also proven in actual practice confirming the information obtained for this
phenomenon. Rackets usually get damaged or brake at the end of the rim as a result
of the vibratio
n – i.e. between the centre o
f gravity and the end of the racket. Such
ult in uncomfortable feeling and traumas in p
9.7 Determining the forces in the handle
From Figure 11 we can determine the maximum values of support reactions at
points C and D of the handle. From (Eq. 31
) Mp = F.l and from (Eq. 32) FC.l=F(L+l)→
Fc=F(L+l)/l (Fc is the support reaction
FD.l = FL→ FD.= FL/l (FD is the support reaction in
point D [N]); L = 430mm and l
Assuming: F = S = 6.987 nsek
Fc=6.987(43+16)/16 = 25.76 N sec
F = 6.987.43/16 = 18.77 N sec
Chec
From the sum ∑Xi=0 ; S + FD = Fc → 6.987 + 18.77 = 25.76
M – racket mass
r – the radius between the CG and
the player’s wrist along the Z1 - Z1axis
om the CG to the shoulder.
R – the radius of the hand fr
If we considered the
move
ment of the racket in the
player’s hand when he blows
eet the ball flying at him
aximum speed U1=58.3
m/sec, then the CG of the
around the Z – Z axis and
Z1 - Z1axis [21]. This is close
to an arc havin
ctively. Considering the
fact that the ball should be hit
