Håkan Johansson
Håkan Johansson is a professor in mechanical systems at the division of Dynamics. Håkan’s main research focus is computational methods to analyze controlled mechanical systems. These methods are used to develop condition monitoring systems, optimization tools to improve performance and for indirect determination of unknown parameters or loads. Example of applications are wind turbines, heavy vehicle drivelines and wave propagation in soft biological tissues.
Showing 97 publications
Mitigation of transient torque reversals in indirect drive wind turbine drivetrains
Transient torque reversals in indirect drive wind turblnes
Model-Based Remote Health Monitoring of Ballast Conditions in Railway Crossing Panels
Transient torque reversals in indirect drive wind turbines
Condition Monitoring of Railway Crossing Geometry via Measured and Simulated Track Responses
A numerical study on the safety belt-to-pelvis interaction
Site-specific analysis of on wind turbines in complex terrain: A case study
Multibody dynamic modelling of a direct wind turbine drive train
Analysis of wind turbines under harsh operation conditions
A Priori Assessment of Adipose Tissue Mechanical Testing by Global Sensitivity Analysis
Failure modes and optimal performance of a generic synchronizer
Vibration dynamics in non-linear dual mass flywheels for heavy-duty trucks
Global Sensitivity Analysis of High Speed Shaft Subsystem of a Wind Turbine Drive Train
VERIFICATION OF A TRANSMISSION SYNCHRONIZATION MODEL
Multibody dynamic modelling of a direct wind turbine drive train
Dynamics and Pareto Optimization of a Generic Synchronizer Mechanism
Modeling the mechanical behavior of adipose tissue
On multi-objective topology optimization and tracing of Pareto-optimal structures
Modelling of Heavy Vehicle Transmission Synchronizer using Constrained Lagrangian Formalism
VIBRATION DYNAMICS OF A WIND TURBINE DRIVE TRAIN HIGH SPEED SUBSYSTEM: MODELING AND VALIDATION
Constrained Lagrangian Formulation for Modelling and Analysis of Transmission Synchronizers
Review on wind turbines with focus on drive train system dynamics
Vibration dynamics of a wind turbine drive train high speed subsystem: Modelling and validation
Statistical analysis of fatigue loads in a direct drive wind turbine
Statistical analysis of fatigue loads in a direct drive wind turbine
A posteriori error estimation of target control problems: Weak formulation of inequality constraints
A two-scale finite element formulation of Stokes flow in porous media
Homogenization of Stokes Flow in Porous Media
Load identification for a rolling disc: finite element discretization and virtual calibration
Wind turbine drive train vibration with focus on gear dynamics under nondeterministic loads
a posteriori error estimation and adaptivity for optimal steering of mechanical systems
a posteriori error estimation and adaptivity for optimal steering of mechanical systems
Multiscale modeling of porous media
Application-specific error control for parameter identification problems
Variationally consistent homogenization of seepage in porous media
MULTISCALE MODELING OF POROUS MEDIA
A posteriori error computation for optimal steering of mechanical systems
Computational modeling of the interlamellar spacing in pearlitic steel
A posteriori error estimation and adaptivity for target control problems
A posteriori error computation for optimal control of mechanical systems
A NUMERICAL FRAMEWORK FOR LOAD IDENTIFICATION WITH APPLICATION TO WHEEL-RAIL CONTACT FORCES
Optimal control of mechanical systems: a posteriori error computation and adaptivity
Application-Specific Error Control in Inverse Identification
Beräkningsinriktad matematikutbildning för maskinteknikprogrammet på Chalmers
Estimation of model errors in the calibration of viscoelastic material models
Error control for the coupled identification-simulation problem
Calibration of a porous visco(hyper)elastic model applied to brain tissue
Error-Controlled Identification of Viscoelastic Relaxation Spectra
A strategy for input estimation with sensitivity analysis
Identification of viscoelastic relaxation spectra with error control
Calibration of a class of non-linear viscoelasticity models with adaptive error control
Calibration of a biphasic model relevant to human brain tissue
Parameter identification with sensitivity assessment and error computation
Calibration of a large strain poro-viscoelastic model for brain tissue
Modeling and Calibration of Brain Tissue as Biphasic Porous Medium
A Mass Transport Model for Drying Wood under Isothermal Conditions
Identification of viscoelastic relaxation spectra from quasi-static test data
Error Computation for Parameter Identification Problems
Estimation of model and discretization errors in parameter identification problems
Sensitivity Analysis and Error Computation for Parameter Identification in Viscoelasticity
Parameter Identification for constitutive models with sensitivity assessment and error estimation
Numerical determination of diffusion coefficients in wood using data from CT-scanning
Calibration of the Bergström-Boyce model: Explicit expressions
Parameter identification in constitutive models via optimization with a posteriori error control
Calibration of a nonlinear viscoelasticity model with sensitivity assessment
Adaptive Finite Elements in Time: Application to Parameter Identification in Viscoelasticity
Adaptive Finite Elements for Parameter Identification: Application to Viscoelasticity
Calibration of a Nonlinear Elastic Composite With Goal-Oriented Error Control
A Mass-Transport Model for Drying Wood under Isothermal Conditions
A strategy for load identification with sensitivity analysis
Parameter Identification with Sensitivity Assessment for Rate-dependent Constitutive Relations
Aspects on Computational Meso-Macro-Scale Constitutive Modeling
Parameter identification for constitutive models with error control
Computational Constitutive Calibration for Groundwater Flow
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Showing 5 research projects
Control of singularity-induced vehicle motion during low-speed driving
Demonstrating the value of blade strain gauges for efficient wind tubine operations
Site-Adaptive Analysis Methods to Predict and Enhance Lifetime of Wind Turbines
Model based condition monitoring of switches and crossings (CHARMEC TS21)