The Dynamics of Nonlinear Mechanical Systems
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Elbert L. Marsh', 'PO_EMAI': None, 'PO_PHON': None}
This project analyzes the dynamic response of mechanical systems                modeled  by nonlinear equations of motion.  The systems have two                degrees of  freedom where nonlinearities are produced by impacts                and from qeometric  sources.  This class of systems is typified                 by dynamic vibration  absorbers with limiting stops.  The stops                 are used to limit excursions  of absorber devices and are not                   intended to act during normal operation. A study of motions                     involving impacts with the stops must be carried out  to ensure                 that such motions do not occur.  This project implements that                   study for both translational and rotational dynamic vibration                   absorbers. It determines the parameter range for nonlinear                      behavior and for  stability of motion.
{'FirstName': 'Steven', 'LastName': 'Shaw', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Steven W Shaw', 'EmailAddress': 'sshaw@fit.edu', 'NSF_ID': '000268014', 'StartDate': '01/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Michigan State University', 'CityName': 'EAST LANSING', 'ZipCode': '488242600', 'PhoneNumber': '5173555040', 'StreetAddress': '426 AUDITORIUM RD RM 2', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Michigan', 'StateCode': 'MI', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'MI07', 'ORG_UEI_NUM': 'R28EKN92ZTZ9', 'ORG_LGL_BUS_NAME': 'MICHIGAN STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'VJKZC4D1JN36'}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1445', 'Text': 'DYNAMICS & CONTROL'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1986&All=true', 'xml': '8613294.xml'}