In this paper, the dynamical behavior of single magnet suspension system of maglev train considering the elastic guide-way is researched through HOPF bifurcation theory. With three states feedback variables (gap, current, velocity), the HOPF bifurcation conditions and corresponding vibration frequency of the coupled system is presented under different flexible guideway conditions, that is, the ...

This study addresses guideway network design for personal rapid transit (PRT) favoring transit-oriented development. The guideway network design problem seeks to minimize both the guideway construction cost and users’ travel time. In particular, a set of optional points, known as Steiner points, are introduced in the graph to reduce the guideway length. The model is formulated as a combined Ste...

High speed maglev is one of the most important reformations in the ground transportation systems because of its no physical contact nature. This paper intends to study the dynamic response of the single-span guideway induced by moving maglev train. The dynamic model of the maglev train-guideway system is established. In this model, a maglev train consists of three vehicles and each vehicle is r...

An electromagnetic levitation controller design considering guideway deflection is presented. Even though to design a maglev controller to make a vehicle steady suspension under guideway deflection is a key technology in maglev vehicle system, the vehicle-guideway interaction effects haven’t well explored and yet settled. Unlike most approaches based on the linear model, a maglev controller is ...

In this study, a simple 2-D measurement system based on optical design was developed to measure the motion errors of the linear guideway. Compared with the transitional methods about the linear guideway for measuring the motion errors, our proposed 2-D optical measurement system can simultaneously measure horizontal and vertical running straightness errors for the linear guideway. The performan...

To restrain the effects of vehicle-guideway dynamic interaction, a bandstop filter is introduced into the maglev levitation controller. To compensate these phase-lags in some particular band produced by the bandstop filter, an allpass filter is designed, which can not only attenuate the amplitude at the resonance frequency, but also decrease the phase-lag in relative-wide band. The simulation r...

MagneMotion and Old Dominion University undertook a cooperative agreement to demonstrate the MagneMotion M3 urban maglev technology on an existing elevated guideway on the ODU campus in Norfolk VA. M3 was designed for urban applications with speeds up to 100 mph, acceleration up to 1.6 m/s2, and a 60 foot turn radius. Figure 1 shows the “sled” vehicle on the ODU guideway. This vehicle was weigh...

This paper proposes a novel method for identifying carriage errors. A general mathematical model of a guideway system is developed, based on the multi-body system method. Based on the proposed model, most error sources in the guideway system can be measured. The flatness of a workpiece measured by the PGI1240 profilometer is represented by a wavelet. Cross-correlation analysis performed to iden...

The World Gateway Terminal at Miami International Airport (MIA) is under construction. This 1.3 billion dollar Terminal is designed to prepare for the continued growth in travel demands at MIA and will be used by American Airlines as its Latin American Hub. The construction of the new Terminal will include significant demolition of existing concourses, modernization of existing space, and addin...

This paper systematically summarized the technical state of art and research results on motion error a linear guideway, corrected some misconceptions, further clarified relationship between straightness guide rail itself stage. Moreover, new method based parallel mechanism is provided to study errors pair. The basic idea abstract structural stage into 4-bar mechanism. Thus, can be considered as...