Applied Mechanics and Materials Vols. 170-173

Abstract: This paper mainly introduces the application of simulink in structural vibration control and simulation. It introduces the method and procedure of using simulink to establish the control simulation program.Thus obtained, for the establishment of whole shaking table control system and the simulation of control system, simulink has unique advantages, it is the best software for the research and development of the shaking table control system.

Abstract: The paper presents a secure authentication method, which is based on dual-interface security smart card, for remote payment in e-banking. With the method, the traditional USBKey can be replaced. Thus, a considerable cost for allotting USBKey can be saved, and people will be more convenient to do online transaction in e-banking.

Abstract: Artificial Neural Networks (ANN) has seen an explosion of interest over the last few years. Indeed, anywhere that there are problems of prediction, classification or control, neural networks are being introduced. Hence, the main objective of this paper is to develop a model to predict the response of the soil-structure interaction system without using the calculate code based on sophisticate numerical methods by the employment of a statistical approach based on an Artificial Neural Network model (ANN). In this study, a data base which relates the impedance functions to the geometrics characteristic of the foundation and the dynamic properties of the soil is implemented. This leads to develop a neural network model to predict impedances functions (all modes) of a rectangular surface foundation. Then the results are compared with unused data to check the ANN model’s validity.

Abstract: Reinforced concrete (RC) shear wall component is a very important lateral force-resisting member which is widely used in China. Its seismic behavior has a great impact on the seismic performance of the overall structure. Damage of some RC shear wall structures under the earthquake is caused by the damage of shear wall components, So shear wall components are an essential seismic members. However, the test datum are not enough to study the performance of RC shear wall components, Therefore, Finite element simulation of RC shear wall components is performed by software ABAQUS in the paper. Through comparing with the finite element simulation and the test of load - displacement skeleton curve, failure mode and steel bar strain, the result shows that the finite element simulation can more accurately simulate the situation of the test, verifying the finite element simulation is the most important research tool besides test.

Abstract: Tipping rain gauge is used for rainfall information collection in the most current weather stations. In view of this situation, a new type of rainfall information collection system named the laser raindrop spectrometer is designed by using optical methods combined with ARM9 technology. The system uses a square wave modulation of the laser and processes the received signal through the FPGA and ARM9, and derives rain rate, size, density, rainfall and other information through a unique algorithm. It solves the tipping rain gauge’s situation of "do not turn to win rain, light rain without turning ". Experimental results show that the system is stable and reliable. It not only can be used to measure precipitation, but can identify weather phenomena. So it has a certain practical and promotional value.

Abstract: Relying on cloud computing concept and based on engineering theories and practical conditions to change from the traditional management concept based on engineering object division to the post-centered EPC new mode; realize real-time automatic and intelligent acquisition and processing of the project data and information, synchronic evolution of management system and works progress and full sharing of information resources in the system; establish all-service operating system through three steps, i.e. rebuilding of management structural system, intellectualization of management system and building of knowledge discovery model. The new mode can effectively improve the overall management level of the project, systemically prevent engineering risks and reduce cost of project construction and management in the long run. The development of cloud computing is of great significance to the management of construction and engineering industry in respects of intelligent completion of business functions within management system, free transition of business modules and convenient alternation of supervision hierarchies and means both inside and outside the system. Especially in field with serious project corruption, replacing the existing management mode with a new type intelligent, self-organizational and all-service EPC mode can greatly reduce the interference and impediment of human factors.

Abstract: The second development of Duncan-Chang － model suitable for geomaterials widely used home and abroad is made in ADINA with FORTRAN. The applicability of User-Defined Materials in ADINA is proved by engineering case.

Abstract: DDA(Discontinuous Deformation Analysis) was used to study the mechanical characteristics of coarse granular material (CGM). The numerical simulation model was found consulting the two Dimensional test of CGM,and the stress-strain curves obtained by the numerical simulation were basically in agreement with the results of laboratory test. It indicates that the numerical simulation is suitable for the mechanical characteristic research of CGM. In addition,the distribution statistic of several fabric elements about interaction between particles was also presented. Some relation between the stress-strain and fabric element change are found after analysis.

Abstract: In nuclear power plant (NPP), particulate matter and gaseous pollutant release into the environment in severe accidents. To prevent from this disaster, filtered vented containment system (FVCS) containing venturi scrubber is being installed. The present work herein is the CFD simulation of throat pressure in venturi scrubber. A commercial software ANSYS CFX tool has been selected for this research. Euler-Euler regime is used to get the picture of behavior of fluid dynamics inside the venturi scrubber. Gas and liquid interact with each other in throat section of venturi scrubber. The pressure at the throat is one of the important factors to analyze the performance of venturi scrubber. In order to verify the results, mesh independency is checked. CFX and experimental results show good agreement with each other. The results obtained from CFX simulation are useful to improve the venturi design.

Abstract: The basic principle of Ring Oscillator Accelerometer is analyzed in this paper. On the basic of simulation and analysis of the structure of the Ring Oscillator Accelerometer, a four-silicon beam structure is put up . Then the mixer- principle of the dual-gate MOS mixer is analyzed in theory. Finally, We have simulated the ring oscillator circuit and the dual-gate MOS mixer circuit using the PSpice. The result of the simulation fits theory well.