The vehicle-guideway-coupled vibration is a complex problem in the research of the maglev vehicle. The engineering tests show that the change of the relative position between the vehicle and the guideway and some other factors may cause the vehicle-guideway-coupled vibration. At the present time, single-long-span guideway and multi-short-span guideway are mainly used in the EMS
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Speech production and acquisition is a new important crossing point in dynamics,acoustics, mathematics and many other disciplines , it is also an important branch in the researchfield of the robot, it can help us to better understand speech, and has a very broad applicationprospects in reality. DIVA(Directions Into Velocities of Articulators) is a mathematical model
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In the real world, many phenomena contain the nature of nonlinear such as limit cycle, chaos and etc. These phenomena are often called linear systems after approximate linearization under certain conditions. Nonlinear factors are often overlooked in the use of existing linear system design tools for approximate linearization system. Moreover, the system input and output
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Research on chaos is one of the important achievements in nonlinear science. Chaotic motion is a complex motion, whose equation is certain but the trajectory of the orbits is stochastic. There are lots of chaotic phenomena in real world. For oddities of chaos, uncontrolled chaos will not be applied, so chaos control is the first
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With the rapid development of semiconductor and chip technique latest years, more and more portable devices, such as MP3、PDA、mobile phone and laptop and so on, play a very important role in people’s daily lives. However, the large extent increase of chip density and clock frequency leads to the power consumption of SLSI system bigger and
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Optical switch is a device which can switch or make on/off light route. It is a key component of Optical Add-Drop Multiplexers (OADM) and Optical Cross Connectors (OXC), so it has been widely used in optical fiber communication networks. In this dissertation, our research is on optical switch based on transparent ferroelectric ceramics with electro-optic
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The liquid experiment in space needs intelligence to deal with the surveillance image right away to obtain the characteristics of object. A method is investigated to analyze the physical feature of a drop, such as surface tension, contact angle volume and evaporation velocity through fitting contour of the drop picture.The system is constituted of 3
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Under the knowledge of interferometric phase demodulation for fiber Bragg grating sensing system, a new continuous distributed strain demodulation system with Michelson interferometer was proposed. It is propitious to measure the dynamic strain and manipulate the sensitivity of the sensing system. The system is controlled based on LabVIEW programming. The sensing signals were captured and
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The asymptotical stability and stabilization problem is one of the fundamental problems in the theory of singular systems.Its results have been attracting more and more attentions,and are becoming more perfect along the development of the control theory.Because more systems can only be described by nonlinear systems in practical systems rather than linear systems,it has great
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The asymptotical stability and stabilization problem is one of the fundamental problems in the theory of singular systems.Its results have been attracting more and more attentions,and are becoming more perfect along the development of the control theory.Because more systems can only be described by nonlinear systems in practical systems rather than linear systems,it has great
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