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The Experimental Determination of the Moment of Inertia of a Model Airplane Michael Koken [email protected]
The University of Akron IdeaExchange@UAkron The Dr. Gary B. and Pamela S. Williams Honors Honors Research Projects College Fall 2017 The Experimental Determination of the Moment of Inertia of a Model Airplane Michael Koken [email protected] Please take a moment to share how this work helps you through this survey. Your feedback will be important as we plan further development of our repository. Follow this and additional works at: http://ideaexchange.uakron.edu/honors_research_projects Part of the Aerospace Engineering Commons, Aviation Commons, Civil and Environmental Engineering Commons, Mechanical Engineering Commons, and the Physics Commons Recommended Citation Koken, Michael, "The Experimental Determination of the Moment of Inertia of a Model Airplane" (2017). Honors Research Projects. 585. http://ideaexchange.uakron.edu/honors_research_projects/585 This Honors Research Project is brought to you for free and open access by The Dr. Gary B. and Pamela S. Williams Honors College at IdeaExchange@UAkron, the institutional repository of The nivU ersity of Akron in Akron, Ohio, USA. It has been accepted for inclusion in Honors Research Projects by an authorized administrator of IdeaExchange@UAkron. For more information, please contact [email protected], [email protected]. 2017 THE EXPERIMENTAL DETERMINATION OF A MODEL AIRPLANE KOKEN, MICHAEL THE UNIVERSITY OF AKRON Honors Project TABLE OF CONTENTS List of Tables ................................................................................................................................................ -
Rotational Motion (The Dynamics of a Rigid Body)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Robert Katz Publications Research Papers in Physics and Astronomy 1-1958 Physics, Chapter 11: Rotational Motion (The Dynamics of a Rigid Body) Henry Semat City College of New York Robert Katz University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/physicskatz Part of the Physics Commons Semat, Henry and Katz, Robert, "Physics, Chapter 11: Rotational Motion (The Dynamics of a Rigid Body)" (1958). Robert Katz Publications. 141. https://digitalcommons.unl.edu/physicskatz/141 This Article is brought to you for free and open access by the Research Papers in Physics and Astronomy at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Robert Katz Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. 11 Rotational Motion (The Dynamics of a Rigid Body) 11-1 Motion about a Fixed Axis The motion of the flywheel of an engine and of a pulley on its axle are examples of an important type of motion of a rigid body, that of the motion of rotation about a fixed axis. Consider the motion of a uniform disk rotat ing about a fixed axis passing through its center of gravity C perpendicular to the face of the disk, as shown in Figure 11-1. The motion of this disk may be de scribed in terms of the motions of each of its individual particles, but a better way to describe the motion is in terms of the angle through which the disk rotates. -
Elevator Design Book. Synergy ® and Evolution ® Design Contents
Elevator Technology Elevator design book. synergy ® and evolution ® Design Contents synergy and evolution 04 Philosophy. Design line architecture 05 How to define your personal cabin 06 F design line 07 E design line 15 D design line 29 C design line 43 B design line 55 A design line 71 Cabin and landing fixtures 85 Planning tools 92 About us 93 We have turned our elevators into an architectural design element, providing users with a great thyssenkrupp ambiance they can see and feel. New design collection for synergy and evolution elevators offers a wide range of attractive styles and moods. Perfect, down to the detail. Every single element reflects our commitment to creating the optimum ride experience. From functional, robust cabin interiors to a luxurious look and feel: all design elements speak a clear language and provide exceptional quality. Our many combination possibilities allow you to select a design that perfectly meets your individual taste and needs. 4 synergy and evolution. Design line architecture. 5 synergy and evolution. Design line architecture. Our synergy and evolution elevators combine state-of-the-art technology with flexible Our synergy and evolution elevators feature new design lines, which are named with design. Immerse yourself in the design world of these two elevator families and choose letters from “F” to “A”. “F” indicates a more functional, robust design line, whereas “A” the design that suits your taste and requirements. portrays the premium designs. Our designers have developed predesigned cabins in various ambiances for each design line. In addition, the design lines A, B, E and D offer synergy evolution the opportunity to configure cabins according to your individual taste - truly custom fit. -
Clear Wall Planning Guide
Clear Wall Planning Guide December 2020 Clear Wall Planning Guide 1 Contents Five steps to specs ...................................................................................... 3 Design and Installation Planning .....................................................4 - 11 Space Planning, Site Survey and Measurement...........6 - 10 Planning Checklist ...........................................................................11 Components .........................................................................................12 - 25 Framing Elements ...................................................................13 -15 Transition Connectors ...........................................................15 - 16 Glass Inserts................................................................................ 17-18 Copolymer Strips ........................................................................... 19 Doors ..................................................................................................20 Door Sections ......................................................................... 21 - 23 Door Hardware ......................................................................24 - 25 Power/Data .................................................................................................. 26 Installation ...........................................................................................27 - 40 Clear Wall Planning Guide 2 5 Steps Five steps to specs: 1. Pre-qualify the project 2. Select Framing Elements 3. Select -
Townhouse Or Two-Family Dwelling?
TWO-FAMILY DWELLING, TWO-UNIT TOWNHOUSE and TOWNHOUSE BUILDINGS and the 2020 MINNESOTA RESIDENTIAL CODE Minnesota Department of Labor and Industry DEFINITIONS A two-family dwelling (IRC-2 occupancy) is: • A building containing two separate dwelling units. • The separation between units is either horizontal or vertical. • Both units are on one lot. • Sometimes referred to as “duplexes.” A townhouse (IRC-3 occupancy) is: • A single-family dwelling unit constructed in a group of two or more attached dwelling units. • Each unit is a separate building and extends from the foundation to the roof with open space on at least two sides of each unit. • Each unit is provided with separate building service utilities required by other chapters of the State Building Code. • A two-unit townhouse is sometimes referred to as a “twin-home.” DISTINCTION The primary differences between a two-family dwelling and a two-unit townhouse or twin-home: • Property – A two-unit townhouse or twin-home is typically located on two separate individual lots with a property line running between them whereas both units of a two-family dwelling, or “duplex,” are located on the same single lot. • Separation – A two-unit townhouse must be separated from the foundation to the roof by a double wall (two one-hour walls, see exceptions below). The separation between units in a two-family dwelling can be provided by single one-hour fire-resistance-rated assembly that is horizontal or vertical. • Services – Since each townhouse unit is a separate building, each townhouse unit must be supplied with separate utilities. Units classified as townhouses must be supplied by separate electrical services. -
Pierre Simon Laplace - Biography Paper
Pierre Simon Laplace - Biography Paper MATH 4010 Melissa R. Moore University of Colorado- Denver April 1, 2008 2 Many people contributed to the scientific fields of mathematics, physics, chemistry and astronomy. According to Gillispie (1997), Pierre Simon Laplace was the most influential scientist in all history, (p.vii). Laplace helped form the modern scientific disciplines. His techniques are used diligently by engineers, mathematicians and physicists. His diverse collection of work ranged in all fields but began in mathematics. Laplace was born in Normandy in 1749. His father, Pierre, was a syndic of a parish and his mother, Marie-Anne, was from a family of farmers. Many accounts refer to Laplace as a peasant. While it was not exactly known the profession of his Uncle Louis, priest, mathematician or teacher, speculations implied he was an educated man. In 1756, Laplace enrolled at the Beaumont-en-Auge, a secondary school run the Benedictine order. He studied there until the age of sixteen. The nest step of education led to either the army or the church. His father intended him for ecclesiastical vocation, according to Gillispie (1997 p.3). In 1766, Laplace went to the University of Caen to begin preparation for a career in the church, according to Katz (1998 p.609). Cristophe Gadbled and Pierre Le Canu taught Laplace mathematics, which in turn showed him his talents. In 1768, Laplace left for Paris to pursue mathematics further. Le Canu gave Laplace a letter of recommendation to d’Alembert, according to Gillispie (1997 p.3). Allegedly d’Alembert gave Laplace a problem which he solved immediately. -
Magnetism, Angular Momentum, and Spin
Chapter 19 Magnetism, Angular Momentum, and Spin P. J. Grandinetti Chem. 4300 P. J. Grandinetti Chapter 19: Magnetism, Angular Momentum, and Spin In 1820 Hans Christian Ørsted discovered that electric current produces a magnetic field that deflects compass needle from magnetic north, establishing first direct connection between fields of electricity and magnetism. P. J. Grandinetti Chapter 19: Magnetism, Angular Momentum, and Spin Biot-Savart Law Jean-Baptiste Biot and Félix Savart worked out that magnetic field, B⃗, produced at distance r away from section of wire of length dl carrying steady current I is 휇 I d⃗l × ⃗r dB⃗ = 0 Biot-Savart law 4휋 r3 Direction of magnetic field vector is given by “right-hand” rule: if you point thumb of your right hand along direction of current then your fingers will curl in direction of magnetic field. current P. J. Grandinetti Chapter 19: Magnetism, Angular Momentum, and Spin Microscopic Origins of Magnetism Shortly after Biot and Savart, Ampére suggested that magnetism in matter arises from a multitude of ring currents circulating at atomic and molecular scale. André-Marie Ampére 1775 - 1836 P. J. Grandinetti Chapter 19: Magnetism, Angular Momentum, and Spin Magnetic dipole moment from current loop Current flowing in flat loop of wire with area A will generate magnetic field magnetic which, at distance much larger than radius, r, appears identical to field dipole produced by point magnetic dipole with strength of radius 휇 = | ⃗휇| = I ⋅ A current Example What is magnetic dipole moment induced by e* in circular orbit of radius r with linear velocity v? * 휋 Solution: For e with linear velocity of v the time for one orbit is torbit = 2 r_v. -
Simulation and Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings
Simulation and Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings by Robert Jack Bruckner Submitted in partial fulfillment of the requirements For the degree of Doctor of Philosophy Dissertation Advisor: Dr. Joseph M. Prahl Department of Mechanical and Aerospace Engineering CASE WESTERN RESERVE UNIVERSITY August, 2004 Dedications All of the work leading to and included in these pages is dedicated to the loving support of my family, Lisa, Eric, and Elisabeth Table of Contents CHAPTER 1 Introduction to Foil Bearings .........................................................................................17 1.1 Historical Context of Hydrodynamics.............................................................17 1.2 Foil Bearing State of the Art...........................................................................19 1.3 Aviation Turbofan Engine Application...........................................................22 1.4 Typical Geometries and Characteristics of Foil Thrust Bearings.....................23 CHAPTER 2 Development of the Governing Equations......................................................................29 2.1 The Generalized Foil Bearing Problem...........................................................29 2.2 Reynolds Equation .........................................................................................29 2.2.1 Development from Mass and Momentum Conservation..............................29 2.2.3 Cylindrical (Thrust Pad) Form of Reynolds Equation .................................40 -
Schindler 3300 MRL Traction Elevator Entrance Details
Schindler 3300 MRL Traction Elevator Entrance details Single-speed center opening (SSCO) side jamb Single-speed center opening (SSCO) top jamb 2 x 5/8” Gypsum board Wall 2HR fire rating thickness Door space (4.875”) 2 x 5/8” Gypsum board (Ref.) Wall thickness (Ref.) Wall rhickness (Ref.) Clear opening width 1” Gypsum board Rough opening width J-Runner See note A See note A 6.75” 6.75” Rough 4.25” opening 4.25” Wall thickness height Clear Wall thickness 4.75” Wall 4.75” opening thickness height See note B minus 4.25” Wall thickness minus 4.25” See note B 4 3/8”– 5 7/8” Two-speed side opening (2SSO) side jamb Two-speed side opening (2SSO) top jamb Door space (4.875”) Wall thickness (Ref.) Wall thickness (Ref.) Clear opening width Rough opening width See note A 6.75” See note A 2.5” 5.5” Rough 2.5” opening Wall thickness height 4.75” Clear Wall thickness Wall thickness Wall thickness minus 2.5” minus 2.5” opening 4.75” height See note B See note B Strike side Return side 4 3/8”– 5 7/8” Note A: Fire rating is maintained by the interface at this area only. Note B: Finished wall by others. No fire rating at this point. Wall thickness can vary, as jamb thickness remains constant. Dimensions Capacity lbs (kg) Door Type Clear Opening Width x Height ft (mm) Rough Opening Width x Height ft (mm) 2100 (950) 2SSO 3’- 0” x 7’- 0” (915 x 2134) 4’- 4” x 7’- 8” (1321 x 2337) 2SSO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) 2500 (1135) SSCO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) General Purpose 2SSO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) 3000 (1360) SSCO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) 2SSO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) 3500 (1590) SSCO 3’- 6” x 7’- 0” (1067 x 2134) 4’- 10” x 7’- 8” (1473 x 2337) Schindler 3300 MRL Traction Elevator Entrance details Landing door mounting options General requirements Requirements for installation vary by type of equipment selected. -
Save Space by Mounting Your Equipment to the Wall Or Other Surface
Vertical Wall-Mount Server Rack - Solid Steel - 6U StarTech ID: RK619WALLV This wall-mount bracket provides 6U of storage space to vertically mount your equipment on the wall. The 6U wall-mount rack is EIA-310-D compliant to ensure compatibility with any 19” rack-mount equipment, such as your power strips, telecommunication, network and A/V devices. Save space by mounting your equipment to the wall or other surface The 6U rack optimizes your working space by mounting equipment to your wall instead of taking up desk space or other surface area. It's perfect for your SoHo (small office, home office) environment, server room or any other location where available space is limited. Ensure a secure and hassle-free installation The wall rack is constructed of solid steel to ensure a sturdy and safe mounting solution for your expensive, mission-critical equipment. Also, because the wall mounting holes are positioned 16”apart, it exactly matches standard drywall construction framework to ensure simple and secure wall-stud anchoring. Cage nuts and screws are also included with the wall-mount bracket, to save you the hassle of sourcing separate mounting hardware. Customize your workspace with versatile installation options To provide a suitable mounting solution for virtually any surface such as your wall, ceiling or desk, the 6U bracket features separate mounting patterns for both ceilings and walls. This means that you can mount the bracket vertically to your wall or horizontally to your ceiling or under your desk. If you're looking for a mountable storage solution with fewer rack units, StarTech.com also offers a 1U wall- mount bracket, a 2U wall-mount bracket, a 3U wall-mount bracket and a 4U wall-mount bracket. -
Study on Mechanical Bearing Strength and Failure Modes of Composite Materials for Marine Structures
Journal of Marine Science and Engineering Article Study on Mechanical Bearing Strength and Failure Modes of Composite Materials for Marine Structures Dong-Uk Kim 1 , Hyoung-Seock Seo 1,* and Ho-Yun Jang 2 1 School of Naval Architecture & Ocean Engineering, University of Ulsan, Ulsan 44610, Korea; [email protected] 2 Green Ship Research Division, Research Institute of Medium & Small Shipbuilding, Busan 46757, Korea; [email protected] * Correspondence: [email protected] Abstract: With the gradual application of composite materials to ships and offshore structures, the structural strength of composites that can replace steel should be explored. In this study, the mechanical bearing strength and failure modes of a composite-to-metal joining structure connected by mechanically fastened joints were experimentally analyzed. The effects of the fiber tensile strength and stress concentration on the static bearing strength and failure modes of the composite structures ◦ ◦ ◦ ◦ were investigated. For the experiment, quasi-isotropic [45 /0 /–45 /90 ]2S carbon fiber-reinforced plastic (CFRP) and glass fiber-reinforced plastic (GFRP) specimens were prepared with hole diameters of 5, 6, 8, and 10 mm. The experimental results showed that the average static bearing strength of the CFRP specimen was 30% or higher than that of the GFRP specimen. In terms of the failure mode of the mechanically fastened joint, a cleavage failure mode was observed in the GFRP specimen for hole diameters of 5 mm and 6 mm, whereas a net-tension failure mode was observed for hole diameters of 8 mm and 10 mm. Bearing failure occurred in the CFRP specimens. -
Finite Element Model Calibration of an Instrumented Thirteen-Story Steel Moment Frame Building in South San Fernando Valley, California
Finite Element Model Calibration of An Instrumented Thirteen-story Steel Moment Frame Building in South San Fernando Valley, California By Erol Kalkan Disclamer The finite element model incuding its executable file are provided by the copyright holder "as is" and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the copyright owner be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage. Acknowledgments Ground motions were recorded at a station owned and maintained by the California Geological Survey (CGS). Data can be downloaded from CESMD Virtual Data Center at: http://www.strongmotioncenter.org/cgi-bin/CESMD/StaEvent.pl?stacode=CE24567. Contents Introduction ..................................................................................................................................................... 1 OpenSEES Model ........................................................................................................................................... 3 Calibration of OpenSEES Model to Observed Response