Just for interest sake, a comparison in Dynamic Amplification Factors:
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Spanish experiment
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Spanish experiment
“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.” — Ernst F. Schumacher
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Spanish experiment
Hi Vince
Can you please remind us what zeta is: a dampening factor?
In Lincast the ratio (I hope we speak of the same thing) is in cell D42.
Merlin
Can you please remind us what zeta is: a dampening factor?
In Lincast the ratio (I hope we speak of the same thing) is in cell D42.
Merlin
Fly rods are like women, they won't play if they're maltreated
Charles Ritz, A Flyfisher's Life
Charles Ritz, A Flyfisher's Life
Spanish experiment
Yes Merlin it is damping
regards
Vince
regards
Vince
“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.” — Ernst F. Schumacher
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Spanish experiment
Merlin
The hard stop pushes the damping towards 0 and increases the damped frequency.
regards
Vince
Dynamic SystemsNotice the effect of damping on the natural frequency! It decreases from its undamped value by a factor of 1 − α2.
The hard stop pushes the damping towards 0 and increases the damped frequency.
regards
Vince
“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.” — Ernst F. Schumacher
https://www.sexyloops.com/index.php/ps/ ... f-coaching
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- gordonjudd
- Posts: 1859
- Joined: Sat Jan 19, 2013 11:36 pm
- Location: Southern California
Spanish experiment
Grunde,
I hope you can give your view of why the spring produces a peak acceleration force on the brick that is nearly twice as large as the force produced by the string.
As noted in the other thread:
Gordy
I hope you can give your view of why the spring produces a peak acceleration force on the brick that is nearly twice as large as the force produced by the string.
As noted in the other thread:
Thanks for taking the time to explain the overshoot phenomena and its impact on the acceleration of the line in casting.Grunde thanks for pointing out my error. So how do you think about the lag in the deflection of the spring for an an applied acceleration (not force) change to the spring?
In Aitor's experiment wouldn't the initial acceleration force on the lead mass be .49 N while the initial spring force would be zero?
How do you explain the force increase that is related to the the overshoot in the deflection of the spring as compared to the force from the string? That is the phenomena that most readers do not understand, and something I am not able to explain.
Gordy
Spanish experiment
Gordygordonjudd wrote:Grunde,
I hope you can give your view of why the spring produces a peak acceleration force on the brick that is nearly twice as large as the force produced by the string.
I have seen you use the term "acceleration force" before, what does it mean?
Vince
“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.” — Ernst F. Schumacher
https://www.sexyloops.com/index.php/ps/ ... f-coaching
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- gordonjudd
- Posts: 1859
- Joined: Sat Jan 19, 2013 11:36 pm
- Location: Southern California
Spanish experiment
Vince,I have seen you use the term "acceleration force" before, what does it mean?
In this case it refers to the f=-kx force from the spring that is providing the force that causes the brick mass to accelerate. i.e. f_spring=mass_brick*a_brick so a_brick=f_spring/mass_brick.
Gordy
Spanish experiment
Gordy - I'm going to blatantly plagiarize Magnus because he said it so well:gordonjudd wrote:Vince,I have seen you use the term "acceleration force" before, what does it mean?
In this case it refers to the f=-kx force from the spring that is providing the force that causes the brick mass to accelerate. i.e. f_spring=mass_brick*a_brick so a_brick=f_spring/mass_brick.
Gordy
I have no idea what you just said
"There can be only one." - The Highlander.
PS. I have a flying tank. Your argument is irrelevant.
PSS. How to generate a climbing loop through control of the casting stroke is left as a (considerable) exercise to the reader.
PS. I have a flying tank. Your argument is irrelevant.
PSS. How to generate a climbing loop through control of the casting stroke is left as a (considerable) exercise to the reader.