HBM TB1A, Инструкция по монтажу, Страница: 25 / 108

Mounting
TB1A
A0162-8.0 HBM: public
23
S
The dimensions of flange clearance Z must be such
that the connection screws can be put through and
tightened with a torque wrench.
5.5 Loading capacity
The torque measuring‐discs can be used to measure
static and dynamic torques.
Please note the following when measuring dynamic
torque:
S
The calibration made for static torques is also valid for
dynamic torque measurements.
S
The natural frequency f
0
for the mechanical
measuring system depends on the moments of inertia
J
1
and J
2
of the connected rotating masses and the
TB1A's torsional stiffness.
Use the below equation to determine the natural
frequency f
0
for the mechanical measuring system:
f
0
+
1
2
p
· c
T
·
ǒ
1
J
1
)
1
J
2
Ǔ
Ǹ
f
0
= Natural frequency in Hz
J
1,
J
2
= Mass moment of inertia in kgm
2
c
T
= Torsional stiffness in N
⋅
m/rad
S
The maximum permissible amplitude of vibration
(peak
‐
to
‐
peak) may be 160 % (at nominal torque 10
kN
⋅
m=120 %) of the TB1A's nominal torque, even
with alternating load. In all cases the vibration
bandwidth must lie within the loading range defined by
-M
N
and +M
N
.