Hamid M. Lankarani
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View article: Development and evaluation of numerical models of an aircraft seat assembly and occupant for the simulation of dynamic certification tests
Development and evaluation of numerical models of an aircraft seat assembly and occupant for the simulation of dynamic certification tests Open
Funding Information: First and second authors acknowledge Fundação para a Ciência e a Tecnologia, I.P., for its financial support via the project UIDB/00667/2020 and UIDP/00667/2020 (UNIDEMI). First author also acknowledges FCT-MCTES for f…
View article: Contact-impact events with friction in multibody dynamics: Back to basics
Contact-impact events with friction in multibody dynamics: Back to basics Open
Multibody dynamics deals with the study of mechanical systems composed of multiple bodies, whose motion interactions are governed by the presence of kinematic constraints and by the application of external forces. Frictional contact-impact…
View article: An Exact Analytical Solution for Dynamic Loads Generated by Lubricated Long Journal Bearings
An Exact Analytical Solution for Dynamic Loads Generated by Lubricated Long Journal Bearings Open
View article: Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints Open
Research on T-configuration aluminum constructions effectively decreases fuel consumption, increases strength, and develops aerial structures. In this research, the effects of friction stir welding (FSW) tool offset (TO) on Al–Mg–Si alloy …
View article: Examination and comparison of different methods to model closed loop kinematic chains using Lagrangian formulation with cut joint, clearance joint constraint and elastic joint approaches
Examination and comparison of different methods to model closed loop kinematic chains using Lagrangian formulation with cut joint, clearance joint constraint and elastic joint approaches Open
This work aims at presenting, in a comprehensive manner, several approaches to model and simulate closed loop topologies using the classical Lagrangian formulation. One of the great advantages of the Lagrangian approach is its simplicity a…
View article: Effects of materials positioning and tool rotational speed on metallurgical and mechanical properties of dissimilar modified friction stir clinching of AA5754-O and AA2024-T3 sheets
Effects of materials positioning and tool rotational speed on metallurgical and mechanical properties of dissimilar modified friction stir clinching of AA5754-O and AA2024-T3 sheets Open
The performance of the modified friction stir clinched and friction stir spot welded joints of AA5754-O and AA2024-T3 Al alloy was improved by investigating the impact of material flow influencing parameters such as material positioning an…
View article: Friction Spot Extrusion Welding on Dissimilar Materials AA2024-T3 to AA5754-O: Effect of Shoulder Plunge Depth
Friction Spot Extrusion Welding on Dissimilar Materials AA2024-T3 to AA5754-O: Effect of Shoulder Plunge Depth Open
View article: Investigation of mechanical properties of AA6082-T6/AA6063-T6 friction stir lap welds
Investigation of mechanical properties of AA6082-T6/AA6063-T6 friction stir lap welds Open
A study is conducted to investigate the microstructure and mechanical properties of lap joints produced by friction stir welding (FSW) between 3.5 mm thick sheets of automotive aluminum alloys AA6082-T6 with AA6063-T6. The FSW tool used in…
View article: Monitoring of the human body and brain behavior using optical motion capture system and EEG utilizing horseback riding simulator: an extended case study
Monitoring of the human body and brain behavior using optical motion capture system and EEG utilizing horseback riding simulator: an extended case study Open
[Purpose] Hippotherapy is an unusual type of treatment and has been found to be effective for diseases of the musculoskeletal system and rehabilitation. Horseback riding simulator is used as a beneficial alternative to the real horse with …
View article: Real-Time Human Body and Brain Monitoring During Horseback Riding Simulator by Means of Inertial Motion Capture and EEG Systems
Real-Time Human Body and Brain Monitoring During Horseback Riding Simulator by Means of Inertial Motion Capture and EEG Systems Open
One type of effective muscular disorders therapy is horseback riding. The main objective of the present study is developing a physiotherapeutic simulator (concept proof) instead of a real horse though employing the Electroencephalography (…
View article: Design of a Novel Task-Based Knee Rehabilitation Exoskeleton Device
Design of a Novel Task-Based Knee Rehabilitation Exoskeleton Device Open
This study is aimed at the design of a novel task-based knee rehabilitation device. The desired trajectories of the knee have been obtained through a vision-based motion capture system. The collected experimental kinematic data has been us…
View article: A comprehensive survey of the analytical, numerical and experimental methodologies for dynamics of multibody mechanical systems with clearance or imperfect joints
A comprehensive survey of the analytical, numerical and experimental methodologies for dynamics of multibody mechanical systems with clearance or imperfect joints Open
"Available online 19 December 2017"
View article: A Study on the Dynamics of Spatial Mechanisms With Frictional Spherical Clearance Joints
A Study on the Dynamics of Spatial Mechanisms With Frictional Spherical Clearance Joints Open
An investigation on the dynamic modeling and analysis of spatial mechanisms with spherical clearance joints including friction is presented. For this purpose, the ball and the socket, which compose a spherical joint, are modeled as two ind…
View article: Modeling of the Weld Strength in Spot Weld Using Regression Analysis of the Stress Parameters based on the Simulation Study
Modeling of the Weld Strength in Spot Weld Using Regression Analysis of the Stress Parameters based on the Simulation Study Open
To enhance the performance of spot weld joints, various improvement methods are used to strengthen the properties of welded joints. Spot welding process is very well suited for welding of various steels grades. Regression analysis is the s…
View article: Sensitivity analysis of friction force model parameters in multibody dynamics
Sensitivity analysis of friction force model parameters in multibody dynamics Open
A sensitivity analysis of the parameters of the most relevant friction force models for multibody dynamics is provided in this work. For this, Dahl, Reset Integrator, LuGre and Gonthier models are revisited. The classic single degree-of-fr…
View article: Influence of the Hip Joint Modeling Approaches on the Kinematics of Human Gait
Influence of the Hip Joint Modeling Approaches on the Kinematics of Human Gait Open
The influence of the hip joint formulation on the kinematic response of the model of human gait is investigated throughout this work. To accomplish this goal, the fundamental issues of the modeling process of a planar hip joint under the f…