The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
On behalf of the entire MACE organizing team, it is my great pleasure to welcome you to MACE 2010 in Wuhan, China. This is the first edition of this annual conference on mechanic automation and control engineering.
Image fusion aims at processing and synthesizing information provided by various sensors. Contourlet is a novel multi-scale geometric analysis tool; it provides many advantages in comparison with conventional multi-resolution analysis. This article proposes a novel method to fuse images based on improved contourlet transform. The fusion rules adopted the local energy method, which can preserve more...
This paper discusses the design of a new type of fast tool servo(FTS) equipment, which has two degrees of freedom(DOF) of linear stroke and rotary stroke, can provide the tool position trajectory of creating the freeform optics in diamond turning with more DOFs. The linear fast tool servo (LFTS) uses the air slide as its support, and it is driven by the linear motor; the rotary fast tool servo (RFTS)...
The following topics are dealt with: CAD/CAM/SIM; construction engineering; environment engineering; instruments; vibration control; intelligent transportation; manufacturing control; automation engineering; materials processing; energy techniques; and mechanic automation.
In order to master the structure of complicated round helical structure such as electric cable, rope, mathematic expressions of components' path of round helical structure during coiling around a drum or a pulley were deduced and the method of CAD was discussed. Depending on explicit expressions of components' path, the complicated forms such as double, triple and more complicated structure during...
Auto-feeding soup machine based on six-bar linkage, which is a kind of feeder mechanism in die casting industry, is simulated and optimized in this paper. By kinematic analysis of six-bar linkage, the design variables and constraints are determined, and objective function and mathematical optimization model are established, that is to pursue the minimum extreme value of acceleration of soup ladle...
The key technology of the advanced variable nozzle turbocharger is the proportional valve control system. In this article, the fundamental dynamic equations of the proportional valve control system for the turbocharger are deduced by analyzing the principle of operation, the mathematical model of the control system is established, and the control system is simulated by using the MATLAB/Simulink. The...
MoldFlow software is used to analyze plastics flowing status during the forming of circular plastic plate. Comparison and analysis is made in four different melt temperatures by MPI software. It fully reveals the outstanding effect of MPI software in the injection system and development of injection mould.
In a single-cylinder gasoline engine for the study, made a simulation optimization method of engine valve timing. After the construction of a simulation model of the engine, the simulation results are compared with the data of engine bench test to verify the accuracy of the constructed model. For improving the engine power performance, valve timing optimization simulation to this model is carried...
As one of the most important means and trends of modern products' design and serialization, parametric modeling is beneficial to the building and management of products' part library so as to monitor the cost. Flexure hinges are the essential kinematic pair in compliant mechanism, realizing motion and transmission of power. The design of flexure hinges is the key to that of compliant mechanism. This...
Interrupt response mechanism and the stream interface driver model of Windows CE 5.0 are introduced. In view of high real-time requirements of NC (numerical control) system, the way how to realize the real-time control of embedded NC system is elaborated from the interrupt disposal process of Windows CE. Stream interface driver is adopted to develop the driver of S3C2440A processor's timer and the...
The static response of an intelligent beam with surface-bonded piezoelectric patches is investigated in this paper. Timoshenko beam theory is employed to study the properties of beam-like structures bonded with multiple pairs of PZT patches. Here, only one-dimensional axial deformation of PZT wafers is considered. A shear lag model is adopted to simulate the interfacial bonding between PZT patches...
The influence analysis of geometry errors on the contact characteristics of ball screw mechanism, such as the contact deformation, contact angle, etc. is theoretically investigated. The results demonstrate that the negative geometry errors of the ball screw result in the decrease of the contact deformation on balls or guiding grooves, and when the negative errors reach certain value there is no contact...
Now the compound surface is applied broadly in the industry production design. So the tool path planning closely related to compound surface numerical control (NC) machining needed to studied in depth. In this paper, a novel cutter location (CL) point fitting method in the phase of post-process is proposed. In the calculation process, the first the initial cutter location points are calculated applying...
The parametric feature modeling technology is introduced into turning simulation modeling, and the related key technologies are studied deeply, the practical NC turning simulation system is developed finally. The simulation instances show: the system has good real-time capability, effective man-machining interaction performance and powerful 3D graphics display ability, and can satisfy the demand of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.