Electric machines, dynamic models and sensors in drive systems

The design of high performance motion controls for industrial robots is based on accurate models for the robot arm and drive systems. This paper presents analytical models and experimental data to show that interactions between electromechanical drives coupled with compliant linkages to arm link drive points are of fundamental importance to robot control system design. Flexibility in harmonic drives produces resonances in the 5 Hz to 8 Hz range. Flexibility in the robot linkages and joints connecting essentially rigid arm members produces higher frequency modes at 14 Hz and 40 Hz. The nonlinear characteristics of the drive system are modeled, and compared to experimental data. The models presented have been validated over the frequency range 0 to 50 Hz. The paper concludes with a brief discussion of the influence of model characteristics on motion control design.

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Diagnostic system for hot strip mill looper drive systems using dynamic models.

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.107.583 ◽

1987 ◽

Vol 107 (5) ◽

pp. 583-590

Author(s):

Toshio Kumamaru ◽

Toshihiko Ono ◽

Yuichi Tsuji ◽

Mitsuhiro Nishio

Keyword(s):

Dynamic Models ◽

Diagnostic System ◽

Hot Strip Mill ◽

Hot Strip ◽

Drive Systems

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Dynamic Models of Electric Machines

Electric Power Engineering Series - Electric Energy Systems ◽

10.1201/9781420007275.axc ◽

2008 ◽

pp. 627-642

Author(s):

Luis Rouco

Keyword(s):

Dynamic Models ◽

Electric Machines

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Variable Frequency AC Motor Drive Systems

10.1049/pbpo008e ◽

1988 ◽

Cited By ~ 41

Author(s):

David Finney

Keyword(s):

Motor Drive ◽

Variable Frequency ◽

Ac Motor ◽

Drive Systems

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Monetary policy and the effect of the transfer of oil prices to inflation

Voprosy Ekonomiki ◽

10.32609/0042-8736-2020-8-41-50 ◽

2020 ◽

pp. 41-50

Author(s):

Ph. S. Kartaev ◽

I. D. Medvedev

Keyword(s):

Monetary Policy ◽

Inflation Targeting ◽

Dynamic Models ◽

Oil Prices ◽

Oil Price ◽

Oil Price Shocks ◽

Negative Effects ◽

Price Shocks ◽

Policy Regime ◽

The Impact

The paper examines the impact of oil price shocks on inflation, as well as the impact of the choice of the monetary policy regime on the strength of this influence. We used dynamic models on panel data for the countries of the world for the period from 2000 to 2017. It is shown that mainly the impact of changes in oil prices on inflation is carried out through the channel of exchange rate. The paper demonstrates the influence of the transition to inflation targeting on the nature of the relationship between oil price shocks and inflation. This effect is asymmetrical: during periods of rising oil prices, inflation targeting reduces the effect of the transfer of oil prices, limiting negative effects of shock. During periods of decline in oil prices, this monetary policy regime, in contrast, contributes to a stronger transfer, helping to reduce inflation.

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Methods of parallel computing for multilevel fuzzy Takagi – Sugeno systems

PROBLEMS IN PROGRAMMING ◽

10.15407/pp2016.02-03.141 ◽

2016 ◽

pp. 141-149

Author(s):

S.V. Yershov ◽

◽

R.М. Ponomarenko ◽

Keyword(s):

Dynamic Models ◽

Fuzzy Inference ◽

Knowledge Bases ◽

Comparative Characteristic ◽

Software Systems ◽

Scientific Papers ◽

Speed Up ◽

Diagnostic Software ◽

Takagi Sugeno

Parallel tiered and dynamic models of the fuzzy inference in expert-diagnostic software systems are considered, which knowledge bases are based on fuzzy rules. Tiered parallel and dynamic fuzzy inference procedures are developed that allow speed up of computations in the software system for evaluating the quality of scientific papers. Evaluations of the effectiveness of parallel tiered and dynamic schemes of computations are constructed with complex dependency graph between blocks of fuzzy Takagi – Sugeno rules. Comparative characteristic of the efficacy of parallel-stacked and dynamic models is carried out.

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