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Topic: Mechanical advantage

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Actual mechanical advantage

Ideal machine

Ideal mechanical advantage

Pulley

Effort force

Simple machine

Block and tackle

Wheel and axle

Linkage (mechanical)

Machine

Mechanical work

Lever

Bell crank

Force

Transmission (mechanics)

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	Mechanical advantage - Wikipedia, the free encyclopedia
		In physics and engineering, mechanical advantage (MA) is the factor by which a mechanism multiplies the force put into it.
		In this way, it differs from the ideal mechanical advantage, which is a sort of 'theoretical limit' to the efficiency.
		In the equations the friction on the block on the left (illustrated by normal vector force "N") is ignored, as is friction in the hinges.
	en.wikipedia.org /wiki/Mechanical_advantage (1113 words)

	Cantilever Geometry
		In the case of bicycle brakes, the mechanical advantage of the system represents the ratio between the amount of force that presses the brake shoes against the rim and the amount of force that the rider's fingers have to apply to the brake levers to create this braking force.
		Traditional cantilever brakes, however, allow the mechanic to adjust the mechanical advantage to a considerable extent, mainly by adjusting the length of the transverse cable and the height of the cable yoke.
		The lever's mechanical advantage is determined by the distance from the lever's pivot to the cable end, and by the effective length of the brake lever from its pivot to where the rider's fingers grip it.
	www.sheldonbrown.com /cantilever-geometry.html (2754 words)

	Calculating Mechanical Advantage for Mission Possible
		Mechanical advantage is used in simple machines to reduce the force required to move a load.
		If we use no mechanical advantage the force is not reduced (m=1), so we call this a mechanical advantage of one.
		(This is important to note that "no mechanical advantage" is not where m=0, it's where m=1.) If we double the distance thereby reducing the force by half (m=2), we call this a mechanical advantage of two.
	www.ee.nmt.edu /~tubesing/missionpossible/advantage.htm (689 words)

	Mechanical - Wikipedia, the free encyclopedia
		Mechanical engineering, a branch of engineering concerned with the application of physical mechanics
		Mechanical license, used in the music industry to indicate the payment made from a licensee to the owner of a copyright for the right to mechanically reproduce a song
		Mechanical is often used as a general term to distinguish from another class of item.
	en.wikipedia.org /wiki/Mechanical (225 words)

	Mechanical advantage (Site not responding. Last check: 2007-10-23)
		In physics and engineering mechanical advantage (MA) is the factor by which a multiplies the force put into it.
		Wheel and axle : A wheel is essentially a lever one arm the distance between the axle the outer point of the wheel and other the radius of the axle.
		This is why simple wheels with wooden axles running in blocks will still turn freely because the friction is overwhelmed by the rotational force the wheel multiplied by the mechanical advantage.
	www.freeglossary.com /Mechanical_advantage (537 words)

	JR Radios - Increase Mechanical Advantage
		Mechanical Advantage is a very important concept when setting-up linkages - especially with larger aircraft.
		Since the control surfaces are rather large it is important for the servo to have enough mechanical advantage or leverage to control them, regardless of the servo's rated torque.
		The second way to increase the mechanical advantage for the servo is to attach the linkage at the servo arm as far inward (towards the servo arm retaining screw) as possible while still providing enough throw.
	www.jrradios.com /Articles/Article.aspx?ArticleID=1192 (540 words)

	Mechanical Advantage - Search Results - MSN Encarta
		Mechanical Advantage, in mechanics, the ratio of the force exerted by the machine (the Load) to the force applied to it (the Effort), that is,...
		Pulley, mechanical pulling or lifting device, consisting of a wheel (also known as a sheave) mounted on an axis with a rope (also known as a tackle)...
		The value of a simple machine is that it enables a person to exert a force greater than could be exerted by using muscles alone (as with a lever, a...
	uk.encarta.msn.com /Mechanical_Advantage.html (123 words)

	Mechanical Advantage - Canyon Forums/Gallery
		Using a dynamometer, the real mechanical advantage was found to be approximately 1.6 to 1 rather than the theoretical 5 to 1.
		I hadn't given much thought to how much mechanical advantage is lost to friction using this system, but 1.6:1 is still sufficient to accomplish the task and the benefits justify the reduction.
		The way you were pulling eliminated the locking mechanism and the friction between the two strands, so it was easier to tension all of the strands, but it wouldn't lock until you pulled the other direction and returned to the 5:1.
	www.canyoneering.net /forums/showthread.php?t=642 (1441 words)

	Simple Machines -- Mechanical Advantage
		engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it.
		friction is overwhelmed by the rotational force of the wheel multiplied by the mechanical advantage.
		The ideal mechanical advantage is the mechanical advantage of an
	www.edinformatics.com /math_science/simple_machines/mechanical_advantage.htm (878 words)

	Pulleys and Mechanical Advantage
		I predict that in my tests I will find that the actual mechanical advantage of the pulleys will not be the same as the calculated mechanical advantage because of the friction on the pulleys.
		Mechanical advantage is the sacrificing of distance for effort.
		The friction affected the mechanical advantage because as my graph states the control group has the very worst mechanical advantage because the friction wasn't reduced in any way and it was most affected by friction.
	www.qacps.k12.md.us /cms/sci/PROJALE1.HTM (1503 words)

	Mechanical Advantage of Pulleys
		The purpose of this lab is to measure the advantage and efficiency of different pulley arrangements.
		For the system with a Theoretical Mechanical Advantage (TMA) of 3, the AMA was found to be 2.96.
		The factor by which the input force is multiplied by is the Mechanical Advantage.
	stw.ryerson.ca /~rsingh/mechanical_advantage_of_pulleys.htm (650 words)

	Mechanical Advantage (Site not responding. Last check: 2007-10-23)
		Mechanical Advantage is the ‘advantage’ or usefulness that a tool can provide to a user.
		There is Mechanical Advantage which includes friction in its calculation and Ideal Mechanical Advantage which does not include friction.
		This is good because the sword allows the soldier to get a faster velocity than a punch, the only downside is that the soldier must hold this sword (the mass).
	www.mrfizzix.com /martialarts/ma.htm (237 words)

	Mechanical Advantage and servo setups
		This should give you increased mechanical advantage as throw is increased and less at center, which is what you want...
		So the difference in mechanical advantage presented by maybe 10 degrees offset from perpendicular (aileron horn to servo arm) is not a heck of a lot, but what little there is favors the offset geometry at neutral as opposed to the perpendicular geometry.
		I realize that you need to get as close as possible with the mechanical setup and then adjust sub-trims to get the last little bit that you can't get with the mechanical setup but, there is a centering adjustment available on the servo itself, located in the screw hole for the servo arm.
	www.rcuniverse.com /forum/fb.asp?m=3694921 (5394 words)

	mechanical advantage - HighBeam Encyclopedia (Site not responding. Last check: 2007-10-23)
		Mechanical Advantage, Inc. Joins PTC's Channel Partner Program.
		Mechanical Advantage, Inc. Launches First PTC(R) Certified Training Center in Colorado Springs Co.
		Harbour delights; From mechanical cats and mice to Cognac and goat's cheese, the French town of La Rochelle has something for every taste.
	www.encyclopedia.com /doc/1E1-x-mechanic-a.html (218 words)

	Mechanical Advantage
		The dawn of the mechanically assisted rock climbs of the eastern Alps was not without competition.
		His invention of the Abalakov Cam was the first application to climbing of the principle of a constant-angle curved surface, with a cam shape based on the mathematical logarithmic spiral.
		Is there an artificial line to maintain, or is the use of all tools valid, as is epitomized by Lynn Hill's first free ascent of the Nose in 1993 and her subsequent first one day all free ascent, proving conclusively that the Nose could be potentially climbed without any equipment at all.
	www.bigwalls.net /climb/mechadv/index.html (8492 words)

	Mechanical Advantage - Tolerancing and Critical Parameter Analysis for MCAE (Site not responding. Last check: 2007-10-23)
		Mechanical Advantage is a mechanical design decision support system for mechanical engineers.
		Unlike traditional CAD systems which only allow you to model the form and fit of your design, Mechanical Advantage allows you to also model the function and performance of your design.
		Mechanical Advantage is used primarily by engineers during the initial design stage to provide:
	www.cognition.us /products/ma_proddesc.htm (314 words)

	Mechanical Advantage Of: Insights on Advantage (Site not responding. Last check: 2007-10-23)
		In physics physics the ideal mechanical advantage abbreviated IMA is the...
		Ideal mechanical advantage In physics physics, the "ideal mechanical advantage" (abbreviated "IMA") is the mechanical advantage mechanical advantage of an ideal machine ideal machine.
		Mechanical advantage In physics and engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it.
	mechanicaladvantage.fiatadvantage.com /mechanicaladvantageof (746 words)

	Mechanical Advantage of Pulleys (Site not responding. Last check: 2007-10-23)
		A system of pulleys is used to lift heavy loads by the mechanical advantage of increasing the length of travel of the pull and decreasing the load.
		The mechanical advantage of a system of pulleys is equal to the number of ropes that support the moveable pulley, less any friction on the pulley.
		Setup the pulleys to obtain a mechanical advantage of 1, 2, 4, and 6.
	info.lu.farmingdale.edu /~betzja/crane/pulley.html (214 words)

	The Chief Technologist's Mechanical Advantage
		He took a course in biomechanics—the study of how bones and muscles move, which one might call the pinnacle of mechanical engineering—from Donald Bartel, “who I still maintain an infrequent correspondence with.” Bartel was doing pioneering work with artificial hip joints, the first full hip-replacement surgery having been done a few years earlier.
		For example, the ignition system has to fire the spark plugs at the correct rate for the engine’s speed, which is determined by how hard you tromp on the gas pedal and regulated by a feedback loop that includes a vacuum sensor linked to the intake manifold.
		He’s disentangled himself from most of his faculty commitments—executive officer for mechanical engineering, director of the Engineering Computing Facility, and memberships on the engineering and applied science division steering committee, the division advisory group, and the Caltech/MIT Voting Technology Project.
	pr.caltech.edu /periodicals/EandS/articles/LXVI/antonsson.html (4332 words)

	mechanical advantage
		machine: Mechanical Advantage and Efficiency of Machines - Mechanical Advantage and Efficiency of Machines By means of a machine, a small force, or effort,...
		Mechanical ventilation beyond the intensive care unit: report of a consensus conference of the American College of Chest Physicians....
		Mechanical modelization of anisotropic porous materials with a homogenization method.
	www.infoplease.com /ce6/sci/A0916097.html (198 words)

	Tool - Wikipedia, the free encyclopedia
		A tool' or device is a piece of equipment that (most commonly) provides a mechanical advantage in accomplishing a physical task.
		Mechanical devices, though known to Alexandrian Greeks, experienced a major expansion in their use in the Middle Ages with the systematic employment of new energy sources: water (waterwheels) and wind (windmills).
		Machine tools occasioned a surge in producing new tools in the industrial revolution.
	en.wikipedia.org /wiki/Tool (585 words)

	Phoenix Mechanical - Phoenix Advantage
		Phoenix Mechanical is regionally recognized as a full-service company capable of handling all aspects of mechanical services from design through installation and maintenance.
		Its team of professionals specializes in mechanical construction, facilities maintenance, energy management and life safety services.
		Phoenix Mechanical guarantees a response you can count on 24 hours a day, 7 days a week, 365 days a year.
	www.teamphoenix.com /advantage.html (274 words)

	Definition of mechanical - Merriam-Webster Online Dictionary
		1 a (1) : of or relating to machinery or tools applications of science> mechanical genius> aptitude> (2) : produced or operated by a machine or tool power> mechanical refrigerator> mechanical saw> b : of or relating to manual operations
		mechanical> b : of or relating to technicalities or petty matters
		4 a : relating to, governed by, or in accordance with the principles of mechanics work> energy> b : relating to the quantitative relations of force and matter pressure of wind on a tower>
	www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=mechanical (200 words)

	Muscle mechanical advantage of human walking and running: implications for energy cost -- Biewener et al. 97 (6): 2266 ...
		Limb muscle mechanical advantage (EMA) is defined as the ratio (r/R) of the weighted mean agonist muscle moment arm (r) to the moment arm (R) of the ground reaction force (GRF).
		in limb mechanical advantage have not been observed (1, 31).
		Mechanical and morphological properties of different muscle-tendon units in the lower extremity and running mechanics: effect of aging and physical activity
	jap.physiology.org /cgi/content/full/97/6/2266 (6360 words)

	Closed-chain motion with large mechanical advantage
		This paper presents a way to achieve large effective forces from weak actuators by exploiting large mechanical advantage that results from systems near singularities.
		While large mechanical advantages have been applied near singularities in many instances, this method allows the application of this large force over a large distance.
		It is applied specifically to closed chain mechanisms and demonstrated on the PolyBot modular self-reconfigurable robot.
	www.parc.xerox.com /research/publications/details.php?id=4304 (156 words)

	Advantage Mechanical~Refrigeration: Home Page
		Advantage Mechanical-Refrigeration, Inc. is a mechanical contracting firm that provides a full scope of mechanical services to customers across Michigan.
		Advantage has a loyal customer base consisting of grocery stores, major greenhouse/produce warehouse suppliers, government buildings, wastewater treatment facilities, a power plant, factories, schools, retirement home communities and many commercial retailers.
		Advantage sells, installs, maintains and services heating, ventilating, air conditioning, refrigeration and plumbing systems of all types, including:
	advantagemech-ref.com (87 words)

	Flutter problems and Mechanical linkage Setup Lesson Learned
		I 'thought' that I had plenty of mechanical advantage, but I KNOW I didn't have as much as I could have.
		I could gain some serious mechanical advantage by having the throws in my second rate be the mechanical max.
		Instead of setting up the plane with max surface travel initially, it seems like the smart thing to do is setup for moderate travel and slowly increase the travel until you have enough travel for your desired mode of flight.
	www.rcuniverse.com /forum/m_2044457/anchors_2044457/mpage_1/key_Mechanical,advantage/anchor/tm.htm (2817 words)

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