Applied Mechanics and Materials Vols. 457-458

Abstract: Epicyclic gear trains have been broadly applied in engineering practice. In this paper, kinematic chains (K.C.) with single-joint (S.J.) were applied to innovative synthesis of the epicyclic gear trains. The method of the innovative synthesis of the epicyclic gear trains was presented. Not only the epicyclic gear trains in common uses were obtained, but some new types of epicyclic gear trains that are got difficultly by means of conventional combination method were gained. Thereby, a new way has been offered for the innovative synthesis of the epicyclic gear trains, at the same time, a way has also been offered for practical application of some multi-link kinematic chains gained by using the theory of type-number synthesis of the K.C. with S.J.. Examples show that the method presented in this paper is right and feasible, and the method is efficient and practical for the innovative synthesis of the epicyclic gear trains.

Abstract: In order to automatic parametric establish foundation pit finite element model more simple, more convenient, more efficient, a foundation pit fluid-solid coupling finite element analysis software based on automatic parametric modeling has been developed, which fluid-solid coupling and time-effect coupling are considered. The architecture, characteristics, functions and key technology of this software are introduced. Meanwhile, application of the software to CCTV foundation pit verifies the convenient and reliability. The results show that this study has important theoretical significance and application value.

Abstract: For tension roller skidding and motor alarm phenomenon often appeared in the process of straightening. This paper take electromechanical hybrid drive system of tension leveler as example, analysis the control system, focusing on the dynamic tension load distribution, points out that the above situation can be avoid effectively by setting the parameter of tension reasonably. And the same time, speed control and torque control are analyzed in this paper, and it provides a reference for the further study of electromechanical hybrid transmission control system.

Abstract: Digital signal processing is the processing of digitized discrete-time samp-led signals. Processing is done by general-purpose computers or by digital circuits such as ASICs, field-programmable gate arrays or specialized digital signal processors. Information science focuses on understanding problems from the perspective of the stakeholders involved and then applying information and other technologies as needed. The definition of multiple pseudofames for subspaces with integer translation is proposed. The notion of a generalized multiresolution structure (GMS) of is also introduced. The construction of a generalized multiresolution structure of Paley-Wiener subspaces of is investigated. The pyramid decomposition scheme is derived based on a generalized multiresolution structure.

Abstract: In this paper, a new image fusion algorithm based on discrete wavelet transform (DWT) and spiking cortical model (SCM) is proposed. The multiscale decomposition and multi-resolution representation characteristics of DWT are associated with global coupling and pulse synchronization features of SCM. Two different fusion rules are used to fuse the low and high frequency sub-bands respectively. Maximum selection rule (MSR) is used to fuse low frequency coefficients. As to high frequency subband coefficients, spatial frequency (SF) is calculated and then imputed into SCM to motivate neural network. Experimental results demonstrate the effectiveness of the proposed fusion method.

Abstract: Currently ,most of traditional Ant Colony Optimization algorithms that we are using were proved to be some critical issues, such as slow convergence and long time computation, search stagnation etc. A new improved ACO algorithm based on scholarship mechanism to balance between the search data processing and stagnation was addressed.Besides,the improved ACO alorithm was deeply analyzed and proved that the optimal solution can maintain ability for other path detection.The theoretical analysis and comparative experiments demonstrate that the imroved ACO has much better performance and can be used to solve the problems of convergence and search stagnation efficiently.

Abstract: in order to improve the speed and accuracy of monitoring data of hydraulic components,improve the method and efficiency of data storage management, hydraulic components data monitoring and management system based on network real-time monitoring were researched.system uses the ADLINK PCI-9114 data acquisition card collecting signal the sensor transferring,then transfer the signal to the computer on the scene.Temperature,pressure,flow and other signal data acquisition,data analysis,data storage and alarm functions were realized through the LabVIEW software.The system also achieved real-time remote monitoring by B/S structure.Compared with the existing hydraulic control system,the system integrated data acquisition,data analysis,data storage and alarm function and realized the remote real-time monitoring,also have a good interface of humanization design.So it can be applied to the field of hydraulic components data acquisition.

Abstract: In the elder Monitoring System, the improved IEEE802.15.4e network is in use. In order to deduce the energy consumption, modifition is introduced to the CSL mechanism of the protocol of IEEE802.15.4e. In the CSL mechanism, short interval, which is less than the channel sampling, is applied among the arouse frame sequence to wait for the acknowledged frame. Besides, a immediate response to turn on the receiver to wait for the data frame and quick switch back to the state of the next cyclical dormancy. In this way, the energy consumption problem is better solved, which greatly expand the life of the tumble detected terminal, compared with the same device worked by means of the other wireless network. Key words: IEEE802.15.4e; CSL mechanism; low consumption

Abstract: Aiming at the performance evaluation of mixed-mode sensing interface of the integrated-sensor RFID system, an integrated-sensor RFID system was constructed. Then the mechanism of performance evaluation of mixed-mode interface was analyzed. According to the validity and reliability principle, a mixed-mode interface performance testing model was established. Moreover, a Plug-and-Play performance testing method was presented. Finally, the physical platform was set up to test the reading speed and the recognition rate indicator in Plug-and-Play process. Results showed the reading speeds of two STIM maintained at around 656.56ms and 645.24ms steadily during Plug-and-Play process whose Bit Error Rate was 10e-9. Experiments indicate that effective transverse comparison of performance of similar products could be implemented by the proposed method in static environment as well as dynamic environment.

Abstract: A new important theorem for function expansion and a new infinite series based on the new expansion is proposed. Unlike constant derivatives at a point by Taylors expansion, the terms are functions associated with derivatives. The expansion generated by a function is not the form of polynomials, which is different from Taylors expansion. Some application examples are given to show that the region of convergence is much larger than that obtained by Taylor's Series. As a kind of application, a new learning algorithm based on the new expansion for training neural networks is also proposed. The weight functions using the new expansion are more suitable for training those patterns obtained by some rational problems.