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1-20 of 20
Keywords: optimization
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Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. January 2025, 147(1): 011006.
Paper No: BIO-24-1158
Published Online: November 8, 2024
... nonsinusoidal flowrate, is formulated in terms of a stream function satisfying Laplace's equation, which can be integrated numerically to determine the spatial distribution of shear stresses for chambers of general planform. The results are used to optimize the design of a device with a hexagonal planform...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. April 2024, 146(4): 041002.
Paper No: BIO-23-1276
Published Online: February 7, 2024
...Shahab Azimi; Siamak Arzanpour This paper presents an innovative approach to the design optimization of valved holding chambers (VHCs), crucial devices for aerosol drug delivery. We present the design of an optimal cylindrical VHC body and introduce a novel valve based on particle impaction theory...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. September 2022, 144(9): 091004.
Paper No: BIO-21-1277
Published Online: March 30, 2022
... models are becoming popular in exploring which performance criterion is appropriate in the lifting phase. However, limited attempts have been performed on the other phases. The associated performance criterion for predicting other phases is unknown. In this study, an optimization model for predicting...
Journal Articles
Mirunalini Thirugnanasambandam, Tejas Canchi, Senol Piskin, Christof Karmonik, Ethan Kung, Prahlad G. Menon, Stephane Avril, Ender A. Finol
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. May 2021, 143(5): 051004.
Paper No: BIO-20-1288
Published Online: March 4, 2021
... to a corresponding variation in compliance throughout the cardiac cycle. The primary outcome of this work was the design optimization of the impedance elements, the quantitative characterization of the resistive and capacitive attributes of a compliant AAA phantom, and the exemplary use of MRI for flow visualization...
Topics:
Aneurysms,
Flow (Dynamics),
Phantoms,
Pressure,
Design,
Imaging,
Testing,
Kidney,
Magnetic resonance imaging
Includes: Supplementary data
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. February 2020, 142(2): 021001.
Paper No: BIO-18-1412
Published Online: October 7, 2019
... successfully optimize the arterial resistances to reconstruct the underlying velocity and pressure fields, providing a potential new means to improve the patient specificity of simulation-based technologies in this area. e-mail: stevemoore@au1.ibm.com 17 09 2018 10 06 2019 07 10 2019...
Journal Articles
Frederik Heinen, Søren N. Sørensen, Mark King, Martin Lewis, Morten Enemark Lund, John Rasmussen, Mark de Zee
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. June 2019, 141(6): 061005.
Paper No: BIO-18-1190
Published Online: April 25, 2019
...Frederik Heinen; Søren N. Sørensen; Mark King; Martin Lewis; Morten Enemark Lund; John Rasmussen; Mark de Zee The aim of this study was to generate a subject-specific musculoskeletal muscle model, based on isometric and isovelocity measurements of the whole lower extremity. A two-step optimization...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. November 2014, 136(11): 111007.
Paper No: BIO-14-1148
Published Online: September 12, 2014
... – 227 . 10.1016/j.clinbiomech.2005.10.012 [15] Chao , C. K. , Lin , J. , Putra , S. T. , and Hsu , C. C. , 2010 , “ A Neurogenetic Approach to a Multiobjective Design Optimization of Spinal Pedicle Screws ,” ASME J. Biomed. Eng. , 132 ( 9 ), p. 091006 . 10.1115/1.4001887...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. September 2013, 135(9): 091002.
Paper No: BIO-12-1296
Published Online: July 10, 2013
... model to estimate three-dimensional (3-D) digit kinematics. The solution model for each digit was based on assumptions of rigid-body interactions, specific degrees of freedom (DOFs) at each located joint, and the aligned coordinate system definitions. Techniques of inverse kinematics and optimization...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. January 2013, 135(1): 011002.
Paper No: BIO-11-1531
Published Online: December 27, 2012
.... However these studies also found suboptimal Y-graft performance in some patient models. The goal of this work is to determine whether performance can be improved in these models through further design optimization. Geometric and hemodynamic factors that influence the HFD have not been sufficiently...
Journal Articles
Mahdi Esmaily Moghadam, Francesco Migliavacca, Irene E. Vignon-Clementel, Tain-Yen Hsia, Alison L. Marsden, Modeling of Congenital Hearts Alliance (MOCHA) Investigators
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. May 2012, 134(5): 051002.
Published Online: May 25, 2012
... approach to model the heart and downstream circulation. This closed loop multidomain model is then integrated with a fully automated derivative-free optimization algorithm to obtain optimal shunt geometries with variable parameters of shunt diameter, anastomosis location, and angles. Three objective...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. March 2012, 134(3): 031002.
Published Online: March 20, 2012
... cadaver study by Erdemir et al. (“An Elaborate Data Set Characterizing the Mechanical Response of the Foot,” ASME J. Biomech. Eng., 131 (9), pp. 094502) was used for model development, optimization, and evaluation of material properties. A specimen-specific three-dimensional finite element representation...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. January 2012, 134(1): 011002.
Published Online: February 9, 2012
...) studies have only examined a small number of possible geometries to identify stent designs that reduce alterations in near-wall hemodynamics. Based on a previously described framework for optimizing cardiovascular geometries, we developed a methodology that couples CFD and three-dimensional shape...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2011, 133(9): 091001.
Published Online: October 4, 2011
... and aerodynamic forces. It is found that the skier’s postures, wind speed, and direction play a significant role. The wind condition affects the pressure force (the form drag) on the skier and makes it a resistance or thrust regarding wind directions. The optimized posture with a minimization of resistance under...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2011, 133(8): 081004.
Published Online: September 6, 2011
... strains (20%). The constitutive material parameters were determined using a coupled finite element-optimization algorithm that utilized stress relaxation indentation tests at relatively high strains. The proposed model incorporates the strain-hardening, tension-compression, permeability, and finite...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. January 2009, 131(1): 011007.
Published Online: November 20, 2008
... torques by optimizing for subject-specific BSP in the presence of characteristic and random errors in motion data measurements. A two-step optimization approach based on solving constrained nonlinear optimization problems was used. This approach minimized the differences between known ground reaction...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2008, 130(4): 041005.
Published Online: May 27, 2008
...-dimensional finite element model of the lumbar spine was developed from T12 to S1 and 117 pairs of trunk muscles (58 pairs of superficial muscles and 59 pairs of deep muscles) were considered. The follower load concept was mathematically represented as an optimization problem. The muscle forces required...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. October 2006, 128(5): 766–771.
Published Online: April 19, 2006
... and thickness of the cartilage layer. In this study, we developed a micro-indentation testing system to determine the compressive and biphasic mechanical properties of cartilage in the small joints of the mouse. A nonlinear optimization program employing a genetic algorithm for parameter estimation, combined...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. October 2006, 128(5): 641–646.
Published Online: April 14, 2006
...Jenni M. Buckley; Danny C. Leang; Tony M. Keaveny The sensitivity of vertebral body strength to the distribution of axial forces along the endplate has not been comprehensively evaluated. Using quantitative computed tomography-based finite element models of 13 vertebral bodies, an optimization...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2006, 128(4): 596–603.
Published Online: January 17, 2006
... are dependent on axis locations, making knowledge of these locations critical to accurate musculoskeletal modeling of the foot and ankle. The accuracy of a computational optimization method that fits a two-revolute model to measured motion was assessed using computer-generated data, a two-revolute mechanical...
Journal Articles
Journal:
Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2002, 124(4): 441–449.
Published Online: July 30, 2002
...Tony Farquhar; Jiang Zhou; William H. Wood We seek the ideal wheat stalk, which minimizes the structural mass required to support a fixed grain load in the presence of gravity and wind. The optimization search is restricted to stepped cylindrical stems of known moduli and density but unknown...