回転型粒状体ダンパーのローター位置が減衰力特性に

509
Effect of Rotor Position on Damping Force Properties
of Rotary Damper Using Particle Assemblage
Koichi HAYASHI, National Institute of Technology, Toba College, 1-1 Ikegami-cho, Toba 517-8501, Japan
Yasushi IDO, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
Key Words: Rotary Damper, Particle, Damping Force, Vibration Control Device, Damping
1
54
[mm]
(1)
Ball bearing
(2)
Cap
(3)
Xian-Ming Bai
(4)
8
(5)
A
A
20 32
Cylinder
Rotor
(6)
Particles
20
8
2
2.1
1
0.8 mm
SUJ2
G500
A-A
Fig.1 Schematic diagram of the rotary particles damper.
Angle sensor
Motor
2.2
2
BX6400S
Rotary damper
CP-45H-5V
8 mm
KFG-2-120-D2-11
Strain gauge
DS-5614
2.3
3
0
Rotation-Titubation
Conversion mechanism
1
60 deg. ±30 deg.
Fig.2 Schematic of experimental apparatus
日本機械学会東海支部第 65 期総会・講演会講演論文集(’16. 3. 17－18) No.163－1
0.595
1 Hz
4
±30 deg.
Fig.3 Rotor position
60 deg.
90 deg.
Table 1 Experimental conditions
0, 30, 60, 90
Rotor position [deg.]
Packing fraction
0.595, 0.605
Vibration frequency [Hz]
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
5
deg.
5(a)
60 deg.
0.3
Torque [N·m]
0.2
0
±30 deg.
Packing fraction : 0.595
Frequency : 1 Hz
5(b)
0.1
0
Rotor position
0 deg.
30 deg.
60 deg.
90 deg.
-0.1
-0.2
-0.3
-30
-20
-10 0
10
Angle [deg.]
20
4
30
Fig.4 Torque vs. angle curves.
(Packing fraction: 0.595, Vibration frequency: 1 Hz)
3
0.3
Torque [N·m]
0.2
Rotor position : 0 deg.
Frequency : 1 Hz
0.1
(1)
0
-0.1
Packing fraction
0.595
0.605
-0.2
-0.3
-30
-20
-10 0
10
Angle [deg.]
20
30
(a) Rotor position: 0 deg.
0.3
Torque [N·m]
0.2
Rotor position : 60 deg.
Frequency : 1 Hz
0.1
0
-0.1
Packing fraction
0.595
0.605
-0.2
-0.3
-30
-20
-10 0
10
Angle [deg.]
20
(b) Rotor position: 60 deg.
Fig.5 Torque vs. angle curves.
(Vibration frequency: 1 Hz)
30
C
Vol.68 No.673 (2002)
pp.2585-2590.
(2) H. V. Panossian, Structual Damping Enhancement Via
Non-Obstructive Particle Damping Technique, Transactions
of the ASME, Journal of Vibration and Acoustics, Vol.114
(1192), pp.101-105.
(3)
8-219377 (1996).
(4)
Vol.10 No.1 (2010) pp.63-68.
(5) Xian-Ming Bai, Binoy Shah, Leon M. Keer, Q. Jane Wang,
Randall Q. Snurr, Particle dynamics simulations of a
piston-based particle damper, Powder Technology, Vol.189
(2009), pp.115-125.
(6)
Dynamics and Design Conference 2015 USB
(2015)
336.