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Ivancevic_Applied-Diff-Geom

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<strong>Applied</strong> Manifold <strong>Geom</strong>etry 395F[C] ◦ F[A] : F[X] → F[Y ]. In this way the total response of the linearsystem r = m ◦ e : U → Y in Mor(Vect) transforms into the nonlinearsystem behavior F[r] = F[m] ◦ F[e] : F[U] → F[Y ] in Mor(K). Obviously,F[r], if exists, is given by a nonlinear F−-transform of the linear stateequation (3.205).The purpose of this section is to formulate a nonlinear F–transformfor the linear state equation (3.205) for biodynamics, i.e., the biodynamicsfunctor machine. In subsequent sections we give a three–step developmentof a fuzzy–stochastic–Hamiltonian formulation for the biodynamics functormachine F[S], with a corresponding nonlinear system behavior F[r].Muscle–Driven, Dissipative, Hamiltonian BiodynamicsIn this subsection we choose the functor Can, as the first–order Hamiltonianformalism is more suitable for both stochastic and fuzzy generalizationsto follow. Recall that the general deterministic Hamiltonian biodynamics,representing the canonical functor Can : S • [SO(n) i ] ⇒ S• ∗ [so(n) ∗ i ], is givenby dissipative, driven δ−Hamiltonian equations,˙q i = ∂H∂p i+ ∂R∂p i, (3.206)ṗ i = F i − ∂H∂q i + ∂R∂q i , (3.207)q i (0) = q i 0, p i (0) = p 0 i , (3.208)including contravariant equation (3.206) – the velocity vector–field, andcovariant equation (3.207) – the force 1−form, together with initial jointangles and momenta (3.208). Here (i = 1, . . . , N), and R = R(q, p) denotesthe Raileigh nonlinear (biquadratic) dissipation function, and F i =F i (t, q, p) are covariant driving torques of equivalent muscular actuators, resemblingmuscular excitation and contraction dynamics in rotational form.The velocity vector–field (3.206) and the force 1−form (3.207) togetherdefine the generalized Hamiltonian vector–field X H , which geometricallyrepresents the section of the momentum phase–space manifold T ∗ M, whichis itself the cotangent bundle of the biodynamical configuration manifoldM; the Hamiltonian (total energy) function H = H(q, p) is its generatingfunction.As a Lie group, the configuration manifold M is Hausdorff [Abrahamet al. (1988); Marsden and Ratiu (1999); Postnikov (1986)]. Therefore, forx = (q i , p i ) ∈ U p , U p open in T ∗ M, there exists a unique one–parameter

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