Journal of Manufacturing Science and Engineering: Recent submissions

Now showing items 5181-5200 of 7723

    • Calculations and Experiments on the Unbalance Response of a Flexible Rotor 

      J. W. Lund; F. K. Orcutt (The American Society of Mechanical Engineers (ASME), 1967)
      The results of a combined analytical and experimental investigation of the unbalance vibrations of a rotor are presented. The analysis applies to a general rotor-bearing system in which the ...

    • A Quantitative Evaluation of Constrained-Layer Damping 

      T. P. Yin; T. J. Kelly; J. E. Barry (The American Society of Mechanical Engineers (ASME), 1967)
      The constrained-layer damping mechanisms on plates, beams, and tubular structures have been experimentally studied with well characterized viscoelastic materials. The Kerwin analysis [1] on plate ...

    • Vibration Analysis of Shells Using Discrete Mass Techniques 

      R. J. McGrattan; E. L. North (The American Society of Mechanical Engineers (ASME), 1967)
      A method for analyzing thin shells by a discrete mass technique is presented. The shells and stiffeners are idealized as a system of lumped masses and an elastic framework having the equivalent ...

    • Vibratory Penetration of Soils 

      M. Senator (The American Society of Mechanical Engineers (ASME), 1967)
      An approximate expression is found for the penetration rate of a flexible penetrator, modeled as two masses joined by an elastic member with damping, with applied bias and harmonic forces. ...

    • Spatial Response Concentrations in Extended Structures 

      R. H. Lyon (The American Society of Mechanical Engineers (ASME), 1967)
      When an extended structure is excited at frequencies above the resonance of its lowest modes, spatial variations in the mean square response occur since the mode shapes are functions of the ...

    • The Electrodynamic Vibration Absorber as a Passive or Active Device 

      A. K. Abu-Akeel (The American Society of Mechanical Engineers (ASME), 1967)
      The theory of a new damper is derived and verified experimentally. The damper utilizes an electric armature elastically coupled to its field stator which is fixed to the vibrating system. The ...

    • Resonance Characteristics of Unidirectional Viscous and Coulomb-Damped Vibration Isolation Systems 

      Jerome E. Ruzicka (The American Society of Mechanical Engineers (ASME), 1967)
      Elementary vibration theory based on transfer response analyses of single-degree-of-freedom systems indicates that an increase in isolation system damping causes a decrease in resonant transmissibility. ...

    • The Design and Evaluation of a Supercritical-Speed Helicopter Power-Transmission Shaft 

      R. H. Prause; H. C. Meacham; J. E. Voorhees (The American Society of Mechanical Engineers (ASME), 1967)
      A series of research programs with small-diameter, supercritical-speed power-transmission shafting has led to the development of design techniques for the application of one or two viscous dampers ...

    • On Precession and Critical Speeds of Two-Bearing Machines With Overhung Weight 

      T. C. Huang; Frank C. C. Huang (The American Society of Mechanical Engineers (ASME), 1967)
      A study has been made to analytically determine the angular precession and critical speeds of two-bearing machines with overhung weight. The gyroscopic moment (when rotating), rotatory inertia ...

    • The Gyroscopic Vibration Absorber 

      Robert Jones (The American Society of Mechanical Engineers (ASME), 1967)
      The linearized equations of motion of the gyroscopic vibration absorber are derived showing that the antiresonant frequency is a linear function of the speed of the gyroscopic disk; thus the ...

    • Instability of Oil Bearings Due to High Oil Viscosity 

      Y. N. Chen (The American Society of Mechanical Engineers (ASME), 1967)
      On a large turboblower running in oil bearings, it was found that the rotor became seriously unstable when the bearing oil temperature was low. It will be shown that this unstable vibration ...

    • Nonsynchronous Response of a Pivoted-Pad Gas Bearing 

      W. J. Love (The American Society of Mechanical Engineers (ASME), 1967)

    • The Influence of Internal Friction on the Stability of High Speed Rotors 

      E. J. Gunter (The American Society of Mechanical Engineers (ASME), 1967)

    • Torsional Instability of Fully Stalled Airfoil (or Supercavitating Hydrofoil) 

      M. S. Natesh (The American Society of Mechanical Engineers (ASME), 1967)
      A theoretical study is carried out to determine the conditions under which steady-state pitching oscillations of an airfoil in one degree of freedom are possible in two-dimensional subsonic ...

    • Damping in Sandwich Beams With Shear-Flexible Cores 

      C. W. Bert; W. C. Crisman; D. J. Wilkins (The American Society of Mechanical Engineers (ASME), 1967)
      This paper is a theoretical and experimental study of the effect of core shear flexibility on the lowest natural frequency, node locations, and damping in sandwich beams with cores of high ...

    • An Investigation of an Impact Vibration Absorber 

      D. M. Egle (The American Society of Mechanical Engineers (ASME), 1967)
      The impact vibration absorber consists of a small mass, moving unidirectionally, impacting against the ends of a container which is rigidly attached to the primary vibrating system. A simplified ...

    • On the Critical Speeds of a Continuous Shaft-Disk System 

      R. L. Eshleman; R. A. Eubanks (The American Society of Mechanical Engineers (ASME), 1967)
      The effect of gyroscopic moments on the critical speeds of a shaft-disk system mounted in short end bearings is investigated. Representation of the shaft as having continuously distributed mass ...

    • Use of Mass as a Perturbation Parameter in Vibrations 

      R. Chicurel; J. Counts (The American Society of Mechanical Engineers (ASME), 1967)
      Linear vibration problems involving harmonic excitation of discrete and continuous systems are solved by using the classical perturbation technique. The perturbation parameter is proportional to a ...

    • Composite Damping of Vibrating Sandwich Beams 

      R. A. DiTaranto; W. Blasingame (The American Society of Mechanical Engineers (ASME), 1967)

    • Statistical Energy Analysis of Vibrating Systems 

      Eric E. Ungar (The American Society of Mechanical Engineers (ASME), 1967)
      The “statistical energy analysis” approach provides a relatively simple means for understanding and estimating the significant properties of multimodal random vibrations of complex systems, since ...