Now showing items 1-20 of 840

  • Tests of propellers for Alvin side propulsion units 

    Sharp, Arnold G.; Sullivan, James R. (Woods Hole Oceanographic Institution, 1967-07)
    Full scale dynamometer tests were run on a series of unshrouded propellers in the range of propeller diameters considered practical for use on the side propulsion units of the research submarine ALVIN. Measurements taken ...
  • Hand tools and mechanical accessories for a deep submersible 

    Winget, Clifford L. (Woods Hole Oceanographic Institution, 1969-05)
    This report presents the design and construction details for various mechanical hand tools and accessories used by a manned deep submersible. The tools require the use of a mechanical manipulator, and were designed specifically ...
  • Analysis & experimental evaluation of single point moored buoy systems 

    Berteaux, Henri O.; Walden, Robert G. (Woods Hole Oceanographic Institution, 1969-05)
    This report reviews the analysis and the evaluation of surface buoy systems performed in the Engineering Department of the Woods Hole Oceanographic Institution in 1968. The buoy systems considered are single point moored, ...
  • Experimental stress analysis of model of emergency forebody release device used in deep diving research submarines Alvin, Sea Cliff and Turtle 

    Sharp, Arnold G.; Sullivan, James R. (Woods Hole Oceanographic Institution, 1969-08)
    Tests were conducted on a full-scale model of the emergency forebody release used in the deep-diving submarines ALVIN, SEA CLIFF and TURTLE. The model was machined from metal to the same dimensional tolerances as the ...
  • Dynamic analysis of a launch and recovery system for a deep submersible 

    Vandiver, J. Kim (Woods Hole Oceanographic Institution, 1969-12)
    An analysis of the motion of a docking platform for a deep submersible is presented. The problem is defined as a docking platform, or cradle, suspended beneath a surface vessel by elastic elements, composed of cable, ...
  • Torque tests of a full size model of the Alvin/AUTEC emergency sphere release 

    Sharp, Arnold G.; Sullivan, James R. (Woods Hole Oceanographic Institution, 1970-11)
    Laboratory torque tests were perfoirmed using an actual emergency sphere release shaft of the type used in the research submarines ALVIN, SEA CLIFF and TURTLE. A test fixture was constructed which permitted laboratory ...
  • Drag coefficients of vibrating synthetic rope 

    Charnews, Daniel Paul (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1971-09)
    The drag, amplitude, frequency tension, diameter and length of synthetic ropes vibrating because of vortex-induced forces, and net vibrating at different tensions were measured. Photographs were taken of the vortices. Drag ...
  • Motion sensitivity of flame ionization detectors 

    Gularte, Ronald Carl (Woods Hole Oceanographic Institution, 1972-05)
    A portable gas chromatograph, using a single flame ionization detector, was constructed. The unit was tested for response to surge, sway and heave accelerations up to 0.3g. Also the detector's response was studied for ...
  • An experimental analysis of the dynamics of a submerged tethered cradle in a seaway 

    Cohen, Jay Martin (Woods Hole Oceanographic Institution, 1972-06)
    Submerged recovery of small submersibles by means of surface tethered platforms offers the possibility of operations in sea states higher than is now possible using surface recovery means. The Woods Hole Oceanographic ...
  • The design of an instrument to measure vertically averaged oceanic currents using geomagnetic electric fields 

    Poranski, Peter Frank (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1972-08)
    A bottom mounted electromagnetic current meter measures the vertically-averaged conductivity-weighted velocity. This measurement complements free-fall relative velocity profiles and is valuable for transport determination ...
  • Investigation into the feasibility of detecting salt fingers optically 

    Albro, Carl S. (Woods Hole Oceanographic Institution, 1972-08)
    During the last decade there has been increasing interest in discovering the existance of salt fingering in the ocean. The purpose of this investigation was to determine the feasibility of optically detecting ...
  • Handbook of oceanographic engineering materials : volume I - metals and alloys 

    Dexter, Stephen C. (Woods Hole Oceanographic Institution, 1972-12)
    This handbook is intended to serve as an aid in materials selection to Oceanographic engineers and designers. As such it is intentionally limited to materials that may be used advantageously in the marine environment.
  • The design of a surface launch and recovery fender for DSRV "Alvin" 

    O'Sullivan, James Francis (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1973-09)
    Surface recovery of small submersibles could be made safer for personnel and hardware with the installation on the submersible of an inflatable, pneumatic bumper which acts also as main surface buoyancy. Tne use of such ...
  • An acoustic navigation system 

    Hunt, Mary M.; Marquet, William M.; Moller, Donald A.; Peal, Kenneth R.; Smith, Woollcott K.; Spindel, Robert C. (Woods Hole Oceanographic Institution, 1974-12)
    This report describes a system for underwater acoustic navigation developed, and in use, at the Woods Hole Oceanographic Institution. It includes a brief discussion of the electronic components, operation, mathematical ...
  • Analysis of a high resolution deep ocean acoustic navigation system 

    Durham, James Leighton (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-01)
    A high resolution acoustic navigation system for ocean use is being developed at the Woods Hole oceanographic Institution. The system can yield navigation fixes with respect to a bottom moored reference net with accuracies ...
  • Structural evaluation of fixed offshore platforms 

    Vandiver, J. Kim (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-01)
    In fixed offshore structures, damage incurred below the waterline is often difficult to detect, but significant enough to be the source of a subsequent massive failure. A technique is described that can be used to detect ...
  • Creep buckling of shells of revolution loaded under uniform external pressure 

    Sullivan, Paul Francis (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-01)
    A theoretical investigation is undertaken into the creep instability of two common shells of revolution, the infinitely long cylinder and the complete sphere. The linear and non-linear visco-elastic material idealizations ...
  • The tangential drag of an axially oscillating cylinder 

    Tapscott, Susan Schultz (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-09)
    An experimental investigation of the tangentiaì drag of an axially oscillating cylinder is presented. Deep-sea mooring cables are oscillated sinusoidally at ocean wave amplitudes and frequencies, and experimenta1 values ...
  • The effect of internal waves on long range acoustic propagation in the ocean 

    Jaffee, Richard Jay (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-05)
    The acoustic-internal wave interaction in an acoustic waveguide is investigated using wave techniques. Refractive index fluctuations due to the vertical displacements of the internal waves create an inhomogeneous ...
  • A pendulum inclinometer for use with small deep-submersibles 

    Sharp, Arnold G.; Sullivan, James R. (Woods Hole Oceanographic Institution, 1976-09)
    The authors developed a pendulum inclinometer suitable for use with small deepsubmersibles or surface craft. The instrument uses a relatively short heavy pendulum and a viscous damping system for minimizing the effects ...