Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. D. Hovanesian"'
Publikováno v:
Tribology Transactions. 41:382-386
A measurement technique was developed using the lateral effect photodiode method to determine oil film thickness and oil retention measurement. A position-sensing photodiode determined the change in position of a focused laser beam. The beam was refl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc718c5463860969a98447cf07a79162
https://doi.org/10.1080/10402009808983762
https://doi.org/10.1080/10402009808983762
Publikováno v:
Experimental Mechanics. 34:89-92
Shearography is an interferometric method for the direct measurement of derivatives of surface displacement. Shearography is traditionally practiced with a double-exposure mode. This paper presents a realtime technique which allows the derivative of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91bfadb3d8fdf69f46736a6993547372
https://doi.org/10.1007/bf02328445
https://doi.org/10.1007/bf02328445
Autor:
J. D. Hovanesian, Michael A. Latcha
Publikováno v:
International Journal of Mechanical Engineering Education. 21:309-315
Relationships are developed that bridge the gap between the deterministic, or factor-of-safety, approach to mechanical design and the more recent reliability, or stochastic, method. The resulting equations make it possible to incorporate stochastic d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::125ab8da5a662eafaa1f21ab7b3502c5
https://doi.org/10.1177/030641909302100401
https://doi.org/10.1177/030641909302100401
Publikováno v:
Applied optics. 17(1)
This paper presents a new coherent optical method whereby the partial derivatives of the contour of an object are measured. The object to be studied is immersed in a refractive medium and is imaged by a camera with a shearing device. The processed ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3559a497f4a72935c992bbdbf2029c69
https://pubmed.ncbi.nlm.nih.gov/20174364
https://pubmed.ncbi.nlm.nih.gov/20174364
Publikováno v:
Applied optics. 16(6)
A time-averaged shadow-moire method is presented which permits the determination of the amplitude distribution of the deflection of a plate in steady state vibration. No stroboscope is required, and the recording is done statically. The method is les
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40c532c04e071fa65193da9e1e9278d6
https://pubmed.ncbi.nlm.nih.gov/20168777
https://pubmed.ncbi.nlm.nih.gov/20168777
Publikováno v:
Journal of Applied Mechanics. 58:24-27
A novel treatment of computerized tomography is developed to calculate strains and displacements at internal nodes from known boundary displacements. The formulation is blended with finite element numerical scheme. Numerical simulations are performed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b828e342f1f43b3c6dc15496bc46ce3b
https://doi.org/10.1115/1.2897159
https://doi.org/10.1115/1.2897159
Autor:
J. D. Hovanesian
Publikováno v:
Experimental Mechanics. 14:233-236
This paper presents a new “hybrid” method whereby the ratio of the isochromatic-fringe visibility/isopachic-fringe visibility may be easily and continuously varied. This simple procedure merely combines a conventional polariscope with a holograph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6cf40f31b20ee328c774cb468f07c4
https://doi.org/10.1007/bf02323324
https://doi.org/10.1007/bf02323324
Publikováno v:
Experimental Mechanics. 12:196-200
A method has been developed for the generation of isopachic fringes in photoelastic coatings. This method requires that the front (outer) surface of the coating be deposited with a thin metallic film to increase the front-surface reflellctivity. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::340d61a62ad591d0cead224dd8ad61b0
https://doi.org/10.1007/bf02330273
https://doi.org/10.1007/bf02330273
Autor:
J. D. Hovanesian, Y. Y. Hung
Publikováno v:
Experimental Mechanics. 12:454-460
A method of full-field measurement of displacements as well as strain on arbitrarily curved surfaces is introduced. The speckle effect of coherent light is utilized to produce fringes due to displacements. Unlike the fringes produced by holographic i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27bf166e67ce4b790b735b4fba5edaac
https://doi.org/10.1007/bf02328815
https://doi.org/10.1007/bf02328815
Autor:
J. D. Hovanesian, Wesley F. Buchele
Publikováno v:
Transactions of the ASAE. 2:0078-0081
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bd0be642924f70ca242dd5d35b43dc0
https://doi.org/10.13031/2013.41174
https://doi.org/10.13031/2013.41174