems arise. Based on the barrier-free design concept and eco technologies, through the eco-criticism aspect and the environmental ethics aspect, the...

With the development of society and economy, to meet the people's life,the urban construction is to rise.Amongthem, as an important part of civil structures, prestressed structure with good technical and economic indexes and the widespread usage is widely used in various fields of urban construction.Being...

Thinning is one of the main reasons that caused parts scrap, the geometry size is not accurate and the finished part has a poor quality in the process of cold stamping. Based on the orthogonal experiment method, LS-DYNA software is used in this paper to carry on the deep drawing process of box parts...

Non-uniform factor of wind pressure is used to express distribution unevenness of wind pressure acting on the conductor at same time. USA, Japan and Germany etc developed countries have carried out many field measurement about it. Field measurement research in China is less, it is also found during actual...

The hand-held excavator was particularly designed for artificial excatating pile drilling. It consisted of a motor, a gear reducer, a drill stem, a frame and a drill bit. The drill stem was an important component of the hand-held excavator. In order to improve the drilling speed of the excavator, the...

SVC is a world-recognized mature and effective dynamic reactive power compensation technology, has been used widely in the world. Through the efforts for more than a decade, Chinese manufacturers have mastered complete SVC technology, own independent intellectual properties, have exported products to...

Electric vehicle traffic accident frequency, in order to solve practical problems, so we design and develop electric bicycle testing platform. Around the power, speed, axle load, such as technical indicators, according to the national standard of electric bicycles, electric bicycles in all kinds of parameter...

According to the structure of hydraulic mounting and working principle of the electro-hydraulic servo test bench, established the system model constituted by HEM and test bench, then did the simulation analysis and experimental verification for the vibration system, the results show that the model is...

A three-dimensional W-M fractal sliding model of double rough surfaces was established, and the factors of interface shear strength influenced the whole sliding process was considered. The maximum shear stress of sliding processes were analysed using the finite element analysis and taking into account...

Hot pushing pipe bending, horn mandrel, elbow pipe, Archimedes spiral cord.

Since the laser beam divergence angle is very small, and there is no scattering effect in the space, the positioning technology of laser source is a difficult problem in the field of laser detection and interference. In this paper, a new method based on the scattering of the laser beam is presented,...

This paper is meant to put forward and design the third sweeping brush structure which can clean curbstones, corners of walls and etc., optimizing the cleaning structure of the domestic small-sized all-electric cleaning vehicle. The new structure can expand the cleaning area the original sweepers cover,...

Determining the parameters of angular contact ball bearings under preload is the key issue to improve the accuracy and performance of high-speed spindle. The impact of gyro force and centrifugal force were considered, a static and a dynamic model for angular contact ball bearings under rigid preload...

In the last few decades, rectangle earth pressure balance shield machine have been introduced as primary tunneling tools in soft soil excavation around the world. This paper presents research on the performance of the rectangle shield machine. Analytical studies have been carried out to establish the...

With the rapid development of science and technology, three-dimensional modeling technology bridges will continue to progress, which is widely used in bridge engineering, bridge design can contribute to enhance the quality, thus contributing to the sustainable development of the bridge project. Three-dimensional...

Rutting is one of the most challenging and important distresses in steel deck pavement. The prediction of rutting depth is considered to be one of the most complex issues in pavement engineering. In this study, a large piece of linear track accelerated loading facility MLS66 was used to conduct the test...

This paper establishes the three dimensional laminar mathematical physical model of dew point evaporative cooling in plate heat exchanger, according to the simplifying assumptions of the complicated course for heat and mass transfer and counter-current flow in dew point evaporative cooler ,using the...

Life prediction of parts under complex loads has always been an important research topic in mechanical engineering design. In order to make the results more accurate, the stress correction formula for the asymmetric cyclic stress is derived mixed strength degradation law and the characteristics of 45...

This paper puts forward the highway tunnel electromechanical devices’ operating parameter monitoring system is composed of two parts: monitoring network and monitoring management system. Monitoring node puts monitoring data into the database while Monitoring management system chooses MySQL database under...

By using fluid dynamics calculation, we start a numerical simulation research on flow fields of cylindrical and conical nozzle in order to choose a better structure of cementing ground anchor, at the same time, we also do hydraulic cycle experiments on cylindrical nozzle with different bore diameter....

As a key device to coal mining, the hydraulic pressure support is important for the safety of coal mine. Currently, most of design software for hydraulic pressure support are stand-alone version and only capable of fulfilling partial design work. They have been used for a long time and lacked software...

The unsteady flowing property is complicated in stirred tank, so Computational Fluid Dynamics (CFD) is used to simulate the three - dimensional flow in this paper. Taking the steady-state solution as the initial condition of the large eddy simulation, flows in stirred tank are analyzed at different time....

Unsteady flow and the interface distribution in the stirred tank are studied by the large eddy simulation and multiphase flow model. The result shows that the two-phase interface starts from the paddle. Finally inverted cone interface is generated by the screw move. With mixing time passing by, the interface...

The finite-element linear analysis model in the typical rotor system is established by finite element method to analyze the modality and critical speed. The result shows that modes of vibration change greatly with different modalities in the rotor system. Torsion angle of the rotor increases gradually...

Based on the theory of contact non-linear finite element analysis, the analysis for stress and strain of the connection thread of centralizer is carried out by ANSYS software. The structural weak part was identified. The method of simulation experiment is adopted. The simulation results are compared...

In this paper, FSAE race car is taken as the research object, dynamic performance of the suspension system is studied. 3D model of the whole vehicle suspension system is built by using 3D modeling software, and the kinematics simulation is carried out. On the basis of this, ADAMS is used for dynamic...