A procedure for analysing the force transmissibility of. planar multiloop linkage mechanisms is introduced. The procedure considers the power flow paths in a multiloop linkage. By using a normalized force transmission index based on the ‘gain per unit cost’ concept, the force transmission performance of multiloop linkages can be characterized and measured quantitatively. The result shows that a multiloop mechanism may transmit effective force to the output link when it is at a singularity of motion. In such a condition, the power can reach the output link without passing through the singular-related joints in a multiloop mechanism.
AltH.Der uebertragungswinkel und seine bedeutung fuer das konstruieren periodischer getriebe. Werkstattstechnik, 1932, 26, 61–64.
2.
BlockA.VDI Berichte, 1958, 29, 158-159.
3.
YuanM. S. C.FreudensteinF.WooL. S.Kinematic analysis of spatial mechanisms by means of screw coordinates: Part II—analysis of spatial mechanisms. Trans. ASME, J. Engng for Industry, 1971, 93(B1), 67–73.
4.
BagciC.Static force and torque analysis using 3 × 3 screw matrix, and transmission criteria for space mechanisms. Trans. ASME, J. Engng for Industry, 1971, 93(B1), 90–101.
5.
SutherlandG.RothB.A transmission index for spatial mechanisms. Trans. ASME, J. Engng for Industry, 1973, 95(B2) 589–597.
ErdmanA. G.SandorG. N.Mechanism Design: Analysis and Synthesis, Vol. 1, 2001 (Prentice-Hall, Englewood Cliffs, New Jersey).
8.
WuL. I.Modified transmission angle of planar linkage mechanisms. In Proceedings of the ASME 21st Biennial Mechanism Conference, Chicago, Illinois, 1990, DE-Vol. 25, pp. 131–140.
9.
DenavitJ.HartenbergR. S.RaziR.UickerJ. J.Jr.Velocity, acceleration, and static force analyses of spatial linkages. Trans. ASME, J. Appl. Mechanics, 1965, 32(4), 903–910.
10.
WatanabeK.FunabashiH.Kinematic analysis of Stephenson six-link mechanisms—2nd report, index of motion-transmission characteristics. Bull. Jap. Soc. Mech. Engrs, 1984, 27(234), 2871–2878.
11.
TsaiM. J.LeeH. W.Generalized evaluation for the transmission performance of mechanisms. Mech. Mach. Theory, 1994, 29(4), 607–618.
12.
HolteJ. E.ChaseT. R.A force transmission index for planar linkage mechanisms. In Proceedings of the ASME Mechanisms Conference, Minneapolis, Minnesota, 1994, DE-Vol. 70, pp. 377–386.
