Advanced Materials Research Vols. 631-632

Abstract: Through CAXA finishing methods, based on the geometric factors of the formation of surface roughness, this article proposes optimization control strategies of curved surface roughness. The study was focused on the optimal selection in curved surface processing methods, row spacing, milling cutters, feed and cutting speed. The experiment verified that the developed optimization control strategies were feasible.

Abstract: By means of the QLVC-ZSA1 vibration signals analyzer and an acceleration sensor, three experimental schemes, (1) different spindle speed and (2) different feed rate for the first half and the second half of the same feed length, and (3) three successive feeds under the same turning parameters, were designed to study quantitatively the vibration responses of the cutting tool in the turning process by the numerically controlled lathe. The study indicated that (1) with the increase in the spindle speed and feed rate, the maximum self-power spectral density of the tool vibration also increased, while the corresponding vibration frequency decreased; (2) with the increase of the material removal during the turning, the maximum self-power spectral density of the tool vibration displayed a increasing trend and its average value varies from 5.0 to 9.0 , and the frequency of the maximum tool vibration energy concentrated at the about 3750Hz.

Abstract: According to the problem of traffic congestion, intelligent vehicle and intelligent transportation system came into being. This paper mainly introduces the development of intelligent vehicle (IV) and intelligent transportation system(ITS), summarizes the active safety system, expounds the research content of ITS, and makes outlook for the development direction of ITS and IV.

Abstract: In order to improve the flower-seedling transplanting from trays to pots, an automatic transplantor was designed, the key components of which included the grasper, transit unit and the controller. The grasper for holding the seedling root, was optimized based on the analysis for the grasp force, and it was adaptive for trays of varied size and non-destructive for the seedling. The belt-gear unit was adopted to drive efficient seedling transit, besides the multi-motor control system was built. Finally, the test for the grasper and the control system showed that the control system worked well when 600-1000 cycles per hour were finished, and the grasper performed perfectly when the less than 800 seedlings per hour were transplanted.

Abstract: Cupped wave gyro’s mathematical modeling is derived via Hamilton principle, and the displacement equations and the nature frequency of gyro is determined by Galerkin method. Based on the modeling analysis and finite element method, the parameters of structure are optimized. The paper provides a reference in the design and fabrication of cupped wave gyro.

Abstract: This project deals with the monitoring the combustion quality of the power station boilers using Artificial Intelligence for improvement in the combustion quality in the power station boiler. The colour of the flame indicates whether the combustion taking place is complete, partial or incomplete. When complete combustion takes place the flue gases released are within the permissible limits otherwise its level is high which is out of limit. By analyzing the flame color which is captured using infrared camera and displayed on CCTV the quality of combustion is estimated. If combustion is partial or incomplete the flue gases released will create air pollution. So this work includes enhancement in the quality of combustion, saving of energy as well as check on the pollution level. The features are extracted from the flame images such as average intensity, area, brightness and orientation are obtained after preprocessing. Three classes of images corresponding to different burning conditions are taken from continuous video. Further training, testing and validation with the data collected have been carried out and performance of the various intelligent algorithms is presented.

Abstract: The article is put forward to using fuzzy control to improve brake stability, designing the fuzzy controller of automobile braking stability, determine the yawing moment control strategy. The simulation experiment indicates that braking stability of automobile that using fuzzy control has a good stability and security, the proposed control strategy can make automobile quickly recover to the expected driving lane after partial drove and maintain a good braking performance, the research shows that the proposed braking stability control strategy is effective and has certain significance for improving the safety of the automobile driving.

Abstract: It is common to use space arm for maintaining and assembling. The major technology problems to solve first are the deformability, the soft and tightening contact with the target. Use ER as the contactor of end effector which is learned from the space station end effector can overcome many problems, as the poor location precision and uncontainable attitude which is bring by the big space arm. The design of multi-DOF Deformable-Contact-Surface-Based shape adaptive end effector is introduced in this text. The simulation result by Matlab software proves the design not only can tight connect the target, but also can suppress vibration and meet the precise demand of location, precise force control and deformability. It can meet the multi-mission in the future.

Abstract: The feed-forward adaptive active noise control (AANC) system is presented. Firstly, the hardware project of the system is brought forward, by selecting TMS320C5509 DSP as the controller. Then, using the mixed language, the active noise real-time control system is realized, based on the FXLMS algorithm. It’s proved that a good noise cancellation is achieved by the experiment.

Abstract: Smart primary equipment as typical components and structure basis of intelligent substation. Intelligent components which is the core component of smart primary equipment, will be the access platform of various smart unit, and smart unit will be the applied terminal of specific intelligence technology. This paper designed a general intelligent component platform, the module structure and configuration program of the intelligence components are given. Meanwhile, the use of The real-time operating systems was used to to manage the cooperative work of intelligence unit, so as to meet the various requirements of the general intelligent equipment. Finally, the real-time validation of the smart component platform was carried out by the GOOSE message. The results meet the requirements of IEC61850 standard and provide a reference for the further research and development of intelligent components.