Results 251 to 260 of about 82,503 (291)

Topology optimization for femto suspension design

Microsystem Technologies, 2005
The ongoing increase of track density requirements of hard disk drives (HDDs) and decrease of flying height of sliders have brought along formidable challenges to suspension design. Conventional design processes are quite tedious and inefficient. This paper presents a HDD suspension design process by using topology optimization. An efficient structural
S. K. Yu, B. Liu
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Topological transitions in unconfined vibrated concentrated suspensions

Journal of Non-Newtonian Fluid Mechanics, 2016
Abstract Vertical vibration of a concentrated suspension of spherical particles in a liquid yields an array of intriguing behaviors.  Here we report new results for unconfined suspensions on a vibrating plate, and show that under certain conditions the suspension forms depressions or craters, while in other conditions it gathers to form a mound, a ...
Jennifer A. Staton, Stephanie R. Dungan, Ronald J. Phillips   +2 more
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Topology optimization of vehicle rear suspension mechanisms

International Journal for Numerical Methods in Engineering, 2017
SummaryAs suspensions critically affect the ride and handling performance of vehicles, considerable efforts have been made to improve their design by an optimization method. In this paper, we propose a topology optimization–based method for suspension synthesis by using a 3‐dimensional model constructed with nonlinear bars and zero‐length springs that ...
Suh In Kim, Seok Won Kang, Yong‐Sub Yi, Joonhong Park, Yoon Young Kim   +4 more
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Topology design to improve HDD suspension dynamic characteristics

Structural and Multidisciplinary Optimization, 2006
In this paper, topology optimization in design of suspensions for high-density magnetic recording systems is studied. With the development of higher data density and the faster data streaming, a hard-disk drive (HDD) is required to move faster with greater positioning accuracy.
Deng-lin Zhu, An-lin Wang, Tao Jiang
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Topological properties on n-fold pseudo-hyperspace suspension of a continuum

Topology and its Applications, 2020
Given a metric continuum \(X\) let \(C_{n}(X)\) denote the hyperspace of nonempty closed subsets of \(X\) having at most \(n\) components and \(F_{1}(X)\) the space of singletons of \(X\), both endowed with the Hausdorff metric. The quotient continuum \(C_{n}(X)/F_{1}(X)\) is denoted by \(\mathrm{PHS}_{n}(X)\) and is called the pseudo-hyperspace ...
Santiago-Santos, Alicia, Tapia-Bonilla, Noé Trinidad   +1 more
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On optimal design of HDD suspension using topology optimization

Microsystem Technologies, 2002
This paper explores the use of topological optimization to systematically design suspensions for hard disk drives (HDD). The design problem is posed as a material distribution problem, which varies spatial thickness of suspensions so as to enhance their dynamic performance.
L. Pan, G. K. Lau, H. Du, S.-F. Ling
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Topology optimization for air suspension bracket integrated shape optimization

2008 IEEE Vehicle Power and Propulsion Conference, 2008
This paper was concerned with a new integrated method of topology optimization and shape optimization. The new method was used in this paper to optimize the structure of an air suspension bracket. In this article, Method of Moving Asymptotes was employed to solve the variable density model discrete by finite element method. The compliance and mass were
null Zhao Hongwei, null Chen Xiaokai, null Lin Yi, null Zheng Mingjun   +3 more
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Topology optimization of head suspension assemblies for suppressing head Lift-off

Microsystem Technologies, 2004
Topology optimization method is applied to improve shock resistance of suspension using a formulation that maximizes resonant frequencies while reducing effective mass. The design method is successfully used to obtain optimum solutions, which have tapered features in width and thickness and thin flexural linking to a dimple pad.
G. K. Lau, H. Du
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Subcellular localization and topology of homogalacturonan methyltransferase in suspension-cultured Nicotiana tabacum cells

Planta, 1999
Pectin is a complex polysaccharide in the primary walls of all plant cells that is thought to be synthesized in the cellular endomembrane system and inserted into the wall via exocytosis. The most abundant pectic polysaccharide, homogalacturonan, is partially methylesterified within the cell by the pectin methyltransferase homogalacturonan ...
F, Goubet, D, Mohnen
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Modelling and simulation of suspension system based on topological structure

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
The traditional approach of longitudinal cutting in suspension system simplification introduces redundant degrees of freedom, leading to increased system errors. This study focused on a seven degrees of freedom (7DOF) car model and constructed a suspension system topology model based on an across-cutting approach.
Jiangpeng Ren, Huijie Zhang, Huirong Hao, Dong Zhou, Jiawei Wang, Wenchao Zhao   +5 more
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