Geometric modeling
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In this paper, a new design of cylindrical panels is proposed with two functionally graded carbon nanotube-reinforced composite (FG-CNTRC) face sheets and a corrugated core. The corrugated core layer is modelled by applying the homogeneous technique according to the firstorder shear deformation theory (FSDT). The nonlinear vibration behaviour of first-order shear deformable cylindrical panels with geometric nonlinearities is analysed in the present paper.
10p dathienlang1012 03-05-2024 2 0 Download
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Bài giảng CAD/CAM/CNC - Bài 4.1: Mô hình hóa hình học cung cấp cho sinh viên những nội dung gồm: đặt vấn đề; mô hình 2D; mô hình khung dây 3D; mô hình mặt 3D; mô hình khối 3D;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!
18p mothuahoa 04-05-2024 3 1 Download
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Bài giảng CAD/CAM/CNC - Bài 4.2: Mô hình hóa hình học cung cấp cho sinh viên những nội dung gồm: khái quát; phương pháp kết cấu; phương pháp biên; các phương pháp khác;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!
16p mothuahoa 04-05-2024 3 0 Download
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Doctoral thesis of Philosophy: Modelling of inhomogeneous magnetic fields in electromagnetic devices
This thesis derives closed form equations to describe electromagnetic device characteristics for a toroid, solenoid and a case study induction machine. By considering stored magnetic field energy, this approach allows the relationship between electrical, magnetic and kinetic energy to be quantified and analyzed in ways that allows improved accuracy compared with conventional magnetic circuit modeling methods. This thesis also provides insights into how geometric parameters impact energy transfer and operational characteristics of electromagnetic devices.
112p runthenight04 02-02-2023 6 2 Download
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The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.
84p runthenight04 02-02-2023 6 3 Download
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Equivalent inclusion approach is then developed to account for possible diversions, such as non-idealistic geometric forms of the inhomogeneities, imperfect matrix-inclusion contacts, filler dispersions, and when the particular values of the fillers’ properties are unspecified, using available numerical or experimental reference conductivity data for particular composites.
28p capheviahe27 23-02-2021 23 4 Download
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Doctoral dissertation present the content: point cloud representation and the proposed method for table plane detection; primitive shapes estimation by a new robust estimator using geometrical constraints; detection and estimation of a 3-D object model for a real application; conclusion and future works.
159p gaocaolon6 30-07-2020 28 3 Download
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In the present work, the thermal hydraulic RELAP5-3D code was used to develop a model of this reactor. The model was performed using geometrical and material data from the Angra 2 final safety analysis report (FSAR).
8p christabelhuynh 31-05-2020 19 0 Download
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In this document, we present a simplified geometrical model (0D model) for the in-core corium propagation transient. A degraded core with a formed corium pool is used as an initial state. This state can be obtained from a simulation computed with an integral code.
9p christabelhuynh 30-05-2020 5 0 Download
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In this study, we incorporate trade credit policy into a joint marketing and pricing problem in which demand rate depends on the length of the credit period provided by the retailer for her customers, marketing expenditure, and selling price.
16p tocectocec 24-05-2020 20 1 Download
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This work shows a free-body model for tolerance analysis, that uses the force free-body diagrams and the functional equations’ sensitivities, by simulating the geometrical tolerances together with the dimensional ones.
12p tohitohi 19-05-2020 8 2 Download
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This paper presents a new hybrid double mixed stress (4f-HMS) model, for the static analysis of isotropic plane structures, in which it is assumed a physically and geometrically linear behaviour.
22p tohitohi 19-05-2020 13 0 Download
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In this paper, the first and second stage compressor blades of a gas turbine were studied by the experimental and numerical modal analyses.
14p tohitohi 19-05-2020 11 1 Download
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Simulation and visualization of the mechanical components have become a predominant phase during the design and the production stages. Several means are used to improve the design and to reduce study time.
8p tohitohi 19-05-2020 17 2 Download
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This thesis aims to develop finite element models for studying vibration of the 2D-FGM beam. These models require high reliability, good convergence speed and be able to evaluate the influence of material parameters, geometric parameters as well as being able to simulate the effect of shear deformation on vibration characteristics and dynamic responses of the 2D-FGM beam.
27p xacxuoc4321 08-07-2019 49 8 Download
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This study simulated a control rod assembly (CRA), which is a part of reactor shutdown systems, in immersed and fluid flow conditions. The CRA was inserted into the reactor core within a predetermined time limit under normal and abnormal operating conditions, and the CRA (which consists of complex geometric shapes) drop behavior is numerically modeled for simulation.
14p minhxaminhyeu3 12-06-2019 12 1 Download
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The stochastic 2D Navier-Stokes equations on the torus driven by degenerate noise are studied. We characterize the smallest closed invariant subspace for this model and show that the dynamics restricted to that subspace is ergodic. In particular, our results yield a purely geometric characterization of a class of noises for which the equation is ergodic in L2 (T2 ). Unlike previous 0 works, this class is independent of the viscosity and the strength of the noise.
41p noel_noel 17-01-2013 45 9 Download
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The purpose of this paper is to carry out the abelianization program proposed by Atiyah [1] and Hitchin [9] for the geometric quantization of SU(2) Wess-Zumino-Witten model. Let C be a Riemann surface of genus g. Let Mg be the moduli space of semi-stable rank 2 holomorphic vector bundles on C with trivial determinant. For a positive integer k, let Γ(Mg , Lk ) be the space of holomorphic sections of the k-th tensor product of the determinant line bundle L on Mg . An element of Γ(Mg , Lk ) is called a rank 2 theta function...
50p noel_noel 17-01-2013 60 8 Download
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In this paper we present the solution to a longstanding problem of differential geometry: Lie’s third theorem for Lie algebroids. We show that the integrability problem is controlled by two computable obstructions. As applications we derive, explain and improve the known integrability results, we establish integrability by local Lie groupoids, we clarify the smoothness of the Poisson sigma-model for Poisson manifolds, and we describe other geometrical applications. Contents 0. Introduction
47p tuanloccuoi 04-01-2013 44 6 Download
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Geometrical Three-Ring-Based Model for MIMO Mobile-to-Mobile Fading Channels in
13p sting05 10-02-2012 49 9 Download