JPS6470395A - Displacement calculation method of floating roof in floating roof tank - Google Patents

Displacement calculation method of floating roof in floating roof tank

Info

Publication number
JPS6470395A
JPS6470395A JP62221875A JP22187587A JPS6470395A JP S6470395 A JPS6470395 A JP S6470395A JP 62221875 A JP62221875 A JP 62221875A JP 22187587 A JP22187587 A JP 22187587A JP S6470395 A JPS6470395 A JP S6470395A
Authority
JP
Japan
Prior art keywords
floating roof
periphery
angular
calculated
degree
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
JP62221875A
Other languages
Japanese (ja)
Other versions
JPH0585434B2 (en
Inventor
Kazuo Ishida
Osamu Asai
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP62221875A priority Critical patent/JPS6470395A/en
Publication of JPS6470395A publication Critical patent/JPS6470395A/en
Publication of JPH0585434B2 publication Critical patent/JPH0585434B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To easily measure vertical displacement at the periphery of a floating roof by determining angular displacement of the floating roof on which a plurality of sensors for angular velocity or angular acceleration are equipped to integrate with time the detected signals from them. CONSTITUTION:Detected signals of a sensor 5, mounted on the center of a floating roof 4 and also sensors 52-54 mounted at every 45-degree on the periphery of the floating roof 4 are recorded once in a data recorder to analyse earthquake data taken out after an earthquake occurs. For the analyses, first, angular velocity (angular acceleration) detected by sensors 51-54 is once (or twice) integrated with time to calculate angular displacement. Next, a vertical displacement Y0=gamma/sintheta1 (gamma: radius of the floating roof 4) of the periphery of the floating roof in 0 degree direction is calculated from an angulardisplacement theta1 of the sensor 51 and an angular displacement theta2 of the sensor 52. Correction coefficient C1, C2 is previously calculated to compute Y0 from a formula (1), taking consideration of a deflection of the floating roof 4. The maximum vertical displacement is calculated in the same manner from the vertical displacement Y45, Y90 calculated on the floating roof periphery in the both directions of 45-degree and 90-degree.
JP62221875A 1987-09-07 1987-09-07 Displacement calculation method of floating roof in floating roof tank Granted JPS6470395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221875A JPS6470395A (en) 1987-09-07 1987-09-07 Displacement calculation method of floating roof in floating roof tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221875A JPS6470395A (en) 1987-09-07 1987-09-07 Displacement calculation method of floating roof in floating roof tank

Publications (2)

Publication Number Publication Date
JPS6470395A true JPS6470395A (en) 1989-03-15
JPH0585434B2 JPH0585434B2 (en) 1993-12-07

Family

ID=16773552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221875A Granted JPS6470395A (en) 1987-09-07 1987-09-07 Displacement calculation method of floating roof in floating roof tank

Country Status (1)

Country Link
JP (1) JPS6470395A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005219772A (en) * 2004-02-05 2005-08-18 Ishikawajima Harima Heavy Ind Co Ltd Strength evaluation method for tank floating roof
WO2009121169A1 (en) * 2008-03-31 2009-10-08 Syscor Research & Development Inc. Apparatus for the wireless remote monitoring of storage tank roofs
US8094187B2 (en) 2002-05-22 2012-01-10 Assembleon N.V. Method of placing a component by means of a placement device at a desired position on a substrate holder, and device suitable for performing such a method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8094187B2 (en) 2002-05-22 2012-01-10 Assembleon N.V. Method of placing a component by means of a placement device at a desired position on a substrate holder, and device suitable for performing such a method
JP2005219772A (en) * 2004-02-05 2005-08-18 Ishikawajima Harima Heavy Ind Co Ltd Strength evaluation method for tank floating roof
WO2009121169A1 (en) * 2008-03-31 2009-10-08 Syscor Research & Development Inc. Apparatus for the wireless remote monitoring of storage tank roofs

Also Published As

Publication number Publication date
JPH0585434B2 (en) 1993-12-07

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