Journal of Vibration and Acoustics: Recent submissions

Now showing items 2921-2940 of 3913

    • A Modified Transfer Matrix Method for Asymmetric Rotor-Bearing Systems 

      Yuan Kang; An-Chen Lee; Yuan-Pin Shih (The American Society of Mechanical Engineers (ASME), 1994)
      A modified transfer matrix method (MTMM) is developed to analyze rotor-bearing systems with an asymmetric shaft and asymmetric disks. The rotating shaft is modeled by a Rayleigh-Euler beam ...

    • Dynamic Characteristics of Layered Beam with Flexible Core 

      Y.-H. Chen; J.-T. Sheu (The American Society of Mechanical Engineers (ASME), 1994)
      This paper presents an analytical theory to define the dynamic characteristics of a layered beam which is composed of two parallel beams of uniform properties with a flexible core in-between. ...

    • Subharmonic and Quasi-Periodic Motions of an Eccentric Squeeze Film Damper-Mounted Rigid Rotor 

      J. Y. Zhao; I. W. Linnett; L. J. McLean (The American Society of Mechanical Engineers (ASME), 1994)
      When a squeeze-film damper is operated eccentrically, the nonlinear damper forces are no longer radially symmetric and subharmonic and quasi-periodic vibrations may be excited by the rotor ...

    • Dynamic Characteristics of a Constrained String Translating Across an Elastic Foundation 

      C. A. Tan; L. Zhang (The American Society of Mechanical Engineers (ASME), 1994)
      The free and forced linear response of a constrained string translating across an elastic foundation is examined in this paper. The transfer function method is used in the analysis. For the ...

    • Vibration Measurements on Rotating Machinery Using Laser Doppler Velocimetry 

      S. J. Rothberg; N. A. Halliwell (The American Society of Mechanical Engineers (ASME), 1994)
      This paper explores the use of laser vibrometry for vibration measurement directly from a rotating component. The presence of a surface velocity component due to the rotation itself is shown ...

    • Frequency Spectra of Laminated Piezoelectric Cylinders 

      J. C.-T. Siao; S. B. Dong; J. Song (The American Society of Mechanical Engineers (ASME), 1994)
      A finite-element method is presented for determining the vibrational characteristics of a circular cylinder composed of bonded piezoelectric layers. Finite-element modeling occurs in the radial ...

    • An Energy-Based Formulation for Computing Nonlinear Normal Modes in Undamped Continuous Systems 

      M. E. King; A. F. Vakakis (The American Society of Mechanical Engineers (ASME), 1994)
      The nonlinear normal modes of a class of one-dimensional, conservative, continuous systems are examined. These are free, periodic motions during which all particles of the system reach their ...

    • Mode Localization in Coupled Circular Plates 

      C. O. Orgun; B. H. Tongue (The American Society of Mechanical Engineers (ASME), 1994)
      When analyzing structures that are comprised of many similar pieces (periodic structures), it is common practice to assume perfect periodicity. Such an assumption will lead to the existence of ...

    • A Consistent Higher-Order Theory of Laminated Plates with Nonlinear Impact Modal Analysis 

      C. C. Chao; T. P. Tung; C. C. Sheu; J. H. Tseng (The American Society of Mechanical Engineers (ASME), 1994)
      A consistent higher-order theory is developed for cross-ply laminated thick plates under transverse normal impact via an energy variational approach, in which the 3-D surface/edge boundary conditions ...

    • Parametric Control of Flexible Systems 

      C. D. Rahn; C. D. Mote (The American Society of Mechanical Engineers (ASME), 1994)
      One position sensor, a bilinear observer, and quadratic, observer-based feedback to a parametric actuator asymptotically stabilize n-modes of a flexible system. Using a perturbation approach, the ...

    • Hybrid Damping Through Intelligent Constrained Layer Treatments 

      I. Y. Shen (The American Society of Mechanical Engineers (ASME), 1994)
      This paper is to propose a viable hybrid damping design that integrates active and passive dampings through intelligent constrained layer (ICL) treatments. This design consists of a viscoelastic ...

    • A Piezothermoelastic Thin Shell Theory Applied to Active Structures 

      H. S. Tzou; R. V. Howard (The American Society of Mechanical Engineers (ASME), 1994)
      “Smart” structures with integrated sensors, actuators, and control electronics are of importance to the next-generation high-performance structural systems. Piezoelectric materials possess unique ...

    • Mechanisms of Noise Transmission through Helicopter Gearbox Support Struts 

      M. J. Brennan; R. J. Pinnington; S. J. Elliott (The American Society of Mechanical Engineers (ASME), 1994)
      Helicopter gearbox support struts are structural members designed to take large compressive and tensile mechanical loads. They also act as vibration transmission paths connecting the major noise ...

    • Development of Phased Twin Flip-Flop Jets 

      G. Raman; E. J. Rice (The American Society of Mechanical Engineers (ASME), 1994)
      The flip-flop nozzle is a device that can produce an oscillating jet flow without any moving parts. There is now a renewed interest in such nozzles due to their potential for use as excitation ...

    • On Localization in Coupled, Spinning, Circular Plates 

      C. O. Orgun; B. H. Tongue (The American Society of Mechanical Engineers (ASME), 1994)
      The vibrational response of multiple rotating circular plates, stacked together on a central spindle and coupled through stationary springs, is investigated. An analytical model is derived and a ...

    • Dynamic Properties of the Rigid Body and Supports from Vibration Measurements 

      S. M. Pandit; Y.-X. Yao; Z.-Q. Hu (The American Society of Mechanical Engineers (ASME), 1994)
      A novel method is presented to determine the dynamic characteristics of a multi-DOF rigid body structure from vibration measurements and coordinates of the transducers. These characteristics include ...

    • Application of System Identification to the Absolute Calibration of Acoustic Emission Signals 

      Pei-Ling Liu; Tseng-Hwa Song; Tsung-Tsong Wu (The American Society of Mechanical Engineers (ASME), 1994)
      This paper studies the absolute calibration of acoustic emission signals. The experiments were conducted on a thin plate. Fracture of a glass capillary was adopted to generate a vertical force ...

    • A Numerical Solution for the Transient Displacement of a Circumferentially Moving Cylindrical Shell 

      S. Müftü; R. C. Benson (The American Society of Mechanical Engineers (ASME), 1994)
      In magnetic tape recording it is important to control the tape displacement as it is transported over guides and recording heads. In this paper a numerical solution is presented for the ...

    • Isolation of the Spectrograms and Rosettes of Insonified Sets of Submerged, Concentric, Thin Shells 

      G. C. Gaunaurd; A. Akay (The American Society of Mechanical Engineers (ASME), 1994)
      The resonance features present, and observable, in the form-functions of submerged, fluid-filled, elastic, thin shells, usually appear combined with smooth, undesirable, background components that ...

    • Flexural Instabilities in Axially Moving Bands 

      S. F. Asokanthan; S. T. Ariaratnam (The American Society of Mechanical Engineers (ASME), 1994)
      Flexural instabilities in moving bands under harmonic tension fluctuation are investigated. The discretized equations of flexural motion represent a periodically perturbed linear gyroscopic system. ...