Dynamic Contact between a Wire Rope and a Pulley Using Absolute Nodal Coordinate Formulation
Machines, 2016 Wire rope and pulley devices are used in various machines. To use these machines more safely, it is necessary to analyze the behavior of the contact between them. In this study, we represent a wire rope by a numerical model of a flexible body.
Shoichiro Takehara +2 more
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Three-algebra for supermembrane and two-algebra for superstring
, 2009 While string or Yang-Mills theories are based on Lie algebra or two-algebra structure, recent studies indicate that M-theory may require a one higher, three-algebra structure. Here we construct a covariant action for a supermembrane in eleven dimensions,
C. Krishnan +28 more
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A Mode Propagation Database Suitable for Code Validation Utilizing the NASA Glenn Advanced Noise Control Fan and Artificial Sources [PDF]
The NASA Glenn Research Center's Advanced Noise Control Fan (ANCF) was developed in the early 1990s to provide a convenient test bed to measure and understand fan-generated acoustics, duct propagation, and radiation to the farfield.
Sutliff, Daniel L.
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L'Octuor De Violoncelles, Tuesday, March 30, 1999 [PDF]
, 1999 This is the concert program of the L'Octuor De Violoncelles performance on Tuesday, March 30, 1999 at 6:00 p.m., at the Boston University Concert Hall, 855 Commonwealth Avenue, Boston, Massachusetts. Works performed were Totem by Georges Aperghis, Sonate
School of Music, Boston University
core
A Multi-Leveled Coordinate for Multibody Mechanics
MATEC Web of Conferences, 2016 For a proper way of modelling and simulation, as well as the precise and completeness, and a new multi-level method named homogeneous tensor coordinate(HTC) was developed by improving the absolute nodal coordinate formulation(ANCF) and the homogeneous ...
Shen Fan +3 more
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Predicted and Measured Modal Sound Power Levels for a Fan Ingesting Distorted Inflow [PDF]
Refinements have been made to a method for estimating the modal sound power levels of a ducted fan ingesting distorted inflow. By assuming that each propagating circumferential mode consists only of a single radial mode (the one with the highest cut-off ...
Figure +4 more
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Design of an Advanced Inlet Liner for the Quiet Technology Demonstrator 3 [PDF]
The utilization of advanced fan designs (including higher bypass ratios) and shorter engine nacelles has highlighted a need for increased fan noise reduction over a broad frequency range.
Jones, Michael G., Nark, Douglas M.
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Boston University Women's Chorale and Repertory Chorus, April 15, 1998 [PDF]
, 1998 This is the concert program of the Boston University Women's Chorale and Repertory Chorus performance on Wednesday, April 15, 1998 at 8:30 p.m., at Marsh Chapel, 735 Commonwealth Avenue. Works performed were Salut Primtemps by Claude Debussy, Gesänge für
School of Music, Boston University
core
Advanced Noise Control Fan Aerodynamic Performance [PDF]
The Advanced Noise Control Fan at the NASA Glenn Research Center is used to experimentally analyze fan generated acoustics. In order to determine how a proposed noise reduction concept affects fan performance, flow measurements can be used to compute ...
Bozak, Richard F., Jr.
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Dynamics Analysis of Multibody Systems Based on Flexible Thermal Coupling Solid Elements
ActuatorsIn high-precision fields such as automotive and aerospace, solid elements are commonly used to verify the dynamic response of key components, which can comprehensively simulate three-dimensional stress, deformation, and temperature field changes. In this
Zuqing Yu, Yibin Shen
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