Accession Number : AD0710258

Title :   NONLINEAR AND SPECIAL-PURPOSE UNITS FOR AN ANALOG COMPUTER COMPLEX,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Mazel,G. A. ; Novakovskii,A. N.

Report Date : 28 MAY 1970

Pagination or Media Count : 16

Abstract : An analog computing system is developed. For simulating nonlinear dynamic systems, the following units are needed: a function multiplier, a universal nonlinear unit of single-variable functions, and a special switchable-structure unit. The function multiplier is designed with two operational amplifiers with varistor-type squarers; this unit can generate given relationships, and given functions; maximum multiplication error, 0.5 percent, division error, 5 percent, in multiplying 100-v ac by 100-v dc signals, phase distortion appears at 500 Hz. The universe nonlinear unit consists of diodes and resistors and has two output amplifiers; by reversing reference and diode voltages, various characteristics are obtained; temperature stability is achieved through thermostatic control. A special switchable-structure unit is planned; it will include backlash, coordinate restriction, dead zone, squarer, sine-cosine converter, relay characteristic, and other nonlinear schemes mounted on separate switchable plates.

Descriptors :   (*ANALOG COMPUTERS, ELECTRONIC EQUIPMENT), (*NONLINEAR SYSTEMS, SIMULATION), DESIGN, MATHEMATICAL MODELS, USSR

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE