scholarly journals A Novel Method for Meshed CFD to FEA Pressure Mapping

2018 ◽  
Author(s):  
Matthew Marko
Keyword(s):  
Numerical Analysis ◽  
Surface Areas ◽  
Pressure Mapping ◽  
3D Surface ◽  
Pressure Profiles ◽  
Surface Shell ◽  
Novel Method

This manuscript discusses a novel method to map pressure results from one 3D surface shell mesh onto another. This technique is especially important when transferring results from one numerical analysis to another. This method works independent of the actual pressures, and only focuses on ensuring the surface areas consistently match. By utilizing this approach, the cumulative forces consistently match for all input pressures. This method is demonstrated to work for pressure profiles with precipitous changes in pressures, and with small quadrangular source elements being applied to a mix of large quadrangular and triangular target elements, and the forces at all pressure profiles match remarkably.

scholarly journals A Novel Method for Pressure Mapping between Shell Meshes of Varying Geometries and Resolutions

Computation ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 29
Author(s):  
Matthew David Marko
Keyword(s):  
Surface Areas ◽  
Pressure Mapping ◽  
3D Surface ◽  
Pressure Profiles ◽  
Surface Shell ◽  
Novel Method

This manuscript discusses a novel method to map pressure results from one 3D surface shell mesh onto another. This method works independently of the actual pressures, and only focuses on ensuring the surface areas consistently match. By utilizing this approach, the cumulative forces consistently match for all input pressures. This method is demonstrated to work for pressure profiles with precipitous changes in pressures, and with small quadrangular source elements being applied to a mix of large quadrangular and triangular target elements, and the forces at all pressure profiles match remarkably.

scholarly journals New approach in the application of lignin for the synthesis of hybrid materials

2017 ◽  
Vol 89 (1) ◽  
pp. 161-171 ◽  
Author(s):  
Beata Podkościelna ◽  
Marta Goliszek ◽  
Olena Sevastyanova
Keyword(s):  
Suspension Polymerization ◽  
Nitrogen Adsorption ◽  
Experimental Protocol ◽  
New Approach ◽  
Surface Areas ◽  
Adsorption Data ◽  
Novel Method ◽  
Derivatives Of ◽  
Polymerization Method ◽  
Nitrogen Adsorption Data

AbstractIn this study, a novel method for the synthesis of hybrid, porous microspheres, including divinylbenzene (DVB), triethoxyvinylsilane (TEVS) and methacrylated lignin (L-Met), is presented. The methacrylic derivatives of kraft lignin were obtained by reaction with methacryloyl chloride according to a new experimental protocol. The course of the modification of lignin was confirmed by attenuated total reflectance (ATR-FTIR) and nuclear magnetic resonance (NMR) spectroscopy. The emulsion-suspension polymerization method was employed to obtain copolymers of DVD, TEVS and L-Met in spherical forms. The porous structures and morphologies of the obtained lignin-containing functionalized microspheres were investigated by low-temperature nitrogen adsorption data and scanning electron microscopy (SEM). The microspheres are demonstrated to be mesoporous materials with specific surface areas in the range of 430–520 m2/g. The effects of the lignin component on the porous structure, shape, swelling and thermal properties of the microspheres were evaluated.

Forming 3D Sheet Metals by Means of Continuous Rolling Method

2009 ◽  
Vol 16-19 ◽  
pp. 570-574 ◽  
Author(s):  
Zhi Qing Hu ◽  
Ming Zhe Li ◽  
Xue Peng Gong ◽  
Zeng Ming Feng
Keyword(s):  
Sheet Metal ◽  
Three Dimensional ◽  
Sheet Metals ◽  
Continuous Rolling ◽  
The Core ◽  
3D Surface ◽  
Multipoint Forming ◽  
Rolling Method ◽  
Novel Method

In this paper, we present a novel method of using the continuous rolling to fabricate three-dimensional sheet metal. The core bendable roller is composed of the flexible axis and the controllable equipment. The transversal shape of the sheet metal can be realized by regulating the controllable equipment to make the axis of bendable roller bent; the longitudinal shape is formed by driving the three bendable rollers rotated and the top roller making a displacement synchronously. Some experiments were performed and typical 3D surface parts were formed. Based on the results of the experiments, the effects of the thickness and the rolling times are discussed. The results of the research will be beneficial to define the parameters and perfect the theory of continuous multipoint forming of multiform 3D parts.

Novel method to synthesize ordered mesoporous silica with high surface areas

2008 ◽  
Vol 10 (4) ◽  
pp. 408-415 ◽  
Author(s):  
Montserrat Colilla ◽  
Francisco Balas ◽  
Miguel Manzano ◽  
María Vallet-Regí
Keyword(s):  
Mesoporous Silica ◽  
High Surface ◽  
Ordered Mesoporous Silica ◽  
Surface Areas ◽  
Ordered Mesoporous ◽  
Novel Method

scholarly journals Preparation of High-Performance Enteromorpha Prolifera–Based Porous Carbons by Nitrogen Modification and Their Electrochemical Performance

2021 ◽  
Vol 9 ◽  
Author(s):  
Ming Li ◽  
Kuihua Han ◽  
Zhaocai Teng ◽  
Meimei Wang ◽  
Yang Cao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Chemical Properties ◽  
High Rate ◽  
Cycle Performance ◽  
Enteromorpha Prolifera ◽  
Porous Carbons ◽  
Surface Areas ◽  
Notable Increase ◽  
Novel Method

This study presents a novel method to improve the electrochemical performance of porous carbons (PCs) by simply adjusting the elemental composition of their precursors with nitrogen-rich materials as additives. Nitrogen-modified enteromorpha prolifera–based (EP-based) PCs are prepared from EP and urea (or melamine). Overall, compared with the control PC without nitrogen modification, their pore structures and surface chemical properties present similar improvement. When used in supercapacitors, their specific capacitances increase by approximately 22% due to their significant development of mesopores at 2.5–7.0 nm, which increases the effective surface areas. With an appropriate amount of nitrogen-containing or oxygen-containing functional groups maintaining surface wettability, the notable increase of graphitized N improves their conductivity. Due to the higher graphitization degrees, their resistances are reduced. With more mesopores transporting ions, they exhibit excellent high-rate capacitive performance. Moreover, they show remarkable long cycle performance with the specific capacitance retention of larger than 92% after 10,000 cycles.

scholarly journals A Novel Method for 3D Surface and Solid Construction Analysis of Fabric Microstructure

2012 ◽  
Vol 21 (3) ◽  
pp. 539-550 ◽  
Author(s):  
Ye-Jin Lee ◽  
Byung-Cheol Lee
Keyword(s):  
3D Surface ◽  
Novel Method

Numerical Analysis of the Grasp Configuration of a Planar 3-DOF Linkage-Driven Underactuated Finger

2012 ◽  
Vol 8 (2) ◽  
Author(s):  
Hamed Khakpour ◽  
Lionel Birglen
Keyword(s):  
Numerical Analysis ◽  
Dynamic Simulation ◽  
Degrees Of Freedom ◽  
Joint Angles ◽  
Final Configuration ◽  
Contact Points ◽  
Novel Method ◽  
Three Degrees Of Freedom ◽  
Underactuated Finger ◽  
Simulation Package

This paper proposes a novel method to investigate the grasp sequence of an underactuated (a.k.a. adaptive) finger with three degrees of freedom but only one actuator and find its final configuration. This method considers the magnitude and the sign of the torques generated on the phalanges of the finger through the contact points. By using these torques as indices, the algorithm calculates the values of the joint angles during the grasping sequence until the finger reaches its final configuration. To illustrate the effectiveness of this method a class of a 3-DOF adaptive finger is chosen and analyzed and then, using the proposed methodology, its grasp configuration is calculated when grasping different fixed objects. Finally, simulations are repeated using a dynamic simulation package and the obtained results are compared to the proposed method. The results show that the method can properly estimate the final configuration of the grasp.

Morphometric patterns among the 3D surface areas of human hand entheses

2016 ◽  
Vol 160 (4) ◽  
pp. 694-707 ◽  
Author(s):  
Fotios Alexandros Karakostis ◽  
Carlos Lorenzo
Keyword(s):  
Human Hand ◽  
Surface Areas ◽  
3D Surface
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