Classmate Evaluation
Amelia
Monday, March 30, 2009
8a: Quoting, Paraphrasing, and Summarizing
http://www.physlink.com/Education/askExperts/ae288.cfm
The reason that you stay up on a bike is that angular momentum, like regular momentum, must be conserved if no external torques act on the object. Because angular momentum is a vector, not only must its magnitude be conserved, but also its direction. This implies that any change in the orientation of the object will change the vector for angular momentum. Therefore, tops stay up because the angular momentum wants to stay conserved in the same direction.
Paragraph with Ellipsis
The reason that you stay up on a bike is that angular momentum, like regular momentum, must be conserved if no external torques act on the object. Because angular momentum is a vector, not only must its magnitude be conserved, but also its direction. This implies that any change in the orientation of the object will change the vector for angular momentum. Therefore, [the bike will] stay up because the angular momentum wants to stay conserved in the same direction.
Paraphrase
A bike wants to stay up at speed because of gyroscopic forces or also known as angular momentum. If a person would hold a bicycle wheel on a axle in their hands a had someone spin the wheel they would feel the forces acting on the spinning wheel. The person would notice that there where no forces felt until the wheel is turned left, right or leaned. What this person is feeling are the gyroscopic forces. The wheel wants to stay in the upright position and when the wheel is leaned or turned the person is feeling the wheel trying to return to its straight ahead position. The straight ahead position is where the three forces acting on the spinning wheel are equalized.
Summary
A bike stays up because of the laws of angular momentum. Angular momentum is a vector and because of this the object's magnitude and its direction must be conserved. This means that any change in the object's manitude or direction will change the angular momentum vector. The reason the tire stays up is because angular momentum vector wants to equalize.
The reason that you stay up on a bike is that angular momentum, like regular momentum, must be conserved if no external torques act on the object. Because angular momentum is a vector, not only must its magnitude be conserved, but also its direction. This implies that any change in the orientation of the object will change the vector for angular momentum. Therefore, tops stay up because the angular momentum wants to stay conserved in the same direction.
Paragraph with Ellipsis
The reason that you stay up on a bike is that angular momentum, like regular momentum, must be conserved if no external torques act on the object. Because angular momentum is a vector, not only must its magnitude be conserved, but also its direction. This implies that any change in the orientation of the object will change the vector for angular momentum. Therefore, [the bike will] stay up because the angular momentum wants to stay conserved in the same direction.
Paraphrase
A bike wants to stay up at speed because of gyroscopic forces or also known as angular momentum. If a person would hold a bicycle wheel on a axle in their hands a had someone spin the wheel they would feel the forces acting on the spinning wheel. The person would notice that there where no forces felt until the wheel is turned left, right or leaned. What this person is feeling are the gyroscopic forces. The wheel wants to stay in the upright position and when the wheel is leaned or turned the person is feeling the wheel trying to return to its straight ahead position. The straight ahead position is where the three forces acting on the spinning wheel are equalized.
Summary
A bike stays up because of the laws of angular momentum. Angular momentum is a vector and because of this the object's magnitude and its direction must be conserved. This means that any change in the object's manitude or direction will change the angular momentum vector. The reason the tire stays up is because angular momentum vector wants to equalize.
Monday, March 16, 2009
7b: Evaluating Sources
One website I found dealing with Gyroscopic Forces was on the webiste HowStuffWorks.com. The website is part of the Discovery Company which has an interest in the scientific community. The website has videos from university professors explaning the gyro forces.
The book that I found is writen by a engineer that rode motorcyles. He became interested in the forces that act upon a motorcycle during the ride. He explains the "why" with riding a motorcycle.
The book that I found is writen by a engineer that rode motorcyles. He became interested in the forces that act upon a motorcycle during the ride. He explains the "why" with riding a motorcycle.
7a: Conducting Internet Research
Using the search engine that I was assigned, Viewzi, I did a search of Gyro Forces+Motorcycles on 3/16/09. I was able to get articles explaining counter steer at speed. Using Viewzi I was not able to find out how many hits total I had. Using Viewzi I was able to go through the hits and hide the pages that I didn't want so I was able to see only the sites that I was interested in.
Monday, March 2, 2009
5c: Rewriting Search Strings
Using the advice from my new favorite amature Quantum Physicist, Ryan, I did some more searching but looking up the cream of the crop, top of the line race bikes in the world. I was not able to get any information on, lets say, motogp bikes but I did bring up other styles of suspension. For the most part all motorcyle suspension is the same, mostly because they all have the same forces acting upon them. There are a few companies that tried different designs to try to smooth out some of those forces.
5b: Finding More Reference Articles and Books
I purchased another book on Motorcycle dynamics, which I believe is a better representation on what I'm trying to write about. The book I was trying to get was on backorder, which is not the end of the world because I already own a few books on the subject. Feeling a little down about the, not finding any periodicals problem, I did some asking around and I found a Motorcycle Suspension Engineer. I told him my situation and he was more than happy to point me in the right direction, as in renaming the title of my paper.
5a: Finding Periodical Articles
I tired looking up periodicals on the libary websites and I could not find anything pertaining to my topic. What I did find that was interesting was a collection of Alternative Energy articles that I spent some time reading. I found articles talking about the evolving technolgy on fuel cells and solar panels. When I recive my pre-destined failing grade in this class I will probably pick an Alternative Engery topic to write about. As the wise Homer Simpsons says, "Facts are meaningless, they can be used to prove anything that's even remotely true."
Monday, February 23, 2009
4c: Checking Search Strings
http://researchjournal0027.blogspot.com/2009/02/phrases-1.html
Parallel Universes
Ryan's Blog has a problem with posting comments. So I wrote an Email to him about my comments. I wrote to him I would try searching for Quantum Physics, 4th dimension, Everett's Many-World Theroy, Mulitverse.
http://kellymhaddon.wordpress.com./
The health benefits of Yoga.
Parallel Universes
Ryan's Blog has a problem with posting comments. So I wrote an Email to him about my comments. I wrote to him I would try searching for Quantum Physics, 4th dimension, Everett's Many-World Theroy, Mulitverse.
http://kellymhaddon.wordpress.com./
The health benefits of Yoga.
4b: Finding Books
I was looking at the Aurora Public Library's website and I found a few books on Physics. The one that caught my eye was the "Encyclopedia of Physics" This book is laid out more like an encyclopedia than a textbook.
Title: Macmillan encyclopedia of physics / John S. Rigden, editor in chief.
Publication: New York : Simon & Schuster Macmillan, 1996.
Title: Macmillan encyclopedia of physics / John S. Rigden, editor in chief.
Publication: New York : Simon & Schuster Macmillan, 1996.
4a: Finding Reference Articles
I looked around the research websites and I could not find any articles that pertain to my topic. Mathmatica.com would be a good website for me but I have to buy a membership. These are the books I have been using to get the foundation of my research.
Title: Motorcycle Design and Technology, 2004 by Motorbooks
Author: Gaetano Cocco
Topics: Intertia Effects page 10, gyroscopic effects page 11, centrifugal force page 23
Title: University Physics, 2007 by Pearson Addison Wesley
Authors: Young and Freedman
Topics: Dynamics of Rotational Motion, page 316.
Title: Motorcycle Design and Technology, 2004 by Motorbooks
Author: Gaetano Cocco
Topics: Intertia Effects page 10, gyroscopic effects page 11, centrifugal force page 23
Title: University Physics, 2007 by Pearson Addison Wesley
Authors: Young and Freedman
Topics: Dynamics of Rotational Motion, page 316.
Monday, February 16, 2009
3c: Brainstorming Field Research Options
Ideas for field research:
1. Going to a motorcycle race shop that specializes in suspension
2. Talking to an Engineer that deals with motorcycle suspension
3. Going to a motorcycle swap meet to see other suspension designs
4. Removing and disassembling the front forks and rear shock
5. Going to a race track and changing my suspension setting and recording the effects.
1. Going to a motorcycle race shop that specializes in suspension
2. Talking to an Engineer that deals with motorcycle suspension
3. Going to a motorcycle swap meet to see other suspension designs
4. Removing and disassembling the front forks and rear shock
5. Going to a race track and changing my suspension setting and recording the effects.
3b: Writing Search Strings
Motorcycle Geometry Math
http://www.sportrider.com/tech/146_0310_art/index.html
Motorcycle Suspension Setups
http://www.whybike.com/motorcycle93.htm
Racing Motorcycle Suspension
http://www.gostar-racing.com/information/motorcycle_suspension_set-up.htm
http://www.sportrider.com/tech/146_0310_art/index.html
Motorcycle Suspension Setups
http://www.whybike.com/motorcycle93.htm
Racing Motorcycle Suspension
http://www.gostar-racing.com/information/motorcycle_suspension_set-up.htm
3a: Generating Keywords
How does the suspension on a motorcycle change its geometry?
Motorcycle Suspension
Settings
adjustments
tools
tuning
set up
Black Art
Racing
Geometry
Math
Trail
Rake
Frame
Chassis
Handling
Motorcycle Suspension
Settings
adjustments
tools
tuning
set up
Black Art
Racing
Geometry
Math
Trail
Rake
Frame
Chassis
Handling
Monday, February 9, 2009
2c: Developing My Research Question
How does a motorcycle stay up when riding?
Why do you have to counter steer once at speed?
How is the bike held up during a leaned turn?
How come the bikes squats when stopping?
How come the bike rises during hard acceleration?
How do forks work?
How does a shock work?
How does each adjustment work?
Why do you have change your suspension adjustment when changing tire brands?
Why do you have to change the suspension setting depending what race track you are at?
Why do you have to counter steer once at speed?
How is the bike held up during a leaned turn?
How come the bikes squats when stopping?
How come the bike rises during hard acceleration?
How do forks work?
How does a shock work?
How does each adjustment work?
Why do you have change your suspension adjustment when changing tire brands?
Why do you have to change the suspension setting depending what race track you are at?
2b: Narrowing My Topic
Many motorcyle owners are afraid to touch the suspension adjustments on their motorcycle because they do not understand how everything works. I bet if I started writing now about everything I know about motorcycles I could come up with fifteen pages easily. My problem is being able to narrowing all that information into one topic. I want explain the forces acting on the bike, the workings on the internals of the suspension and then going into how each adjustment effects the forces acting on the motorcycle. I want to be able to show the reader how interesting the forces on a motorcycle are by using math and personal experience.
2a: Exploring My Topic
I have been doing informal research of my topic of motorcycle suspension for awhile now. This would be the first time I will actually have all my information in one place. There are a few websites that I know of that go into a great deal of information on the workings and functions of the suspension componets. I believe most of my information will come from books and interviews. I have a new book on the adjustment aspect and I already have a book that takes an engineering look on the topic. I did bookmark a motorcycle website that deals with the technical aspect of the suspension. I will be going to the race shop this weekend to talk with the technicans there to see if they can help guide me.
Monday, February 2, 2009
1b: My Topic
The topic I chose to write is about roadracing motorcycle suspension geometry. I chose this topic because I have been racing for a couple of years now and I still have trouble adjusting my suspension on my race bike. I would look forward to doing more research on this topic because it would interesting and helpful to me in the future.
What I do know about motorcycle suspension adjustments is how to adjust ride height by stiffening or relaxing the spring tension. I played around by stiffening and relaxing the springs and doing a few laps on the track to see what felt best to me. I also know how tire style and brand, tire pressures and chain tension can play an effect on the suspension setup.
The parts of the suspension setup that I am uncomfortable with is the front and rear pre-load and rebound. These are a major part of the suspension setup but since I don't know how to properly use these settings when I do make adjustments they usually make the ride quality worse. I would like to do the research on how to properly adjust motorcycle suspension to achieve the effect that I'm looking for. Also come March I will be able to apply my research to real life and see what I have researched works.
What I do know about motorcycle suspension adjustments is how to adjust ride height by stiffening or relaxing the spring tension. I played around by stiffening and relaxing the springs and doing a few laps on the track to see what felt best to me. I also know how tire style and brand, tire pressures and chain tension can play an effect on the suspension setup.
The parts of the suspension setup that I am uncomfortable with is the front and rear pre-load and rebound. These are a major part of the suspension setup but since I don't know how to properly use these settings when I do make adjustments they usually make the ride quality worse. I would like to do the research on how to properly adjust motorcycle suspension to achieve the effect that I'm looking for. Also come March I will be able to apply my research to real life and see what I have researched works.
1a: Possible Topics
1. History of motorcycle roadracing
2. motorcycle suspension geometry
3. History of Honda street motorcycles
2. motorcycle suspension geometry
3. History of Honda street motorcycles
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