1-20 of 31
Lei Xu
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles

Effect of Different Types of Ossification of the Posterior Longitudinal Ligament on the Dynamic Biomechanical Response of the Spinal Cord: A Finite Element Analysis

Liang-dong Zheng, Yu-ting Cao, Yi-ting Yang, Meng-lei Xu, Hui-zi Zeng, Shi-jie Zhu, Chen Jin, Qing Yuan, Rui Zhu
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. December 2023, 145(12): 121002.
Paper No: BIO-23-1119
https://doi.org/10.1115/1.4063194
Published Online: September 4, 2023
View Article titled, Effect of Different Types of Ossification of the Posterior Longitudinal Ligament on the Dynamic Biomechanical Response of the Spinal Cord: A Finite Element Analysis
Open the PDF for Effect of Different Types of Ossification of the Posterior Longitudinal Ligament on the Dynamic Biomechanical Response of the Spinal Cord: A Finite Element Analysis in another window
Topics: Biomechanics, Spinal cord, Cervical spine, Stress, Compression, Finite element analysis
Proceedings Papers

Using Actor-Critic Reinforcement Learning for Control and Flight Formation of Quadrotors

Edgar Torres, Lei Xu, Tohid Sardarmehni
Proc. ASME. IMECE2022, Volume 5: Dynamics, Vibration, and Control, V005T07A036, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-97224
https://doi.org/10.1115/IMECE2022-97224
View Paper titled, Using Actor-Critic Reinforcement Learning for Control and Flight Formation of Quadrotors
Open the PDF for Using Actor-Critic Reinforcement Learning for Control and Flight Formation of Quadrotors in another window
Topics: Flight, Reinforcement learning
Proceedings Papers

Open-Loop Optimal Control for Tracking a Reference Signal With Approximate Dynamic Programming

Jorge A. Diaz, Lei Xu, Tohid Sardarmehni
Proc. ASME. IMECE2022, Volume 5: Dynamics, Vibration, and Control, V005T07A064, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-96769
https://doi.org/10.1115/IMECE2022-96769
View Paper titled, Open-Loop Optimal Control for Tracking a Reference Signal With Approximate Dynamic Programming
Open the PDF for Open-Loop Optimal Control for Tracking a Reference Signal With Approximate Dynamic Programming in another window
Topics: Artificial neural networks, Dynamic programming, Optimal control, Signals
Proceedings Papers

Quadcopter Control Using Single Network Adaptive Critics

Alberto Velazquez, Lei Xu, Tohid Sardarmehni
Proc. ASME. IMECE2022, Volume 5: Dynamics, Vibration, and Control, V005T07A035, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-96834
https://doi.org/10.1115/IMECE2022-96834
View Paper titled, Quadcopter Control Using Single Network Adaptive Critics
Open the PDF for Quadcopter Control Using Single Network Adaptive Critics in another window
Topics: Adaptive dynamics, Artificial neural networks, Computer programming, Control equipment, Dynamics (Mechanics), Feedback, Least squares approximations, Nonlinear systems, Optimal control, Reinforcement learning
Journal Articles

Adjoint Analysis of Plane Poiseuille Flow Global and Convective Stability

Lei Xu, Yuxin Zhang
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2022, 144(11): 111301.
Paper No: FE-22-1191
https://doi.org/10.1115/1.4054958
Published Online: July 19, 2022
View Article titled, Adjoint Analysis of Plane Poiseuille Flow Global and Convective Stability
Open the PDF for Adjoint Analysis of Plane Poiseuille Flow Global and Convective Stability in another window
Topics: Eigenvalues, Flow (Dynamics), Poiseuille flow, Stability
Journal Articles

The Stability of Plane Poiseuille Flow in a Finite-Length Channel

Lei Xu, Zvi Rusak
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2022, 144(5): 051302.
Paper No: FE-21-1220
https://doi.org/10.1115/1.4052643
Published Online: January 12, 2022
View Article titled, The Stability of Plane Poiseuille Flow in a Finite-Length Channel
Open the PDF for The Stability of Plane Poiseuille Flow in a Finite-Length Channel in another window
Topics: Boundary-value problems, Flow (Dynamics), Poiseuille flow, Stability, Eigenvalues
Journal Articles

Effects of Process Variants on Residual Stresses in Wire Arc Additive Manufacturing of Aluminum Alloy 5183

Karan S. Derekar, Bilal Ahmad, Xiang Zhang, Sameehan S. Joshi, Jonathan Lawrence, Lei Xu, Geoff Melton, Adrian Addison
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. July 2022, 144(7): 071005.
Paper No: MANU-21-1355
https://doi.org/10.1115/1.4052930
Published Online: December 8, 2021
View Article titled, Effects of Process Variants on Residual Stresses in Wire Arc Additive Manufacturing of Aluminum Alloy 5183
Open the PDF for Effects of Process Variants on Residual Stresses in Wire Arc Additive Manufacturing of Aluminum Alloy 5183 in another window
Topics: Additive manufacturing, Aluminum alloys, Residual stresses, Stress, Stress concentration, Temperature, Tension, Wire, Yield strength, Compressive stress
Proceedings Papers

A Convolution Neural Network Based Fault Diagnosis Model for Slug Flow Condition of Oil-Gas Separator

Jiaquan Liu, Lei Hou, Xin Wang, Lei Xu, Rui Zhang, Kai Yang
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T07A001, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61681
https://doi.org/10.1115/PVP2021-61681
View Paper titled, A Convolution Neural Network Based Fault Diagnosis Model for Slug Flow Condition of Oil-Gas Separator
Open the PDF for A Convolution Neural Network Based Fault Diagnosis Model for Slug Flow Condition of Oil-Gas Separator in another window
Topics: Artificial neural networks, Fault diagnosis, Slug flows
Journal Articles

Curved Ballasted Track–Vehicle Dynamic Interaction: Effects of Curve Radius and Track Structural Nonlinearity

Liu Pan, Lei Xu, Xianmai Chen, Zixu Zhu
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. July 2021, 16(7): 071004.
Paper No: CND-20-1447
https://doi.org/10.1115/1.4050953
Published Online: May 27, 2021
View Article titled, Curved Ballasted Track–Vehicle Dynamic Interaction: Effects of Curve Radius and Track Structural Nonlinearity
Open the PDF for Curved Ballasted Track–Vehicle Dynamic Interaction: Effects of Curve Radius and Track Structural Nonlinearity in another window
Topics: Displacement, Rails, Vehicles, Deformation
Proceedings Papers

A Hybrid Method Based on SVM Integrated Improved PSO Algorithm for Electrical Energy Consumption Forecasting of Crude Oil Pipeline

Lei Xu, Lei Hou, Zhenyu Zhu, Yu Li, Ting Lei
Proc. ASME. IPC2020, Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, V003T04A033, September 28–30, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IPC2020-9434
https://doi.org/10.1115/IPC2020-9434
View Paper titled, A Hybrid Method Based on SVM Integrated Improved PSO Algorithm for Electrical Energy Consumption Forecasting of Crude Oil Pipeline
Open the PDF for A Hybrid Method Based on SVM Integrated Improved PSO Algorithm for Electrical Energy Consumption Forecasting of Crude Oil Pipeline in another window
Topics: Algorithms, Crude oil, Energy consumption, Particle swarm optimization, Pipelines, Support vector machines
Proceedings Papers

A Hybrid PSO-BPNN Model Approach for Crude Oil Pipeline Electrical Energy Consumption Forecasting

Lei Xu, Lei Hou, Yu Li, Zhenyu Zhu, Jiaquan Liu, Ting Lei
Proc. ASME. PVP2020, Volume 8: Operations, Applications, and Components, V008T08A025, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21227
https://doi.org/10.1115/PVP2020-21227
View Paper titled, A Hybrid PSO-BPNN Model Approach for Crude Oil Pipeline Electrical Energy Consumption Forecasting
Open the PDF for A Hybrid PSO-BPNN Model Approach for Crude Oil Pipeline Electrical Energy Consumption Forecasting in another window
Topics: Artificial neural networks, Crude oil, Energy consumption, Particle swarm optimization, Pipelines, Principal component analysis
Proceedings Papers

Mid-Term Energy Consumption Prediction of Crude Oil Pipeline Pump Unit Based on GSCV-SVM

Lei Xu, Lei Hou, Yu Li, Zhenyu Zhu, Jiaquan Liu, Ting Lei
Proc. ASME. PVP2020, Volume 8: Operations, Applications, and Components, V008T08A023, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21135
https://doi.org/10.1115/PVP2020-21135
View Paper titled, Mid-Term Energy Consumption Prediction of Crude Oil Pipeline Pump Unit Based on GSCV-SVM
Open the PDF for Mid-Term Energy Consumption Prediction of Crude Oil Pipeline Pump Unit Based on GSCV-SVM in another window
Topics: Crude oil, Energy consumption, Pipelines, Pumps, Support vector machines
Journal Articles

Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water

Kai Wang, Ke Li, Wensheng Zhou, Guojin Zhu, Yue Pan, Hongjun Fan, Yufei Gao, Jing Tang, Lei Xu, Qing You
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. June 2020, 142(6): 063004.
Paper No: JERT-19-1440
https://doi.org/10.1115/1.4045833
Published Online: January 7, 2020
View Article titled, Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water
Open the PDF for Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water in another window
Topics: Water
Journal Articles

Cross Wind Effects on Vehicle–Track Interactions: A Methodology for Dynamic Model Construction

Lei Xu, Wanming Zhai
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. March 2019, 14(3): 031003.
Paper No: CND-18-1384
https://doi.org/10.1115/1.4042142
Published Online: January 11, 2019
View Article titled, Cross Wind Effects on Vehicle–Track Interactions: A Methodology for Dynamic Model Construction
Open the PDF for Cross Wind Effects on Vehicle–Track Interactions: A Methodology for Dynamic Model Construction in another window
Topics: Vehicles, Wind, Rails, Wheels
Proceedings Papers

A Three-Dimensional Constitutive Model for Polycrystalline Shape Memory Alloys Under Large Strains Combined With Large Rotations

Lei Xu, Theocharis Baxevanis, Dimitris Lagoudas
Proc. ASME. SMASIS2018, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies, V002T02A007, September 10–12, 2018
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2018-8050
https://doi.org/10.1115/SMASIS2018-8050
View Paper titled, A Three-Dimensional Constitutive Model for Polycrystalline Shape Memory Alloys Under Large Strains Combined With Large Rotations
Open the PDF for A Three-Dimensional Constitutive Model for Polycrystalline Shape Memory Alloys Under Large Strains Combined With Large Rotations in another window
Topics: Constitutive equations, Shape memory alloys, Deformation, Actuators, Torque, Active materials, Alloys, Creep, Density, Intermetallic compounds
Proceedings Papers

CUDA Based Parallel Computation for Gauss Elimination Method

Xiao Liu, Lei Xu
Proc. ASME. OMAE2018, Volume 3: Structures, Safety, and Reliability, V003T02A077, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78479
https://doi.org/10.1115/OMAE2018-78479
View Paper titled, CUDA Based Parallel Computation for Gauss Elimination Method
Open the PDF for CUDA Based Parallel Computation for Gauss Elimination Method in another window
Topics: Computation, Algorithms, Computer software, Graphics processing units, Ocean engineering
Journal Articles

A Three-Dimensional Dynamic Model for Railway Vehicle–Track Interactions

Xianmai Chen, Xiangyun Deng, Lei Xu
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. July 2018, 13(7): 071006.
Paper No: CND-17-1579
https://doi.org/10.1115/1.4040254
Published Online: May 30, 2018
View Article titled, A Three-Dimensional Dynamic Model for Railway Vehicle–Track Interactions
Open the PDF for A Three-Dimensional Dynamic Model for Railway Vehicle–Track Interactions in another window
Topics: Rails, Vehicles, Wheels, Stiffness, Damping
Journal Articles

Global Sensitivity Analysis for Vehicle–Track Interactions: Special Attention on Track Irregularities

Lei Xu, Wanming Zhai, Jianmin Gao
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. March 2018, 13(3): 031007.
Paper No: CND-17-1407
https://doi.org/10.1115/1.4038820
Published Online: January 10, 2018
View Article titled, Global Sensitivity Analysis for Vehicle–Track Interactions: Special Attention on Track Irregularities
Open the PDF for Global Sensitivity Analysis for Vehicle–Track Interactions: Special Attention on Track Irregularities in another window
Topics: Rails, Sensitivity analysis, Vehicles, Wheels, Potential energy, Wavelength, Time-frequency analysis
Journal Articles

A Scale-Adaptive Turbulence Model Based on the k -Equation and Recalibrated Reynolds Stress Constitutive Relation

Yang Zhang, Jun-Qiang Bai, Jing-Lei Xu
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2016, 138(6): 061203.
Paper No: FE-15-1141
https://doi.org/10.1115/1.4032535
Published Online: March 24, 2016
View Article titled, A Scale-Adaptive Turbulence Model Based on the k -Equation and Recalibrated Reynolds Stress Constitutive Relation
Open the PDF for A Scale-Adaptive Turbulence Model Based on the k -Equation and Recalibrated Reynolds Stress Constitutive Relation in another window
Topics: Airfoils, Flow (Dynamics), Turbulence, Wings, Flat plates, Pressure
Journal Articles

Nonlinear Control of Axisymmetric Swirling Flows in a Long Finite-Length Pipe

Lei Xu, Zvi Rusak, Shixiao Wang, Steve Taylor
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2016, 138(2): 021201.
Paper No: FE-14-1503
https://doi.org/10.1115/1.4031255
Published Online: August 31, 2015
View Article titled, Nonlinear Control of Axisymmetric Swirling Flows in a Long Finite-Length Pipe
Open the PDF for Nonlinear Control of Axisymmetric Swirling Flows in a Long Finite-Length Pipe in another window
Topics: Feedback, Flow (Dynamics), Pipes, Swirling flow, Vortices, Dynamics (Mechanics)