Experimental investigation of time-dependent cavitation in an oscillatory squeeze film

CHEN; Xiaoyang; SUN; Meili; WANG; Wen; D.C.SUN; ZHANG; Zhi

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Experimental investigation of time-dependent cavitation in an oscillatory squeeze film

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The occurrence of time-dependent cavitation and tensile stress in an oscillatory oil squeeze film were investigated experimentally. The test apparatus was a simple thrust bearing consisting of two parallel circular plates separated by a thin viscous oil film. During the test, one plate was at rest while the other (transparent) oscillated in a direction normal to its surface. This test configuration was chosen to avoid the rotational motion and complicated geometry of a squeeze film journal bearing. The frequency of oscillation was in the range of 5 to 50 Hz and was controlled by an electro-magnetic exciter. The process of cavity formation and its subsequent development was recorded by a high-speed video camera. Concomitant pressure in the oil film was measured both within and without the cavitation region. It was found that both tensile stress and cavities existed in a squeeze film under certain working conditions.

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来源
《中国科学》 |2004年第z1期|P.107-112|共6页
作者
CHEN; Xiaoyang; SUN; Meili; WANG; Wen; D.C.SUN; ZHANG; Zhi;
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作者单位

Research;

Institute;

of;

Bearings,;

Shanghai;

University,;

Shanghai;

200072,;

China;

Department;

of;

Mechanical;

Engineering,;

State;

University;

of;

New;

York;

at;

Binghamton,;

NY;

13902-6000,USA;

Research;

Institute;

of;

Bearings,;

Shanghai;

University,;

Shanghai;

200072,;

China;

Department;

of;

Mechanical;

Engineering,;

State;

University;

of;

New;

York;

at;

Binghamton,;

NY;

13902-6000,USA;

Research;

Institute;

of;

Bearings,;

Shanghai;

University,;

Shanghai;

200072,;

China;

Department;

of;

Mechanical;

Engineering,;

State;

University;

of;

New;

York;

at;

Binghamton,;

NY;

13902-6000,USA;

Research;

Institute;

of;

Bearings,;

Shanghai;

University,;

Shanghai;

200072,;

China;

Department;

of;

Mechanical;

Engineering,;

State;

University;

of;

New;

York;

at;

Binghamton,;

NY;

13902-6000,USA;

Research;

Institute;

of;

Bearings,;

Shanghai;

University,;

Shanghai;

200072,;

China;

Department;

of;

Mechanical;

Engineering,;

State;

University;

of;

New;

York;

at;

Binghamton,;

NY;

13902-6000,USA;

Research;

Institute;

o;

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原文格式 PDF
正文语种 CHI
中图分类自然科学总论;
关键词
dynamically; loaded; journal; bearing,; squeeze; film; effect,; time-dependent; cavitation.;

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Experimental investigation of time-dependent cavitation in an oscillatory squeeze film

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