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12
Jun 18, 2020
06/20
by
Ambrose, James E
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viii, 142 p. : 29 cm
Topics: Building fittings, Buildings -- Mechanical systems, Building -- Planning
2,801
2.8K
Mar 4, 2009
03/09
by
NASA LaRC Office of Education
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NASA Connect Segment explaining mechanical systems. It also compares and contrasts a mechanical system to the system of the International Space Station and Personal Satellite Assistants.
Topics: NASA Connect, Mechanical Systems, International Space Station, Personal Satellite Assistant
Source: http://nasa.ibiblio.org/details.php?videoid=6037&start=0&subject=Technology
Magnetic, angular rate, and gravity (MARG) sensor modules have extensive applications in inertial navigation and motion tracking. A wide assortment of these sensor modules exist at varying cost points. In the current fiscal environment, affordable devices are needed; however, performance cannot be sacrificed. The main purpose of the study is to devise a series of tests to evaluate the dynamic accuracy of the LORD MicroStrain® 3DM-GX4-25 Attitude Heading Reference System (AHRS). Previous NPS...
Topics: magnetic, angular rate, and gravity, MARG, micro-electro-mechanical systems, MEMS, quaternion
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45
Mar 26, 2020
03/20
by
Richard Kadulski
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Solplan Review - the independent journal of energy conservation, building science and construction practice in Canada
Topics: Solplan Review, energy conservation, building science, residential construction, Canada,...
776
776
Nov 13, 2012
11/12
by
DEPARTMENT OF THE ARMY
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Topics: control, military engineering, surveillance, communications, command, computer intelligence,...
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74
Jun 18, 2016
06/16
by
Impact Journals
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The attractive properties of graphene and its composites have led to the study of numerous applications such as transistors, biosensors, energy storage devices, nano-electro-mechanical systems and others; the past decade has witnessed the rapid growth of carbon nanotechnology. More research in the area will help the development of next generation graphene based composites and hybrid materials. In this study, samples composite materials used for manufacturing by hand layout technique which...
Topics: Modification Polymer Matrix Composites, Transistors, Biosensors, Energy Storage Devices,...
661
661
Nov 13, 2012
11/12
by
DEPARTMENT OF THE ARMY
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Topics: control, military engineering, electrical systems, surveillance, communications, command, computer...
Micro-electro-mechanical systems (MEMS) inertial sensors are commonly used in applications such as inertial navigation or human motion tracking. These inertial sensors provide three-dimensional (3D) orientation, acceleration, rate of turn, and magnetic field information. Manufacturers specify both static and dynamic accuracy for the 3D orientation output of MEMS inertial sensors. The dynamic accuracy is in the form of a root-mean-square (RMS) error and is only valid for certain motions, which...
Topics: Micro-electro-mechanical systems, MEMS, Xsens, MTx, dynamic accuracy, human motion tracking,...
Any device or machine that needs regular monitoring and inspection for its better life and maintenance. Condition monitoring of machines in time and frequency domain is definitely necessary to maintain the reliability. Condition monitoring is the way toward observing a parameter of condition in machinery (vibration, temperature and etc.), with a specific end goal to recognize a significant change which is indicative of a developing fault. It is a major component of predictive maintenance and...
Topics: Portable Reciprocating Air Compressor, Mems(micro electro mechanical systems), WIFI Module ESP8266,...
With majestic aesthetic beauty and enormous research notential glaciers and snow fields in the Himaiaya always draw attention of the mountain-lovers and environmental researchers. Mountaineers and trekkers, however, have difficulties in distinguishing snow-patches from glaciers. They often traverse numerous semi-permanent snow patches of avalanche-type while negotiating high ridges and summit1 and by mistake identify them as glaciers. By doing so the ignore the fact that these two typical...
Topics: Engineering Physics, Micro electro mechanical systems, Palladium, Poly Methyl Meth acryl ate...
6
6.0
Oct 29, 2021
10/21
by
Nelson, Gordon, 1930-
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160 pages : 25 cm
Topics: Building fittings -- Design and construction, Buildings -- Mechanical systems -- Design and...
MEC ENG 102A LEC 001 Sp13 Introduction to Mechanical Systems for Mechatronics
Topics: UC Berkeley, Berkeley, Cal, webcast.berkeley, iTunes U, Business, Education, course, Mechanical...
2,105
2.1K
Mar 4, 2009
03/09
by
NASA LaRC Office of Education
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NASA Connect Video containing six segments as described below. NASA Connect Segment exploring the aspects of microgravity and how it affects objects in space. Explores object motion and friction and tests the PSA prototype in accordance with these forces. NASA Connect Segment exploring more aspects of the Personal Satellite Assistant. It explains motion and its relationship with the mass of objects in connection to the PSA. NASA Connect Segment explaining mechanical systems. It also compares...
Topics: NASA Connect, Gravity, Personal Satellite Assistant, Friction, Newton, International Space Station,...
Source: http://nasa.ibiblio.org/details.php?videoid=6034&start=0&subject=Technology
This grant provided for the purchase of a high temperature vacuum and controlled atmosphere furnace system. A Brew model 1052 was acquired, with a temperature capability of 1650 C. The furnace chamber has been mounted in the load frame of a servohydraulic mechanical tester with high load capacity and stroke rate capability. Together these comprise a unique test facility for determining the mechanical behavior and processing characteristics of high temperature structural materials.
Topics: DTIC Archive, Thomas, Jr, Joseph F, WRIGHT STATE UNIV DAYTON OH DEPT OF MECHANICAL SYSTEMS...
A three-dimensional viscous computer code (VANS/MD) was employed to calculate the turbulent flow field at the end wall leading edge region of a 20 inch axial annular turbine cascade. The initial boundary layer roll-up and formation of the end wall vortices were computed at the vane leading edge. The calculated flow field was found to be periodic with a frequency of approximately 1600 Hz. The calculated size of the separation region for the hub endwall vortex compared favorably with measured...
Topics: DTIC Archive, Walitt,L, THERMO MECHANICAL SYSTEMS CO CANOGA PARK CALIF, *VORTICES, *FLOW FIELDS,...
A redundant sensor array is a device composed of more than one sensor of a given type, for example an array of rate gyroscopes. Previous work has shown that redundancy can enhance the failure tolerance of the sensor suite and can also be leveraged to improve the accuracy of the measurements. This thesis further explores the possibility of improving the performance of low-cost micro-electro-mechanical (MEMS) gyroscopes using the redundancy concept. To this end, an experimental sensor array test...
Topics: optimal redundant sensor, micro-electro-mechanical systems (MEMS) gyroscope arrays, improve...
For numerical analysis of shock wave propagation in gas-particle mixtures, drag coefficients of a sphere in steady flows are generally used. However, it is shown both experimentally and numerically that a shock loaded solid sphere experiences unsteady drag forces. The paper describes a model of unsteady drag force and its effect on the structure of the non-equilibrium region behind a shock front traveling in a dusty gas. The results are compared with those obtained by using a steady drag...
Topics: DTIC Archive, Saito, Tsutomu, MURORAN INST OF TECH (JAPAN) DEPT OF MECHANICAL SYSTEMS ENGINEERING,...
Bell System Technical Journal, 27: 4 October 1948 pp 657-683. Transients in Mechanical Systems (Muller, J.T.)
Topics: pulse, displacement, amplitude, whip, transform, mechanical, transients, triangular, system, mass,...
The VANS successive approximation numerical method has been extended to the computation of 3-D, viscous, transonic flows in turbomachines. The principal development reported herein is the generation of a cross-sectional computer code, which conserves mass flux at each point of the cross-sectional surface of computation. In the VANS numerical method, the cross-sectional computation follows a blade-to-blade calculation. The VANS blade-to-blade code was developed earlier. Numerical calculations...
Topics: DTIC Archive, Walitt,Leonard, THERMO MECHANICAL SYSTEMS CO CANOGA PARK CALIF, *Three dimensional...
The effects of surface plasmon on the performance of organic solar cells were investigated. Metallic nanoparticles fabricated using thermal anneal and Nanosphere lithography were experimentally and theoretically studied to understand their corresponding surface plasmon resonance. Near-field Scanning Optical Microscopy (NSOM) was used to investigate the strength of the optical near-field that is very close to the metal nanoparticles when illuminated with light that was resonant to the metal...
Topics: DTIC Archive, NATIONAL CHENG KUNG UNIV TAINAN (TAIWAN) INSTITUTE OF MICRO-ELECTRO-MECHANICAL...
An analytical and experimental investigation was conducted to determine the most practical method of surge control for advanced diesel turbocharger compressors. Results of the analysis indicated that a vaned diffuser actuation system represented a good method of achieving effective regulation over a broad range of flow rates. Bench testing of the fabricated hardware indicated that the variable diffuser method has the ability to regulate flow and control surge without excessive reduction of...
Topics: DTIC Archive, Oatway, Thomas P, THERMO MECHANICAL SYSTEMS CO CANOGA PARK CA, *DIESEL ENGINES,...
The analysis, design, fabrication and experimental testing of a twin spool turbocharger was conducted for the Cummins NTC-475 diesel engine. Two major designs of the twin-spool turbocharger were fabricated and tested: 1) Compact design, concentric shaft-to-shaft bearing coupled turbocharger incorporating a) split 40 deg backswept impeller, b) split AiResearch Ti8A85 turbine rotor, c) adjustable vaned compressor diffuser, and d) nozzleless AiResearch turbine (volute) housing; and 2)...
Topics: DTIC Archive, Hess, Richard, THERMO MECHANICAL SYSTEMS CO CANOGA PARK CA, *DIESEL ENGINES,...
63,813
64K
Aug 25, 2011
08/11
by
MIT OpenCourseWare
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This class is an introduction to the dynamics and vibrations of lumped-parameter models of mechanical systems. Topics include kinematics; force-momentum formulation for systems of particles and rigid bodies in planar motion; work-energy concepts; virtual displacements and virtual work; Lagrange's equations for systems of particles and rigid bodies in planar motion; linearization of equations of motion; linear stability analysis of mechanical systems; free and forced vibration of linear...
Topics: dynamics and vibrations of lumped-parameter models, mechanical systems, Kinematics, Kane's method,...
426
426
Dec 7, 2010
12/10
by
MIT OpenCourseWare
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Material covered in this course includes the following topics: * Laws of thermodynamics: general formulation and applications to mechanical, electromagnetic and electrochemical systems, solutions, and phase diagrams * Computation of phase diagrams * Statistical thermodynamics and relation between microscopic and macroscopic properties, including ensembles, gases, crystal lattices, phase transitions * Applications to phase stability and properties of mixtures * Computational modeling * Interfaces
Topics: thermodynamics, mechanical, electromagnetic and electrochemical systems, phase diagrams,...
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32
May 17, 2022
05/22
by
Deepak Uttamchandani
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The increasing demand for mobile and wireless sensing necessitates the use of highly integrated technology featuring small size, low weight, high performance and low cost: micro-electro-mechanical systems (MEMS) can meet this need. The Handbook of MEMS for wireless and mobile applications provides a comprehensive overview of radio frequency (RF) MEMS technologies and explores the use of these technologies over a wide range of application areas. With its distinguished editor and international...
Topics: micro electro mechanical systems, biomedical, woodhead
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72
Mar 4, 2018
03/18
by
National Highway Traffic Safety Administration
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This report studies the mechanical and driver-related systems of the Audi5000 capable of producing unintended acceleration.
Topics: mechanical systems, driver-related systems, AUDI5000, UA, unintended acceleration
99
99
Jul 16, 2020
07/20
by
Ivan Nazarenko, Leonid Pelevin, Oleksandr Kostenyuk, Oleg Dedov, Anatoly Fomin, Mykola Ruchynskyi, Anatoly Sviderskyi, Yevhen Mishchuk, Volodymyr Slipetskyi
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The monograph is devoted to the development of mechanical systems with dynamic effects on processing media. A new approach and methodology is proposed, taking into account the influence of energy fields of physical and me-chanical effects, the transformation and inversion of types of energy exposure. The model of dispersed media under consideration in the range of the process of destruction, grinding and compaction is considered. The revealed changes in the parameters of subsystems: working...
Topics: Mechanical systems, technological media, destruction, grinding, compac-tion, model, parameters,...
