Rudiments of naval architecture; or, an exposition of the elementary principles of the science and the practical application to naval construction; compiled for the use of beginners

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نویسندگان: Peake James.  
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تعداد صفحات: [338] 
زبان: English 
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London: John Weale, Architectural library, 59, High Holborn, 1849, 338 p. Contents. The Displacement of a Floating Body considered. Application of the Law thus determined to the Displacement of a Ship, when treated as a Float-ing Body.-The Calculations on the Immersed Portions of a Ship abe solutely necessary to avoid Failure and Unnecessary Expense in such Costly Fabrics. - Page 3 The Application of Sterling's Rules to the Measurement of Areas, bounded by a Straight Line as a Base and a Curve Line ; the first Rule requiring an odd Number of Ordinates, the second Rule that the Ordinates must be in Number a Multiple of the numeral three, with one added. - P. 5
Method otapplying Sterling's Rules to ascertain the Solidity of the Bulk of Fluid displaced by the Immersed Portion of a Ship. 2nd. A Method of obtaining the same under a more Concise Mode of Application of the same Rules, by means of a Double-columned Table for the Insertion of the Measured Ordinates of the Areas. - P. 8 The Calculations already made by Sterling's Rules for ascertaining the Volinne Immersed, applied to determine the Position of the Centre of Gravity of that Volume, or of that of the Displacement. Position of the Centre of Gravity of a System of Bodies. The same Reasoning applied to find the Centre of Gravity of Displacement of a Ship.-Its Application under the System of using a Double Table of Ordinates. - P.13 Method of describing a Curve of Vertical Sectional Areas.-Its Applica-tion to the Calculations required on the Immersed Portion of a Ship.-1st. To the Displacement—Relative Capacities of the Fore and After Bodies of Immersion, denoted by the Area of Sections. The Light Displacement or Weight of the Hull of the Vessel, obtained under the same System. Practical Utility of it in stowing the Hold of the Vessel with Stores and Weights. The Sectional Area measufed by Sterling's Second Rule. - P. 15 Preliminary Remarks previous to the Application of the Rules for Calcu-lation to the Construction-draught of a Yacht of 36 Tons Admeasuree ment, old tonnage. The Immersed Part of a Vessel considered as a Portion of the Parallelopipodon formed by the Dimensions of Length, Breadth, and Depth.—Relative Capacities of the two Bodies, or Fore and After Bodies, under the Half-lengths of the Load-water Line.— Example of Bad Construction in this Element.—Man-of-War Brigs of 1833.—The Accuracy of the Stowage of the Hold ensured by the Delineation of the Curves of Sectional Areas for Light and Load Immersions.—The Relative Capacities of the two Bodies under the same Displacement affect the Form Forward and Aft. - P. 19 Curve of Sectional Areas, applicable to the Comparison of the Rea-tive Qualities of Ships of the same Rate, will give a Scale for Tonnage of Displacement under any Immersion. Method of forming the Scale of Displacement. - P. 22
PART VIII. Description of Fig. 8, or of the several Plans to be delineated by the Draughtsman, previous to the Commencement of the Calculations. - P. 23
PART IX. Application of Sterling's Rules to the Calculations required for the Cone structionedrawing of a Yacht of 36 Tons, old measurement—Fig. 8. 1st. Usual Mode of Calculating the Displacement by Vertical and Horizontal Sections. - P. 25 By the usual Method. Area of Midship or greatest Transverse Section.-Area of the Load-water Line, or Area of the assumed Plane of Deepest immersion. Capacity to the Inch at that Immersion in Cubic Feet, and Tons of 35 Cubic Feet of Space. Longitudinal Distance of the Centre of Gravity of Displacement from Section 1, considered as the Initial Plane. Distance the Centre of Gravity is below the Load-water Line, or Line of assumed Deepest Immersion.—Distance of the Centre of Gravity of the Load-water Section from the Section 1 of Fig.
8. - P.41 By the usual Method.- Relative Capacity of the Bodies immersed under the Fore and After Lengths of the Load-water Liner-Per Centage of the Bodies. Height of the Metacentre as the Comparative Measure of the Stability or Stiffness under Canvas of Vessel of the same dimene sins.—Sumniary of the Results of the Calculations. - P. 46 Second Method.—The Calculations under the Form of a Double-columned Table of Ordinates.—Displacement.—Area of Midthip Section.—Area of Load-water-Line.— Position of the Centre of Gravity of Displace-ment.sPosition of the Centre of Gravity of the Load-water Section.— Relative Capacity of the Two Bodies under the Fore and After Half-length of the Loadewater LinerHeight of the Metacentrei—Contrasted Elements of the Vessel obtained under the Two Methods. - P. 50 Method of forming a Curve of Sectional Areas from a Drawing of Ship.— Calculations for the Displacement from it. Application of the Method to the Yacht of 36 Tons Admeasurementr Relative Capacity of the Fore and After Bodies of the Yacht pointed out by the Curve. Area of Midship Section of the same. Curve of Sectional Areas used to obtain the Centre of Gravity of Displacement. Application of it to the Yacht of 36 Tons Admeasure ement. - P. 57 General Terms of the Curve of Sectional Areas when applied to Naval Construction. Practical Operations under that System to the Yacht of 36 Tons Admeasurements The Method applied to the Construction of a Frigate whose Displacement is 2300 Tons. - P. 66 Preliminary Remarks. Methods of Calculation for the Areas of the Sails. daSM. Method of finding the Centres of Gravity of Sails, and determining the Position of the Centre of Effort of the Moving Force or the Sails of a Ship. - P. 74 Scale of Capacity for the Yacht of 36 Tons Admeasurement. - P. 81 An Example of the Comparison of the Forms of Ships, by the Curve of Sections being applied to the Vertical Sections of Her Majesty's Ship Vanguard, of the year 1835, and the French Canopus, of the year 1786; and a further Application of the Curve of Sectional Areas to the Light and Load Displacements of the same MeneofeWar ; with a view of showing their relative Capacities for carrying Weights, and to facilitate their Stowage, as pointed out in page
17. - P. 92 Application of the Curve of Sectional Areas to the Stowage of the Hold of Her Majesty's Ship Canopus, with Reference to the Directions given at page 21 of this work. - P.112 A Demonstration of the Expression ri-5 7' as being a Measure of comparative Stability or Stiffness of Floating Bodies, more usually de-nominated the Height of the Metacentre above the Centre of Gravity of Displacement of the Immersed Portion of the Body. - P. 114 Investigation of a General Expression for the Stability of a Ship at Finite Angles of Inclination, and the Application of the Results to calculating the Stability of H. M. Ships Vanguard and Canopus, at an Angle of Seven Degrees. - P. 118 The Volumes of Immersion and Emersion of H. M. Ships Vanguard and Canopus, calculated to an Angle of 7°. Concluding Remarks and Ob. servations. - P. 122