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This paper presents a new analysis approach for optimal design of proportional compliant mechanisms with corner-filleted flexure hinges. It is the first time to use pseudo rigid body model (PRBM) for cantilever beams to analyze the connecting flexure hinges. The rotation center and rotational angle of each flexure hinge are corrected by means of characteristics radius factor (γ ) and parametric angle...
Laser interference lithography (LIL) is an established fabrication technology for micro and nano scale structuring of periodic and quasi-periodic surface patterns. This paper presents a Five-beam Interference Pattern Model for laser interference lithography. It can be programmed to obtain images of interference results showing interference intensity distributions. The majority of 2-5 beam interference...
This paper investigates a case study of grid integration of large offshore wind farm and oil & gas installations using Line-Commutated-Converter (LCC) HVDC transmission system. Additionally, a STATCOM provides commutation voltage and reactive power to the system. The Wind farm supplies power to oil & gas installations through the offshore AC network, and to the onshore grid through the LCC-HVDC...
In this paper, a kind of shape memory alloy (SMA) model based on multivariate statistical analysis was developed and applied in vibration control on rotor system with SMA bearing. Hysteretic nonlinear theory was introduced to interpret the difference between loading and unloading curve of SMA. Stepwise multiple regression method was applied in finding the relationship among strain, stress and temperature...
The nonlinear dynamic characteristics of traffic flow based on continuous car-following model were studied in this paper. Discrete Bierley car-following model was transformed into continuous nonlinear dynamic model with nonintegral dimension in difference method and solved in averaging method. Stability and bifurcation characteristics were analyzed, and time histories and phase diagrams of this system...
In this paper, a kind of shape memory alloy (SMA) model based on hysteretic nonlinear theory and data mining was developed and applied in vibration control on rotor system with SMA bearing. Nonlinear difference item was introduced to interpret the hysteretic phenomenon of SMA. Arctangent function was introduced to describe the variation of SMA stiffness with temperature. Based on above, all of possible...
In this paper, the nonlinear dynamic characteristics of vehicle semi-active suspension system with SMA spring was studied. SMA spring was applied in semi-active suspension system to substitute ER and MR fluid to provide controllable force. Hysteretic cycle and multinomial model were introduced to set up a new kind of continuous SMA strain-stress-temperature model, based on which the nonlinear dynamic...
The nonlinear dynamic characteristics of traffic flow based on continuous car-following model were studied in this paper. Discrete Bierley nonlinear car-following model was changed into continuous model in difference method and solved in averaging method. Stability and bifurcation characteristics were analyzed, and time histories and phase diagrams of this system were obtained in simulation. The results...
A stochastic model of business cycle was presented in this paper. The Ito diffusion process was obtained after the model was simplified in quasi Hamiltonian theory. The backward Kolmogorov equation for reliability function and the generalized Pontryagin equation for conditional moment of the first-passage time were established, and the numerical results were given in virtue of figures according to...
Radio Frequency Identification (RFID) has gained a lot of attention as a promising technology that facilitates pervasive computing and the gradual proliferation of RFID-based applications will produce a large amount of urgent and complicated event streams. The RFID middleware system is expected to offer the further complex event processing service to satisfy the high-level query semantics and performance...
This paper proposes a method to combine the digital images and Laser point clouds to reconstruct the 3D model of the archaic glockenspiel. All the stations of the Laser point clouds are connected according to the ICP arithmetic. Then image matching is used to register the high resolution digital images and the Laser synchronous images to gain the corresponding texture of the Laser point clouds. Finally,...
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