Journal of Manufacturing Science and Engineering: Recent submissions

Now showing items 2141-2160 of 7723

    • Notch-Ductility Transition of Structural Steels of Various Yield Strengths 

      A. K. Shoemaker (The American Society of Mechanical Engineers (ASME), 1972)
      The notch-ductility transition of six structural steels, A36, ABS-Class C, A302-Grade B, HY-80, A517-Grade F, and HY-130, ranging in yield strength from 36 to 137 ksi, was studied with the use ...

    • Hydrodynamic Lubrication in Rolling of Thin Strips 

      B. Avitzur; G. Grossman (The American Society of Mechanical Engineers (ASME), 1972)
      The process of thin strip rolling is analyzed considering the hydrodynamic lubrication effect. Hydrodynamic lubrication prevails when a film of lubricant fully separates the rolls from the strip. ...

    • Shear Front-Lamella Structure in Large Strain Plastic Deformation Processes 

      J. T. Black (The American Society of Mechanical Engineers (ASME), 1972)
      The examination of the surface morphology of copper, aluminum, and steel chips produced by standard shop machining processes through the use of scanning electron microscopy has led to a more ...

    • Fatigue of Cylinders Subjected to Pulsating Internal Pressure 

      G. H. Haslam (The American Society of Mechanical Engineers (ASME), 1972)
      A method of estimating the fatigue strength and finite fatigue lives of components subjected to pulsating internal pressure is presented. An empirical expression describing the effect of the ...

    • A Note on the Calculation of Torsional Natural Frequencies of Branch Systems 

      A. C. Gilbert (The American Society of Mechanical Engineers (ASME), 1972)
      An adoption of matrix techniques is proposed as a method for the solution of torsional natural frequencies in a branch or geared shaft system. Both fundamental and higher mode shapes and ...

    • Stability of an Unsymmetrical Rotating Cantilever Shaft Carrying an Unsymmetrical Rotor 

      R. C. Arnold; E. E. Haft (The American Society of Mechanical Engineers (ASME), 1972)
      Previously, investigations pertaining to the stability of a rotating unsymmetrical shaft carrying an unsymmetrical rotor have considered the mass of the shaft to be negligible when compared with ...

    • Fracture Mechanics and Nondestructive Testing of Brittle Materials 

      W. G. Clark (The American Society of Mechanical Engineers (ASME), 1972)
      The fracture mechanics approach to the development of meaningful nondestructive inspection requirements is presented. The basic concepts underlying the technology are reviewed and the practical ...

    • The Coupled Bending—Bending Vibration of Pre-Twisted Tapered Blading 

      W. Carnegie; J. Thomas (The American Society of Mechanical Engineers (ASME), 1972)
      The work of this paper deals with the coupled bending–bending vibration of pre-twisted tapered cantilever blades. The equations of motion are established for a beam tapered in width (or depth) ...

    • The Effects of Shear Deformation and Rotary Inertia on the Lateral Frequencies of Cantilever Beams in Bending 

      W. Carnegie; J. Thomas (The American Society of Mechanical Engineers (ASME), 1972)
      This paper deals with the effect of shear deformation and rotary inertia on the frequencies of flexural vibration of pre-twisted and non-pre-twisted uniform and tapered cantilever beams. The ...

    • Polydyne Cam Mechanisms for Typehead Positioning 

      K. Kanzaki; K. Itao (The American Society of Mechanical Engineers (ASME), 1972)
      This paper describes a cam design method for typehead positioning in high-speed teleprinters. By this method, residual vibrations are extinguished at plural adjacent rise times and reduced over ...

    • The Effect of Support Flexibility and Damping on the Synchronous Response of a Single-Mass Flexible Rotor 

      R. G. Kirk; E. J. Gunter (The American Society of Mechanical Engineers (ASME), 1972)
      This paper deals with the dynamic unbalance response and transient motion of the single-mass Jeffcott rotor in elastic bearings mounted on damped, flexible supports. A steady-state analysis of ...

    • Harmonic Response of Masses on an Elastic Half Space 

      G. B. Warburton; J. D. Richardson; J. J. Webster (The American Society of Mechanical Engineers (ASME), 1972)
      A number of elastic half-space problems which are related to the response and interaction between foundations subjected to harmonic excitation are considered. Results are given for the amplitudes ...

    • A Simulation Model for Flexible Rotating Equipment 

      D. W. Childs (The American Society of Mechanical Engineers (ASME), 1972)
      The objective of the analysis which follows is the derivation of simulation models for flexible rotating equipment such as turbine rotors. The analysis employed is based on relatively simple ...

    • Sum and Difference Frequencies in Vibration of High Speed Rotating Machinery 

      F. F. Ehrich (The American Society of Mechanical Engineers (ASME), 1972)
      A vibration incident on a gas turbine engine was noted where two major excitation frequencies were involved—an excitation synchronous with rotor rotation, associated with rotor unbalance, and an ...

    • Subharmonic Rotor Instability Due to Elastic Asymmetry 

      E. E. Messal; R. J. Bonthron (The American Society of Mechanical Engineers (ASME), 1972)
      Experimental studies were made of the instabilities of the lateral motion of a vertical rotor consisting of an asymmetric shaft having a central disk, a built-in upper bearing support, and an ...

    • Analysis and Experiments on Multi-Plane Balancing of a Flexible Rotor 

      J. W. Lund; J. Tonnesen (The American Society of Mechanical Engineers (ASME), 1972)
      The accuracy of the conventional method of field balancing is investigated. A test rotor is provided with a known set of unbalance weights and is subsequently field-balanced by the trial-weight ...

    • Resonance Response Criteria of a Damped Three-Layered Beam 

      D. J. Mead; R. A. Di Taranto (The American Society of Mechanical Engineers (ASME), 1972)
      The vibration damping ability of a laminated elastic-viscoelastic-elastic layered simply-supported beam is analytically investigated. The criteria for damping ability of this beam, at resonance, is ...

    • Nonlinear Response of Gas-Lubricated Shrouded Rayleigh-Step Thrust Pad 

      C. Cheng; H. S. Cheng (The American Society of Mechanical Engineers (ASME), 1972)
      The quasi-static pressure characteristics of a gas-lubricated thrust bearing with shrouded Rayleigh-step pads are determined for a time-varying film thickness. The axial response of the thrust ...

    • A Finite Element Model for Distributed Parameter Turborotor Systems 

      R. L. Ruhl; J. F. Booker (The American Society of Mechanical Engineers (ASME), 1972)
      A specific numerical calculation procedure is outlined for a general turborotor-bearing system in which distributed inertia and elasticity are consistently represented. Bearings are represented by ...

    • The Effect of Liquids on the Dynamic Motions of Immersed Solids 

      R. J. Fritz (The American Society of Mechanical Engineers (ASME), 1972)
      It is known that the presence of liquids can significantly affect the dynamic motions of immersed solids. This paper proposes a method for evaluating fluid forces for use in the dynamic ...