Optimum Design of Electromagnets for Magnetic Levitation of Transport Systems based on the Inverse Problem Solutions

Article is devoted to design of optimum electromagnets for magnetic levitation of transport systems. The method of electromagnets design based on the inverse problem solution of electrical equipment is offered. The method differs from known by introducing a stage of minimization the target functions providing the stated levitation force and magnetic induction in a gap, and also the mass of an electromagnet. Initial values of parameters are received, using approximate formulas of the theory of electric devices and electrical equipment. The example of realization of a method is given. The received results show its high efficiency at design. It is practical to use the offered method and the computer program realizing it as a part of system of the automated design of electric equipment for transport with a magnetic levitation.

Algorithm for Estimation of Electricity Consumption Reduction by Using Variable Frequency Drive of Main Line Pumps

The article is about using of variable frequency drives for reduction oil pumping main line pumps energy consumption. Block diagram of developed computer program is shown in the article. The computer program allows to determine the reduction of energy consumption and to estimate payback period of variable frequency drives.

A numerical model for predicting shoreline changes /

A mathematical model for long-term, three-dimensional shoreline evolution is developed. The combined effects of variations of sea level; wave refraction and diffraction; loss of sand by density currents during storms, by rip currents, and by wind; bluff erosion and berm accretion; effects of manmade structures such as long groin or navigational structures; and beach nourishment are all taken into account. A computer program is developed with various subroutines which permit modification as the state-of-the-art progresses. The program is applied to a test case at Holland Harbor, Michigan. (Author).

Interaction of waves and currents /

This report presents an overview of wave-current interacion, including comprehensive review of references to significant U.S. and foreign literature available through December 1981. Specific topics under review are the effects of horizontally and vertically varying currents on waves, wave refraction by currents, dissipation and turbulence, small- and medium-scale currents, caustics and focusing, and wave breaking. The results of the review are then examined for engineering applications. The most appropriate general-purpose computer program to include wave-current interaction is the Dutch Rijkswaterstaat program CREDIZ, which is based on a parabolic wave equation. Further applications include wave and current forces on structures and possibly sediment transport. The report concludes with a brief state-of-the-art review of wave-current interaction and a list of topics needing further research and development.

WAVERTF, wave propagation over obstacles and irregular topography : a user's manual /

Includes abstract.

STREMR : numerical model for depth-averaged incompressible flow /

"September 1993."

A user's guide to SHALWV : numerical model for simulation of shallow-water wave growth, propagation and decay /

Includes abstract.

Calculation of water oscillation in coastal harbors : HARBS and HARBD user's manual /

"April 1987."

Lower Green Bay hydrodynamic and mass transport : numerical model study /

"December 1987."

A user's guide to SHALWV, numerical model for simulation of shallow-water wave growth, propagation and decay.

"June 1987."

Mobility impacts from improvements to an arterial street /

"September 1990."

UTPS technical briefs : Tampa Symposium highlights.

"Performing organization: Price, Williams & Associates"--Tech. rept. doc. p.

A Code for zero-one integer programming, ILLIP-2 : a programming manual for ILLIP-2 /

"UILU-ENG 77 1711."

A code for designing optimal networks by implicit enumeration using the all-interconnection inequality formulation : (a programming manual for ILLODIE-AIF) /

Thesis (M.S.)--University of Illinois at Urbana-Champaign.

A manual of SIMPL, a logic network simulator for PLATO /

"UILU-ENG 79 1728."