This paper discusses the integrated design on structural shape and controller of positioning actuators for spin stands. To allow highly flexible shape design of the mechanism for the positioning actuator and to improve the calculation efficiency in the shape optimization, this paper proposes an integrated design method in which a structural shape is defined like as a skeleton and meats and a genetic algorithm (GA) is used to search the combination of the skeleton and meats for obtaining better performance of the closed-loop system in iterative design procedure. The iterative optimization procedure includes the shape and the controller updates. It is shown in design examples that the proposed integrated design method can improve the performance of the positioning actuator according to the performance indices. Therefore, the proposed method is effective to such active mechanisms that harder specifications are assigned to the design.

Volume Subject Area:
Dynamic Systems and Control
Topics:
Control equipment, Design, Particle spin, Rotation, Shapes, Spin (Aerodynamics), Actuators, Design methodology, Closed loop systems, Genetic algorithms, Optimization, Shape design, Shape optimization
1.
Wood
R. W.
,
Miles
J.
and
Olson
T.
, “
Recording technologies for terabit per square inch systems
,”
IEEE Trans. Magn.
, vol.
38
, pp.
1711
–
1718
, July
2002
.
2.
L. Feng, W. Wong, C. Du, C. Duan, G. X. Guo, T.C. Chong and W. Ye, “Stretching servo performances on a spin stand,” in Proc. Amer. Control Conf., vol. 2, 2004, pp. 1159–1164.
3.
A. Naganawa, S. Mori, H. Tada, Y. Shibuya, G. Obinata and K. Ouchi, “FEM analysis and control of micro actuator with piezoelectric element for spinstand,” in Proc. IIP/ISPS Joint MIPE, 2003, pp. 8–9.
4.
Ando
H.
,
Obinata
G.
and
Miyagaki
J.
, “
Integrated design of structure/controller for head gimbals assembly of magnetic recording test stand
,”
JSME Trans.
, vol.
71
, no.
703
, pp.
987
–
994
,
2005
. (in Japanese).
5.
Tressler
J. F.
,
Cao
W.
,
Uchino
K.
and
Newnham
R. E.
, “
Finite element analysis of the cymbal-type flextensional transducer
,”
IEEE Trans. Ultrason., Ferroelect., Freq. Contr.
, vol.
45
, pp.
1363
–
1369
, Sept.
1998
.
6.
Onoda
J.
and
Haftka
R.
, “
An approach to structure/control simultaneous optimization for large flexible spacecraft
,”
AIAA J.
, vol.
25
, no.
8
, pp.
1133
–
1138
,
1987
.
7.
G. Obinata, S. Kizawa, A. Nakayama and L. Zou, “Simultaneous optimization of controlled structure based on unified framework of control design,” in Proc. 2nd Asian Contr. Conf., vol. 1, pp. 293–296, July 1997.
8.
K. M. Grigoriadis and R. E. Skelton, “’Integrated design for intelligent structures,” in Proc. International Conference on Intelligent Materials, June 1994, pp. 589–599.
9.
Mayzus
A.
and
Grigoriadis
K.
, “
Integrated structural and control design for structural systems via LMIs
,” in
Proc. IEEE Conf. Control Applications
, vol.
1
, Aug.
1999
, pp.
75
–
79
.
10.
G. Obinata, K. Hiramoto, H. Son and A. Nakayama, “Integrated concept for designing control systems in weakly dissipative structures,” in Proc. 5th MOVIC, vol. 2, Dec. 2000, pp. 581–584.
11.
Iwasaki
T.
,
Hara
S.
and
Yamauchi
K.
, “
Dynamical system design from a control perspective: finite frequency positive-realness approach
,”
IEEE Trans. Auto. Contr.
, vol.
48
, pp.
1327
–
1354
, Aug.
2003
.
12.
H. Ishikawa, I. Kajiwara and T. Yabe, “Design of shape and control system for micro-airplane development,” in Proc. SICE Annual Conf., CD-ROM, MM06-2, Aug. 2002, pp. 408–413.
13.
I. Kajiwara and T. Omori, “Topology and Shape Optimization of Smart Structure Considering Controllability,” in Proc. Dynamics and Design Conf. 2003, CD-ROM, 320, Sept. 2003. (in Japanese).
14.
Kajiwara
I.
,
Sasaki
Y.
and
Nagamatsu
A.
, “
Structural topology optimization by genetic algorithm (Improvement of calculation efficiency for real system optimization)
,”
JSME Trans.
, vol.
62
, no.
597
, pp.
1731
–
1738
,
1996
. (in Japanese).
15.
D. C. McFarlane and K. Glover, “Robust Controller Design Using Normalized Coprime Factor Plant Descriptions,” Lecture Notes in Control and Information Sciences 138, Springer-Verlag (1990).
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