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Reverse Engineering (RE) and Rapid Prototyping (RP) were used for manufacturing cream bottle. Points cloud data of cream bottle was accessed by handheld laser scanner firstly. Then, points cloud data was handed by Imageware software and the three-dimensional model was formed by Solidworks software. Finally, the entity model was manufacturing by RP machine. In the research, rapid prototyping was combined with reverse engineering technology, manufacturing cycle was shorten, production requirements, improve efficiency and other advantages were met.

The performance of lock-rope mechanism affects the safe and efficient operation of mine hoisting system directly. The lock-rope mechanism with wedge angle 5° was designed by the mechanical analysis of wedge lock rope. Its entity model was established and the dynamic process of working is simulated by using the ANSYS/LS-DYNA. The results show that the wedge lock rope mechanism has the ability of self-locking. The strengthening institutions can largely eliminate the relative slip momentum between the lock-rope wedge-block and wire rope, which make the movement trend gentle, reduce the wear between the lock-rope wedge-block and wire rope and improve the security of wedge lock-rope mechanism effectively. The local equivalent stress of lock-rope wedge-block and wire rope are both present in the increasing distribution gradually from the upper to the lower.

According to the intersected cross-sections, an automatic method of constructing geological model was proposed. Firstly, in this method, these cross-sections are divided into some unit cells, and the auxiliary lines are increased and sheared by some geological rules in each unit cell. Finally the geological surfaces are created to form geological entities. This method can be applied in constructing geological entity model automatically, which contains the complex geological phenomena such as Pinch-out, changes and so on. This method also can avoid the modeling process of diverse manual way, raises the modeling speed.

With the rapid development of our nation’s economic construction, bulk cement trucks have developed rapidly among the special vehicles. The entity model of the bulk cement body tank was created using 3D drawing software UG. The model’s accuracy was proved through calculation and on the basis of the entity model the strength of structure was analyzed by Finite Element Analysis software Nastran. Lightweight processing of steel material was made to reduce the overall quality of cement truck and the loading capacity was increased under the condition of meeting the design strength. The theory basis on the development research and optimization design of bulk cement truck tank has been provided.

In this article, the entity model of the bearing-rotor system is established and meshed in ANSYS. The natural frequency and vibration mode of the rotor system is analyzed in order to avoid the occurrence of resonance. At the same time, the results showed that not only the location of the unbalance incentive of the system should be taken into account, but also consider the size of the unbalanced force.

Create 3D entity model of the loader’s frame in Solidworks, assemble the frame and then import in ANSYS to get the finite element model of the frame, and use ANSYS to analysis the frame at 5 Static characteristics of different conditions. The analysis indicates that the design scheme of the frame is feasible, but need to increase the stiffness of the structure in some parts.

We use the finite element software Midas FEA to set up space entity model, and discuss various factors including the stiffness of bearing, counteracting force of adjacent beam, the influence of the stiffness of bridge pier on reaction at support. In the practical engineering. Coupling of shear lag, stiffness of beam, bending-torsional coupling and partial load can also affect the redistribution of reaction at support. Through the simulation of the finite element software, we check the support of a railway bridge in Guangzhou city. In the end we found that the stiffness of beam can make the middle support have a tendency to increase. If we take all the factors into account, the force of the middle support will be greater than on the both ends of bearing and the force on the both ends of bearing will be approximately equal.

At present, the most widespread model of development for the Virtools technology is 3DS Max + Virtools, to a certain extent, this limits the application of virtual reality technology in mechanical industry. In order to solve this problem, take the machinery slider as an example, set up entity model using Pro/ENGINEER (Proe), then render the model through the 3DS Max, finally import it into the Virtools platform for interaction design, realize importing and transformation of model from mechanical CAD software to Virtools development platform.

A three-dimensional entity model of storage grid semi-trailer frame was designed using the Pro/E software. The model was transferred into the ANSYS for static strength analysis. On this basis, bionic structure was introduced into design of semi-trailer frame. The static strength of bionic and traditional structure was contrasted under the same conditions of weight.

Establishing bias and central entity model of slider-crank mechanism in this paper, then the bias model is imported into the ADAMS for kinematics simulation, and we can get the sliders law of motion. Then using ANSYS and ADAMS jointly to establish the multiple rigid body and the coupled model of slider-crank mechanism, and carrying on kinematics and dynamics simulation analysis to compare the two simulation results. Through build simulation of the coupled model with UG, ANSYS and ADAMS, the result of this calculation is better to reflect the true movement of the mechanism.

The whole structure of a new hydraulic support is designed according to the special working conditions, and the main parameters on its structure and dimension are calculated based on the whole structure and the corresponding formula about the structure design of hydraulic support. The entity of the new hydraulic support is modeled with Pro/E, and the whole assembling of hydraulic support is accomplished based on the former structure and dimension. Thus the dynamic simulation based on the entity model is done with Pro/E given the simulation data derived from the actual working status, and the screen shot of 3 key time nodes among the whole movement process is got, finally the simulation results prove that the design and three dimensional model are correct and available.

This machine was designed for all-filming double-furrow planting technology. The design was not only meet all membrane double corrugation agronomic requirements , but also "a film with" requirement, technology took effect for longer periods, protect arable land, ecological environment demand, and stable and reliable work and cost savings. According to above requirements, the machine used the built-in power of self-propelled structure, and we chose the optimal scheme from two kinds of power transmission system which we have designed. Import the entity model into ADAMS ,chose cavitate vertex as the measurement object, after the simulation ,output the horizontal displacement curve, speed curve and acceleration curve, and analysis of simulation results, and the results showed that the machine meet the design and agronomic requirements.

According to the difficulties of current China's automobile modeling design,a kind of automobile modeling design method based on rapid prototyping technology was put forward.The method has characteristics that are fast modeling,low cost and easy to modify.The main difference from the current automobile modeling design method is to make use of color pictures to establish the bodys three-dimensional CAD model directly and with the use of rapid prototyping technology to make entity model of the body.

With the upsurge of marine research coming, research of the bionic fish robot is imperative. In numerous kinds of fish, batoid as the representative of the undulating pectoral fins fish are characterized by maneuverability which adapted to the complex underwater environment. This paper establishes entity model, kinematics model and dynamic model of batoid, uses means of numerical simulation to realize batoid turning in the water , and then plans turning motion of batoid. For this simulation, trajectory which is very close to the turning of real batoid is obtained to prove our modeling and simulation correct.

In the software system of reverse engineering, fast surface reconstruction has become an important development trend. This article introduced the realization of free-form surface's NURBS reconstruction and the work flow based on Geomagic Studio, Through the example of Geomagic surface phase shape module and fashion module under 3 different processing methods of case analysis, summarizes the main features of fast surface reconstruction based on Geomagic Studio software, and puts forward the application prospects.

Based on the motion relation between rollers and work piece during cross wedge rolling (CWR) process, roller profile equations for cam forming were studied. A three-dimensional entity model of the roller was established using the profile equations. Process of cam forming by CWR was simulated by DEFORM-3D. The FEM data was used to analyze dimensional accuracy of the formed cam. Results demonstrate that the equations can be used in roller design for cam rolling.

In order to study strength characteristics of pick when cutting different hardness of rock,according to current situation that actual external load can not be obtained easily and load characteristics can not be grasped correctly, establishing flexible entity model of pick based on LS-DYNA,building constitutive model of rock based on SPH theory.Making simulation for the progress of cutting three different hardness (sturdiness coefficient )of rock to get stress changes and statistical data of carbide cutter head of pick.The results of simulation show: the body of carbide-tipped teeth were severe stress concentration ,while ，the corresponding maximum stress is between 365 ~ 628MPa， it can meet the strength requirements，so damages were caused by fatigue；The results provide the theory basis for studying wreck and improving the woking life of pick.

Because both of the volume and the weight of the photoelectric platform are small, the structure of two frames and two axes is used in the photoelectric platform. As the key component of the photoelectric platform, the main frame should have sufficient strength and rigidity. In order to achieve this object, three-dimensional entity model of the main frame is established using CATIA software. Then the finite-element analysis of the model is finished with ANSYS Workbench. Based on the analysis results, the weak links of the main frame is found. Then these links are improved and the main frame is analyzed again. After improving the structure, the results of the finite-element analysis show that the main frame meets the requirements of design and has perfect overall performance.

The theory and drive mode of the underactuated robot grasper have been researched in this paper, and the mechanism has been designed and optimized. The research has been done on statics, dynamics and kinematics. 3D models for all parts are built and entity model of the underactuated grasper is created. The simulation has been completed on dynamics and kinematics of the grasper grasp different object (as staff, ball, rod).

Parameterization design was applied to actuator structural design and three-dimensional entity modeling of brake by wire system. Based on pro-engineering software environment, motor driving entity model of brake by wire system was established. Motion transformation device, force booster device, cylindrical gear decelerate device were included. According to relative motor parameters and structural function of the equation, structural design of motion transformation device, force booster device and cylindrical gear decelerate device were carried on. Under Pro-E entity modeling platform, three-dimensional entity model of brake by wire system was established.

It is essential to consider the proper position and volume of riser during the design of feeding system. In this paper, we are presenting a new method of designing optimal riser in the steel casting processes. A technique of slitting arbitrarily 3D entity model by STL (Stereolithography) was used to obtain accurate values of the partial modulus of casting, and then a mathematical model of the process of the riser design was optimized by a genetic algorithm (GA); with the help of the CAE system, which has an ability to calculate automatically and verify the validity of the optimized results, we will pursue the goal of obtaining the desired riser with optimal size and distribution but without causing any defect in casting. Thus, by combining the numerical optimization with the traditional riser design, our method proposed here will be more practical and reliable. In the end, we give an example to demonstrate the feasibility of our optimized approach in the riser design. Keywords：Riser design, Genetic Algorithm, casting optimization, STL

The entity model of the combining vibrating screen was built and leaded into the multi-rigidbody dynamics software called Adams. Its kinematical simulation and analysis were done, and displacement graphs and velocity graphs of the movement of the mass center were obtained. The movement laws of the combining vibrating screen were revealed. All the researches were done to provide theories to design combining vibrating screens.

In order to overcome some technical problems in 3D modeling and model interaction operation, a new geological reserves calculation method is proposed based on 3D entity model. Firstly, this paper discusses how to infer and link mine rock boundary lines and generate geological profile map with it the 3D entity model of ore body can be constructed. Then, the principle of geological reserves calculation is discussed in detail. The calculation results show that this method is of characteristic of high precision and easy operation compared with the traditional empirical formula and provides a new operation and design platform for engineering designers.

The requirement of constructing the three-dimensional entity model for oral cavity teeth has been put forward to the research of the orthodontics based on rapid prototyping technology. This paper compares the merits and demerits of the CT scanning and the structured light scanning and finds a method of acquiring the digital model of oral cavity teeth based on the point cloud. Adopt the structured light scanning technology and 3DSS software to acquire the files of the point cloud data, and introduce the files into GeoMagic software. After processing the data files we obtain the high-quality digital model of oral cavity teeth. The optimal scheme and the processing procedure of the point cloud data in GeoMagic software are described in detail in the paper. In addition, we compare the final solid model and the point cloud data and analyses the errors.

Wood powder disintegrator used in fuel is key equipment in production of wood powder used in fuel, and virtual prototype technology is introduced. Some components for the wood powder disintegrator used in fuel such as spindle component, fixed cutters component and braking device are completed three-dimensional entity model by using many soft wares as Pro/E. Wood powder used in fuel after being produced is carried out size detection, and its average size may arrive at 108.21μm, and its size may fully complete with requirements for wood powder used in fuel. Therefore, it can provide a new method to optimize structure of wood powder disintegrator used in fuel according to studying further based on the virtual prototype technology, and there are not only real economic significance and but also broad application prospects.

We establish the entity model of groove beams in Midas FEA. Then we compare and analysis the shear lag effect of prestressed reinforcement caused in different locations. It can provide some suggestions for prestressed rib of groove beams. The result shows that when the prestressed steel beam is located in the middle of small beam, the effect of shear lag is maximum and the shear lag effects of prestressed in two ends are similar, Prestressed reinforcement can be arrangement refer to the results.

In this paper, the hydraulic press to assemble the coupling is designed after its structure characterisdic and work method is introduced. The press mounting device is used to assemble the coupling of a small generator drived by hydraulic oil. In design, the entity model is established using 3D design software Pro/E, and the dynamic and kinimatic characteristics of the virtual prototype of the hydraulic press are simulated in software ADAMS. Thus all kinds of design defects are deleted at the initial stage of the design, the design period can be shorten, the efficiency of design can be raised, and the best and innovative products can be obtatined.

This paper presents a study of products design and development using virtual modeling system. By means of specific cases, it illustrates the design and development process of products from concepts to entity model, and then to massive production. Besides, it summarizes the advantages of this method, such as the free-expression modeling, lower costs, shorter development cycle, non-information cut-off, environmentally friendliness and so on.

Double-tube buckling restrained braces with contact ring is a new buckling-restrained brace (BRBs), and is a refinement of double-tube buckling restrained braces. Based on the theory of the finite element method, the finite element entity model of double-tube buckling restrained brace with contact-ring has been made. The double-tube buckling restrained braces is systematically analyzed and computed. The analysis results indicate that this kind of buckling restrained brace has good energy dissipation and restoring force characteristics, and can overcome the difficulty in connection.

A new type of 5-DOF drill grinder based on the tripod parallel universal wrist is introduced. Due to the simple mechanical structure comparing the grinder with the existing conventional CNC machine tools, it should be easy for the PKM to manufacture at a low cost. Aiming to solve the problems of selection of driving motor parameters for this series-parallel hybrid drill grinder, the three-dimensional entity model of this machine tool is established by means of UG software, and then the assembly model is introduced into ADAMS/View. The dynamic simulation is conducted and the driving forces of all driving links are found. The dynamic properties of the drill grinder are thus obtained, which provided an important reference to the selection of motor.