Results 51 to 60 of about 73,121 (297)

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Parameter Calibration of Pig Manure with Discrete Element Method Based on JKR Contact Model

AgriEngineering, 2020
The conversion of pig manure into organic fertilizer has become a research hotspot in agricultural engineering, and many types of pig manure processing machinery have been derived.
Wenjie Yu, Renxin Liu, Weiping Yang
doaj   +1 more source

Influence of Crushed Rock Properties on the Productivity of a Hydraulic Excavator

Applied Sciences, 2021
Among many factors that influence an excavator’s performance and productivity, the volume of the bucket load and duration of the excavator working cycle are crucial.
Trpimir Kujundžić, Mario Klanfar, Tomislav Korman, Zlatko Briševac   +3 more
doaj   +1 more source

Parameter Calibration for Simulation of Gentiana Seedling Substrate Based on Discrete Element Method

BioResources, 2023
The physical and mechanical parameters of the rotten rice straw (RRS), rice husk biochar (RHB), and the mixture of the two materials (the substrate) were calibrated by Plackett-Burman and Box-Behnken experiments to obtain the parameters for simulation of
Hongguang Cui, Tian Li, Tianyou Chen, Liyan Wu, Hongbo Li, Cuihong Liu, Mingjin Xin, Yuqiu Song   +7 more
doaj   +2 more sources

Tailoring the frictional properties of granular media

, 2011
A method of modifying the roughness of soda-lime glass spheres is presented, with the purpose of tuning inter-particle friction. The effect of chemical etching on the surface topography and the bulk frictional properties of grains is systematically ...
C. A. Coulomb, Cornelius Fischer, I. N. Bronstein, I. Rodríguez Iturbe, Markus Benderoth, Matthias Schröter, P. Meakin, Philipp Aurin, Sonia Utermann   +8 more
core   +1 more source

Temporally heterogeneous dynamics in granular flows [PDF]

, 2005
Granular simulations are used to probe the particle scale dynamics at short, intermediate, and long time scales for gravity driven, dense granular flows down an inclined plane.
Silbert, L. E.
core   +3 more sources

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Ripple and kink dynamics

, 2001
We propose a relevant modification of the Nishimori-Ouchi model [{\em Phys. Rev. Lett.} {\bf 71}, 197 (1993)] for granular landscape erosion. We explicitly introduce a new parameter: the angle of repose $\theta_r$, and a new process: avalanches.
A. Betat, A. Stegner, D. Goossens, H. Caps, H. Nishimori, J. Duran, N. Vandewalle, N. Vandewalle, R.A. Bagnold, R.B. Hoyle, R.S. Anderson, W. Landry   +11 more
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Granular flow down a rough inclined plane: transition between thin and thick piles

, 2002
The rheology of granular particles in an inclined plane geometry is studied using molecular dynamics simulations. The flow--no-flow boundary is determined for piles of varying heights over a range of inclination angles $\theta$.
Aguirre M. A., Aguirre M. A., Ahn H., Ancey C., Ancey C., Andreotti B., Aradian A., Aranson I. S., Bagnold R. A., Bocquet L., Cundall P. A., Daerr A., Daerr A., Ertaş D., Gary S. Grest, Hanes D. M., James W. Landry, Lemieux P.-A., Leonardo E. Silbert, Louge M. Y., Mehta A., Mills P., Nerone N., Pouliquen O., Pöschel T., Sadjadpour M., Silbert L. E., Silbert L. E., Silbert L. E., Silbert L. E., Silva M. D., Walton O. R., Zheng X. M., Zhou Y. C.   +33 more
core   +1 more source