نتایج جستجو برای: hysteresis modelling

تعداد نتایج: 175071  

2001
Dominique M. Hanssens Ming Ouyang

Conventional wisdom says that it takes ever increasing marketing budgets and/or lower prices to create sustained growth in sales, which may or may not be profitable in the long run. However, some documented cases and conceptual evidence suggest that marketing spending or prices can exhibit hysteresis in market response, a condition where temporary changes in the marketing mix are associated wit...

Journal: :J. Applied Mathematics 2011
Mohammad Reza Zakerzadeh Mohsen Firouzi Hassan Sayyaadi Saeed Bagheri Shouraki

Preisach model is a well-known hysteresis identification method in which the hysteresis is modeled by linear combination of hysteresis operators. Although Preisach model describes the main features of system with hysteresis behavior, due to its rigorous numerical nature, it is not convenient to use in real-time control applications. Here a novel neural network approach based on the Preisach mod...

2015
Weimin Song Shiping Chen Yadan Zhou Bo Wu Yajuan Zhu Qi Lu Guanghui Lin

Diel hysteresis occurs often between soil CO2 efflux (R(S)) and temperature, yet, little is known if diel hysteresis occurs in the two components of R(S), i.e., autotrophic respiration (R(A)) and heterotrophic respiration (R(H)), and how diel hysteresis will respond to future rainfall change. We conducted a field experiment in a desert ecosystem in northern China simulating five different scena...

Journal: :The Review of scientific instruments 2010
Guoying Gu Limin Zhu

In this paper, an ellipse-based mathematic model is developed to characterize the rate-dependent hysteresis in piezoelectric actuators. Based on the proposed model, an expanded input space is constructed to describe the multivalued hysteresis function H[u](t) by a multiple input single output (MISO) mapping Gamma:R(2)-->R. Subsequently, the inverse MISO mapping Gamma(-1)(H[u](t),H[u](t);u(t)) i...

Journal: :Journal of Physics: Conference Series 2021

Abstract Model Predictive Control is an energy efficient climate control strategy in buildings. However, the effort associated with physics-based modelling seems to prevent widespread application residential Applying machine-learning algorithms on historical data promises generation of predictive models for control. In a recent experimental study, Data based random forests and linear outperform...

2016
Wenjun Ye

Inverse Compensation of Hysteresis using Modified Generalized Prandtl-Ishlinskii Hysteresis Model

Hysteresis loop curves are highly important for numerical simulations of materials deformation under cyclic loadings. The models mainly take account of only the tensile half of the stabilized cycle in hysteresis loop for identification of the constants which don’t vary with accumulation of plastic strain and strain range of the hysteresis loop. This approach may be quite erroneous particularly ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2012
R S Kharwanlang Prabodh Shukla

The random-field Ising model of hysteresis is generalized to dilute magnets and is solved on a Bethe lattice. Exact expressions for the major and minor hysteresis loops are obtained. In the strongly dilute limit the model provides a simple and useful understanding of the shapes of hysteresis loops in magnetic rock samples.

The use of different optical-fiber sensors for weighing measurements is Abstract described. By using three different mechanical stressing mechanisms, the operation of the fiber-to-fiber transducer systems are tested and the results are presented. Parameters such as sensitivity, hysteresis, resolution, and dynamic range are measured. A comparison of the results has shown that the sensor system m...

1999
JANA KOPFOVÁ Hal L. Smith

The Cauchy problem for an ordinary differential equation coupled with a hysteresis operator is studied. Under physically reasonable assumptions on the forcing term, uniqueness of solutions is shown without assuming Lipschitz continuity of the hysteresis curves. The result is true for any kind of hysteresis operators with monotone curves of motion.

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