摘要:

An operational matrix for the integration of a shifted Legendre vector is applied to the parameter identification of time-invariant non-linear lumped systems with and without noise, proper shape having been given to the non-linear terms. A new approach is developed which is simple, accurate and computationally convenient.

ISSN:0020-7721    

DOI:10.1080/00207728708964037

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

A double Jacobi series is introduced to approximate functions of two independent variables. It is then applied to analysing simultaneous linear distributed parameter systems. The solution for the coefficient matrices can be obtained directly from a Kronecker product formula. The method is algebraic and computer oriented. One illustrative example is given for demonstration. Very satisfactory results are obtained, owing to the rapid convergence of the shifted Jacobi series.

ISSN:0020-7721    

DOI:10.1080/00207728708964038

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

Algebraic polynomials are used to approximate the state trajectory, the control and the functions in differential equations and in the criterion for the constrained optimal cyclic control problem. Several discretized problems using algebraic polynomials are proposed to approximate the basic control problem. Sufficient conditions for the convergence of solutions of approximating problems to the optimal solution of the basic problem are given and the convergence rate is estimated. The application to a class of industrial optimal cyclic control problems is discussed.

ISSN:0020-7721    

DOI:10.1080/00207728708964039

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

A model is developed to determine the optimal mix of traffic types between zones in a large city, provided the distribution of person-trips by purpose is given. The utilization ratio of each of the following four traffic types are determined: train, bus, taxi and private car. The model is a linear-programming model, where the generalized cost obtained as a sum of the trip cost and the travel time converted into a money term is minimized under various constraints, such as the capacity of each transportation facility and the permissible amount of pollutant emission. The outcomes of such drastic policies as the reduction of the total amount of car traffic or the reinforcement of pollution control can thus be easily simulated. By applying to the data of the OD survey in 1970 in Osaka, it is confirmed that the model can explain fairly well the actual situations of modal split among different traffic means. The impact of highly enforced environmental protection control is also evaluated by finding the optimum solution to the model.

ISSN:0020-7721    

DOI:10.1080/00207728708964040

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

Many different kinds of transportation systems such as ‘group rapid transit’, etc., have recently been presented as ideal urban public transportation systems. When planning to introduce such a new transportation system into a city, it is necessary to select the most desirable system for that city from those that have been proposed. The comprehensive evaluation of transportation systems must reflect various aspects such as the costs of construction and maintenance and the viewpoints or both the system users and the local inhabitants. This makes it one of the most difficult and yet vitally important problems in public transportation planning. The analytic hierarchy process (AHP) developed by T. L Saaty is straightforward and has the feature that it can deal with both qualitative and quantitative factors at the same time, and it is suitable for applying to complex evaluation problems, In this paper, three transportation systems are proposed for one of the newly planned towns in Kansai Cultural and Academic Research Complexes, and a comprehensive evaluation of these systems is performed by applying the AHP. It has been proved through the process of evaluation that information which is very useful in reaching a consensus for choosing a system can be obtained.

ISSN:0020-7721    

DOI:10.1080/00207728708964041

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

In this paper, the Fourier-series approach is extended to solve the problem of system identification. The algorithms presented are similar to those already derived for other orthogonal functions. Since most elements of the Fourier operational matrix are zero, there is a considerable saving in computing time and storage. In addition, the present method is simpler to use than others.

ISSN:0020-7721    

DOI:10.1080/00207728708964042

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor