JPS57149935A - Gm measuring device - Google Patents

Gm measuring device

Info

Publication number
JPS57149935A
JPS57149935A JP3491481A JP3491481A JPS57149935A JP S57149935 A JPS57149935 A JP S57149935A JP 3491481 A JP3491481 A JP 3491481A JP 3491481 A JP3491481 A JP 3491481A JP S57149935 A JPS57149935 A JP S57149935A
Authority
JP
Japan
Prior art keywords
period
calculated
ship
displayed
data
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.)
Granted
Application number
JP3491481A
Other languages
Japanese (ja)
Other versions
JPS6345360B2 (en
Inventor
Nobukazu Utsuki
Hiromitsu Ishii
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.)
UTSUKI ENG KK
UTSUKI ENGINEERING KK
UTSUKI KEIKI KK
Original Assignee
UTSUKI ENG KK
UTSUKI ENGINEERING KK
UTSUKI KEIKI KK
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 UTSUKI ENG KK, UTSUKI ENGINEERING KK, UTSUKI KEIKI KK filed Critical UTSUKI ENG KK
Priority to JP3491481A priority Critical patent/JPS57149935A/en
Publication of JPS57149935A publication Critical patent/JPS57149935A/en
Publication of JPS6345360B2 publication Critical patent/JPS6345360B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/14—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating inclination or duration of roll

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Testing Of Balance (AREA)

Abstract

PURPOSE:To display the best period and GM data rapidly, accurately and automatically according to the condition of a ship by measuring and operating the output of an inclination detector fixed to the body of the ship. CONSTITUTION:The rolling and pitching angles of a ship are detected by an inclination detector 2 respectively, and both detection signals are converted by A/D converters 8 and 10; when oscillation data exceeds a prescribed value A deg., the period is calculated by a CPU14 on the basis of the oscillation data and displayed, and when not, an autocorrelation coefficient is calculated to perform period arithmetic twice. When their difference is less than a prescribed value of alpha seconds, the period is calculated and displayed and when not, the spectrum analysis of the period is performed by high-speed Fourier transformation to display the period. On the basis of the calculated period and arithmetic data on a radius of gyration, a GM value is calculated and displayed on a part 40.
JP3491481A 1981-03-11 1981-03-11 Gm measuring device Granted JPS57149935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3491481A JPS57149935A (en) 1981-03-11 1981-03-11 Gm measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3491481A JPS57149935A (en) 1981-03-11 1981-03-11 Gm measuring device

Publications (2)

Publication Number Publication Date
JPS57149935A true JPS57149935A (en) 1982-09-16
JPS6345360B2 JPS6345360B2 (en) 1988-09-08

Family

ID=12427475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3491481A Granted JPS57149935A (en) 1981-03-11 1981-03-11 Gm measuring device

Country Status (1)

Country Link
JP (1) JPS57149935A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918628A (en) * 1985-12-18 1990-04-17 University Of Southampton Stability meter for floating objects
ES2242533A1 (en) * 2004-04-22 2005-11-01 Universidad Politecnica De Madrid Method of obtaining vessel stability parameters
US9156036B2 (en) 2010-12-14 2015-10-13 Citizen Holdings Co. Ltd. Method of separating workpieces from chips
WO2015178410A1 (en) * 2014-05-20 2015-11-26 流体テクノ株式会社 Transverse metacenter height estimation device and transverse metacenter height estimation method
CN108238218A (en) * 2018-02-05 2018-07-03 上海童玉电子科技有限公司 Inclinometer peculiar to vessel and inclination method
CN112046702A (en) * 2018-08-27 2020-12-08 株式会社救命 System, method, and program for predicting period of transverse wave

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918628A (en) * 1985-12-18 1990-04-17 University Of Southampton Stability meter for floating objects
ES2242533A1 (en) * 2004-04-22 2005-11-01 Universidad Politecnica De Madrid Method of obtaining vessel stability parameters
US9156036B2 (en) 2010-12-14 2015-10-13 Citizen Holdings Co. Ltd. Method of separating workpieces from chips
WO2015178410A1 (en) * 2014-05-20 2015-11-26 流体テクノ株式会社 Transverse metacenter height estimation device and transverse metacenter height estimation method
CN108238218A (en) * 2018-02-05 2018-07-03 上海童玉电子科技有限公司 Inclinometer peculiar to vessel and inclination method
CN112046702A (en) * 2018-08-27 2020-12-08 株式会社救命 System, method, and program for predicting period of transverse wave
CN112046702B (en) * 2018-08-27 2021-04-30 株式会社救命 System, method, and program for predicting period of transverse wave

Also Published As

Publication number Publication date
JPS6345360B2 (en) 1988-09-08

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