Velocity Ratio - Revision history

DT Online: Added Template

2016-09-03T20:11:22Z

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	[[File:MechanismsVelocityRatio.jpg\|300px\|right]]		[[File:MechanismsVelocityRatio.jpg\|300px\|right]]
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			=====Description=====

	Sometimes, mechanisms are used to translate a small amount of movement into a larger amount ''(or vice versa)''.		Sometimes, mechanisms are used to translate a small amount of movement into a larger amount ''(or vice versa)''.
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	This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.		This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.

	In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its '''[[Mechanical Advantage]]''' - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''[[Mechanical Efficiency\|Efficiency]]''' ''(or inefficiency!)'' of a mechanical system can therefore be calculated by dividing its '''[[Mechanical Advantage]] (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''
			=====Features and Applications=====

			In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its '''[[Mechanical Advantage]]''' - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’.


			The '''[[Mechanical Efficiency\|Efficiency]]''' ''(or inefficiency!)'' of a mechanical system can therefore be calculated by dividing its '''[[Mechanical Advantage]] (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''


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	~~[[Category~~:Mechanisms]]		{{Template:Secondary Mechanisms}}

DT Online at 14:21, 9 February 2015

2015-02-09T14:21:55Z

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	This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.		This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.

	In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its Mechanical Advantage - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''~~Efficency~~''' ''(or inefficiency!)'' of a mechanical system can therefore be calculated by dividing its '''Mechanical Advantage (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''		In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its '''[[Mechanical Advantage]]''' - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''[[Mechanical Efficiency\|Efficiency]]''' ''(or inefficiency!)'' of a mechanical system can therefore be calculated by dividing its '''[[Mechanical Advantage]] (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''


	[[Category:Mechanisms]]		[[Category:Mechanisms]]

DT Online at 18:31, 7 February 2015

2015-02-07T18:31:18Z

← Older revision		Revision as of 18:31, 7 February 2015
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	This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.		This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.

	In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its Mechanical Advantage - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''Efficency''' (or inefficiency!) of a mechanical system can therefore be calculated by dividing its '''Mechanical Advantage (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''		In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its Mechanical Advantage - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''Efficency''' ''(or inefficiency!)'' of a mechanical system can therefore be calculated by dividing its '''Mechanical Advantage (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''


	[[Category:~~Levers~~]]		[[Category:Mechanisms]]

DT Online: Added Efficiency comment

2015-02-07T18:27:25Z

Added Efficiency comment

← Older revision		Revision as of 18:27, 7 February 2015
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	This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.		This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.

			In an ideal world, the Velocity Ratio of a mechanical system would be numerically equivalent to its Mechanical Advantage - i.e. we ‘pay’ for being able to raise a large load by applying effort over a large distance. Machines are not 100% efficient however, there are losses due to wear and tear, friction, heat and noise for example, and so we do not ‘get out’ quite as much as we ‘put in’. The '''Efficency''' (or inefficiency!) of a mechanical system can therefore be calculated by dividing its '''Mechanical Advantage (MA)''' by its '''Velocity Ratio (VR)''' and then multiplying by 100 to get a percentage - i.e. '''Efficiency = MA/VR x 100%'''


	[[Category:Levers]]		[[Category:Levers]]

DT Online: Created Velocity Ratio

2015-02-07T18:11:13Z

Created Velocity Ratio

New page

[[File:MechanismsVelocityRatio.jpg|300px|right]]

Sometimes, mechanisms are used to translate a small amount of movement into a larger amount ''(or vice versa)''.

For example, in a high gear on a bicycle, one revolution of the pedal crank causes several revolutions of the bicycle wheel. Conversely, a car jack requires a lot of movement of the handle to lift the car just a short distance.

This property is known as the [https://en.wikipedia.org/wiki/Gear_ratio '''Velocity Ratio (VR)'''], and is calculated by dividing the distance moved by the '''effort''' by the distance moved by the '''load'''.

[[Category:Levers]]