Igor Rychlik

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Research areas: Spatial statistics, stochastic geometry and imaging; Reliability of engineering systemsMy primary research interests involve engineering applications of the theory of stochastic processes, especially in safety analysis of structures interacting with the environment, for example through wind pressure, ocean waves or temperature variations. Physical problems often leads to statistical questions that can be extracted and studied independently. My theoretical studies are centred on the description of local properties (wave characteristics) of smooth random processes and fields.

Source: chalmers.se

Projects

2011–2016

Optimized vehicles based on customer usage

Igor Rychlik Department of Mathematical Sciences, Mathematical Statistics
VINNOVA

2013–2018

Stochastics for big data and big systems - bridging local and global

Holger Rootzen Department of Mathematical Sciences, Mathematical Statistics
Bernt Wennberg Department of Mathematical Sciences
Rebecka Jörnsten Department of Mathematical Sciences, Mathematical Statistics
Igor Rychlik Department of Mathematical Sciences, Mathematical Statistics
Sergey Zuev Department of Mathematical Sciences, Mathematical Statistics
Johan Jonasson Department of Mathematical Sciences, Mathematics
Johan Wästlund Department of Mathematical Sciences, Mathematics
Jeffrey Steif Department of Mathematical Sciences, Mathematics
Olle Häggström Department of Mathematical Sciences, Mathematical Statistics
Robert Berman Department of Mathematical Sciences, Mathematics
Aila Särkkä Department of Mathematical Sciences, Mathematical Statistics
Knut and Alice Wallenberg Foundation

2011–2014

Virtual Measurement Campaign for Trucks - Road Roughness

Igor Rychlik Department of Mathematical Sciences, Mathematical Statistics
Fraunhofer-Gesellschaft Zur

2012–2017

Modeling environmental loads and structural responses

Igor Rychlik Department of Mathematical Sciences, Mathematical Statistics
Jonas Ringsberg Department of Shipping and Marine Technology, Marine Structures and Hydrodynamics
Swedish Research Council (VR)

3 publications exist
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Publications

2016

Distributions of spatial wave size for random fields

Podgorski Krzysztof, Igor Rychlik,
2nd International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP), Krakow, POLAND, JUN 13-15, 2016 , p. 1-8
Conference paper - peer reviewed
2016

Distributions at random events

Krzysztof Podgorski, Igor Rychlik,
2016 2ND INTERNATIONAL CONFERENCE ON EVENT-BASED CONTROL, COMMUNICATION, AND SIGNAL PROCESSING (EBCCSP), p. 1-8
Conference paper - peer reviewed
2016

Estimation of Weibull distribution for wind speeds along ship routes

Wengang Mao, Igor Rychlik,
Journal of Engineering for the Maritime Environment
Scientific journal article - peer reviewed
2016

Statistical models for the speed prediction of a container ship

Wengang Mao, Igor Rychlik, Jonas Wallin et al
Ocean Engineering. Vol. 126, p. 152-162
Scientific journal article - peer reviewed
2016

Spatial size of waves

Krzysztof Podgorski, Igor Rychlik,
Marine Structures. Vol. 50, p. 55 - 71
Scientific journal article - peer reviewed
2016

Sea state conditions for marine structures' analysis and model tests

E. M. Bitner-Gregersen, S. Dong, T. Fu et al
Ocean Engineering. Vol. 119, p. 309-322
Scientific journal article - peer reviewed
2016

Modelling roughness of road profiles on parallel tracks using roughness indicators

Pär Johannesson, Krzysztof Podgorski, Igor Rychlik et al
International Journal of Vehicle Design. Vol. 70 (2), p. 183-210
Scientific journal article - peer reviewed
2016

AR(1) time series with autoregressive gamma variance for road topography modeling

Pär Johannesson, Podgorski Krzysztof, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 43, p. 106-116
Scientific journal article - peer reviewed
2016

The Laplace multi-axial response model for fatigue analysis

Karlsson Johan, Podgorski Krzysztof, Igor Rychlik et al
International Journal of Fatigue. Vol. 85, p. 11-17
Scientific journal article - peer reviewed
2015

Slepian noise approach for Gaussian and Laplace moving average processes

Krys Podgorski, Igor Rychlik, Jonas Wallin et al
Extremes. Vol. 18 (4), p. 665-695
Scientific journal article - peer reviewed
2015

Spatio-temporal model for wind speed variability

Igor Rychlik,
Annales de l'I.S.U.P.. Vol. 59 (1-2), p. 25-56
Scientific journal article - peer reviewed
2015

Modeling extreme loads acting on steering components using driving events

Roza Maghsood, Igor Rychlik, Jonas Wallin et al
Probabilistic Engineering Mechanics. Vol. 41, p. 13-20
Scientific journal article - peer reviewed
2015

Load description and damage evaluation using vehicle independent driving events

Roza Maghsood, Igor Rychlik, P. Johannesson et al
Procedia Engineering. International Conference on Material and Component Performance under Variable Amplitude Loading, VAL 2015, Prague, Czech Republic, 23-26 March 2015. Vol. 101 (C), p. 268-276
Conference paper - peer reviewed
2014

Probabilistic Model for Wind Speed Variability Encountered by a Vessel

Igor Rychlik, Wengang Mao,
Natural Resources. Vol. 5 (13), p. 837-855
Scientific journal article - peer reviewed
2014

Laplace model for multi-axial responses in fatigue analysis of a cultivator frame

Johan Karlsson, Podgorski Krzysztof, Igor Rychlik et al
Proceedings of the 3rd International Commercial Vehicle Technology Symposium (CVT 2014) In Berns, K., Schneider, C., Dressler, K., Jörg, B., Kalmar, R., and Zolynski, G. (Eds.), Shaker Verlag, p. 141-150
Conference paper - peer reviewed
2014

Laplace models for describing road profiles

Pär Johannesson, Igor Rychlik,
Proceedings of the 3rd International Commercial Vehicle Technology Symposium (CVT 2014) In Berns, K., Schneider, C., Dressler, K., Jörg, B., Kalmar, R., and Zolynski, G. (Eds.),, Shaker Verlag, p. 99-108
Conference paper - peer reviewed
2014

Modelling of road profiles using roughness indicators

Pär Johannesson, Igor Rychlik,
International Journal of Vehicle Design. Vol. 66 (4), p. 317-346
Scientific journal article - peer reviewed
2014

Crack growth analysis in ship structures using spectral methods

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the 7th International Conference on Thin-Walled Structures (ICTWS2014) in Busan, Korea, 28th September - 2nd October, 2014, p. 9
Conference paper - peer reviewed
2014

Recent developments of ocean environmental description with focus on uncertainties

E. M. Bitner-Gregersen, S. K. Bhattacharya, I. K. Chatjigeorgiou et al
Ocean Engineering. Vol. 86, p. 26-46
Scientific journal article - peer reviewed
2014

Uncertainties in blade flutter damage prediction under random gust

S. Venkatesh, S. Sarkar, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 36, p. 45-55
Scientific journal article - peer reviewed
2014

Slepian models for moving averages driven by a non-Gaussian noise

K. Podgórski, Igor Rychlik, J. Wallin et al
Preprint
2014

Modelling roughness of road profiles on parallel tracks using roughness indicators

Pär Johannesson, Krzysztof Podgórski, Igor Rychlik et al
Preprint
2014

A model of significant wave height for reliability assessment of a ship

Krzysztof Podgorski, Igor Rychlik,
Journal of Marine Systems. Vol. 130, p. 109-123
Scientific journal article - peer reviewed
2013

Analysis of a fluid structure interaction system under random gust

S. Venkatesh, S. Sarkar, Igor Rychlik et al
Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013, p. 5651-5656
Conference paper - peer reviewed
2013

Laplace processes for describing road profiles.

Pär Johanesson, Igor Rychlik,
Procedia Engineering (5th International Conference on Fatigue Design, Fatigue Design 2013). Vol. 66, p. 464-473
Conference paper - peer reviewed
2013

Fatigue Cycle Counting

Igor Rychlik,
Encyclopedia of Tribology. Edited by Q. Jane Wang, Yip-Wah Chung., p. 1032-1041
Chapter in monograph, book
2013

A spatial-temporal model for wind speeds variability

Igor Rychlik, Amir Mustedanagic,
Preprint
2013

Crossing Statistics of Quadratic Transformations of LMA Processes

J. Jith, Sayan Gupta, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 33, p. 9-17
Scientific journal article - peer reviewed
2013

Laplace moving average model for multi-axial responses applied to fatigue analysis of a cultivator

Mats Kvarnström, Krzysztof Podgorski, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 34, p. 12-25
Scientific journal article - peer reviewed
2013

Note on modelling of fatigue damage rates for non-Gaussian stresses.

Igor Rychlik,
Fatigue & Fracture of Engineering Materials & Structures. Vol. 36 (8), p. 750-759
Scientific journal article - peer reviewed
2013

Uncertainties in damage prediction of wind turbine blade under random gust

S. Venkatesh, Sunetra Sarkar, Igor Rychlik et al
Preprint
2013

Notes on the Prediction of Extreme Ship Response

Wengang Mao, Igor Rychlik,
Journal of Offshore Mechanics and Arctic Engineering. Vol. 135 (2)
Scientific journal article - peer reviewed
2013

Multivariate generalized Laplace distribution and related random fields

T. J. Kozubowski, K. Podgorski, Igor Rychlik et al
Journal of Multivariate Analysis. Vol. 113 (Special Issue: SI), p. 59-72
Scientific journal article - peer reviewed
2012

COMMITTEE I.1 ENVIRONMENT

W. Fricke, R. Bronsart (Eds.), Igor Rychlik,
18th International Ship and Offshore Structures Congress (ISSC 2012)}
Conference paper - peer reviewed
2012

Local maxima in quadratic LMA processes

J. Jith, S. Gupta, Igor Rychlik et al
Proceedings of 11th ASCE Conference. 11th ASCE Joint Specialty Conference on Probabilistic Mechanics & Structural Reliability (EMI/PMC 2012), June 17-20 2012 Notre Dame, Indiana
Conference paper - peer reviewed
2012

Laplace moving average model for multi-axial responses in fatigue analysis of a cultivator

Mats Kvarnström, Krzysztof Podgorski, Igor Rychlik et al
Preprint
2012

Estimation of rainflow damages in container ships

Wengang Mao, Igor Rychlik,
Proceedings of the International Offshore and Polar Engineering Conference. 22nd International Offshore and Polar Engineering Conference, ISOPE-2012, Rhodes, 17-22 June 2012. Vol. 4, p. 688-694
Conference paper - peer reviewed
2012

Modelling of road profiles using roughness indicators

Pär Johannesson, Igor Rychlik,
Preprint
2012

Fatigue variation in ships due to the variability of environmental loads

Wengang Mao, Zhiyuan Li, Jonas Ringsberg et al
Proceedings of the ASME Thirty-first International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) in Rio de Janeiro, Brazil, July 1-6, 2012. Vol. 2, p. 145-154 (OMAE2012-83293)
Conference paper - peer reviewed
2012

Application of a ship-routeing fatigue model to case studies of 2800 TEU and 4400 TEU container vessels

Wengang Mao, Zhiyuan Li, Jonas Ringsberg et al
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. Vol. 226 (3), p. 222-234
Scientific journal article - peer reviewed
2012

Models for road surface roughness

K. Bogsjo, K. Podgorski, Igor Rychlik et al
Vehicle System Dynamics. Vol. 50 (5), p. 725-747
Scientific journal article - peer reviewed
2012

What is the potential of using ship fatigue routing in terms of fatigue life extension?

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the Twentysecond International Offshore and Polar Engineering Conference (ISOPE2012) on Rhodes, Greece, June 17-22, 2012. Vol. 4, p. 681-687
Conference paper - peer reviewed
2012

Estimation of Extreme Ship Response

Wengang Mao, Igor Rychlik,
Journal of Ship Research. Vol. 56 (1), p. 23-34
Scientific journal article - peer reviewed
2012

Theoretical development and validation of a fatigue model for ship routing

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Ships and Offshore Structures. Vol. 7 (4), p. 399-415
Scientific journal article - peer reviewed
2011

Development of a fatigue model useful in ship routing design

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
The Society of Naval Architects and Marine Engineers (SNAME) - TRANSACTIONS. Vol. 118 (1), p. 497-511
Scientific journal article - peer reviewed
2011

On estimation of extreme ship response using upcrossing spectrum

Wengang Mao, Igor Rychlik,
Advances in Marine Structures - Proceedings of the 3rd International Conference on Marine Structures, MARSTRUCT 2011, Hamburg, 28 - 30 March 2011, p. 49-58
Conference paper - peer reviewed
2011

Assessment of full-scale measurements with regard to extreme hogging and sagging condition of container ships

Wengang Mao, Jonas Ringsberg, Zhiyuan Li et al
Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011) in Rotterdam, the Netherlands, June 19-24, 2011. Vol. 2, p. 325-333 (OMAE2011-49456)
Conference paper - peer reviewed
2011

Dynamically evolving Gaussian spatial fields

Anastassia Baxevani, K. Podgorski, Igor Rychlik et al
Extremes. Vol. 14 (2), p. 223-251
Scientific journal article - peer reviewed
2011

Estimation of return values for significant wave height from satellite data

Igor Rychlik, J. Ryden, C. W. Anderson et al
Extremes. Vol. 14 (2), p. 167-186
Scientific journal article - peer reviewed
2011

Wiener chaos expansions for estimating rain-flow fatigue damage in randomly vibrating structures with uncertain parameters

S. Sarkar, S. Gupta, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 26 (2), p. 387-398
Scientific journal article - peer reviewed
2010

Approximation of crossing intensities for non linear responses subjected to non Gaussian loadings

Thomas Galtier, S. Gupta, Igor Rychlik et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 109-121
Conference paper - peer reviewed
2010

Multivariate generalized Laplace distributions and related random fields

Tomasz J Kozubowski, Krzysztof Podgórski, Igor Rychlik et al
Preprint
2010

Crossings of Second-order Response Processes Subjected to LMA Loadings

Thomas Galtier, Sayan Gupta, Igor Rychlik et al
Journal of Probability and Statistics. Vol. 2010, p. article ID 752452 [22 pages]
Scientific journal article - peer reviewed
2010

Safety Index of Fatigue Failure for Ship Structure Details

Wengang Mao, Igor Rychlik, Gaute Storhaug et al
Journal of Ship Research. Vol. Vol. 54 (No, 3), p. pp. 197-208
Scientific journal article - peer reviewed
2010

Development of a fatigue model useful in ship routing design

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Journal of Ship Research. Vol. 54 (4), p. 281-293
Scientific journal article - peer reviewed
2010

Models for road surface roughness

Klas Bogsjö, Krzysztof Podgórski, Igor Rychlik et al
Preprint
2010

Estimation of wave loading induced fatigue accumulation and extreme response of a container ship in severe seas

Wengang Mao, Zhiyuan Li, Thomas Galtier et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 133-141 (OMAE2010-20125)
Conference paper - peer reviewed
2010

The effect of whipping/springing on fatigue damage and extreme response of ship structures

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2010) in Shanghai, China, June 6-11, 2010. Vol. 2, p. 123-131 (OMAE2010-20124)
Conference paper - peer reviewed
2010

Estimation of extreme ship responses

Wengang Mao, Igor Rychlik,
Preprint
2009

Spatio-temporal statistical modelling of significant wave height

Anastassia Baxevani, S. Caires, Igor Rychlik et al
Environmetrics. Vol. 20 (1), p. 14-31
Scientific journal article - peer reviewed
2009

Uncertainty of estimated damage for random loads

Klas Bogsjö, Igor Rychlik,
Proc. of Second Int. Conf. on Variable Amplitude Loading, Darmstad/Germany
Conference paper - peer reviewed
2009

Fatigue Damage Uncertainty

Anders Bengtsson, Klas Bogsjö, Igor Rychlik et al
Robust Design Methodology for Reliability, p. 151-171
Chapter in monograph, book
2009

Distribution of wave crests in non-Gaussian sea

Ronald W. Butler, Ulla Machado, Igor Rychlik et al
Applied Ocean Research. Vol. 31 (1), p. 57-64
Scientific journal article - peer reviewed
2009

Uncertainty of estimated rainflow damage for random loads

Bengtsson Anders, Klas Bogsjö, Igor Rychlik et al
Marine Structures. Vol. 22 (2), p. 261-274
Scientific journal article - peer reviewed
2009

Vehicle fatigue damage caused by road irregularities

Klas Bogsjö, Igor Rychlik,
Fatigue & Fracture of Engineering Materials & Structures. Vol. 32 (5), p. 391-402
Scientific journal article - peer reviewed
2009

Uncertainty in fatigue life prediction of structures subject to Gaussian loads

Anders Bengtsson, Igor Rychlik,
Probabilistic Engineering Mechanics. Vol. 24 (2), p. 224-235
Scientific journal article - peer reviewed
2009

Fatigue damage assessment for a spectral model of non-Gaussian random loads

Sofia Åberg, Krys Podgorski, Igor Rychlik et al
Probabilistic Engineering Mechanics. Vol. 24 (4), p. 608-617
Scientific journal article - peer reviewed
2009

Note on the distribution of extreme wave crests

Anastassia Baxevani, Oskar Hagberg, Igor Rychlik et al
Preprint
2009

Crossings of second-order response processes subjected to LMA loadings

Thomas Galtier, Sayan Gupta, Igor Rychlik et al
Preprint
2009

Comparison between a fatigue model for voyage planning and measurements of a container vessel

Wengang Mao, Jonas Ringsberg, Igor Rychlik et al
Proceedings of the ASME Twenty-eighth International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2009) on Hawaii, USA, May 31 - June 5, 2009. Vol. 2, p. 173-180 (OMAE2009-79235)
Conference paper - peer reviewed
2009

Estimation of return values for significant wave height from satellite data

Igor Rychlik, Jesper Rydén, Clive Anderson et al
Preprint
2008

Envelope crossing distributions for Gaussian fields

Krzysztof Podgorski, Igor Rychlik,
Probabilistic Engineering Mechanics. Vol. 23 (4), p. 364-377
Scientific journal article - peer reviewed
2008

Uncertainty of Estimated Vehicle Damage for Random Loads

K. Bogsjö, Igor Rychlik,
Preprint
2008

Safety Index of Fatigue Failure for Ship Structure Details

Wengang Mao, Igor Rychlik, G. Storhaug et al
Preprint
2008

Envelope and its distributions

Krzysztof Podgórski, Igor Rychlik,
Preprint
2008

Dynamically Evolving Gaussian Spatial Fields

Anastassia Baxevani, Krzysztof Podgórski, Igor Rychlik et al
Preprint
2008

Palm distributions of wave characteristics in encountering seas

Sofia Åberg, Igor Rychlik, Ross Leadbetter et al
The Annals of Applied Probability. Vol. 18 (3), p. 1059-1084
Scientific journal article - peer reviewed
2008

Fatigue damage assessment for a spectral model of non-Gaussian random loads

Sofia Åberg, Krzysztof Podgórski, Igor Rychlik et al
Preprint
2008

Spatial models for the variability of the significant wave height on the world oceans

Anastassia Baxevani, Cedric Borgel, Igor Rychlik et al
International Journal of Offshore and Polar Engineering. Vol. 18 (1), p. 1-7
Scientific journal article - peer reviewed
2007

Rain-flow fatigue damage due to nonlinear combination of vector Gaussian loads

S. Gupta, Igor Rychlik,
Probabilistic Engineering Mechanics. Vol. 22 (3), p. 231-249
Scientific journal article - peer reviewed
2007

Fatigue life prediction for a vessel sailing the North Atlantic route

Anastassia Baxevani, Igor Rychlik,
Probabilistic Engineering Mechanics. Vol. 22, p. 159-169
Scientific journal article - peer reviewed
2007

Spatio-temporal modelling of significant wave height

Anastassia Baxevani, S. Caires, Igor Rychlik et al
Environmetrics. Vol. 19, p. 1-18
Scientific journal article - peer reviewed
2007

Palm distributions of wave characteristics in encountering seas

Sofia Åberg, Igor Rychlik,
Annals of Applied Probability
Scientific journal article - peer reviewed
2007

Doppler-shift approximations of encountered wave statistics

Sofia Åberg, Igor Rychlik,
Ocean Engineering. Vol. 34 (2300-2310)
Scientific journal article - peer reviewed
2007

Note on the intensity of encountered waves

Igor Rychlik, Sofia Åberg, Ross Leadbetter et al
Ocean Engineering. Vol. 34, p. 1561-1568
Scientific journal article - peer reviewed
2007

Envelope Crossing Distributions for Gaussian Fields

Krzysztof Podgórski, Igor Rychlik,
Preprint
2006

Spatio-temporal Statistical Modelling of Significant Wave Height

Anastassia Baxevani, S. Caires, Igor Rychlik et al
Preprint
2006

Fatigue Life Prediction for a Vessel Sailing the North Atlantic Route

Anastassia Baxevani, Igor Rychlik,
Preprint
2002

Distribution of wave crests in non-Gaussian sea

Ronald W. Butler, Ulla Machado, Igor Rychlik et al
Preprint
2002

Statistical properties of envelope field for Gaussian sea surface

Krzysztof Podgórski, Igor Rychlik,
Preprint
2002

Wave statistics in nonlinear random sea

Ulla Machado, Igor Rychlik,
Preprint
2002

How fast are the two-dimensional Gaussian waves?

Anastassia Baxevani, Krzysztof Podgórski, Igor Rychlik et al
Preprint