NDLI: Drop-Induced Shock Mitigation Using Adaptive Magnetorheological Energy Absorbers Incorporating a Time Lag

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Young-Tai Choi Wereley, Norman M.
Copyright Year	2015
Abstract	This study addresses the nondimensional analysis of drop-induced shock mitigated using magnetorheological energy absorbers (MREAs) incorporating a time lag. This time lag arises from two sources: (1) the time required to generate magnetic field in the electromagnet once current has been applied and (2) the time required for the particles in the magnetorheological fluid to form chains. To this end, the governing equations of motion for a single degree-of-freedom (SDOF) system using an MREA with a time lag were derived. Based on these equations, nondimensional stroke, velocity, and acceleration of the payload were derived, where the MREA with a time lag was used to control payload deceleration after the impact. It is established that there exists an optimal Bingham number that allows the payload mass to achieve a soft landing, that is, the payload comes to rest after utilizing the available stroke of the MREA. Finally, the shock mitigation performance when using this optimal Bingham number control strategy is analyzed, and the effects of time lag are quantified.
Starting Page	011010
Ending Page	011016
Page Count	7
File Format	PDF
ISSN	10489002
e-ISSN	15288927
Journal	Journal of Vibration and Acoustics
Volume Number	137
Issue Number	1
DOI	10.1115/1.4028747
Language	English
Publisher	The American Society of Mechanical Engineers
Publisher Date	2015-02-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Equations of motion Shock (Mechanics)
Content Type	Text
Resource Type	Article
Subject	Acoustics and Ultrasonics Mechanics of Materials Mechanical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Shock Isolation Systems Using Magnetorheological Dampers

Passive Control of Piston Secondary Motion Using Nonlinear Energy Absorbers

Energy Conserving Equations of Motion for Gear Systems

Nonlinear Interactions in Systems of Multiple Order Centrifugal Pendulum Vibration Absorbers

Optimal Design of Vibration Absorber Systems Supported by Elastic Base

The Dynamics of an Impact Print Hammer

Dynamic Characteristics of Layered Beam with Flexible Core

On the Attachment Location of Dynamic Vibration Absorbers

Pendulum as Vibration Absorber for Flexible Structures: Experiments and Theory

Drop-Induced Shock Mitigation Using Adaptive Magnetorheological Energy Absorbers Incorporating a Time Lag

Similar Documents

Shock Isolation Systems Using Magnetorheological Dampers

Passive Control of Piston Secondary Motion Using Nonlinear Energy Absorbers

Energy Conserving Equations of Motion for Gear Systems

Nonlinear Interactions in Systems of Multiple Order Centrifugal Pendulum Vibration Absorbers

Optimal Design of Vibration Absorber Systems Supported by Elastic Base

The Dynamics of an Impact Print Hammer

Dynamic Characteristics of Layered Beam with Flexible Core

On the Attachment Location of Dynamic Vibration Absorbers

Pendulum as Vibration Absorber for Flexible Structures: Experiments and Theory

Drop-Induced Shock Mitigation Using Adaptive Magnetorheological Energy Absorbers Incorporating a Time Lag