Efficient design and optimization of MEMS by integrating commercial simulation tools

2002 ◽  
Author(s):  
O. Nagler ◽  
M. Trost ◽  
B. Hillerich ◽  
F. Kozlowski
Keyword(s):  
Efficient Design ◽  
Design And Optimization ◽  
Simulation Tools

Efficient design and optimization of MEMS by integrating commercial simulation tools

1998 ◽  
Vol 66 (1-3) ◽  
pp. 15-20 ◽  
Author(s):  
Oliver Nagler ◽  
Michael Trost ◽  
Bernd Hillerich ◽  
Frank Kozlowski
Keyword(s):  
Efficient Design ◽  
Design And Optimization ◽  
Simulation Tools

Self-assembly with colloidal clusters: facile crystal design using connectivity landscape analysis

Soft Matter ◽  
2017 ◽  
Vol 13 (39) ◽  
pp. 7098-7105 ◽  
Author(s):  
Mehdi B. Zanjani ◽  
John C. Crocker ◽  
Talid Sinno
Keyword(s):  
Self Assembly ◽  
Landscape Analysis ◽  
Efficient Design ◽  
Geometrical Analysis ◽  
Design And Optimization ◽  
Colloidal Clusters ◽  
Crystal Design

Geometrical analysis of connectivity enables efficient design and optimization of colloidal cluster assemblies.

scholarly journals Toward Incorporation of Membrane Properties Non-Uniformity in Spiral Wound Module Performance Simulators—Effect of Non-Uniform Permeability on Fouling Layer Evolution

Fluids ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 127 ◽  
Author(s):  
Margaritis Kostoglou ◽  
Anastasios Karabelas
Keyword(s):  
Experimental Studies ◽  
Membrane Properties ◽  
Design And Optimization ◽  
Systematic Assessment ◽  
Simulation Tools ◽  
Flow Pressure ◽  
Module Performance ◽  
Grid Level ◽  
Selection Of ◽  
Spiral Wound

A performance simulator of spiral wound membrane (SWM) modules used for desalination is a valuable tool for process design and optimization. The existing state-of-the-art mesoscale simulation tools account for the spatial non-uniformities created by the operation itself (flow, pressure, and concentration distributions) but they assume uniform membrane properties. However, experimental studies reveal that membrane properties are by no means uniform. Therefore, the need arises to account for this non-uniformity in simulation tools thus enabling a systematic assessment of its impact, among other benefits; a first step toward this goal is presented herein. In particular, the issue of an organic fouling layer growing on a membrane with non-uniform permeability is analyzed. Several mathematical treatments of the problem are discussed and indicative results are presented. The concept of fouling layer thickness probability density function is suggested as a means to introduce sub-grid level calculations in existing simulation tools. The analysis leads to the selection of an appropriate methodology to incorporate this effect in the dynamic simulation of fouling layer evolution at the membrane-sheet scale.

Optimisation of Design and Operation Parameters for Multicomponent Separation via Improved Lewis-Matheson Method

2017 ◽  
Vol 12 (4) ◽  
Author(s):  
Ching Ching Tiong ◽  
Jobrun Nandong
Keyword(s):  
Design Procedure ◽  
Problem Formulation ◽  
Computational Time ◽  
Separation And Purification ◽  
Efficient Design ◽  
Feed Composition ◽  
Design And Optimization ◽  
Purification Technique ◽  
Stage Matching ◽  
Matching Criteria

AbstractDistillation is the most commonly used separation and purification technique in the chemical and allied industries despite that it has been known as the most energy-consuming unit in process industry. The need to reduce this energy consumption has become one of the important focuses in the efficient design and optimization of distillation processes. In the present work, we propose an improved Lewis-Matheson stage-by-stage procedure by incorporating the Fenske equation to enhance the estimation of the non-key component distributions, and thus avoiding infeasible solutions to the stage-by-stage system of equations of mass and energy balances. A modified theta method is also included in the design procedure to satisfy the feed stage matching criteria which help reduces the computational time while increasing the accuracy of feed composition matching. By using the proposed modified Lewis-Matheson method, an optimization is conducted in Matlab environment where the problem formulation takes into account both sets of design and operating parameters with specified product purity as the constraint. The objective function of the optimization is to minimize the Total Annualized Cost (TAC), which includes both capital and operating costs. The effectiveness of the proposed design procedure is demonstrated using an industrial-scale natural gas liquids (NGLs) depropanizer fractionation unit.

scholarly journals Efficient design and optimization of bio-photonic sensing cells (BICELLs) for label free biosensing

2013 ◽  
Vol 176 ◽  
pp. 753-760 ◽  
Author(s):  
Álvaro Lavín ◽  
Rafael Casquel ◽  
Francisco J. Sanza ◽  
María Fé Laguna ◽  
Miguel Holgado
Keyword(s):  
Label Free ◽  
Efficient Design ◽  
Design And Optimization

scholarly journals Evolutionary design of magnetic soft continuum robots

2021 ◽  
Vol 118 (21) ◽  
pp. e2021922118
Author(s):  
Liu Wang ◽  
Dongchang Zheng ◽  
Pablo Harker ◽  
Aman B. Patel ◽  
Chuan Fei Guo ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Magnetic Particles ◽  
Permanent Magnets ◽  
Complex Geometry ◽  
Nonuniform Distribution ◽  
Evolutionary Design ◽  
Efficient Design ◽  
Continuum Robots ◽  
End Effector ◽  
Design And Optimization

Worldwide cardiovascular diseases such as stroke and heart disease are the leading cause of mortality. While guidewire/catheter-based minimally invasive surgery is used to treat a variety of cardiovascular disorders, existing passive guidewires and catheters suffer from several limitations such as low steerability and vessel access through complex geometry of vasculatures and imaging-related accumulation of radiation to both patients and operating surgeons. To address these limitations, magnetic soft continuum robots (MSCRs) in the form of magnetic field–controllable elastomeric fibers have recently demonstrated enhanced steerability under remotely applied magnetic fields. While the steerability of an MSCR largely relies on its workspace—the set of attainable points by its end effector—existing MSCRs based on embedding permanent magnets or uniformly dispersing magnetic particles in polymer matrices still cannot give optimal workspaces. The design and optimization of MSCRs have been challenging because of the lack of efficient tools. Here, we report a systematic set of model-based evolutionary design, fabrication, and experimental validation of an MSCR with a counterintuitive nonuniform distribution of magnetic particles to achieve an unprecedented workspace. The proposed MSCR design is enabled by integrating a theoretical model and the genetic algorithm. The current work not only achieves the optimal workspace for MSCRs but also provides a powerful tool for the efficient design and optimization of future magnetic soft robots and actuators.

scholarly journals Crashworthiness of Traffic Light Steel Poles in Vehicle Collisions

2021 ◽  
Author(s):  
Preveen Kumar Siriya
Keyword(s):  
Field Testing ◽  
Element Model ◽  
Side Impact ◽  
Product Development Process ◽  
Efficient Design ◽  
Traffic Light ◽  
Simulation Tools ◽  
Vehicle Occupant ◽  
Vehicle Impact ◽  
Impact Side

Vehicle crashworthiness focuses on the capability of a vehicle to protect its occupants in a collision. The Canadian Highway Bridge Design Code [2] does not provide design criteria for vehicle occupant safety except by field testing. The test-guided product development process is very costly and time-consuming. As an alternative, computer simulation tools are increasingly being used. The aim of this research is to contribute to the efficient design of traffic light poles by developing an experimentally calibrated, computer-based, finite-element model using LSDYNA [54], capable of predicting accurately their response when subjected to vehicle impact. The case of steel pole embedded directly in soil was proved to be strong enough to offer protection under service loading and vehicle impact. Side impact crashed proved to be more severe for the vehicle occupant as a result of the weak structural performance of the side doors of the vehicle. Based on this an innovative pole supported on a hard rubber base is introduced to improve crashworthiness.

“Design and Optimization of Solar Absorber Tube Using CFD Analysis”

2018 ◽  
Vol 4 (3) ◽  
pp. 6
Author(s):  
Arun Jyoti ◽  
Dr. Prashant Baredar ◽  
Dr. Hitesh Kumar ◽  
Asst. Prof. Ambuj Kumar
Keyword(s):  
Literature Review ◽  
Solar Collector ◽  
Optimization Technique ◽  
Research Work ◽  
Parabolic Trough ◽  
Design And Optimization ◽  
Simulation Tools ◽  
Computational Fluids Dynamics ◽  
Large Scope ◽  
Parabolic Trough Solar Collector

Parabolic trough solar collector is a solar thermal collector which works on solar energy, the efficiency of this collector depends on the thermal energy of sun. The main objective of this work to present an upto date literature review on the parabolic trough solar collector. During the literature survey from the various research paper related to parabolic trough solar collector it has been observed that there is a lot of research work have been done in the same field and still there is a large scope to work on the parabolic trough solar collector. From the literature review it has been also observed that many authors worked on numerical as well as experimental setups, many of them use various optimization technique which was validate by various simulation tools like ANSYS, computational fluids dynamics tool Fluent and many more. 

scholarly journals Crashworthiness of Traffic Light Steel Poles in Vehicle Collisions

2021 ◽  
Author(s):  
Preveen Kumar Siriya
Keyword(s):  
Field Testing ◽  
Element Model ◽  
Side Impact ◽  
Product Development Process ◽  
Efficient Design ◽  
Traffic Light ◽  
Simulation Tools ◽  
Vehicle Occupant ◽  
Vehicle Impact ◽  
Impact Side

Vehicle crashworthiness focuses on the capability of a vehicle to protect its occupants in a collision. The Canadian Highway Bridge Design Code [2] does not provide design criteria for vehicle occupant safety except by field testing. The test-guided product development process is very costly and time-consuming. As an alternative, computer simulation tools are increasingly being used. The aim of this research is to contribute to the efficient design of traffic light poles by developing an experimentally calibrated, computer-based, finite-element model using LSDYNA [54], capable of predicting accurately their response when subjected to vehicle impact. The case of steel pole embedded directly in soil was proved to be strong enough to offer protection under service loading and vehicle impact. Side impact crashed proved to be more severe for the vehicle occupant as a result of the weak structural performance of the side doors of the vehicle. Based on this an innovative pole supported on a hard rubber base is introduced to improve crashworthiness.

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