This paper describes the numerical analysis and design for a higher jumping rescue robot using a pneumatic cylinder. First, the basic equations for jumping are derived and the simulation is performed. Then, the relationship between the jumping height and the pressure-receiving area of the cylinder is considered when the volume or the stroke of the cylinder is kept constant. This allows calculation of the optimal cross sectional area. In addition, the jumping height is also affected by the weight ratio between the rod and the cylinder tube. Based on these results, a robot equipped with a cylinder of the appropriate dimensions controlled by a well-selected valve is reengineered and demonstrated. Experimental results show that the improved robot can jump considerably higher than the former design with the same energy efficiency, as shown in the video 〈http://www.cm.ctrl.titech.ac.jp/study/jump/home.html〉.

1.
Tsukagoshi
,
H.
,
Mori
,
Y.
,
Sasaki
,
M.
,
Tanaka
,
T.
, and
Kitagawa
,
A.
,
2003
, “
Development of Jumping & Rolling Inspector to Improve the Debris-traverse Ability
,”
J. Robot. Mechatron.
,
15
(
5
), pp.
482
490
.
2.
Raibert, M. H., 1986, Legged Robots That Balance, MIT Press, Cambridge, MA.
3.
Yamafuji
,
Mitsuya
,
1991
, “
Development and Motion Control of a Jumping Mobile Robot
,”
JSME
,
57
(
537
), pp.
1616
1620
(in Japanese).
4.
Shearer
,
J. L.
,
1956
, “
Study of Pneumatic Processes in the Continuous Control of Motion with Compressed Air
,”
Trans. ASME
,
78
, pp.
233
249
.
5.
Moore
,
P. R.
et al.
,
1985
, “
Compensation in pneumatically actuated servomechanisms
,”
Trans. Inst. Meas. Control (London)
,
7
(
5
), pp.
238
244
.
6.
Bachmann, J. R., and Surgenor, B. W. 1997, “On Design and Performance of a Closed Circuit Pneumatic Positioning System,” 5th Scandinavian International Conf. on Fluid Power, Linkoping, Sweden May 28–30, Vol. 1.
7.
Saad, Michel A., 1985, Compressible Fluid Flow, Prentice-Hall, Englewood Cliffs, NJ.
8.
Anderson, B. W., 1967, The Analysis and Design of Pneumatic Systems, Wiley, New York.
9.
ISO 6358, 1989, “Pneumatic fluid power—Components using compressible fluids-Determination of Flow-rate characteristics.”
10.
Kagawa, T., 2002, “Energy Comparison of electric and pneumatic actuators,” 5th JFPS International Symposium on Fluid Power, pp. 345–351.
11.
Kitagawa, A., Tsukagoshi, H., Wu, H., and Park, S., 2003, “A Novel Pneumatic Power Source Using Solid-Gas Phase Transition,” Conference of Japan Fluid Power System Society in Autumn (in Japanese), pp. 123–126.
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