Results 41 to 50 of about 4,748 (264)

Real-space mesh techniques in density-functional theory [PDF]

open access: yesReviews of Modern Physics, 2000
This review discusses progress in efficient solvers which have as their foundation a representation in real space, either through finite-difference or finite-element formulations. The relationship of real-space approaches to linear-scaling electrostatics and electronic structure methods is first discussed.
openaire   +2 more sources

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm   +3 more
wiley   +1 more source

新型滤波减速器的效率分析及试验

open access: yesJixie chuandong, 2007
The meshing efficiency of the eccentric reducing mechanism and the filtering spline gear mechanism of a new type of filtering gear reducer (China patent CN1699793A) is analyzed.
潘继生, 梁锡昌, 王光建
doaj  

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 more
wiley   +1 more source

圆弧齿轮跑合后啮合状况的理论分析

open access: yesJixie chuandong, 2013
The related problems of length of line contactare quantificationally answered from the points that point meshing theory and basic concept of Equal radius arc tooth profile correct meshing condition.The theoretical basis and the corresponding mathematical
闫文斗, 段建中
doaj  

Kinematic Characteristic Analysis of Hypoid Gear based on Two Kinds of Eigenfunction

open access: yesJixie chuandong, 2021
Based on the classical space meshing theory, two kinds of basic eigenfunctions and eigenvectors of conjugate surfaces are defined. The function of the two kinds of eigenfunctions in the analysis of the meshing characteristics of conjugate surfaces is ...
Bingyang Wei   +3 more
doaj  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

空间曲线啮合齿轮的一种修形方法的研究

open access: yesJixie chuandong, 2014
The elastic deformation of the space curve meshing gear(SCMG)mechanism will happen under the loading condition,so as to the transmission precision is affected.Based on the space curve meshing theory,the force analysis of the meshing tine is carried out ...
何恩义, 陈扬枝
doaj  

General Mathematical Model of the Intersecting Cross-axis Gear based on Conjugate Curve

open access: yesJixie chuandong, 2020
In order to solve the problem that it is difficult to complete the full period contact characteristic control of the intersecting cross-axis gear based on the traditional conjugate surfaces meshing theory, a design and analysis method of the intersecting
Shuhong Liu, Rulong Tan, Xiaodong Guo
doaj  

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

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