470 research outputs found
I.C. Engine Fundamental (I)
No full textThis text has been compiled for those trainees taking part in the six months Marine Engineering Course at SEAFDEC/TD, to be used in conjunction with the lectures and practical training on the subject of the Internal Combustion Engines for Fishing Boats. The text deals with fundamentals of the prime mover in the form of heat engines, specifically the internal combustion engine, and has been based on the technical senior-high school level requirements in Japan. Further applications, including small automobile engines, rotary and diesel engines etc. Will be explained in the next edition of this text series (I.C. Engine Fundamentals (II)) by the same author
Emblemata Florentii Schoonhovii I.C. Goudani : partim moralia, partim etiam civilia /
No full textSignatures: *⁶ A-2G⁴ 2H⁶.Title and emblems engraved by Crispijn van de Passe the Younger; see Landwehr. Engraved port. of the author (*6v), signed with initials (MN?).Each of the LXXIV emblems is preceded by a motto and followed by explanatory Latin couplets and a Commentarius in prose.Landwehr, J. Emblem and fable books (3rd ed.),Mode of access: Internet.At head of front pastedown of c. 3 is the signature: Wäterling. Below is the embossed bookplate of G. Delmay, printed black on red, and at the lower left-hand corner is the label of John Landwehr. The facing flyleaf is inscribed in pencil: de la bibliotheque Max Rooses, perhaps the writer on painting who lived 1839-1914. At foot of t.p. are the initials F.K.At head of front pastedown of Getty c. 2 are bibliographical notes in pencil, and at the foot is Ulrich Middeldorf's label. Slip of paper with bibliographical note written in black ink tipped onto verso of front free endpaper. Signature at foot of t.p.: F. Travers. Another signature at head of *2r: John Crumpe. Slip from bookseller's catalog describing this copy has been tipped onto back pastedown.At upper left-hand corner of front pastedown of c. 1 is Theodore Besterman's calligraphic label, signed with the initials P.S. Facing flyleaf signed by Joannes van Zeller Junior and dated 1660.Binding, c. 1: vellum over stiff paper, edges sprinkled red. Copy 2: later polished calf, rebacked. Boards tooled in gilt with 2 frames of double fillets, and fleurons at corners of the inner frame. Edges of boards tooled in gilt, turn-ins tooled in blind. Page edges gilt. Copy 3: later vellum. Edges sprinkled blue.In Getty c. 2, leaf *6 with port. is bound before *1; in its place following *5 is bound 2E4, the section title leaf for Poemata aliquot. Leaf I4 with p. 71-72 is wanting
Stribeck Curve for Starved Concentrated Contacts
No full textThis paper discusses a mixed lubrication model in order to predict the Stribeck curve for starved lubricated line contacts. Themodel is an extension of themixed lubrication model of Gelinck and Schipper [1]. In order to build the starved Stribeck curve model, the contact model of Greenwood and Williamson [2] and the EHL film thickness for starved line contacts making use of the assumption of Johnson et al. [3] is combined. The starved solution to be implemented in the EHL component is obtained by fitting numerical data of Wolveridge et al. [4] who computed the starved film thickness for smooth line contacts. Calculations are presented for different oil supply layer thickness over roughness values. For values of oil layer thickness over roughness ratio (h oil/σ s) larger than approximately 6, the Stribeck curve and separation do not change. If the oil layer thickness over roughness ratio is in the range of 6 to 0.7 friction starts to increase and the film thickness decreases. When the oil layer thickness over roughness ratio is less than approximately 0.7 the Stribeck curve tends to transform into a straight line and separation stays on the same value as in the BL regime
Stribeck curve for starved line contacts
No full textThis paper discusses a mixed lubrication model in order to predict the Stribeck curve for starved lubricated line contacts. This model is based on a combination of the contact model of Greenwood and Williamson and the elastohydrodynamic (EHL) film thickness for starved line contacts. The starved solution to be implemented in the EHL component is obtained by using numerical data of Wolveridge, who computed the starved film thickness for smooth line contacts. Calculations are presented for different oil supply layer thickness over roughness values (hoil/s). For values of the oil layer thickness over roughness ratio larger than approximately 6, the Stribeck curve and separation between the rough surfaces do not change compared to the fully flooded situation. If the oil layer thickness over roughness ratio is in the range of 6 down to 0.7, friction starts to increase and the film thickness decreases. When the oil layer thickness over roughness ratio is less than approximately 0.7, the Stribeck curve tends to transform into a straight line and separation stays at the same value as in the boundary lubrication regime. Comparison between measurements and calculations is made and a good agreement is found
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