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impact_of_strongback_on_structure_w

abolghasem

2024

Abolghasemi, S.; Wierschem, N.E.; and Denavit, M.D., “Impact of strongback on structure with varying damper and stiffness irregularity arrangements,” Journal of Constructional Steel Research, 213, 2024.

clutching_inerter_damper_for_multi_

cuppaaaaaa

2024

Cupp, W. and Wierschem, N.E., “Clutching Inerter Damper for Multi-Degree-of-Freedom Base-Isolated Structures: A Numerical Study,” ASCE Journal of Engineering Mechanics, 2024.

dynamic_analysis_and_response_atten

sarkaraaaa

2024

Sarkar, A. T. and Wierschem, N.E., “Dynamic analysis and response attenuation of a two-degree-of-freedom structure with a variable inertia rotational mechanism subjected to ground excitation,” Engineering Structures, 2024.

influence_of_the_variable_inertia r

sarkaraaaa

2024

Sarkar, A. T. and Wierschem, N.E., “Influence of the variable inertia rotational mechanism on natural frequency and structural response,” Smart Structures and Systems, 2024.

evaluation_of_methods_of_design_for

talleyaaaa

2024

Talley, P. C.; Denavit, M.D.; and Wierschem, N.E., “Evaluation of Methods of Design for Strongback Braced Frames,” ASCE Journal of Structural Engineering, 2024.

experimental_study_on_the_impact_of

abolghasem

2024

Abolghasemi S.; Sarkar A.; Manson, C.; Wierschem, N.E.; and Denavit, M.D., “Experimental study on the impact of an elastic spine in a structure with inerter-based devices,” Proceedings of the 18th World Conference on Earthquake Engineering, Milan, Italy, June 30 – July 5, 2024.

investigation_of_the_impact_of_slid

sarkaraaaa

2024

Sarkar, A.T. and Wierschem, N.E., “Investigation of the impact of slider mass stiffness on the behavior of the variable inertia rotational mechanism for structural vibration mitigation,” 42nd 42nd International Modal Analysis Conference (IMAC), Orlando, FL, USA, January 29 – February 1, 2024.

performance_of_structures_with_clut

talleyaaaa

2023

Talley, P. C.; Sarkar, A. T. Wierschem, N.E.; and Denavit, M.D., “Performance of structures with clutch inerter dampers subjected to seismic excitation,” Bulletin of Earthquake Engineering, 2023.

development_of_small_scale_buckling

wierschema

2023

Wierschem, N.E.; Kirk, L.; and Denavit, M.D., “Development of small-scale buckling-restrained brace analog for physical experiments of structural systems,” Journal of Constructional Steel Research, 205, 2023.

proportioning_energy_dissipating_me

talleyaaaa

2023

Talley, P. C.; Denavit, M.D.; and Wierschem, N.E., “Proportioning energy-dissipating members in strongback braced frames,” Annual Stability Conference (ASC) / NASCC: The Steel Conference, Charlotte, NC, USA, April 12 – 14, 2023.

experimental_investigation_of_a_var

wierschema

2023

Wierschem, N.E. and Sarkar, A.T., “Approximate analytical investigation of the variable inertia rotational mechanism,” Extended Abstract, Third International Nonlinear Dynamics Conference, Rome, Italy June 18-22, 2023.

experimental_investigation_of_a_var

sarkaraaaa

2023

Sarkar, A.T.; Manson, C. A.; and Wierschem, N.E., “Experimental Investigation of a Variable Inertia Rotational Mechanism,” 41st International Modal Analysis Conference (IMAC), Austin, TX, USA, February 13 – 16, 2023.

optimization_of_the_variable_inerti

sarkaraaaa

2022

Sarkar, A. and Wierschem, N.E., “Optimization of the Variable Inertia Rotational Mechanism using Machine Learning,” 8th World Conference on Structural Control and Monitoring, Orlando, FL, USA, June 5 – 8, 2022.

vibration_mitigation_using_an_inert

abolghasem

2022

Abolghasemi, S.S.; Wierschem, N.E.; and Knight, J.B., “Vibration mitigation using an inerter-based isolation system,” Engineering Mechanics Institute Conference 2022, (Dynamics Committee Student Paper Competition), Baltimore, MD, USA, May 31 – June 3, 2022.

design_and_performance_evaluation_o

talleyaaaa

2021

Talley, P. C.; Javidialesaadi, A. Wierschem, N.E.; and Denavit, M.D., “Evaluation of steel building structures with inerter-based dampers under seismic loading,” Engineering Structures, 2021.

design_and_performance_evaluation_o

javidiales

2021

Javidialesaadi, A. and Wierschem, N.E., “Design and performance evaluation of inerter-based tuned mass dampers for a ground acceleration excited structure,” Soil Dynamics and Earthquake Engineering, 140, 106463, 2021.

passive_control_of_nonlinear_single

sarkaraaaa

2021

Sarkar, A. and Wierschem, N.E., “Evaluation of the added mass effect of nonlinear rotational inertial mechanisms in single-degree-of-freedom structures,” Engineering Mechanics Institute Conference 2021, (Dynamics Committee Student Paper Competition), May 25 – 28, 2021.

displacement_mitigation_oriented_de

zhaoaaaaaa

2020

Zhao, Z.; Zhang, R.; Wierschem, N.E.; Jiang, Y.; Pan, C., “Displacement-mitigation-oriented design and mechanism for inerter-based isolation system,” Journal of Vibration and Control, 2020.

dynamic_analysis_of_track_nonlinear

wangaaaaaa

2020

Wang, J.; Wang, B.; Wierschem, N.E.; and Spencer B. F. Jr., “Dynamic analysis of track nonlinear energy sinks subjected to simple and stochastic excitations,” Earthquake Engineering and Structural Dynamics, 49(9), 863-883, 2020.

numerical_study_of_the_symmetric_si

liaaaaaaaa

2020

Li, W.; Wierschem, N.E.; Li, X.; Yang, T.; and Brennan, M.J., “Numerical Study of the Symmetric Single-Sided Vibro-Impact Nonlinear Energy Sink for Rapid Response Reduction of a Cantilever Beam,” Nonlinear Dynamics, 100(2), 951-971, 2020.

simulating_offset_blast_loads_exper

wierschema

2020

Wierschem, N.E.; Luo, J.; Wilcoski, J.; Hubbard, S.; Fahnestock, L.A.; Spencer Jr., B.F.; McFarland, D.M.; Quinn, D.D.; Vakakis, A.F.; and Bergman, L.A. “Simulating offset blast loads experimentally using shake-table-generated ground motions: Method development and validation,” Structural Control and Health Monitoring, 27(2), 2020.

multi_objective_design_and_performa

wangaaaaaa

2020

Wang, J.; Wierschem, N.E.; Wang, B.; and Spencer B. F. Jr., “Multi-objective design and performance investigation of a high-rise building with track nonlinear energy sinks,” The Structural Design of Tall and Special Buildings, 29(2), 2020.

enhanced_base_isolation_system_util

wierschema

2020

Wierschem, N.E. and Javidialesaadi, A., “Enhanced base isolation system utilizing one-directional rotational inertia supplement devices,” Proceedings of the 17th World Conference on Earthquake Engineering, Sendai, Japan, 2020.

influence_of_state_switching_rotati

javidiales

2020

Javidialesaadi, A. and Wierschem, N.E., “Influence of state-switching rotational inertia dampers on the natural frequencies and response of structures,” 38th International Modal Analysis Conference (IMAC), Houston, TX, USA, February 10-13, 2020.

numerical_study_of_a_single-sided_v

liaaaaaaaa

2019

Li, W.; Wierschem, N.E.; Li, X.; Yang, T.; and Brennan, M.J., “Numerical study of a single-sided vibro-impact track nonlinear energy sink considering horizontal and vertical dynamics,” Journal of Vibration and Acoustics, 141(6), 2019.

energy_transfer_and_passive_control

javidiales

2019

Javidialesaadi, A. and Wierschem, N.E., “Energy Transfer and Passive Control of Single-degree-of-freedom Structures using a One-directional Rotational Inertia Viscous Damper,” Engineering Structures, 12, 2019.

an_inerter-enhanced_nonlinear_energ

javidiales

2019

Javidialesaadi, A. and Wierschem, N.E., “An Inerter-enhanced nonlinear energy sink,” Mechanical Systems and Signal Processing, 129, 449-454, 2019.

passive_control_of_nonlinear_single

javidiales

2019

Javidialesaadi, A.; Wierschem, N.E.; and Denavit, M.D., “Passive control of nonlinear single-degree-of-freedom structures utilizing tuned mass damper-inerter,” Engineering Mechanics Institute Conference 2019, (Dynamics Committee Student Paper Competition), Pasadena, CA, USA, June 18 – 21, 2019.

response_of_a_SDOF_system_with_an_i

javidiales

2019

Javidialesaadi, A. and Wierschem, N.E., “Response of a SDOF system with an inerter-based tuned mass damper subjected to non-stationary random excitation,” 37th International Modal Analysis Conference (IMAC), Orlando, FL, USA, January 28-31, 2019.

accelerated_innovation_development_

jonesaaaaa

2019

Jones, T.W. and Wierschem, N.E., “Accelerated Innovation Development of Laser Metrology for Steel Bridge Fabrication,” 2019.

on_the_energy_transfer_mechanism_of

liaaaaaaaa

2018

Li, W.; Wierschem, N.E.; Li, X.; and Yang, T., “On the energy transfer mechanism of the single-sided vibro-impact nonlinear energy sink,” Journal of Sound and Vibration, 437, 166-179, 2018.

three-element_vibration_absorber-in

javidiales

2018

Javidialesaadi, A. and Wierschem, N.E., “Three-element vibration absorber-inerter for passive control of single-degree-of-freedom structures,” Journal of Vibration and Acoustics, 140(6), 2018.

optimal_design_of_rotational_inerti

javidiales

2018

Javidialesaadi, A. and Wierschem, N.E., “Optimal design of rotational inertial double tuned mass dampers under random excitation,” Engineering Structures, 165, 412-421, 2018.

passive_structural_control_using_a_

javidiales

2018

Javidialesaadi, A. and Wierschem, N.E., “Passive Structural Control using a One-way Rotational Inertia Damper,” 7th World Conference on Structural Control and Monitoring, Qingdao, China, July 22-25, 2018.

decentralized_h2_optimization_of_ro

javidiales

2018

Javidialesaadi, A. and Wierschem, N.E., “Decentralized H2 Optimization of Rotational Inertia Double-tuned Mass Dampers,” Engineering Mechanics Institute Conference 2018, (SHMC Student Paper Competition), Cambridge, MA, USA, May 29 – June 1, 2018.

numerical_study_of_the_vibration_su

liaaaaaaaa

2018

Li, W.; Wierschem, N.E.; Li, X.; and Yang, T., “Numerical study of the vibration suppression performance of a single-sided vibro-impact track nonlinear energy sink considering base structure vertical dynamics,” Engineering Mechanics Institute Conference 2018, (SHMC Student Paper Competition), Cambridge, MA, USA, May 29 – June 1, 2018.

a_numerical_investigation_of_a_grav

ramseyaaaa

2018

Ramsey, R. and Wierschem, N.E., “A Numerical Investigation of a Gravity-Compensated Nonlinear Energy Sink for the Passive Control of Flooring Systems,” 36th International Modal Analysis Conference (IMAC), Orlando, FL, USA, February 12—15, 2018.

bump_at_the_end_of_the_bridge_revie

shortaaaaa

2018

Short, T.; Wierschem, N.E.; Denavit, M.; and Bennett, R.M., “Bump at the End of the Bridge: Review and Analysis of Rider Discomfort,” 2018.

response_attenuation_in_a_large_sca

wierschema

2017

Wierschem, N.E..; Hubbard, S.; Luo, J.; Fahnestock, L.A.; Spencer Jr., B.F.; McFarland, D.M.; Quinn, D.D.; Vakakis, A.F.; and Bergman, L.A. “Response attenuation in a large-scale structure subjected to blast excitation utilizing a system of essentially nonlinear vibration absorbers,” Journal of Sound and Vibration, 389, 52-72, 2017.

numerical_and_experimental_investig

alsudeifat

2017

Al-Sudeifat, M.A.; Wierschem, N.E.; Bergman, L.A.; and Vakakis, A.F. “Numerical and Experimental Investigation of a Rotating Nonlinear Energy Sink,” Meccanica, 52(4–5), 763–779, 2017.

seismic_performance_evaluation_of_i

javidiales

2017

Javidialesaadi, A. and Wierschem, N.E., “Seismic performance evaluation of inerter-based tuned mass dampers,” 3rd Huixian International Forum on Earthquake Engineering for Young Researchers, Urbana, IL, USA, August 11-12, 2017.

passive_control_of_the_vibration_of

ramseyaaaa

2017

Ramsey, R. and Wierschem, N.E., “Passive Control of the Vibration of Flooring Systems using a Gravity Compensated Non-Linear Energy Sink,” The 13th International Workshop on Advanced Smart Materials and Smart Structures Technology, The University of Tokyo, Japan, July 22-23, 2017

robust_passive_floor_vibration_miti

ramseyaaaa

2017

Ramsey, R. and Wierschem, N.E., “Robust passive floor vibration mitigation using a gravity compensated nonlinear energy sink,” Engineering Mechanics Institute Conference 2017, San Diego, CA, USA, June 4-7, 2017. (Abstract Only)

extending_the_fixed_points_techniqu

javidiales

2017

Javidialesaadi, A. and Wierschem, N.E., “Extending the fixed-points technique for optimum design of rotational inertial tuned mass dampers,” 35th International Modal Analysis Conference (IMAC), Garden Grove, CA, USA, January 30 – February 2, 2017.

column_buckling_demonstration_model

ohstromaaa

2017

Ohstrom, K.; Denavit, M.; and Wierschem, N.E., “Column Buckling Demonstration Model,” 2017.

numerical_and_experimental_study_of

wangaaaaaa

2016

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr.; and Lu, X., “Numerical and experimental study of the performance of a single-sided vibro-impact track nonlinear energy sink“, Earthquake Engineering and Structural Dynamics, 45(4), 635–652, 2016.

Wang, J.; Lu, X., Wierschem, N.E.; and Spencer B. F. Jr., “Response enhancement of a 32-story building structure using two types of track nonlinear energy sinks”, The 12th International Workshop on Advanced Smart Materials and Smart Structures Technology (ANCRiSST2016). Cambridge, UK, June 27-30, 2016.

response_enhancement_of_a_32_story_

wangaaaaaa

2016

mitigation_of_structural_response_d

javidiales

2016

Javidialesaadi, A. and Wierschem, N.E., “Mitigation of Structural Response Due to Near-Field Seismic Ground Motion Using an Optimized Innovative Rotational Inertia Damping Device,” Student Paper Competition of ASCE EMI SHMC Committee, Engineering Mechanics Institute Conference 2016, Nashville, TN, USA, May 22-25, 2016.

experimental_study_of_track_nonline

wangaaaaaa

2015

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr.; and Lu, X., “Experimental Study of Track Nonlinear Energy Sinks for Dynamic Response Reduction”, Engineering Structures, 94, 9-15, 2015.

track_nonlinear_energy_sink_for_the

wangaaaaaa

2015

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr.; and Lu, X., “Track Nonlinear Energy Sink for the Rapid Response Reduction in Building Structures,” ASCE Journal of Engineering Mechanics, 141(1), 2015.

development_of_the_usace_automated_

treeceaaaa

2015

Treece, Z.; Smith, M.; Wierschem, N.E.; Sweeney, S.; and Spencer, B. F. Jr. “Development of the USACE Automated SMART Gate System for Lock Gates: Part 1 – Structural Monitoring and Analysis in Real Time for Gates,” International Workshop on Structural Health Monitoring 2015. Stanford, CA, September 1-3, 2015.

experimental_study_of_track_nonline

wangaaaaaa

2015

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr; and Lu, X., “Experimental study of track nonlinear energy sinks for seismic reduction,” The 5th Tongji-UBC symposium on Earthquake Engineering – Facing Earthquake Challenges Together, Tongji University Shanghai, China, May 4-8 2015.

large_scale_experimental_evaluation

luoaaaaaaa

2014

Luo, J.; Wierschem, N.E.; Hubbard, S.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Large-Scale Experimental Evaluation of A System of Nonlinear Energy Sinks for Seismic Mitigation,” Engineering Structures, 77, 34 – 48, 2014.

design_simulation_and_large_scale_t

luoaaaaaaa

2014

Luo, J.; Wierschem, N.E.; Fahnestock, L.A.; Spencer Jr., B.F.; Quinn, D.D.; McFarland, D.M.; Vakakis, A.F.; and Bergman, L.A., “Design, simulation and large-scale testing of an innovative vibration mitigation device employing essentially nonlinear elastomeric springs,” Earthquake Engineering and Structural Dynamics, 43(12), 2014.

experimental_testing_and_numerical_

wierschema

2014

Wierschem, N.E.; Luo, J.; Al-Sudeifat, M.A.; Hubbard, S.; Ott, R.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A. “Experimental Testing and Numerical Simulation of a Six-Story Structure Incorporating a Two Degree of Freedom Nonlinear Energy Sink,” ASCE Journal of Structural Engineering, 140(6), 2014.

realization_of_a_strongly_nonlinear

luoaaaaaaa

2014

Luo, J.; Wierschem, N.E.; Fahnestock, L.A.; Bergman, L.A.; Spencer Jr., B.F.; Al-Sudeifat, M.A.; McFarland, D.M.; Quinn, D.D.; and Vakakis, A.F. “Realization of a Strongly Nonlinear Shock Mitigation Device using Elastomeric Bumpers,” ASCE Journal of Engineering Mechanics, 140(5), 2014.

model_based_multi_metric_control_of

phillipsaa

2014

Phillips, B.M.; Wierschem, N.E.; and Spencer Jr., B.F., “Model-based multi-metric control of uniaxial shake tables,” Earthquake Engineering and Structural Dynamics, 43, 681–699, 2014.

example_mesh_discretization_study_l

wierschema

2014

Wierschem, N.E.; Smith, M. D.; Sweeney, S. C.; and Spencer Jr., B.F., “Example Mesh Discretization Study: Lock 27 Miter Gate FEM Model,” US Army Corps of Engineers Tech. Note, (Submitted September, 2014)

enhancement_of_a_building_structure

wangaaaaaa

2014

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr; and Lu, X., “Enhancement of a building structure using a single-sided vibro-impact nonlinear energy sink,” 1st Joint Workshop on Building / Civil Engineering between Tongji and Tokyo Tech. Tokyo, Japan, August 5-7, 2014.

experimental_investigation_of_a_rot

wierschema

2014

Wierschem, N.E.; Al-Sudeifat, M.A.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A. “Experimental Investigation of a Rotational Nonlinear Energy Sink for Shock Mitigation” Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. Buffalo, New York, USA, August 17-20, 2014.

experimental_evaluation_of_multiple

wierschema

2014

Wierschem, N.E.; Hubbard, S.; Luo, J.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Experimental Evaluation of Multiple Nonlinear Energy Sinks Coupled to a Large Nine-story Frame Structure for Seismic Hazard Mitigation,” 5th Conference on Nonlinear Vibrations, Localization and Energy Transfer, Istanbul, Turkey, July 2-4, 2014.

numerical_and_experimental_investig

alsudeifat

2013

Al-Sudeifat, M.A.; Wierschem, N.E.; Quinn, D.D.; Vakakis, A.F.; and Bergman, L.A.; and Spencer Jr., B.F. “Numerical and Experimental Investigation of a Highly Effective Single-Sided Vibro-Impact Nonlinear Energy Sink for Shock Mitigation,” International Journal of Non-Linear Mechanics, 52, 96-109, 2013.

structural_logic_tailoring_stiffnes

wierschema

2013

Wierschem, N.E.; Luo, J.; Hubbard, S.; Al-Sudeifat, M.A.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Structural Logic: Tailoring Stiffness and Damping of Large Scale Structures via Passive Nonlinear Targeted Energy Transfer,” Final Report: Grant No. HR0011-10-1-0077, DARPA Strategic Technology Office, 2013.

track_nonlinear_energy_sinks_for_im

wangaaaaaa

2013

Wang, J.; Wierschem, N.E.; Spencer B. F. Jr; and Lu, X. “Track Nonlinear Energy Sinks for Impulsive Response Reduction.” In Proceedings of ANCRISST 2013 – The 9th International Workshop on Advanced Smart Structures and Technology. Ulsan, Korea, July 18-21, 2013.

synergistic_combination_of_multiple

wierschema

2013

Wierschem, N.E.; Luo, J.; Hubbard, S.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Synergistic combination of multiple nonlinear energy sinks in a large-scale building structure subjected to seismic ground motion,” Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics, Vienna, Austria, August 28-30, 2013.

a_large_scale_test_structure_with_m

luoaaaaaaa

2013

Luo, J.; Wierschem, N.E.; Hubbard, S.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “A Large-Scale Test Structure with Multiple Nonlinear Energy Sinks for Shake Table Testing under Seismic Excitation,” Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics, Vienna, Austria, August 28-30, 2013.

experimental_blast_testing_of_a_lar

wierschema

2013

Wierschem, N.E.; Hubbard, S.; Luo, J.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Experimental blast testing of a large 9-story structure equipped with a system of nonlinear energy sinks,” Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2013. Portland, Oregon, USA, August 4-7, 2013.

experimental_testing_of_a_large_9_s

wierschema

2013

Wierschem, N.E.; Hubbard, S.; Luo, J.; Fahnestock, L.A.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A., “Experimental testing of a large 9-story structure equipped with multiple nonlinear energy sinks subjected to impulsive loading,” Proceedings of the 2013 Structures Congress. Pittsburgh, Pennsylvania, USA, May 2-4, 2013.

passive_damping_enhancement_of_a_tw

wierschema

2012

Wierschem, N.E.; Quinn, D.D.; Hubbard, S.; Al-Sudeifat, M.A.; Luo, J.; McFarland, D.M.; Fahnestock, L.A.; Vakakis, A.F.; Bergman, L.A.; and Spencer Jr., B.F. “Passive Damping Enhancement of a Two-degree-of-freedom System Through a Strongly Nonlinear Two-degree-of-freedom Attachment,” Journal of Sound and Vibration, 331(25), 5393-5407, 2012.

equivalent_modal_damping_stiffening

quinnaaaaa

2012

Quinn, D.D.; Hubbard, S.; Wierschem, N.E.; Al-Sudeifat, M.A.; Ott, R.J.; Luo, J.; Spencer Jr., B.F.; McFarland, D.M.; Vakakis, A.F.; and Bergman, L.A., “Equivalent modal damping, stiffening, and energy exchanges in multi-degree-of-freedom systems with strongly nonlinear attachments,” Journal of Multi-Body Dynamics, 226(2), 122-146, 2012.

simulation_and_testing_of_a_6_Story

wierschema

2012

Wierschem, N.E.; Luo, J.; Al-Sudeifat, M.A.; Hubbard, S.; Ott, R.; Fahnestock, L.A.; Quinn, D.D.; McFarland, D.M.; Spencer Jr., B.F.; Vakakis, A.F.; and Bergman, L.A. “Simulation and Testing of a 6-Story Structure Incorporating a coupled two Mass Nonlinear Energy Sink,” Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. Chicago, USA, August 12-15, 2012.

numerical_and_experimental_investig

alsudeifat

2012

Al-Sudeifat, M.A.; Wierschem, N.E.; Quinn, D.D.; Vakakis, A.F.; and Bergman, L.A.; and Spencer Jr., B.F. “Numerical and Experimental Investigation of a New Nonlinear Energy Sink for Passive shock Mitigation,” Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. Chicago, USA, August 12-15, 2012.

model_based_control_of_shake_tables

phillipsaa

2012

Phillips, B.M.; Wierschem, N.E.; and Spencer Jr., B.F., “Model-Based Control of Shake Tables with Multi-Metric Feedback,” International Conference on Earthquake Engineering Research. Harbin, China, May 18-21, 2012.

numerical_study_of_nonlinear_energy

wierschema

2011

Wierschem, N.E.; Spencer B. F. Jr; Bergman, L.A.; and Vakakis. A.F. “Numerical Study of Nonlinear Energy Sinks for Seismic Response Reduction,” In Proceedings of ANCRISST 2011 – The Sixth International Workshop on Advanced Smart Structures and Technology. Dalian, China, July 25-26, 2011.

superelastic_sma_frp_omposite_reinf

wierschema

2010

Wierschem, N.E. and Andrawes, B. “Superelastic SMA–FRP composite reinforcement for concrete structures,” Smart Materials and Structures, 19(2), 1-13, 2010.

active_confinement_of_reinforced_co

andrawesaa

2010

Andrawes, B.; Shin, G.; and Wierschem, N.E.Active Confinement of Reinforced Concrete Bridge Columns using Shape Memory Alloys,” ASCE Journal of Bridge Engineering, 15(1), 81-89, 2010.