Marine propellers and propulsion

[Tokyo Shosen Gakko]

[目次]

  • CONTENTS.
  • LECTURE X. PROPULSION.
  • LECTURE XI. OARS,JET-PROPELLERS,PADDLE WHEELS AND SCREW PROPELLERS.
  • Oar / 11
  • Jet-Propulsion / 11
  • The paddle-wheel / 12
  • Radial Paddle-wheel / 13
  • Feathering paddle-wheel / 13
  • Paddle-shaft bearings / 14
  • Overhung wheels / 15
  • Driving and raidus rods / 15
  • Screw-propeller / 15
  • Length of screw / 17
  • Angle of the screw / 17
  • Diameter / 17
  • Pitch / 18
  • Speed of screw / 18
  • Increasing pitch / 18
  • The "disc area" / 18
  • The "developed area" / 19
  • The "projected blade area" / 19
  • Slip / 19
  • Negative slip / 20
  • Propeller race / 21
  • Augmentation of resistance due to action of screw-propeller / 22
  • General conclusions / 23
  • Cavitation / 25
  • Twin screw / 27
  • The triple screw system / 28
  • Causes of vibration / 28
  • Laying down screw propeller on the drawing board / 32
  • Projected form of blades / 39
  • Blades not symmetrical / 40
  • Blades bent aft / 41
  • Variable pitch / 43
  • Right handed and left handed propeller / 48
  • Form of blade / 50
  • Griffith's screw / 51
  • Hirch screw-propeller / 53
  • Thornycroft's screw / 54
  • The screw turbine propeller / 55
  • Screw for tugs / 56
  • Numbers of blades / 56
  • Material of propeller / 57
  • Strength of propeller-blades / 57
  • Thickness of blade at root / 59
  • Aggregate length of the screw-blades / 59
  • Screw propeller in turbine vessels / 60
  • Turbine propeller balance / 60
  • Shape of blades,and cones / 60
  • Pitch ratio / 61
  • Area ratio / 61
  • Pitch variation / 61
  • Alteration of pitch / 61
  • Propeller diameter and pitch / 62
  • Practical methods of pitch measurement / 63
  • Propeller pitch with shaft inclined / 66
  • To fit on a new propeller blades / 66
  • To find the pitch when the propeller is in the position shown in Fig.55 / 67
  • To measure the pitch of a propeller lying on the floor as shown in Fig.56. / 67
  • Chapman-Hunter pitchometer / 68
  • Weight of screw propellers / 68
  • Arrangement of twin-screws / 69
  • LECTURE XII. BRAKE AND SHAFT HORSE-POWER.
  • Brake horse-power(B.H.P.) / 71
  • Shaft horse-power / 73
  • Denny & Johnson torsion meter / 73
  • Bevis-Gibson flash-light torsion meter / 76
  • LECTURE XIII. CO-EFFICIENTS AND CURVES OF PERFORMANCE.
  • Co-efficients of performance / 79
  • Experimental determination of I.H.P. / 80
  • Curves of I.H.P. / 81
  • Curves of indicated thrust / 82
  • Components of total power exerted / 83
  • Constant friction of engines / 84
  • Additional friction due to working load / 84
  • Determination of mechanical efficiency / 85
  • Froude's analysis of total power / 87
  • Distribution of power in modern vessels / 87
  • Curves of coal consumption.Economical speed / 90
  • LECTURE XIV. POWER,SPEED AND CONSUMPTION.
  • Consumption / 92
  • Examples showing relative effects of increased speed and displacement on consumption / 99
  • Algebraic formula for economical speed within the limits of the cube of the speed rule for engine consumption / 101
  • To find the most economical speed to run in a tide way,or against a stream / 102
  • Vibration and variable speed / 102
  • Reduction of power when towing or when vessel is fast to a dock / 104
  • Trial trips / 106
  • Special conditions for speed trials / 109

「国立国会図書館デジタルコレクション」より

この本の情報

書名 Marine propellers and propulsion
著作者等 商船学校
出版元 Shosen-Gakko
刊行年月 1913.7
ページ数 110p
大きさ 23cm
NCID BA78554525
※クリックでCiNii Booksを表示
全国書誌番号
22252758
※クリックで国立国会図書館サーチを表示
言語 英語
出版国 日本
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