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#### sec08_05-10

Course: ENGR 201, Fall 2009

School: Wisconsin

Word Count: 437

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Applications: 8.5,8.10 Wedges and Belt Friction A wedge is a device that is often used to create a "mechanical advantage". Example: F A small force F can potentially produce a large vertical force to help lift the object above it. A screw is in fact a wedge! Example 1: A machine block B is adjusted by moving the wedge A. Knowing that the coefficient of static friction between all surfaces is 0.35,...

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Applications: 8.5,8.10 Wedges and Belt Friction A wedge is a device that is often used to create a "mechanical advantage". Example: F A small force F can potentially produce a large vertical force to help lift the object above it. A screw is in fact a wedge! Example 1: A machine block B is adjusted by moving the wedge A. Knowing that the coefficient of static friction between all surfaces is 0.35, determine the force F required (a) to raise block B, and (b) to lower block B. 400 lb 8 B A A: a) F = 423 lb b) F = - 206 lb F Belt friction on cylindrical surface T2 T1 If T2 >T1, then the belt will slide in the direction of T2. Note that even though the belt is continuous, the tensions T2 and T1 are not equal. 2 T+ T y 2 T x N F = N Fx = 0 = -(T+ T) cos( /2) + T cos( /2) + N Fy = 0 = -(T+ T) sin( /2) - T sin( /2) + N Note that sin( ) and cos( ) 1 for small (measured in radians), divide by , take limit as dT 0 , and combine equations= 0 - T for: d dT - T = 0 d multiply by d / T and integrate both sides for T2 1 1 T dT = d T 0 T2 > T1 ln T2 - ln T1 = T2 T2 ln = or =e T1 T1 = coefficient of static or kinetic friction. = angular measure (in radians) of contact 2: surface. Example A "hawser" is wrapped around a fixed "capstan" to secure a ship for docking. If the tension in the rope caused by the ship is 1500 lbs, determine the smallest number of complete turns the rope must be wrapped around the capstan in order to prevent slipping of the rope. A longshoreman should not have to exert more than 50 lbs on the rope. The coefficient of static friction is s = 0.3. Example 3: Determine the maximum and minimum values of weight W which may be applied without causing the 50 lb block to slip. The coefficient of static friction between the block and plane is s = 0.2 and between the rope and the drum D is D = 0.3. Example 4: The speed of a brake drum is controlled by a belt att...

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Wisconsin - ENGR - 201
5.8-5.9 Distributed loads &amp; Fluid PressuresA distributed load is a load that acts throughout a volume, over an area, or along a line.Nomenclature:body force: Load distributed over a volume. A body force has units of (force/volume). traction: Loa
Wisconsin - ENGR - 201
6.9 - 6.12 Frames and MachinesA frame is like a truss except that the connections are moment-resisting. Thus, the members in a frame are not two-force members.frictionless pintrussthis angle remains constantframeA machine is an assembly of
Wisconsin - ENGR - 201
9.6-9.7 Parallel axis theorem; Composite AreasRelations between moments of inertia referred to parallel axesy2 Ix = I x + Ad y 2 Iy = I y + Ad x 2 Jo = Jc + Adox ydxCdAy xddyxIx'Iy' Jc = moments about centroidal axesproof
Wisconsin - ENGR - 201
3.11 Moment about a lineFrequently, we want the moment of a force about a line or a specific axis. In scalar analysis, resolve the force into components parallel and perpendicular to the axis about which moment is desired. Then compute and sum the
Wisconsin - ENGR - 214
EMA214 - Homework Assignment #5 Due: Thursday Dec. 12 at the beginning of class. Instructions: Provide a complete response to each question. Use whatever method you prefer to solve the problem, but be sure to include clear diagrams as necessary, and
Wisconsin - ENGR - 405
EMA405: HW#1 Solutions ANSYS Acclimation Due: Tuesday, February 1st, 2005 For this first assignment, we'll generate different models of cantilevered, tapered beams. For Problems 1, 2 and 3, the taper will be in the direction of the span b. Assume the
Wisconsin - ENGR - 405
EMA 405: Design Project Due: Monday, December 18th, 2006 The purpose of this assignment is to use ANSYS in a decision-making capacity. Instead of simply analyzing something, you will have in mind certain design goals, use ANSYS to analyze a particula
Wisconsin - ENGR - 202
Equations you may find useful: Particle Rectilinear Motion: a= dv dt v= ds dtads = vdvFor the special case of constant acceleration (ac), and assuming initial conditions are specified at t=0: 1 2 v (t ) = v o + a c t s (t ) = so + vot + ac t 2 v 2
Wisconsin - ENGR - 202
General Design Guidelines: The following list of general design guidelines can be used and modified for the current project.1 Define the project. What is needed, for whom, and why? What deadlines must be met? Consider the consequences of the failed
Penn State - FUA - 107
Ramadan in AmericaBy : Fatemah Alhusayni Instructor: KWANGHYUN PARK ESL 015, Academic Writing 02 Fall 2005Introduction: Ramadan is the ninth month of the Muslim lunar calendar. It's determined by seeing the crescent of the moon at last day of th
Wisconsin - ME - 361
China Summer Program 2008 Student EvaluationThis evaluation is very important to help us learn from your experience in order to improve the program for the future. Please answer the following questions about the program and be as specific as possibl
Wisconsin - ME - 361
Links to Atmospheric Thermodynamics 1. http:/www.science.gmu.edu/~zli/ghe.html 2. http:/www.ucar.edu/learn/1_3_1.htm 3. http:/www.ausetute.com.au/photsmog.html 4. http:/www.aecc.be/en/current_technology.htm
Wisconsin - ME - 361
Links to Steam Turbines 1. http:/www.energy.qld.gov.au/infosite/eg_using_steam_turbines.html 2. http:/www.massengineers.com/Documents/QASteamturbines.htm
Wisconsin - ME - 361
Perpetual Motion Machines 1) http:/www.lhup.edu/~dsimanek/museum/people/people.htm 2) http:/www.lhup.edu/~dsimanek/museum/machines/machines.htm
Wisconsin - ME - 361
Links to Fuels 1. http:/www.eere.energy.gov/afdc/progs/fuel_compare.cgi 2. http:/www.braeunig.us/space/propel.htm 3. http:/auto.howstuffworks.com/question642.htm
Wisconsin - ME - 361
Links to pumps: 1. http:/www.animatedsoftware.com/pumpglos/pumpglos.htm 2. http:/www.kraftunitops.com/pump_positive_displacement.html
Wisconsin - ME - 361
Carnot Engines 1)http:/www.mhhe.com/physsci/physical/jones/graphics/jones2001phys_s/ch13/others/1 3-3/ 2) http:/hyperphysics.phy-astr.gsu.edu/hbase/thermo/carnot.html
Wisconsin - ME - 361
Gas turbine nozzles: http:/www.grc.nasa.gov/WWW/K-12/airplane/nozzle.html
Wisconsin - ME - 361
1. http:/www.dspringair.com/HumidComp.htm 2.
Penn State - SLP - 143
When people hear the word graffiti some feel it is a form of modern art, but most believe it to be a nuisance and an eye soar. Graffiti has existed since ancient times, with examples going back to Ancient Greece and the Roman Empire. Graffiti of
Wisconsin - ME - 349
2006 EPICS Green Build TeamAlissa Miller Stormwater Mgt. Kevin Bell Insulation &amp; Windows Jonathan Blanchard Vinyl &amp; Fans Sara Michalski Landscape John Ells Water HeatingStormwater Management Techniques1. 2. 3. 4. Rain barrels Rain gardens In
Penn State - LCP - 5006
Laney Pastoria September 23, 2008 MIS 204 Chapter 4 1. Control Unit: fetches program instructions and data from memory and decodes the instructions into commands the computer can execute. Arithmetic Log Unit: performs arithmetic, comparison, and o
Wisconsin - ME - 349
Agenda 2-11-05 10:00a Discuss info gathered about homeowner's FAQ's. 10:15a Review Existing Tutorials 10:40a Discuss action Items for next meeting.
Wisconsin - ME - 349
Agenda 2-18-05 10:00a Meet in Computer Lab (1st floor ME) to work on tutorials.
Wisconsin - ME - 349
Team Stair TamerPresentation for Project ReviewCaryn Christianson Scott Holewinski Pathikrit Banerjee3/05/03Problem Statement DesignRequirements Transfer a disabled person Out of a wheelchair Up aircraft stairs Into cabin seat Complet
Wisconsin - ME - 364
ME 364: Elementary Heat Transfer Summer 2006 Examination 2 Time: 75 Minutes Total Points: 25 Open Notes and Homework Only 1. (5 points) Consider the following grooves (semicircular, rectangular, and V, in the order shown in the sketch below) each of
Wisconsin - ME - 364
ME 364: Exam 4 (25 pts) Radiation This test is due at the start of class on Monday, August 5. Please work alone and do not check your answers with other students.Growers use fans to prevent grapes from freezing when the effective sky temperature
Wisconsin - ME - 364
Guidelines For Exam Preparation Please take time to prepare your exams nicely. The grading will consider neatness, organization, and grammar. Write them up so that a person could understand the problem you are solving without having read the test que
Wisconsin - ME - 363
Mechanical Engineering Department The University of Wisconsin Madison ME363 Fluid Mechanics Fall 2006 Professor: Jay K. Martin 3126 Engineering Centers Building 1550 Engineering Drive Office Phone: 263-9460 Home Phone: 233-2818 Mobile: 213-2542 Offi
Wisconsin - ME - 363
SelfTest Exam 3 Question #10000 At high Re in pipe flows, the friction factor, f: 1. Increases with Re 2. Decreases with Re 3. Is not a function of Re 4. Decreases and then increases with ReSelfTest Exam 3 Question #10001 Given that the friction fa
Wisconsin - ME - 363
Direction to the Air National Guard Base: 1) 2) 3) 4) We are starting at 1513 University Ave. We are going to 3110 Mitchell St. Use Mapquest or other to get directions We will leave here (meet on the south side of ME in cars, ready to go) at 9:45 AM
Wisconsin - ME - 363
Glenn R. BowerDate Sept. 3 Sept. 5 Sept. 8 Sept. 10 Sept. 12 Sept.15 Sept. 17 Sept. 19 Sept. 22 Sept. 24 Sept. 26 Sept. 29 Sept. 30 Oct. 1 Oct. 3 Oct. 6 Oct. 8 Oct. 10 Oct. 13 Oct. 14 Oct. 15 Oct. 17 Oct. 20 Oct. 22 Oct. 24 Oct. 27 Oct. 29 Oct. 31 N
Wisconsin - ME - 363
Text: Fluid Mechanics by White, 5th Edition Lectures on . Homework (Due) Sep 3 Introduction Chap 1; App. E -Sep 8 Forces on fluids 63-74 Sheet #1 Sep 10 Hydrostatics; manometry and forces 74-86 P2: 6(b), 11, 13, 19, 39 Sep 13 Buoyancy and stability;
Wisconsin - ME - 363
Problem 6.108 Given: 70 % efficienct pump; dz=20 ft; t=20C; 60 ft galvanized pipe, 2 in dia; reentrant entrance 2 screwed 90o elbows, open gate valve, sharp exit. Case 1-as is; case 2 with 6o diffuser. Q=0.4 ft3/s Find: horsepower required q = 0.4 d
Wisconsin - ME - 363
Chapter 3, Sections 1-4 Sections 3.1 through 3.4 focus on the laws of mechanics of fluids for a system, defined as an arbitrary quantity of mass of fixed identity. The two basic laws discussed are Conservation of Mass and Conservation of Linear Momen
Wisconsin - ME - 363
Chap 6 Summary Viscous Flow in Ducts The first topic in chapter six is Reynolds number. It determines if flow is turbulent or laminar. At a value of less than 2300 the flow is laminar; above 2300 is turbulent. Vd Vd Re d = = The distance into a pi
Wisconsin - ME - 471
ME471 Gas Turbines Spring 2001 Instructor: Jay K. Martin 125 ERB 1500 Engineering Drive Office Phone: 2639460 Office Hours: MW After Class Home Phone: 2332818 email: martin@engr.wisc.eduCourse Homepage: http: / / co urses.engr.wisc.edu /ecow
Wisconsin - ME - 601
1. Triggering If you can trigger on something, do Better to trigger on something besides the signal (in class we will demonstrate some issues with triggering when noise is present) Pay attention to trigger level, rising vs. falling edge, etc. 2. Set
Wisconsin - ME - 601
Sourcing too little current, Or: How Scott's scopes mess up my labSean Younger ME601 10/28/05What do we see? @ 1 MOhm 5V signalV 5V -6 V = IR I = = 6 = 5 x10 A = 5A R 10 @ 50 Ohm 120 mV signal120 10 V I= = 2.4mA = I max 50 The device is
Wisconsin - ME - 601
ME601 Professor:Mechanical Engineering Department The University of Wisconsin Madison Signal Conditioning, Acquistion, and ProcessingFall 2005Scott T. Sanders 109 Engineering Research Building Office Phone: 262-3540 Office Hours - Formal: MWF
Wisconsin - ME - 601
ME601 Signal conditioning acquisition, and processing, Fall 2005 Take-home exam #1, due 10/7/05, 9:00 AM by email to ssanders@engr.wisc.edu Attach: one LabVIEW .vi, named according to the E1IDxx.vi convention, and with the Qs below and their answers
Wisconsin - ME - 601
ME601 Signal conditioning acquisition, and processing, Fall 2005 Assignment #1, due 9/7/05, 9:00 AM by email to ssanders@engr.wisc.edu Hand in: screenshot of LabVIEW block diagram, screenshot of LabVIEW front panel, your own data file that LabVIEW sh
Wisconsin - ME - 368
Friday April 6, 2001 ME 368 Lecture 1. Demo of image processing as a measurement/diagnostic toola. Introduction to an image processing system 1. Camera 2. `Frame Grabber' a. A/D converter to convert analog intensity signals into digital levels (in t
Wisconsin - ME - 577
Partner 1 Partner 2 Partner 3ME/ECE 577 Project 6 Spring 2008 State Observers in State Feedback Motion ControllersPage 1Part I. Introduction and Pre lab (INITIALS HERE) A. Objectives (INITIALS HERE) Write a meaningful objective here. What were
Wisconsin - ME - 773
ME 773 Fall 2004 Homework #3 Due Friday, October 1, 2004 1. Solve the Falkner-Skan equation for a stagnation point flow ( = 1) , for a Blasius flow and for an adverse pressure gradient flow ( = -0.1) . For each of these, plot f, f', and f&quot; vs. . 2
Wisconsin - ME - 299
Wisconsin - ME - 299
Wisconsin - ME - 440
ME 440 Intermediate Vibrations Sections 2.12.2, 2.62.8Tu, Feb. 3, 2009 Dan Negrut, 2009 ME440, UWMadisonBefore we get started.Last Time: Frequency Spectrum Complex form of the Fourier Series Expansion Went through three examplesLast
Wisconsin - ME - 440
ME 440 Intermediate Vibrations Tu, January 27, 2009Sections 1.10 &amp; 1.11 Dan Negrut, 2009 ME440, UWMadisonBefore we get started.Last Time: Discussed two examples of how to determine equivalent spring Discussed the concept of linear sys
Wisconsin - ME - 440
ME 440 Intermediate Vibrations Tu, Feb. 17, 2009Section 2.5 Dan Negrut, 2009 ME440, UWMadisonBefore we get started.Last Time: Motion of pendulum (inversted pendulum, its stability) Torsional vibration Examples HW Assigned: 2.73, 2.82 (du
Wisconsin - ME - 440
ME 440 Intermediate Vibrations Th, Feb. 10, 2009Sections 2.6, 2.7 Dan Negrut, 2009 ME440, UWMadisonBefore we get started.Last Time: How to solve EOMs once you obtain themIVP vs. ODE An IVP has one solution An ODE has infinite number o
Wisconsin - ME - 440
ME 440 Intermediate Vibrations Th, January 29, 2009Section 1.11 Dan Negrut, 2009 ME440, UWMadisonBefore we get started.Last Time: Discussed about periodic functions Covered the Fourier Series Expansion Went through one example Covering m
TAMU Kingsville - PHYSICS - 1402
Law of Reflection Incident angle is equal to the reflected angle Incident ray, normal, and reflected ray form a plane of incidenceLaw of Refraction Also called Snell's Law n1 sin 1 = n2 sin 2 n is called the index of refraction Depends on
Wisconsin - ENGR - 448
Part1+(a )(e ) s e e n e x t page+ ( i)-,+1 /4+,+++ ( j)(b )(f),1 /2 --1 /4+++(k )+ + - , + - ,(c ),(g )+,1 /41 /2 -- ,( l)+,-+,1 /2 -+ +(d )(h ),1 /2 -+- ,c + (
Wisconsin - ENGR - 448
Homework No. 3, problem 3 (Cullity 4-5)tetragonal crystal: (only P or I possible) 0, 0, 0, 0 0 + 0 + bodycenteredF = feFbct = 1 + e2 i ( hun + kvn + lwn )l l l 2 i 0 2 i h + k + 2 2 i k + 4 2 i h + 4 2 2 2 2 = f e + e +e
Wisconsin - ENGR - 448
MS&amp;E 448 - Crystallography and X-Ray Diffraction Midterm Examination - Wednesday, 10/25/95 Instructions: You will have 50 minutes to complete this exam. Please do all your work in the blue book that is supplied. Be sure to show all your work, since p
Wisconsin - ENGR - 448
Crystallography and X-ray Diffraction - MS&amp;E 448 Homework No. 6 (due Wednesday, 12/6/00) 1. Many intermetallic compounds crystallize in the NiAs structure. NiAs is hexagonal with a = 3.62 and c = 5.04 and has atoms at the following positions: Ni: A
Wisconsin - ENGR - 448
MS&amp;E 448 - Crystallography and X-Ray Diffraction Information on the Midterm Exam Wednesday, 11/1/2000 The midterm exam will last 50 minutes. It will be closed book, closed notes, and closed neighbors. A formula sheet will be provided (all formulae g
TAMU Kingsville - PHYSICS - 1402
ElectricityThe force between two charged particles was experimentally measured by Charles Coulomb in the 1700's. He used an apparatus that consisted of a torsion balance with two charged balls on each end suspended in a glass jar near another charge
Wisconsin - ENGR - 803
Lab3: Quantum Mechanics 11/18/04 Key issues: Timing/accuracy with Ecut, kpoints, size, Si DOS, band structure, and charge density, Ni magnetism Set up Si conventional cell add atom at 0, set space group to 227 Make cell primitive with Build/Sym
Wisconsin - ENGR - 371
The EARTH ModelEquity Advocacy Respect Trust HopeEquity Justice, fairness Need to collectively define Expectations and styles Power differentials / uncertain power structure Ground rulesAdvocacyPleading or arguing in favor of so