Journal of Mechanical Design, Transactions Of the ASME

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Data-Driven Energy Efficiency and Part Geometric Accuracy Modeling and Optimization of Green Fused Filament Fabrication Processes
Journal of Mechanical Design, Transactions Of the ASME - Tập 142 Số 4 - 2020
Morteza Alizadeh, Mehrnaz Noroozi Esfahani, Wenmeng Tian, Junfeng Ma
Abstract Nowadays, increasing awareness of environmental protection has evoked the adoption of green technologies in design and manufacturing. As a revolutionizing manufacturing technology that produces components in a layer-by-layer fashion, additive manufacturing (AM) has followed this trend. Among a variety of AM processes, fused filament fabricat...... hiện toàn bộ
Incorporating Moldability Considerations During the Design of Polymer Heat Exchangers
Journal of Mechanical Design, Transactions Of the ASME - Tập 133 Số 8 - 2011
Juan Cevallos, Satyandra K. Gupta, Avram Bar‐Cohen
Recently, available formulations of thermally enhanced polymer composites are attractive in heat exchanger applications due to their low cost and improved corrosion resistance compared to the conventional metal options. This paper presents a systematic approach to the design of plate-fin heat exchangers made out of thermally enhanced polymer composites. We have formulated the design proble...... hiện toàn bộ
Dynamic Design of a High-Speed Motorized Spindle-Bearing System
Journal of Mechanical Design, Transactions Of the ASME - Tập 132 Số 3 - 2010
Shuyun Jiang, Shufei Zheng
This technical brief presents a dynamic model based on the traditional transfer matrix method (TMM) and Jones–Harris nonlinear rolling bearing model to study the effects of the extended structure parameters on the vibration behavior of a high-speed motorized spindle-bearing system. The first critical speed and the dynamic stiffness of the high-speed motorized spindle-bearing system are sys...... hiện toàn bộ
A Method for the Design of Compliant Mechanisms With Small-Length Flexural Pivots
Journal of Mechanical Design, Transactions Of the ASME - Tập 116 Số 1 - Trang 280-290 - 1994
Larry L. Howell, Ashok Midha
Compliant or flexible-link mechanisms gain some or all of their motion from the relative flexibility of their joints rather than from rigid-body joints only. Unlike rigid-body mechanisms, energy is not conserved between the input and output ports of compliant mechanisms because of energy storage in the flexible members. This effect and the nonlinearities introduced by large deflections com...... hiện toàn bộ
An Efficient Pareto Set Identification Approach for Multiobjective Optimization on Black-Box Functions
Journal of Mechanical Design, Transactions Of the ASME - Tập 127 Số 5 - Trang 866-874 - 2005
Songqing Shan, G. Gary Wang
Both multiple objectives and computation-intensive black-box functions often exist simultaneously in engineering design problems. Few of existing multiobjective optimization approaches addresses problems with expensive black-box functions. In this paper, a new method called the Pareto set pursuing (PSP) method is developed. By developing sampling guidance functions based on approximation m...... hiện toàn bộ
Product and Process Tolerance Allocation in Multistation Compliant Assembly Using Analytical Target Cascading
Journal of Mechanical Design, Transactions Of the ASME - Tập 130 Số 9 - 2008
Zhijun Li, Michael Kokkolaras, Panos Y. Papalambros, S. Jack Hu
Abstract Tolerance allocation is the process of determining allowable dimensional variations in products (parts and subassemblies) and processes (fixtures and tools) in order to meet final assembly quality and cost targets. Traditionally, tolerance allocation is conducted by solving a single optimization problem. This "all-in-one" (AIO) approach may ...... hiện toàn bộ
Review of Metamodeling Techniques in Support of Engineering Design Optimization
Journal of Mechanical Design, Transactions Of the ASME - Tập 129 Số 4 - Trang 370-380 - 2007
G. Gary Wang, Songqing Shan
Computation-intensive design problems are becoming increasingly common in manufacturing industries. The computation burden is often caused by expensive analysis and simulation processes in order to reach a comparable level of accuracy as physical testing data. To address such a challenge, approximation or metamodeling techniques are often used. Metamodeling techniques have been developed f...... hiện toàn bộ
A Model for the Prediction of Churning Losses in Geared Transmissions—Preliminary Results
Journal of Mechanical Design, Transactions Of the ASME - Tập 129 Số 1 - Trang 128-133 - 2007
Christophe Changenet, Philippe Velex
A series of formulas are presented which enable accurate predictions of churning losses for one pinion characteristic of automotive transmission geometry. The results are based on dimensional analysis and have been experimentally validated over a wide range of speeds, gear geometries, lubricants, and immersion depths. The case of a pinion-gear pair in mesh has been considered, and it has b...... hiện toàn bộ
A Closed-Form Planet Load Sharing Formulation for Planetary Gear Sets Using a Translational Analogy
Journal of Mechanical Design, Transactions Of the ASME - Tập 131 Số 2 - 2009
H. Ligata, A. Kahraman, Avinash Kumar Singh
A simplified discrete model to predict load sharing among the planets of a planetary gear set having carrier planet position errors is presented in this study. The model proposes a translational representation of the torsional system and includes any number of planets positioned at any spacing configuration. The discrete model predictions are validated by comparing them to (i) the predicti...... hiện toàn bộ
Prediction of Mechanical Power Loss of Planet Gear Roller Bearings Under Combined Radial and Moment Loading
Journal of Mechanical Design, Transactions Of the ASME - Tập 135 Số 12 - 2013
D. Talbot, Sheng Li, A. Kahraman
A modeling methodology is proposed to predict load-dependent (mechanical) power loss of cylindrical roller bearings under combined radial and moment loading with focus on planetary gear set planet bearings. This methodology relies on two models. The first model is a bearing load distribution model to predict load intensities along rolling element contacts due to combined force–moment loadi...... hiện toàn bộ
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