WO2004051209A1 - 動不釣合算定法及び動釣合試験装置 - Google Patents
動不釣合算定法及び動釣合試験装置 Download PDFInfo
- Publication number
- WO2004051209A1 WO2004051209A1 PCT/JP2003/014236 JP0314236W WO2004051209A1 WO 2004051209 A1 WO2004051209 A1 WO 2004051209A1 JP 0314236 W JP0314236 W JP 0314236W WO 2004051209 A1 WO2004051209 A1 WO 2004051209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dynamic
- rotating body
- vector
- dynamic unbalance
- unbalance
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000013598 vector Substances 0.000 claims abstract description 48
- 238000004364 calculation method Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 210000003739 neck Anatomy 0.000 description 7
- 238000013016 damping Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
- G01M1/08—Instruments for indicating directly the magnitude and phase of the imbalance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
- G01M1/22—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
Definitions
- the present invention relates to a method for calculating a dynamic unbalance vector of a rotating body.
- the original vibration vector (displacement, velocity, or acceleration) is determined by a bearing that receives centrifugal force due to unknown dynamic imbalance of the rotating body.
- a method is used to calculate the dynamic imbalance of the rotating body by calculating the measured values using a conversion coefficient method or the like. Disclosure of the invention
- the present invention eliminates the load required to stop, disassemble, add a test weight, assemble, test run, and measure the change in the vibration vector for multiple operations to calculate the conventional dynamic imbalance, Trial Calculation that can obtain the dynamic imbalance of the rotating body only by measuring the original vibration vector without adding a weight
- the purpose is to provide a method for determining
- the vibration vector values (displacement, velocity, or magnitude and angular position of the acceleration) measured by the bearings on both sides of the rotating body in the original operating state of the rotating body are collected in the shaft neck. From the viewpoint of the present invention that it corresponds to the dynamic unbalance centrifugal force of the rotating body, the calculation based on the vector diagram calculation method using the ratio of the bearing interval length to the corrected surface interval length gives the dynamic unbalance vector value (large And angular position).
- FIG. 1 is an image diagram showing an embodiment of the present invention.
- FIG. 3 is an image diagram in the case of aa2 of the dynamic unbalance vector calculation method of the present invention.
- Figure 4 shows an example of the case of a ⁇ a 2 dynamic unbalance base vector calculation method of the present invention.
- Fig. 1 shows a model of a rotating machine R, which is the most common type of rotating machine to which the present invention can be applied, supported horizontally by two bearings ⁇ 1 and ⁇ 2.
- the unbalance centrifugal force generated by the dynamic unbalance of the rotating body is transmitted to the shaft and neck force of the main shaft ( ⁇ shaft) of the rotating body R and the bearings # 1 and # 2, causing vibration in the bearings # 1 and # 2.
- the bearing vibrates the base vector value measured in the X-axis direction (displacement speed, the magnitude of the acceleration and the angular position) of the chi iota, and chi 2. This vibration vector is the displacement of the bearing (X
- Ci Viscous damping coefficient of bearings B1 and B2 [Ns / cm] ki
- 2 Spring constant of bearings B1 and B2 in the horizontal direction
- Equation 3-1 From the solution of Equation 3-1 the magnitude of the ratio unbalance e ⁇ , 2 is obtained by the following equation.
- ⁇ i Xi [cm] ---— 3-2
- the direction of the Fi, F 2 vector that is, the angular position of the rotating body with respect to the X axis (reference point): ⁇ 1, ⁇ 2 are Fi, F 2 (force) [ N] is obtained by capturing the delay angle: h i at the angular position [rad] of the measured vibration vector X 2 (displacement) with respect to [N].
- ai is given by the following equation.
- Both sides of the section b [cm] of the rotator R are two correction planes ⁇ and ⁇ (the correction plane interval length is b). Also, ⁇ The interval length from the correction surface to the bearings 1 and 2 on both sides shall be a1 and a2 [cm]. That is,
- Bearings and correction spacing length ratio ai: b: a 2 [ cm] - 5-1
- ai a 2 and F Fs, (the plane of FIG. 2, the Y direction of the surface intersecting the X-axis perpendicular Match, Z represents the direction perpendicular to the page)
- Figure 2 shows the F 1 and F 2 vector values [N] obtained by equations 1-4 or 2-1 and 3-2, converted to arbitrary unit lengths.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03812285A EP1586883A4 (en) | 2002-11-29 | 2003-11-10 | METHOD OF CALCULATING DYNAMIC IMBALANCE |
US10/535,438 US20060015270A1 (en) | 2002-11-29 | 2003-11-10 | Dynamic unbalance calculating method and dynamic unbalance testing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002/382751 | 2002-11-29 | ||
JP2002382751A JP4140380B2 (ja) | 2002-11-29 | 2002-11-29 | 動不釣合算定法及び動釣合試験装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004051209A1 true WO2004051209A1 (ja) | 2004-06-17 |
Family
ID=32463677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/014236 WO2004051209A1 (ja) | 2002-11-29 | 2003-11-10 | 動不釣合算定法及び動釣合試験装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060015270A1 (ja) |
EP (1) | EP1586883A4 (ja) |
JP (1) | JP4140380B2 (ja) |
WO (1) | WO2004051209A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060226696A1 (en) * | 2005-03-30 | 2006-10-12 | Jones Gordon B | Self-balancing wheel |
GB2438642B (en) | 2006-06-01 | 2008-04-09 | Rolls Royce Plc | Rotor unbalance correction |
CN103776587B (zh) * | 2014-01-28 | 2016-03-16 | 郭卫建 | 确定转子的不平衡量的方法 |
CN110285922B (zh) * | 2019-01-31 | 2020-11-13 | 上海卫星工程研究所 | 二维转台静不平衡测试建模方法 |
CN110146280B (zh) * | 2019-06-06 | 2024-03-12 | 西安交通大学 | 一种旋转机械动态力学量测量实验装置及实验方法 |
CN110501107B (zh) * | 2019-07-03 | 2021-02-19 | 上海卫星工程研究所 | 一种基于六维力测试仪的航天器旋转载荷动平衡量测量方法 |
CN111079569B (zh) * | 2019-11-29 | 2023-05-12 | 沈阳建筑大学 | 基于全相位fft法的主轴不平衡振动信号处理方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63286734A (ja) * | 1987-05-09 | 1988-11-24 | カール シエンク アクチエンゲゼル シヤフト | 修正の位置および大きさを決定する方法 |
JPH01142429A (ja) * | 1987-11-30 | 1989-06-05 | Shimadzu Corp | 動釣合試験機 |
JP2000221096A (ja) * | 1999-02-02 | 2000-08-11 | Yamato Scale Co Ltd | 釣合い試験機及び釣合い試験方法 |
JP2001141594A (ja) * | 1999-11-10 | 2001-05-25 | Shimadzu Corp | 動釣合試験装置およびその不釣合算出方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB744295A (en) * | 1952-01-23 | 1956-02-01 | Avery Ltd W & T | Unbalance compensation machine |
US5689543A (en) * | 1996-12-18 | 1997-11-18 | General Electric Company | Method for balancing rotatable anodes for X-ray tubes |
-
2002
- 2002-11-29 JP JP2002382751A patent/JP4140380B2/ja not_active Expired - Fee Related
-
2003
- 2003-11-10 WO PCT/JP2003/014236 patent/WO2004051209A1/ja active Application Filing
- 2003-11-10 US US10/535,438 patent/US20060015270A1/en not_active Abandoned
- 2003-11-10 EP EP03812285A patent/EP1586883A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63286734A (ja) * | 1987-05-09 | 1988-11-24 | カール シエンク アクチエンゲゼル シヤフト | 修正の位置および大きさを決定する方法 |
JPH01142429A (ja) * | 1987-11-30 | 1989-06-05 | Shimadzu Corp | 動釣合試験機 |
JP2000221096A (ja) * | 1999-02-02 | 2000-08-11 | Yamato Scale Co Ltd | 釣合い試験機及び釣合い試験方法 |
JP2001141594A (ja) * | 1999-11-10 | 2001-05-25 | Shimadzu Corp | 動釣合試験装置およびその不釣合算出方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1586883A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP2004184383A (ja) | 2004-07-02 |
EP1586883A1 (en) | 2005-10-19 |
EP1586883A4 (en) | 2006-09-20 |
JP4140380B2 (ja) | 2008-08-27 |
US20060015270A1 (en) | 2006-01-19 |
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