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Sidney
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Subject: Blade flexibilitySent: 2 hours 57 minutes then at 3:09 p.m.
Hi,
What exactly is flexibility for table tennis players? I find that this term is used a lot
when I’m looking for blades, but I don’t have a good idea about it.
thank you
Hypnotic
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Sent: 2 hours 47 minutes then at 3:19 p.m.And many people misuse this term …
Flexibility means how much the blade bends along its longitudinal axis. The amount of flexibility depends primarily on the rigidity of the blade. Rigid blades have little flexibility and vice versa. Many people use this term when they really want to refer to a central deviation. The standard deviation is how much the blade twists perpendicular to its plane. The main component here is the density of the materials used and the structure of the blade. This is what we call hard or soft steel. Many people associate hardness with the top layer, but it’s not just that (more on that later). So we can have stiff but soft blades, flexible but hard blades and everything in between.
Sidney
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Sent: 2 hours 27 minutes then at 3:39 p.m. Hipnotic wrote:
And many people misuse this term … The main component here is the density of the materials used and the structure of the blade. This is what we call hard or soft steel. Many people associate hardness with the top layer, but it’s not just that (more on that later). So we can have stiff but soft blades, flexible but hard blades and everything in between. |
I can clearly see the animated images you submitted. This will help. There seems to be a pendulum in “Flex.”
movement when the “Hardness” affects the trampoline. I had no idea when the ball hit the racket, these effects can be produced. I thought the 5-ply wood racket is solid.
So what are the pros and cons of each?
Edited by sidneyl – 2 hours 27 minutes then at 3:39 p.m.
dajdosta
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Sent: 2 hours 25 minutes then at 3:41 p.m.Great explanation, thx.
Is flexibility related to the vibrations we feel in the hand?
Is there always more vibration in the more flexible blades or is there something else in the game that determines the vibration?
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Sent: 2 hours 22 minutes then at 3:44 p.m.These movements do not happen exclusively, they take place simultaneously, and they are very small. You will feel one more than the other depending on the design of the blade and the type and strength of the impact.
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Sent: 2 hours 13 minutes then at 3:53 p.m.| dajdosta wrote:
Great explanation, thx. Is flexibility related to the vibrations we feel in the hand? Is there always more vibration in the more flexible blades or is there something else in the game that determines the vibration? |
No. The diagram shows that when the blade bends, there is almost no movement near the area of the thumb and forefinger. This means that no data will be transferred to your hands. The mean deflection (along with other forms of vibration) is what gives the brain information. It usually happens that these states are related to each other. Normally, flexible blades are also soft, and rigid blades are usually hard (relatively speaking). There are other variables involved, composite fibers dampen vibration in a way that wood does not, and it gives a completely different feeling. The other states I mentioned are the ones we call annoying vibrations, the fibers eliminate those vibrations, so you still have a clear feeling.
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Sent: 2 hours 10 minutes then at 3:56 p.m.When do we use “soft” and “hard” blades?
Hypnotic
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Sent: 1 hour 35 minutes then at 4:31 p.m.In general (it also depends on other variables) flexibility controls the trajectory. Higher stiffness results in a smoother trajectory, while lower stiffness results in a curved trajectory. Stiffer blades are usually used close to the table for gaming and focus more on speed than rotation, while more flexible blades are used more for looping from a distance.
The mean deflection guides our perceived hardness, which we call the residence time. A larger standard deviation means more sensation in the hand. Harder blades give a feeling of a shorter residence time and vice versa. This is a personal preference, e.g., power loopers don’t usually like very soft blades because they feel the blade “holds” the ball too much.
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Sent: 4 minutes then at 6:02 p.m.I understood my personal preference for stiff but soft blades because I tend to play close to the table. I think the elastic blades are bad when you hit hard and close the counter loop because the elasticity causes inaccuracy in where you think the ball will land, which feels like a lack of control.
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