Investigação na aplicação da teoria de vibração ao teste dinâmico de máquinas-ferramentas

The main purpose of this work was to investigate the dynamic stability of a national centre lathe. The degree of stability to above referred rnachine tool was determined in two different ways. Firstly, the cutting tests were done on predetermined workpieces to obtain a chart of stability between the lirnit width of cut and the superficial velocity of the workpiece. Maintaining the transverse feed constant and varying sucessively the rotation of the spindle. The second part was measuring the response of the rnachine to excitation by an electrodynarnic vibrator, utilizing automatic equipment. Finally one compared the graphs of dynamic stability obtained experimentally and, theoretically, by considering three distinct aspects of the the theory of stability using the respective cornputer programrnes.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1972

Author dc:creator

• Abi-Zaid, José Antônio Saadi

Advisor dc:contributor.advisor

• Evans, Michel C.

• Vibrações de maquinas

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3403

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3403