Adaptive Automatic Control System Research Articles

Organization of adaptive automatic control systems of wheeled and tracked vehicles

The article considers the problem and principles of construction of on-board information-management systems of transport vehicles. The authors stated issues of organization of adaptive control systems, diagnostics and motion control of wheeled and tracked vehicles.

A new approach to the design of adaptive automatic control systems for a short-range gas turbine engine

The paper presents a new approach to the management of power plants by unmanned aerial vehicles, provides a structural diagram of the proposed automatic control systems of a gas turbine engine, presents preliminary results of modeling.

Effective model use in the closed self-tuning loop of adaptive automatic control systems

The precision of the output coordinates may be improved by formulating additional corrections in the automatic control system of a numerically controlled machine tool, by means of a model of the object of control with incomplete feedback.

Basic trends in the development of systems for the automatic control of equipment for the separation of nonhomogeneous liquid mixtures

The authors seek to intensify the process of separating nonhomogeneous liquid mixtures by creating fundamentally new adaptive (self-adjusting) automatic systems which form complete units with the equipment and which ensure a high efficiency of its operation. The choice of the control objective is determined by the specific plant situation. The generalized structure of an adaptive automatic control system is shown. The systems which have been developed have been introduced in seven plants in the chemical, petrochemical, microbiological, and food industries. The development and practical application of adaptive automatic control systems have made it possible to pass on to the creation of control systems based on microprocessor techniques.

最適自動操舵装置

This paper describes an Adaptive Automatic Steering Control System which has recently been developed by Nippon Kokan K.K. in cooperation with Yokogawa Hokushin Electric Corporation.The purpose of the system is to optimize both the course-keeping and course-changing ability of ship's autopilots under diverse operational and environmental conditions.The control systems for course-keeping and course-changing are distinctly different:(1) Course-Keeping ControlAn on-line parameter optimization procedure, based on the Hill-Climbing Method, is used in order to minimize the propulsion losses due to steering.(2) Course-Changing ControlModel Reference Adaptive Control (MRAC) is used in order to improve the transient characteristics during course changes, which makes it possible to assign the desired characteristics by a reference model.Full-scale sea trials have been carried out with this system, which show a great advantage for both economical steering ability and improved maneuverability.

Adaptive control applications to aerospace vehicles

HE word is used to describe the capability of human beings, animals, and plant life to adjust their characteristics in accordance with a changing environment. The adaptive control system thus is a system which will adjust its own characteristics in order to provide a desired control system performance in a changing dynamic environment. There has been considerable literature published on the subject of adaptive automatic control systems which has been concerned with aerospace vehicle control, process control, and machine control, as well as control in other technical areas. Research has included very general investigations which could apply to automatic controls of all types, as well as specific investigations concerned with the development of systems designed to adapt to particular environmental changes and for a particular application. The present survey is of the latter type, and is concerned with adaptive control systems which adapt for changing dynamics of the aerospace vehicle, when the vehicle is considered as a rigid body. Vehicle aerodynamic characteristics are changing due to changes in vehicle configuration, flight speed, Mach number, and altitude. These changes result in changes in the dynamics of the aerospace vehicle. The research approach used in the current survey was to perform search of patents granted in the United States on adaptive control systems. This search located 45 patents which were granted between the years of 1925 and 1967. Of these 45 patients, only 26 were determined to be within the scope of this paper. In addition to the patented systems, four systems of interest were located from a survey of current papers on adaptive flight control systems. The objective of the survey was to investigate the requirements for adaptive control systems, and to determine the means which have been developed to implement these requirements. The techniques discussed are generally applicable for use on all three axes of the aerospace vehicle. However, the examples presented are with reference to the pitch axis.