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Control of maglev vehicles with aerodynamic and guideway disturbances
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Flueckiger, Karl McCallum, Duncan Caswell, Ruth Mark, Steve |
| Copyright Year | 1994 |
| Description | A modeling, analysis, and control design methodology is presented for maglev vehicle ride quality performance improvement as measured by the Pepler Index. Ride quality enhancement is considered through active control of secondary suspension elements and active aerodynamic surfaces mounted on the train. To analyze and quantify the benefits of active control, the authors have developed a five degree-of-freedom lumped parameter model suitable for describing a large class of maglev vehicles, including both channel and box-beam guideway configurations. Elements of this modeling capability have been recently employed in studies sponsored by the U.S. Department of Transportation (DOT). A perturbation analysis about an operating point, defined by vehicle and average crosswind velocities, yields a suitable linearized state space model for multivariable control system analysis and synthesis. Neglecting passenger compartment noise, the ride quality as quantified by the Pepler Index is readily computed from the system states. A statistical analysis is performed by modeling the crosswind disturbances and guideway variations as filtered white noise, whereby the Pepler Index is established in closed form through the solution to a matrix Lyapunov equation. Data is presented which indicates the anticipated ride quality achieved through various closed-loop control arrangements. |
| File Size | 989817 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940031335 |
| Archival Resource Key | ark:/13960/t3dz55p98 |
| Language | English |
| Publisher Date | 1994-05-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Liapunov Functions Statistical Analysis Multivariable Control Aerodynamics Systems Analysis Feedback Control Magnetic Levitation Vehicles Riding Quality Suspension Systems Vehicles Comfort Control Surfaces Lumped Parameter Systems Rail Transportation Active Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
