Journal of Vibration and Acoustics: Recent submissions

Now showing items 3401-3420 of 3913

    • 2nd International Congress on Acoustic Intensity (ICAI) 

      Centre Technique des Industries Mechaniques; H. Saunders (The American Society of Mechanical Engineers (ASME), 1988)

    • On the Accuracy of Parametric and Classical Spectra 

      S. Braun; A. Sneor (The American Society of Mechanical Engineers (ASME), 1988)
      This work investigates the accuracy of spectral estimates computed via parametric techniques. Comparisons with results obtained via classical Fourier methods are also presented. The PSD’s (power ...

    • The Noise-Producing Characteristics of Highly Loaded, Valveless, Pulse Combustors 

      J. A. C. Kentfield (The American Society of Mechanical Engineers (ASME), 1988)
      An inherent problem of pulsating combustors is noise generation and the difficulty of predicting noise levels. Analytical data are presented which illustrate the transient velocity profiles ...

    • Structural Excitation by a Turbulent Boundary Layer: An Overview 

      P. Leehey (The American Society of Mechanical Engineers (ASME), 1988)
      Thirty years of theoretical and experimental research have yet to resolve a number of questions regarding the vibratory response of, and acoustic radiation from, a structure excited by a turbulent ...

    • Fuselage Structural-Acoustic Modeling for Structure-Borne Interior Noise Transmission 

      J. F. Unruh; S. A. Dobosz (The American Society of Mechanical Engineers (ASME), 1988)
      Detailed finite element models of a fuselage structure and acoustic cabin volume of a laboratory based prototypical aircraft fuselage were generated for the purpose of studying the predictive ...

    • Controlled Excitation of a Cold Turbulent Swirling Free Jet 

      R. Taghavi; E. J. Rice; S. Farokhi (The American Society of Mechanical Engineers (ASME), 1988)
      Experimental results from acoustic excitation of a cold free turbulent jet with and without swirl are presented. A flow with a swirl number of 0.35 (i.e., moderate swirl) is excited internally ...

    • Active Vibration Control of a Distributed System With Moving Support 

      J. K. Bennighof; L. Meirovitch (The American Society of Mechanical Engineers (ASME), 1988)
      This paper is concerned with the problem of controlling the vibration of a distributed system with a support undergoing significant persistent motion. Because of practical considerations, the ...

    • Evaluation of Aerodynamic Instability Mechanisms for Centrifugal Compressors—Part I: Current Theory 

      R. G. Kirk (The American Society of Mechanical Engineers (ASME), 1988)
      Current theories of calculating levels of aerodynamic excitation are reviewed and methods of applying these results to actual compressor designs are discussed in detail. Comparison of compressor ...

    • Evaluation of Aerodynamic Instability Mechanisms for Centrifugal Compressors—Part II: Advanced Analysis 

      R. G. Kirk (The American Society of Mechanical Engineers (ASME), 1988)
      The results of advanced analysis for labyrinth seal dynamic characteristics are compared to current methods of calculating aerodynamic excitation and to test rig data published in the literature ...

    • Probabilistic Methods in the Mechanics of Solids and Structures 

      S. Eggwertz; H. Saunders; N. C. Lind (The American Society of Mechanical Engineers (ASME), 1988)

    • Rotor Active “Anti-Swirl” Control 

      A. Muszynska; W. D. Franklin; D. E. Bently (The American Society of Mechanical Engineers (ASME), 1988)
      Rotor self-excited vibrations due to solid/fluid interaction, such as occurring in seals, can easily be reduced or eliminated by controlling fluid circumferential velocity. This is known as ...

    • Crack Depth Analysis of a Rotating Shaft by Vibration Measurement 

      B. O. Dirr; B. K. Schmalhorst (The American Society of Mechanical Engineers (ASME), 1988)
      The increasing development of measurement techniques for monitoring rotor plants requires improved possibilities for the interpretation of vibration response. Therefore, computer programs that have ...

    • Evaluation of Pivot Stiffness for Typical Tilting-Pad Journal Bearing Designs 

      R. G. Kirk; S. W. Reedy (The American Society of Mechanical Engineers (ASME), 1988)
      The manufacturers of high speed turbomachinery are concerned with the accurate prediction of rotor response and stability. One major factor in the placement of system critical speeds and ...

    • Rotor Stability of High Pressure Multistage Centrifugal Compressors 

      H. R. Wyssmann (The American Society of Mechanical Engineers (ASME), 1988)
      A major factor influencing rotor stability of multistage high pressure centrifugal turbocompressors are the forces caused by the fluid-rotor interaction in the interstage and balance piston gas ...

    • Diagnosing Vibration Problems in Vertically Mounted Pumps 

      T. J. Walter; H. G. Shugars; M. M. Marchione (The American Society of Mechanical Engineers (ASME), 1988)
      This paper summarizes several recent efforts to develop and implement techniques to monitor and diagnose problems in submerged shaft vertical pumps. Projects based on iterative analytical and ...

    • The Dynamics of an Impact Print Hammer 

      P. C. Tung; S. W. Shaw (The American Society of Mechanical Engineers (ASME), 1988)
      A mathematical model is developed to describe the characteristic behavior of an impact print hammer of the stored energy type. The armature of the impact print hammer is represented by a rigid ...

    • Balancing With Phase Only (Single-Plane and Multiplane) 

      W. C. Foiles; D. E. Bently (The American Society of Mechanical Engineers (ASME), 1988)
      A balancing technique is developed which requires nothing more sophisticated in vibration instrumentation than a pencil or a crayon. This method of balancing is a calibration weight technique ...

    • Aerodynamic Indicial Response and Stability Derivatives of a Rotor Annulus 

      V. G. Mengle (The American Society of Mechanical Engineers (ASME), 1988)
      The key to finding the aerodynamic forces acting on a rotor in arbitrary rigid-body motion is its response to indicial input of its individual degrees of freedom. A theory is developed to ...

    • An Approximate Method for Predicting Peak Transient Responses 

      J. M. Starkey; G. M. Bubel (The American Society of Mechanical Engineers (ASME), 1988)
      A method is presented to predict the peak deflections and peak transmitted forces of a viscously-damped multi-degree-of-freedom linear vibratory system that experiences time-varying excitations which ...

    • Experiments and Calculations on the Vibrations of Rotating Radial Impellers 

      Horst Irretier (The American Society of Mechanical Engineers (ASME), 1988)
      Experimental and numerical results on the vibrations of a rotating radial impeller are presented. They show natural frequencies as a function of rotational speed, the mode shapes, the resonance ...