MAXIMUM VOLUME-TO-STRESS RATIO FOR A TWO-RADII-CONTOUR DIAPHRAGM PUMP | Zendy

R.D. Cheverton | Zendy

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MAXIMUM VOLUME-TO-STRESS RATIO FOR A TWO-RADII-CONTOUR DIAPHRAGM PUMP

Author(s) -

R.D. Cheverton

Publication year - 1960

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/4195220

Subject(s) - diaphragm (acoustics) , radius , deflection (physics) , von mises yield criterion , diameter ratio , materials science , structural engineering , mathematics , mechanics , composite material , optics , physics , engineering , acoustics , computer science , finite element method , computer security , loudspeaker

Analytical methods were employed to determine the maximum volume-to- stress ratio for a two-radii-contour diaphragm pump. A proposed failure criterion considers the effect of biaxial stresses on fatigue failure through. the use of the Mises-Hencky criterion for fatigue failure. By use of the proposed criterion, it was determined that an optimunn ratio of the two radii does exist, its value being dependent on the ratio of diphragm thickness to diaphragm deflection. Values for the optimum ratio of the two radii (where the ratio of radii is defined as the radius of the central pcrtion of the diaphragm contour divided by the radius of the outer pontion of the diaphragm) range from 1.94 to 7.33 as the ratio of diaphragm thickness to diaphragm deflection varies from 0.5 to 0.05, respectively. (auth

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