Advanced Materials Research Vol. 823

Abstract: Die design and manufacturing are organic unity, primarily owning to its own characteristics. On account of the fact that curves and surfaces constitute the main inner part of die, CAD software can be applied in die designing, plotting and three-dimensional modeling. Additionally, CAPP software could be applied in the scheming of die processing while CAM software in the imitation of die manufacturing. As the intensive research and development of CAD/CAPP/CAM, computers not only offer spacious room for die design, modeling and application but also bring about great prospects for research and development of computer software.

Abstract: Recently, the market share of die making in our country is increasing day by day, which can be attributed to the development of processing and manufacturing industry as well as the deepening of reform and opening-up. At current, die making has been applied in these practices such as manufacturing of electronic connector and producing of workpieces of dashboard. With the arrival of computer age, the die making technology based on Pro/E is becoming increasingly common. With specific cases, this text carry out discussions on the die making which is based on Pro/E.

Abstract: Hand-held tools for the main object of study, start with the classification of the analysis of hand tools, specifically talking about the hand-held tools, human-machine design factors, including the two major aspects:1.Starting from the perspective of the"human" and point out that the hand structure of the human body, including muscle and bone structure is hand tools most closely the human-machine design factors. 2.From the "Tools" point of view, pointed out that product-related factors include the size and shape is the most important human-machine design factors of hand-held tool. Finally, hand tools must be designed to transfer to the center of the design and products of common concern, human-centered design will bring new design ideas and methods to hand-held tool designed. So ergonomics in the design of handheld products have broad application prospects.

Abstract: Based on the concept of bionics design, this paper aims to research the basic theory of bionic design methods, design procedures and the development trend of mini hair dryer, intending to build the bionic design methods in production, pointing out the method of process in order to achieve the bionic goals, appreciating the biological characteristics, record, simplification, painting and biological characteristics of the product design. Hopeing to apply this method to promote other products design and trying to search a fast and effective way for products innovation.

Abstract: At present, China's CNC machine tool widely used FANUC 0i NC system. the FANUC system can be divided into two parts: the control of servo motor and spindle motor action system and control of auxiliary electrical part of the PMC,PMC uses software to realize the control, can be modified online, with the system fault detection and diagnosis.The emergency stop function is to protect the machine safety. Therefore, timely and effective treatment emergency stop fault is the key to improve the reliability of machine tool, but it caused the emergency stop for many reasons, this article mainly expounds the control principle of emergency stop in the FANUC 0i CNC system; the typical fault example was analyzed, diagnosed and eliminated by PMC. As a result, we put forward some solutions to emergency stop fault.

Abstract: This paper introduces some techniques on classifying human activities with inertial sensors and point out a number of characteristics of classification algorithm. The goal of human activity recognition is to automatically analyze ongoing activities from people who wear inertial sensor. Initially, we provide introduce information about the activity recognition, such as the way of acquisition, sensors used and the steps of activity recognition using machine learning algorithm. Next, we focus on the classification techniques together with a detailed taxonomy, and the classification techniques implemented and compared in this study are: Decision Tree Algorithm (DTA), Bayesian Decision Making (BDM), Support Vector Machines (SVM), Artificial Neural Networks (ANN) and Hidden Markov Model (HMM)^[. Finally, we make a summarize about it investigate the directions for future research.

Abstract: A method is presented for gear modeling and simulation based on a hybrid of back propagation (BP) neural network and genetic algorithm (GA). Generally, the method of mechanical design includes building up 3D models and gets them checked in corresponding software, which is complicated and takes much time. This proposed method offers a quick way for designers, which combines finite element analysis (FEA) with a hybrid of BP neural network and an intelligence global optimization algorithm, i.e. genetic algorithm (GA). ANSYS APDL is applied to build up the FEA database, which offers data for study and training of BP neural network. Then, the GA is applied to optimize the process parameters that would result in optimal solution of the BP neural network goals. The case study demonstrates that the proposed method can get accurate results in a short time.

Abstract: The wave compensation crane control system is a kind of artificial intelligence system which can be guided by fuzzy adaptive method and motion prediction model in the paper. Its purpose is to overcome the problem of time-delay in wave compensation actuator and the problem of non-linearity and time-variability in wave movement. A control system based on fuzzy adaptive method and motion prediction model is designed in this paper, including its hardware and software design. Then, a control strategy including the fuzzy adaptive algorithm and the motion prediction model is presented for the control system. At last, by the experimental verification in the crane, the research results show that the whole control system has a good feasibility and adaptability.

Abstract: A new household multi-functional shoe cabinet was designed and prototyped. This shoe cabinet not only maintained the features of multi-function and intelligent control of the traditional one, but also made an innovation in its shortages. Through geometric space analysis and computation, selected rotary shoe rack for shoe storage for its space utilization rate is 1.6 times larger than the traditional one. A fully automatic shoe-cleaning device was designed and prototyped by using profiling mechanism, electronic timers and cam mechanism. Ozone disinfection and PTC dryer were used in shoes maintenance. The results in the performance test demonstrates that this shoe cabinet can accommodated 18 pairs of shoes in common use and clean and maintain shoes of size 34 ~ 45.

Abstract: The planning for four-joint legged hopping robot with two redundant degrees of freedom at the take-off stage is researched. According to the take-off velocity and the boundary condition of centroid motion, the trajectory is planned with variable quartic polynomial interpolation. From inverse kinematics, the motion planning with redundancy characteristic is completed by using the GPM with continuous scale factor. Performance index of avoiding joint limit and optimizing joint driving torque are realized. The data indicates the feasibility and practicability of this algorithm.