Results 31 to 40 of about 31,408 (262)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Modified Hammerstein-Like Hysteresis Modeling and Composite Control Methods for Fast Steering Mirrors

Micromachines
Fast steering mirrors (FSMs), actuated by piezoelectric ceramics, play pivotal roles in satellite laser communication, distinguished by their high bandwidth and fast responsiveness, thereby facilitating the precise pointing and robust tracking of laser ...
Kairui Cao, Zekun Li, Guanglu Hao, Rui Li, Jie Zhang, Jing Ma   +5 more
doaj   +1 more source

Properties of dynamic magnetic loss of ferrite

AIP Advances, 2018
The B-H loop of ferrite becomes narrower with a decrease in the excitation frequency. However, even at frequencies lower than 1 kHz, the B-H loop exhibits a certain minimum width, which is referred to as the (DC) hysteresis loop, and its area corresponds
Hideo Saotome, Keisuke Azuma, Hiroki Kizuka, Takuma Tanaka   +3 more
doaj   +1 more source

High-bandwidth modeling for rate-dependent hysteresis nonlinearity using a standard Prandtl–Ishlinskii model

AIP Advances, 2021
Rate-dependent hysteresis of piezoelectric stack actuators (PSAs) is known to cause oscillations and instabilities. This paper introduces a novel electro-mechanical coupling model that can accurately characterize the high-bandwidth rate-dependent ...
Haigen Yang, Wei Zhu, Feifei Liu
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Study on dynamic hysteresis characteristic modeling and parameter identification methods for high-voltage piezoelectric actuators

Xibei Gongye Daxue Xuebao
High-voltage piezoelectric actuators are widely used in the field of active vibration control of aerospace structures due to their advantages of strong load capacity, large nominal thrust, and fast response.
LI Weiguang, LIU Ke, WANG Hui, DENG Qingtian, YANG Zhichun   +4 more
doaj   +1 more source

Study on Dynamic Hysteretic and Loss Properties of Silicon Steel Sheet Under Hybrid Harmonic and DC Bias Excitation

IEEE Access, 2020
The dynamic and static hysteresis properties as well as loss properties of grain oriented (GO) silicon steel sheet are measured under the AC-DC hybrid excitation containing both DC bias and harmonic components.
Xiaojun Zhao, Rui Wang, Zhenbin Du, Lichun Dong, Lanrong Liu   +4 more
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Neural network based identification of hysteresis in human meridian systems

International Journal of Applied Mathematics and Computer Science, 2012
Developing a model based digital human meridian system is one of the interesting ways of understanding and improving acupuncture treatment, safety analysis for acupuncture operation, doctor training, or treatment scheme evaluation.
Tan Yonghong, Dong Ruili, Chen Hui, He Hong   +3 more
doaj   +1 more source

Experimental Investigation on Limit Cycle Wing Rock Effect on Wing Body Configuration Induced by Forebody Vortices

Journal of Aerospace Technology and Management, 2016
The purpose of this paper is to present the aerodynamic and flow characteristics of a slender body with a 30° swept wing configuration undergoing a limit cycle oscillation using a synchronous measurement and control technique of wing rock/particle image ...
Zhen Rong, Xueying Deng, Baofeng Ma, Bing Wang   +3 more
doaj   +3 more sources