JPS57144188A - Manufacturing method of propeller for ship - Google Patents

Manufacturing method of propeller for ship

Info

Publication number
JPS57144188A
JPS57144188A JP2790281A JP2790281A JPS57144188A JP S57144188 A JPS57144188 A JP S57144188A JP 2790281 A JP2790281 A JP 2790281A JP 2790281 A JP2790281 A JP 2790281A JP S57144188 A JPS57144188 A JP S57144188A
Authority
JP
Japan
Prior art keywords
wake
propeller
radius position
distribution
taken
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2790281A
Other languages
Japanese (ja)
Inventor
Yukihiko Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2790281A priority Critical patent/JPS57144188A/en
Publication of JPS57144188A publication Critical patent/JPS57144188A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE:To manufacture a propeller of high operational efficiency by determining pitches to obtain the optimum state of operation of a propeller blade at respective positions for restraining cavitation. CONSTITUTION:In this invention, the wake coefficient value of a chain line B is taken at an almost 100% radius position, and the wke coefficient value of a solid line A is taken at an almost 70% radius position, while a new wake distribution constructed of a fair curve taking the lowest wake value at the almost 70% radius position is obtained. A braken line C shows a wake distribution as the base of the pitch distribution of this invention. Then, on the basis of the above- said wake distributions, pitches are determined so that a propeller blade may obtain the optimum operational state at respective positions.
JP2790281A 1981-02-27 1981-02-27 Manufacturing method of propeller for ship Pending JPS57144188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2790281A JPS57144188A (en) 1981-02-27 1981-02-27 Manufacturing method of propeller for ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2790281A JPS57144188A (en) 1981-02-27 1981-02-27 Manufacturing method of propeller for ship

Publications (1)

Publication Number Publication Date
JPS57144188A true JPS57144188A (en) 1982-09-06

Family

ID=12233810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2790281A Pending JPS57144188A (en) 1981-02-27 1981-02-27 Manufacturing method of propeller for ship

Country Status (1)

Country Link
JP (1) JPS57144188A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7250861B2 (en) 2002-07-25 2007-07-31 Optex Co., Ltd. Crime-prevention lighting device
WO2017168549A1 (en) * 2016-03-29 2017-10-05 ジャパンマリンユナイテッド株式会社 Ship propulsion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7250861B2 (en) 2002-07-25 2007-07-31 Optex Co., Ltd. Crime-prevention lighting device
WO2017168549A1 (en) * 2016-03-29 2017-10-05 ジャパンマリンユナイテッド株式会社 Ship propulsion device

Similar Documents

Publication Publication Date Title
JPS57144188A (en) Manufacturing method of propeller for ship
JPS5793602A (en) Screw rotor
JPS57144892A (en) Gross-fin coil type heat exchanger
JPS5348103A (en) Manufacturing method for total-flow turbine blade
JPS56110569A (en) Power generating device by using water flow
JPS5214108A (en) Method for preventing corrosion and wear of blade
JPS57171005A (en) Manufacture of impeller
JPS534293A (en) Shaving cutter
JPS54138297A (en) Multiple bilge keel
JPS5428007A (en) Method for manufacturing centrifugal fan
JPS57108473A (en) Control method for propeller type wind-wheel
JPS5363208A (en) Impeller with excellent stress corrosion cracking resistance
JPS5343115A (en) Manufacturing method for gas turbine hollow blade
JPS5329595A (en) Metal flush plate
EP0075544A3 (en) Oar for windsurf
JPS52137882A (en) Steps for escalator
JPS52135193A (en) Oscillation decreasing method of floating body
JPS55164795A (en) Lateral flow fan
JPS52114105A (en) Impeller manufacturing method
Urbat West German Foundry Fortunes on the Upturn
JPS5344905A (en) Vane wheel
JPS5411940A (en) Electrodeposition coating of aluminum
JPS56157929A (en) Production of cam shaft
JPS5627097A (en) Vane-type air pump
Gerdeen The Effect of Buckling Due to Residual Stresses on Springback Measurements