Michael S Triantafyllou from 77 Massachusetts Ave, Cambridge, MA 02139, age 72

Professor

view source

Location:

Cambridge, MA

Industry:

Higher Education

Work:

Massachusetts Institute of Technology (Mit)
Professor

Michael Triantafyllou

view source

Michael Triantafyllou is Professor of Mechanical and Ocean Engineering in the Department of Mechanical Engineering, Director of the Center for Ocean Engineering, Head of the Area of ...

Triantafyllou

view source

Triantafyllou is a Greek surname. Notable people with surname Triantafyllou: Michael Triantafyllou, Greek mechanical engineer; Soti Triantafyllou, Greek writer

Us Patents

Method And Apparatus For Reducing Drag On A Moving Body
view source
US Patent:

57407509, Apr 21, 1998
Filed:

May 28, 1996
Appl. No.:

8/652673
Inventors:

Michael Triantafyllou - Belmont MA
David S. Barrett - Needham MA
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63B 134
US Classification:

114 67R
Abstract:

A method and apparatus for providing reduced drag on a body moving in a direction D through a selected fluid medium at a speed U which is normally sufficient to cause turbulence. Reduced drag is generally accomplished by flexing at least the outer surface of at least the rear third of the body to produce a wave-like motion of the body having a wavelength of between 0. 5 and 2. 0 times the length of the body, a reduced frequency value. OMEGA. between 0. 1 and 0. 5 and a time delay between successive points on the body reaching peaks for their flex motion which is directly proportional to the distance x. sub. i in the direction D of the point from a reference point on the body and inversely proportional to the phase speed c. sub. p of the wave. A variety of techniques are described for achieving the desired wave-like motion.

Propulsion Mechanism Employing Flapping Foils
view source
US Patent:

54011965, Mar 28, 1995
Filed:

Nov 18, 1993
Appl. No.:

8/154260
Inventors:

Michael S. Triantafyllou - Belmont MA
David S. Barrett - Needham MA
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63H 136
US Classification:

440 13
Abstract:

A propulsion system for use in a fluid, the system utilizing at least one foil which is both oscillated at a frequency f with an amplitude a in a direction substantially transverse to the propulsion direction and flapped or pitched about a pivot point to change the foil pitch angle to the selected direction of motion with a smooth periodic motion. Parameters of the system including Strouhal number, angle of attack, ratio of the distance to the foil pivot point from the leading edge of the foil to the chord length, the ratio of the amplitude of oscillation to the foil chord width and the phase angle between heave and pitch are all selected so as to optimize the drive efficiency of the foil system.

Buoy Having Minimal Motion Characteristics
view source
US Patent:

47689846, Sep 6, 1988
Filed:

Apr 15, 1985
Appl. No.:

6/723407
Inventors:

Joao G. de Oliveira - Houston TX
Arthur W. Morton - Houston TX
Paul R. Erb - Houston TX
Michael S. Triantafyllou - Cambridge MA
Assignee:

Conoco Inc. - Ponca City OK
International Classification:

B63B 2218
US Classification:

441 21
Abstract:

The present invention provides a service buoy for performing direct wireline maintenance of a subsea well. The buoy is maintained in position over the well by a rigid riser kept under tension and which allows for the well re-entry. The primary buoyant body of the buoy is maintained permanently submerged and a truss structure presenting the minimum surface area to the action of wind and waves extends above the sea level to support a small deck from which the wireline work can be performed. The centers of gravity and buoyancy for the buoy are in close proximity so as to minimize lateral surge and sway motions of the installed buoy.

Human Powered Marine Vehicle And Method For The Operation Thereof
view source
US Patent:

59973692, Dec 7, 1999
Filed:

Apr 17, 1998
Appl. No.:

9/062121
Inventors:

Michael S. Triantafyllou - Belmont MA
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63H 1600
US Classification:

440 21
Abstract:

A human powered marine vehicle is provided having a rigid front section and a flexible rear section which may be flexed at at least two point therealong. The arms and/or legs of one or more persons in the vehicle are used to power actuators for each flex point, which actuators are operated so as to provide a predetermined relationship, and in particular at least a predetermined phase relationship, between flexure at the various points so that the flexible section moves with a wave or fish-like motion. The person(s) operating the vehicle is trained so as to maintain the predetermined relationship and various techniques are disclosed to assist the operator(s), or otherwise facilitate, the maintenance of the desired relationship.

Underwater Vehicle Design And Control Methods
view source
US Patent:

20180281912, Oct 4, 2018
Filed:

Jun 4, 2018
Appl. No.:

15/997050
Inventors:

- Cambridge MA, US
Haruhiko Harry Asada - Lincoln MA, US
Michael S. Triantafyllou - Belmont MA, US
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63G 8/00
B63G 8/08
Abstract:

Vehicles designed to use ground effect forces to control a positioning of the vehicle relative to a surface as well as their methods of use are described.

Chemical Sensor For Heavy Metal Detection
view source
US Patent:

20180196025, Jul 12, 2018
Filed:

Jul 5, 2016
Appl. No.:

15/741977
Inventors:

- Singapore, SG
- Cambridge MA, US
Michael S. TRIANTAFYLLOU - Cambridge MA, US
Assignee:

Nanyang Technological University - Singapore
Massachusetts Institute of Technology - Cambridge MA
International Classification:

G01N 33/18
G01N 27/42
Abstract:

A chemical sensor for heavy metal detection is provided. The chemical sensor includes an inlet, a chamber in fluid communication with the inlet, and an outlet in fluid communication with the chamber. A working electrode is provided in the chamber. The working electrode includes a plurality of protrusions extending into a fluid flow path in the chamber beyond a boundary layer of the fluid flow path. The chemical sensor also includes a reference electrode, a counter electrode, and a plurality of contact pads electrically connected to respective ones of the working electrode, the reference electrode and the counter electrode.

Underwater Vehicle Design And Control Methods
view source
US Patent:

20160257385, Sep 8, 2016
Filed:

Mar 3, 2016
Appl. No.:

15/060571
Inventors:

- Cambridge MA, US
Haruhiko Harry Lincoln - Asada MA, US
Michael S. Triantafyllou - Belmont MA, US
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63G 8/00
B63G 8/08
Abstract:

Vehicles designed to use ground effect forces to control a positioning of the vehicle relative to a surface as well as their methods of use are described.

Underwater Vehicle Design And Control Methods
view source
US Patent:

20160257386, Sep 8, 2016
Filed:

Mar 3, 2016
Appl. No.:

15/060575
Inventors:

- Cambridge MA, US
Haruhiko Harry Asada - Lincoln MA, US
Michael S. Triantafyllou - Belmont MA, US
Assignee:

Massachusetts Institute of Technology - Cambridge MA
International Classification:

B63G 8/00
B63G 8/08
Abstract:

Vehicles designed to use ground effect forces to control a positioning of the vehicle relative to a surface as well as their methods of use are described.

Michael Triantafyllou

Work:

Company:

National Technical University of Athens • Massachusetts Institute of Technology faculty

Position:

Chairman

Education:

Studied at:

National Technical University of Athens

Specialty:

Director

Academic degree:

Professor

Professions and applied sciences:

Naval architecture

Skills & Activities:

Michael Triantafyllou " Michael Triantafyllou " is Professor of Mechanical and Ocean Engineering in the Department of Mechanical Engineering, Director of the Center for Ocean Engineering, Head of the Area of Ocean Science and Engineering, and Director of the Testing Tank and Propeller Tunnel Facilities at the Massachusetts Institute of Technology ( MIT ).