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检索条件"主题词=numerical algorithms"
1087 条 记 录,以下是441-450 订阅
排序:
SENSITIVITY CONTROLLER FOR UNCERTAIN SYSTEMS
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JOURNAL OF GUIDANCE CONTROL AND DYNAMICS 1990年 第2期13卷 321-329页
作者: OKADA, K SKELTON, RE PURDUE UNIV DEPT AERONAUT & ASTRONAUTW LAFAYETTEIN 47906
In this paper a new controller design, which we Shall call the "trajectory sensitivity optimization" method, is presented to improve the robustness for parameter variations. The method uses the sensitivity t... 详细信息
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Particle swarm optimisation for hybrid electric drive-train sizing
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INTERNATIONAL JOURNAL OF VEHICLE DESIGN 2012年 第2-4期58卷 181-199页
作者: Ebbesen, Soren Doenitz, Christian Guzzella, Lino Inst Dynam Syst & Control CH-8092 Zurich Switzerland
Electric hybridisation of vehicles aims at reducing fuel consumption but increases production costs. Hence, automobile manufacturers are confronted with the multi-objective optimisation problem of sizing the drive-tra... 详细信息
来源: 评论
Feasible direction algorithm for optimal control problems with state and control constraints: Implementation
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JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS 1999年 第3期101卷 623-649页
作者: Pytlak, R Vinter, RB Mil Univ Technol Fac Cybernet Warsaw Poland Univ London Imperial Coll Sci Technol & Med Dept Elect & Elect Engn London England
In this paper, we describe the implementation aspects of an optimization algorithm for optimal control problems with control, state, and terminal constraints presented in our earlier paper. The important aspect of the... 详细信息
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Generalized characteristic boundary conditions for computational aeroacoustics
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AIAA JOURNAL 2000年 第11期38卷 2040-2049页
作者: Kim, JW Lee, DJ Korea Adv Inst Sci & Technol Dept Aerosp Engn Yusong Gu Taejon 305701 South Korea
An extended conservative formalism of the characteristic boundary conditions is presented on the basis of the generalized coordinates for practical computational aeroacoustics. The formalism is derived for solving the... 详细信息
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Finite-discrete element modelling of sea ice sheet fracture
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INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 2021年 217卷 228-258页
作者: Lilja, Ville-Pekka Polojarvi, Arttu Tuhkuri, Jukka Paavilainen, Jani Aalto Univ Sch Engn Dept Mech Engn POB 14300 FI-00076 Aalto Finland Rand Simulat Ltd Vantaa Finland
A rate-independent, de-cohesive damage model for the fracture modelling of large, cellular, plate-like, quasi-brittle structures is proposed. A hybrid, three-dimensional finite-discrete element method to investigate s... 详细信息
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Eigenstrains and the elastic field of an adatom
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JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 1998年 第9期46卷 1557-1579页
作者: Peralta, A Kouris, D Knap, J Sieradzki, K Arizona State Univ Dept Mech & Aerosp Engn Tempe AZ 85287 USA
A harmonic lattice model for an adatom at the (001) surface of a cubic crystal is developed, based on the concept of eigenstrains. In this context, eigenstrains represent the distortion introduced by the adatom, affec... 详细信息
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Deep drawing simulations using the finite element method embedding a multi-level crystal plasticity constitutive law: Experimental verification and sensitivity analysis
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COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 2019年 第Sep.1期354卷 245-270页
作者: Barrett, Timothy J. Knezevic, Marko Univ New Hampshire Dept Mech Engn 33 Acad WayKingsbury HallW119 Durham NH 03824 USA
This paper presents experimental verification of a multi-level simulation framework aimed at sheet metal forming analysis. Specifically, deep drawing of a cylindrical cup simulations from alloy AA6022-T4 sheets are ca... 详细信息
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On-line performance optimisation of aero engine control system
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AUTOMATICA 2003年 第12期39卷 2115-2121页
作者: Lyantsev, OD Breikin, TV Kulikov, GG Arkov, VY Univ Sheffield Dept Automat Control & Syst Engn Sheffield S1 3JD S Yorkshire England Ufa State Aviat Tech Univ Dept Automat Control Syst Ufa 450000 Russia
This paper is focused on on-line performance optimisation of gas turbine engine control systems. Practical problems of optimal engine control design and implementation are considered. An algorithm for on-line resoluti... 详细信息
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Influence of anisotropic elasticity on the mechanical properties of fivefold twinned nanowires
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JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 2015年 84卷 358-379页
作者: Niekiel, Florian Spiecker, Erdmann Bitzek, Erik Univ Erlangen Nurnberg Dept Mat Sci & Engn D-91058 Erlangen Germany
Previous atomistic simulations and experiments have shown an increased Young's modulus and yield strength of fivefold twinned (FT) face-centered cubic metal nanowires (NWs) when compared to single crystalline (SC)... 详细信息
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COMPARISON OF NONEQUILIBRIUM SOLUTION algorithms APPLIED TO CHEMICALLY STIFF HYPERSONIC FLOWS
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AIAA JOURNAL 1995年 第7期33卷 1211-1219页
作者: PALMER, G VENKATAPATHY, E ELORET INST PALO ALTOCA 94303
Three solution algorithms, explicit under relaxation, point implicit, and lower-upper symmetric Gauss-Seidel, are used to compute nonequilibrium flow around the Apollo 4 return capsule at the 62-km altitude point in i... 详细信息
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