Journal of Manufacturing Science and Engineering: Recent submissions

Now showing items 7661-7680 of 7723

    • Squeeze Film Dampers: Amplitude Effects at Low Squeeze Numbers 

      Martin H. Sadd; A. Kent Stiffler (The American Society of Mechanical Engineers (ASME), 1975)
      Gaseous squeeze film dampers are analyzed to determine the effect of periodic disturbance amplitude on the dynamic performance. Both circular and rectangular parallel surfaces are investigated. A ...

    • Design of a Squeeze-Film Damper for a Multi-Mass Flexible Rotor 

      Robert E. Cunningham; Edgar J. Gunter; David P. Fleming (The American Society of Mechanical Engineers (ASME), 1975)
      A single mass flexible rotor analysis was used to optimize the stiffness and damping of a flexible support for a symmetric five-mass rotor. The flexible support attenuates the rotor motions ...

    • Destructive Vibration of Trashracks due to Fluid-Structure Interaction 

      S. H. Crandall; S. Vigander; P. A. March (The American Society of Mechanical Engineers (ASME), 1975)
      Trashracks in pumped storage systems with high flow rates can develop fatigue failures due to excessive vibration excited by the flow past the rods in the rack. An experimental study of ...

    • Dynamic Behavior of an Inherently Compensated Air Squeeze Film Damper 

      R. E. Cunningham (The American Society of Mechanical Engineers (ASME), 1975)
      Experimental values of damping and stiffness were determined for an externally pressurized, inherently compensated, compressible squeeze-film damper up to excitation frequencies of 36,000 cycles/min. ...

    • The Vortex Induced Oscillation of Elastic Structural Elements 

      W. D. Iwan (The American Society of Mechanical Engineers (ASME), 1975)
      A technique is presented whereby certain mathematical models for the vortex shedding induced response of a rigid elastically supported cylindrical element can be applied to internally elastic ...

    • Effect of a Biphase Lubricant on Half Frequency Whirl in a Full Journal Bearing 

      G. C. Tolle; D. Muster (The American Society of Mechanical Engineers (ASME), 1975)
      It is shown that a liquid–solid biphase lubricant can stabilize the motion of a rigid rotor in a full-journal bearing. The biphase lubricant is a uniform dispersion of Teflon particles in an ...

    • Monotonicity and Dominance in Optimal Hydraulic Cylinder Design 

      D. Wilde (The American Society of Mechanical Engineers (ASME), 1975)
      Rigorous principles are derived for designing hydraulic cylinders optimizing a wide range of objective functions and stress constraints. Monotonicity and dominance are illustrated as general ...

    • Active Synchronization Control of the Gyroscopic Vibration Absorber 

      J. E. Sneckenberger; R. A. Clise (The American Society of Mechanical Engineers (ASME), 1975)
      Active synchronization control of the gyroscopic vibration absorber is experimentally investigated to provide efficient transition between steady-state synchronization conditions. One open loop and ...

    • Reduction of Harmonic Response of Cylindrical Shells 

      G. B. Warburton (The American Society of Mechanical Engineers (ASME), 1975)
      The normal mode method is used to investigate the reduction in the steady-state response of a simply supported cylindrical shell when conventional absorbers are attached to the shell. Two types ...

    • Minimum Exponential Cost Allocation of Sure-Fit Tolerances 

      D. Wilde; E. Prentice (The American Society of Mechanical Engineers (ASME), 1975)
      The least cost allocation of sure-fit machine tolerances for Speckhart’s exponential cost model is solved in closed form, without numerical iteration, as a geometric program with zero degrees ...

    • The Effect of Viscosity on the Dynamics of a Submerged Spherical Shell 

      Tsung-Chow Su; Y. K. Lou (The American Society of Mechanical Engineers (ASME), 1975)
      In order to clarify the effect of fluid viscosity on the vibrations of submerged elastic shells, the axisymmetric vibrations of a spherical shell immersed in a compressible, viscous fluid medium ...

    • Vibration of a Loosely Held Tube 

      R. D. Blevins (The American Society of Mechanical Engineers (ASME), 1975)
      The results of a series of over 700 measurements of the tube damping and natural frequency of heat exchanger tubes are presented. The damping and frequency measurements of the loosely held ...

    • The Bond Graph as a Unified Data Base for Engineering System Design 

      R. C. Rosenberg (The American Society of Mechanical Engineers (ASME), 1975)
      In developing a unified data base for support of engineering systems design there are several important factors to consider, such as efficiency of model description, ease of modifying models, ...

    • Substitute for the Impact Damper 

      D. L. Cronin; N. K. Van (The American Society of Mechanical Engineers (ASME), 1975)
      A barrier to the widespread use of the impact damper is its noisy operation. Described in this paper is work related to the development of a substitute for the impact damper combining effective ...

    • Stability and Damped Critical Speeds of Rotor-Bearing Systems 

      P. N. Bansal; R. G. Kirk (The American Society of Mechanical Engineers (ASME), 1975)
      This paper describes an analytical technique to calculate the damped critical speeds and the instability threshold speed of multimass rotor-bearing systems. Necessary equations are developed to ...

    • Experimental Measurement of the Dynamic Force Response of a Squeeze-Film Bearing Damper 

      John M. Vance; Alan J. Kirton (The American Society of Mechanical Engineers (ASME), 1975)
      An experimental study of the hydrodynamic force response of a squeeze-film bearing damper with end seals was carried out. Measurements of the pressure distribution about a journal constrained ...

    • An Improved Direct Search Mathematical Programming Algorithm 

      M. Pappas; J. Y. Moradi (The American Society of Mechanical Engineers (ASME), 1975)
      An improved, nonlinear, constrained algorithm is presented, coupling a rotating coordinate pattern search with a feasible direction finding procedure used at points of pattern search termination. ...

    • Parametric Influences on the Response of Structural Shells 

      N. J. Huffington; J. D. Wortman (The American Society of Mechanical Engineers (ASME), 1975)
      The effects on structural response produced by variation of geometric, loading, and material property parameters have been investigated for the specific case of a fixed-ended cylinder subjected ...

    • A Weighted Flexible Tolerance Algorithm for Constrained Minimization 

      M. A. Townsend; F. Y. Lam (The American Society of Mechanical Engineers (ASME), 1975)
      A direct search algorithm based upon the flexible tolerance method developed by Paviani and Himmelblau [1] for minimization of a functional subject to nonlinear equality and inequality constraints ...

    • The Application of Impact Dampers to Continuous Systems 

      Ranjit K. Roy; Richard D. Rocke; J. Earl Foster (The American Society of Mechanical Engineers (ASME), 1975)
      A study has been made of the application of impact dampers to two types of continuous systems, a simply supported and a clamped beam. Experimental models were tested in the laboratory and ...