Pixuan Zhou

The University of Arizona, Tucson, Arizona, United States

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Publications (4)1.73 Total impact

  • Pixuan Zhou · Fei-Yue Wang · Weinong Chen · Paul Lever
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    ABSTRACT: A mechatronic approach is studied here to design the mechanical system and controller concurrently for a robotic flexible manipulator. There is no coupling effects among these components which exit in traditional sequential design and this concurrent development leads to the global optimal performance. A linear quadratic regulator with output feedback is used to compare the results obtained from the traditional approach and this mechatronic approach. Using the mechatronic approach, optimal beam shapes as well as the associated optimal controllers for different feedback structures and for different objective functions can be achieved. Numerical results have indicated substantial improvements on performance.
    No preview · Article · Feb 2001 · Mechatronics
  • Pixuan Zhou · Fei-Yue Wang · Paul J. A. Lever

    No preview · Conference Paper · Jan 1999
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    ABSTRACT: A flexible, model-based tool is presented for use in the analysis of telecommunication networks. The tool was designed and implemented using object-oriented principles. Through the use of software models, which can be modified or added, NOVA allows the analysis of data networks with arbitrary characteristics and topologies. We discuss specific models for a network node and a link, which are the main components of a network topology. A sensitivity analysis of various model parameters was performed using a sample topology. In addition, NOVA was used to analyze the performance of the telecommunication network of southern China. We evaluated the network for various air traffic loads using fixed background data traffic. We investigated the average number of packets, average waiting time for a packet, average total time spent for a packet, and the utilization at a given city node in the network. By exploiting NOVA's modularity and flexibility, we were able to gain insight into various trade-offs involved in a telecommunication network design
    No preview · Conference Paper · Mar 1998
  • Fei-Yue Wang · Pixuan Zhou · P. Lever
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    ABSTRACT: This paper presents a comprehensive study on the influence of rotatory inertia, shear deformation, and tip load on the dynamic behaviors of one-link flexible manipulators. Two types of dynamic models, Euler-Bernoulli model with rotatory inertia and Timoshenko model, have been established and used in the analysis of modal frequencies and vibration modes. Explicit expressions of both step responses and transfer functions of flexible manipulators are obtained
    No preview · Conference Paper · Nov 1996