In this paper,a numerical method for solving the optimal control(OC) problems is presented.The method is enlightened by the Chebyshev-Legendre(CL) method for solving the partial differential equations(PDEs).The Legen-...In this paper,a numerical method for solving the optimal control(OC) problems is presented.The method is enlightened by the Chebyshev-Legendre(CL) method for solving the partial differential equations(PDEs).The Legen-dre expansions are used to approximate both the control and the state functions.The constraints are discretized over the Chebyshev-Gauss-Lobatto(CGL) collocation points.A Legendre technique is used to approximate the integral involved in the performance index.The OC problem is changed into an equivalent nonlinear programming problem which is directly solved.The fast Legendre transform is employed to reduce the computation time.Several further illustrative examples demonstrate the effciency of the proposed method.展开更多
The second kind of modified Bessel function of order zero is the solutions of many problems in engineering. Modified Bessel equation is transformed by exponential transformation and expanded by J.P.Boyd’s rational Ch...The second kind of modified Bessel function of order zero is the solutions of many problems in engineering. Modified Bessel equation is transformed by exponential transformation and expanded by J.P.Boyd’s rational Chebyshev basis.展开更多
基金supported by the National Natural Science Foundation of China (Grant Nos.10471089,60874039)the Shanghai Leading Academic Discipline Project (Grant No.J50101)
文摘In this paper,a numerical method for solving the optimal control(OC) problems is presented.The method is enlightened by the Chebyshev-Legendre(CL) method for solving the partial differential equations(PDEs).The Legen-dre expansions are used to approximate both the control and the state functions.The constraints are discretized over the Chebyshev-Gauss-Lobatto(CGL) collocation points.A Legendre technique is used to approximate the integral involved in the performance index.The OC problem is changed into an equivalent nonlinear programming problem which is directly solved.The fast Legendre transform is employed to reduce the computation time.Several further illustrative examples demonstrate the effciency of the proposed method.
文摘The second kind of modified Bessel function of order zero is the solutions of many problems in engineering. Modified Bessel equation is transformed by exponential transformation and expanded by J.P.Boyd’s rational Chebyshev basis.
