CN117606682A - VB language-based double-sided double-point rotor on-site dynamic balance method - Google Patents
VB language-based double-sided double-point rotor on-site dynamic balance method Download PDFInfo
- Publication number
- CN117606682A CN117606682A CN202311384334.9A CN202311384334A CN117606682A CN 117606682 A CN117606682 A CN 117606682A CN 202311384334 A CN202311384334 A CN 202311384334A CN 117606682 A CN117606682 A CN 117606682A
- Authority
- CN
- China
- Prior art keywords
- weight
- balance
- vibration
- rotor
- phase
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004364 calculation method Methods 0.000 claims abstract description 25
- 230000006870 function Effects 0.000 claims abstract description 14
- 238000012905 input function Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
- G01M1/14—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
-
- 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
- G01M1/30—Compensating imbalance
- G01M1/32—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Balance (AREA)
Abstract
The invention provides a VB-language-based double-sided double-point rotor on-site dynamic balance method, which comprises the following steps: step one, acquiring parameters required by on-site dynamic balance of a rotor, wherein the parameters comprise initial vibration values and phases of measuring points at two sides of the rotor, weight-showing mass and phases of a balance disc 1, vibration values and phases of the balance disc 1 after weight-showing, weight-showing mass and phases of a balance disc 2 and vibration values and phases of the balance disc 2 after weight-showing; and step two, establishing a field dynamic balance parameterization calculation tool. The parameterization calculation tool inputs the balance disc 1, the balance disc 2, the vibration value, the weight indication and the self-defined weight scheme information on a visual design interface, and can realize the output function of the weight scheme and the pre-estimated vibration value under the self-defined weight scheme. The method can realize the on-site dynamic balance of the off-line double-sided double-point rotor by utilizing the function carried by VB language, has the characteristic of flexible selection of vibration amplitude and phase information, realizes the on-site dynamic balance calculation of the visual rotary machine double-sided double-point rotor, and can greatly improve the on-site dynamic balance efficiency.
Description
Technical Field
The invention belongs to the technical field of rotary machinery, and particularly relates to a double-sided double-point rotor on-site dynamic balance method based on VB language.
Background
The rotor is an important part of the rotary machine and is used for energy conversion and driving ship propellers, generators, compressors, hydraulic dynamometers and other power consumption equipment.
In the processes of processing, manufacturing, assembling and the like of a rotary machine rotor, the rotor has unbalanced quality due to inconsistent material characteristics and processing and assembling errors. When the rotor rotates, unbalanced mass generates centrifugal disturbing force, and the disturbing force is transmitted to the casing and the base through the bearing to generate vibration, so that the service life of the equipment is reduced. For the rotor of the rotary machine, the excessive unbalance also causes the load applied to the moving blades and the bearings to be increased, and even causes the moving blades to be broken and the bearings to be damaged, thereby affecting the safe operation of the unit.
The general on-site dynamic balance analysis software in the market is integrated in a special vibration test system, and the system has the defects that software and hardware are bound, and on-site dynamic balance can only be carried out on a single rotating speed.
Disclosure of Invention
The invention aims to provide a double-sided double-point rotor on-site dynamic balance method based on VB language, which can perform on-site dynamic balance based on vibration data acquired by any vibration test equipment and realize on-site dynamic balance calculation of a visual rotary machine rotor by utilizing functions carried by VB language.
A VB language-based double-sided double-point rotor on-site dynamic balance method comprises the following steps:
s1, acquiring parameters required by rotor field dynamic balance, wherein the parameters comprise an initial vibration value and a phase, a weight indicating mass and a phase, and a vibration value and a phase after weight testing;
s1.1, arranging vibration sensors at supporting positions on two sides of a rotor, arranging rotor key phase sensors, numbering balance holes of flanges of a balance disc 1 and a balance disc 2, increasing the numbers along opposite directions of rotating speeds, and setting positions of the balance holes 1 and the balance disc 2 from 1 to 1 and 1 to N2 as phase zero points, wherein the phase calculation formulas of the positions of the other balance holes are as follows:
η s1i ＝(N1 i -1)*360/N1
η s2i ＝(N2 i -1)*360/N2
s1.2, starting the rotary machine, slowly rising to rated power from a slow vehicle, measuring vibration Bode diagrams of measuring points at two sides of each stable working condition, taking a vibration average value and a corresponding phase average value, and stopping;
s1.3, adding weight showing in a number 1 weight hole of the balance disc 1;
s1.4, starting the rotary machine, repeating the step S1.2, taking vibration averages and corresponding phase averages of measuring points at two sides of each stable working condition, and stopping;
s1.5, adding weight showing in a number 1 weight hole of the balance disc 2;
s1.6, starting the rotary machine, repeating the step S1.2, taking vibration averages and corresponding phase averages of measuring points at two sides of each stable working condition, and stopping;
s2, establishing a field dynamic balance parameterization calculation tool;
s2.1, establishing a graphical interface of a field dynamic balance parameterization computing tool in VB software, wherein the graphical interface comprises a balance disc information input area, a graphical display area, a weight indicating information input area, a vibration information input area, a computing result display area and a vibration value estimation area;
s2.2, programming a program code in VB software, and realizing the functions of inputting the weight ports and the radius information of the balance disc 1 and the balance disc 2 in the balance disc information input area;
s2.3, programming a program code in VB software, and realizing the display functions of the number of weight ports, the weight showing position, the rotating speed direction and the weight calculating position of the balance disc 1 and the balance disc 2 in a graphic display area;
s2.4, programming a program code in VB software, and realizing the input function of the weight quality and the position in a weight information input area;
s2.5, programming a program code in VB software, and realizing the input functions of initial vibration values and phases of measuring points at two sides and vibration values and phases after weight indication in a vibration information input area;
s2.6, programming a program code in VB software, respectively calculating and calculating a balance weight result by adopting an influence coefficient method through measuring point vibration and phase data at two sides, and calculating the final balance weight mass and phase of the balance disc 1 and the balance disc 2 by using a formula;
s2.7, programming a program code in VB software, and realizing the display function of dynamic balance quality and phase calculation results of the balance disc 1 and the balance disc 2 in a result display area;
s2.8, programming a program code in VB software, realizing the self-defined weight quality and phase input function in a vibration value estimation area, and completing the function of displaying the vibration values of measuring points at two sides according to the corresponding weight scheme.
Further, the vibration sensor in S1.1 may be an acceleration sensor disposed on a supporting casing on both sides of a rotor of the rotary machine, or may be a non-contact eddy current sensor disposed near both sides of the rotor.
Further, each stable working condition in the S1.2 stably runs for 10 minutes, and vibration average values of 5-10 minutes and corresponding phase average values are obtained.
Further, if the calculated showing weight is too large to be installed in the No. 1 weight port in S1.3, the showing weight can be installed on the No. 1 weight port and the No. 2 weight port, the weight and the phase of the newly added showing weight are obtained by using the formula, and the weight estimation quality calculation formula is initially shown:
m＝9549MG/r×n
wherein M is rotor quality, G is precision grade, r is correction radius, n is work rotation speed of the workpiece, and M is weight testing quality;
further, in S1.5, whether the weight indication of the balance disc 1 is removed when the weight indication is added to the weight indication hole No. 1 of the balance disc 2 may be determined, and the corresponding option is checked in the vibration information input area.
The invention has the beneficial effects that: the visual off-line rotor on-site dynamic balance can be realized by utilizing the function carried by VB language, on-site dynamic balance can be performed based on the vibration amplitude and phase information acquired by any vibration testing equipment, the vibration amplitude and phase information selection mode is flexible, the operation is simple, and the on-site dynamic balance efficiency can be greatly improved.
Drawings
FIG. 1 is a display interface after inputting weight information;
FIG. 2 is a display interface after vibration information is input and calculation is completed;
FIG. 3 is a display interface of the vibration prediction value after the input of the custom counterweight mass and phase.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, a double-sided double-point rotor on-site dynamic balance method based on VB language comprises the following steps:
step one, acquiring parameters required by rotor field dynamic balance, wherein the parameters comprise initial vibration values and phases of measuring points at two sides of a rotor, weights 1 and 2, and vibration values and phases after weights 1 and 2;
1) Arranging acceleration sensors on casings at two sides of a rotor of a rotary machine or arranging eddy current sensors near supports at two sides of the rotor, arranging key phase sensors on the rotor, numbering balance weight ports of flanges of balance plates 1 and 2, increasing the numbers along opposite directions of rotating speeds, sequentially adhering a reflective patch to the balance weight port 1 at the optical axis at the same angle from 1 to 1 and 1 to N2, setting the position of the balance weight port 1 of the balance plates 1 and 2 as a phase zero point, and setting the phase eta of other bolt positions si The relationship with the total number of bolts N and the number of bolts Ni is as follows:
η s1i ＝(N1 i -1)*360/N1 (1)
η s2i ＝(N2 i -1)*360/N2 (2)
2) Starting the rotary machine, slowly lifting the rotary machine to rated power from a slow car, measuring vibration Bode diagrams of measuring points at the two sides of a rotor under each stable working condition, stably running for 10 minutes under each stable working condition, taking the vibration average value of the measuring points at the two sides of the rotor and the corresponding phase average value of the rotor under the 5 th to 10 th minutes, and stopping;
3) The weight m is shown to be added to the number 1 weight hole of the balance disc 1 S1 If m is S1 Too large to be installed on the No. 1 weight hole, and the weight can be simultaneously installed on the No. 1 weight hole and the No. 2 weight hole to obtain the equivalent weight m of the weight indicated by the newly-added balance disc 1 S1 And phase eta s1 The weight calculation formula, the equivalent weight of the newly added weight and the phase calculation formula are as follows:
m＝9549MG/r×n (3)
wherein M is the rotor mass unit (kg), G is the precision grade, r is the correction radius unit (mm) of the balance disc 1, n is the working rotation speed unit (rpm), M S1 Weight mass unit (g) is shown for balance plate 1
Order the
When f < 0:
otherwise:
m S2 、η S2 the calculation method is same as m S1 、η S1 。
4) Starting the combustion engine, repeating the step 2), taking vibration average values and corresponding phase average values of measuring points at two sides of the rotor under the working conditions, and stopping.
5) The weight m is shown to be added to the number 1 weight hole of the balance disc 2 S2 If m is S2 Too large to be installed on the No. 1 weight hole, the weight can be simultaneously installed on the No. 1 weight hole and the No. 2 weight hole to obtain the equivalent weight m of the weight indicated by the newly added balance disc 2 S2 And phase eta s2 The weight calculation formula, the equivalent weight of the newly added weight, and the phase calculation are the same as formulas (4) to (6).
6) Starting the combustion engine, repeating the step 2), taking vibration average values and corresponding phase average values of measuring points at two sides of the rotor under the working conditions, and stopping.
Step two, establishing a field dynamic balance parameterization calculation tool;
1) Establishing a graphical interface of a field dynamic balance parameterization calculation tool in VB software, wherein the graphical interface comprises a balance disc information input area, a graphical display area, a weight information input area, a vibration information input area, a calculation result display area and a vibration value estimation area;
2) Program codes are written in VB software, and the balance disc 1, 2 weight hole number N1, N2 and radius information input function are realized in a balance disc information input area;
3) Programming a program code in VB software, and respectively displaying N1 and N2 evenly-divided hollow circles representing the weight ports in a display area after the weight ports and the radius are input in the information input areas of the balance discs 1 and 2; after the weight indicating information is input in the weight indicating information input area, filling a red solid circle in a hollow circle at a corresponding position; the hollow circle corresponding to the weight hole obtained by calculation after inputting all the information is filled with a green solid circle;
4) Programming a program code in VB software, after inputting the number N1 and N2 of the weight ports of the balance disc 1 and 2, respectively displaying the corresponding number, radius and angle information of the N1 and N2 weight ports in a weight indicating information input area, and respectively inputting weight indicating mass in the weight ports corresponding to the weight indicating mass;
5) Programming a program code in VB software, and realizing the input functions of initial vibration values and phases of measuring points on two sides of a rotor and vibration values and phases after weight indication in a vibration information input area;
6) Programming a program code in VB software, respectively calculating the weight balancing results calculated by the vibration measuring points on two sides corresponding to the weight showing points 1 and 2 through weight showing information of the weight balancing plates 1 and 2 and vibration and phase data of the measuring points on two sides by adopting an influence coefficient method, taking 2 times of the calculated weight maximum value as the maximum value mmax of the weight balancing plates 1 and 2, taking the weight balancing mass mmax/50 and 1 degree as the minimum resolution, and calculating the weight balancing mass and phase of the weight balancing plates 1 and 2 when the square sum of the vibration values of the measuring points 1 and 2 is minimum by adopting a circulation statement as the final weight balancing mass and phase of the weight balancing plates 1 and 2;
7) Program codes are written in VB software, the display functions of dynamic balance quality and phase calculation results are realized on the balance discs 1 and 2 in a result display area, weight is carried out on 2 weight ports simultaneously by default, and the weight calculation formula of the balance disc 1 is as follows:
when INT (eta) 1ZZ * N1/360+1) > N 1ZZ1 ＝INT(η 1ZZ *N1/360+1)-N1
Otherwise, N 1ZZ1 ＝INT(η 1ZZ *N1/360+1)
When N is 1ZZ1 When +1 > N1, N 1ZZ2 ＝N 1ZZ1 +1-N1
Otherwise, N 1ZZ2 ＝N 1ZZ1 +1
Let h=η 1ZZ -(INT(η 1ZZ *N1/360+1)-1)*360/N1)*π/180
Let g=360/N1×pi/180-h
When h=0, m 1ZZ2 ＝0
Otherwise, m 1ZZ2 ＝m 1ZZ /(sin(g)/tan(h)+cos(g))
When h=0, m 1ZZ1 ＝m 1ZZ
Otherwise, m 1ZZ1 ＝m 1ZZ2 ×sin(g)/sin(h)
The balance weight calculation method of the balance disc 2 is the same as that of the balance disc 1.
8) Program codes are written in VB software, the self-defined weight mass and phase input function is realized in a vibration value estimated area, and the function of displaying vibration values of measuring points at two sides of the corresponding weight scheme is completed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A double-sided double-point rotor on-site dynamic balance method based on VB language is characterized by comprising the following steps:
s1, acquiring parameters required by rotor field dynamic balance, wherein the parameters comprise an initial vibration value and a phase, a weight indicating mass and a phase, and a vibration value and a phase after weight testing;
s1.1, arranging vibration sensors at supporting positions on two sides of a rotor, arranging rotor key phase sensors, numbering balance holes of flanges of a balance disc 1 and a balance disc 2, increasing the numbers along opposite directions of rotating speeds, and setting positions of the balance holes 1 and the balance disc 2 from 1 to 1 and 1 to N2 as phase zero points, wherein the phase calculation formulas of the positions of the other balance holes are as follows:
η s1i ＝(N1 i -1)*360/N1
η s2i ＝(N2 i -1)*360/N2
s1.2, starting the rotary machine, slowly rising to rated power from a slow vehicle, measuring vibration Bode diagrams of measuring points at two sides of each stable working condition, taking a vibration average value and a corresponding phase average value, and stopping;
s1.3, adding weight showing in a number 1 weight hole of the balance disc 1;
s1.4, starting the rotary machine, repeating the step S1.2, taking vibration averages and corresponding phase averages of measuring points at two sides of each stable working condition, and stopping;
s1.5, adding weight showing in a number 1 weight hole of the balance disc 2;
s1.6, starting the rotary machine, repeating the step S1.2, taking vibration averages and corresponding phase averages of measuring points at two sides of each stable working condition, and stopping;
s2, establishing a field dynamic balance parameterization calculation tool;
s2.1, establishing a graphical interface of a field dynamic balance parameterization computing tool in VB software, wherein the graphical interface comprises a balance disc information input area, a graphical display area, a weight indicating information input area, a vibration information input area, a computing result display area and a vibration value estimation area;
s2.2, programming a program code in VB software, and realizing the functions of inputting the weight ports and the radius information of the balance disc 1 and the balance disc 2 in the balance disc information input area;
s2.3, programming a program code in VB software, and realizing the display functions of the number of weight ports, the weight showing position, the rotating speed direction and the weight calculating position of the balance disc 1 and the balance disc 2 in a graphic display area;
s2.4, programming a program code in VB software, and realizing the input function of the weight quality and the position in a weight information input area;
s2.5, programming a program code in VB software, and realizing the input functions of initial vibration values and phases of measuring points at two sides and vibration values and phases after weight indication in a vibration information input area;
s2.6, programming a program code in VB software, respectively calculating and calculating a balance weight result by adopting an influence coefficient method through measuring point vibration and phase data at two sides, and calculating the final balance weight mass and phase of the balance disc 1 and the balance disc 2 by using a formula;
s2.7, programming a program code in VB software, and realizing the display function of dynamic balance quality and phase calculation results of the balance disc 1 and the balance disc 2 in a result display area;
s2.8, programming a program code in VB software, realizing the self-defined weight quality and phase input function in a vibration value estimation area, and completing the function of displaying the vibration values of measuring points at two sides according to the corresponding weight scheme.
2. The on-site dynamic balance method of a double-sided double-point rotor based on VB language according to claim 1, wherein the vibration sensor in S1.1 can be an acceleration sensor arranged on supporting casings at two sides of a rotor of a rotary machine or a non-contact eddy current sensor arranged near the supports at two sides of the rotor.
3. The on-site dynamic balance method of the double-sided double-point rotor based on VB language according to claim 1, wherein each stable working condition in S1.2 operates stably for 10 minutes, and vibration average values of 5-10 minutes and corresponding phase average values are obtained.
4. The on-site dynamic balance method of a double-sided double-point rotor based on the VB language according to claim 1, wherein if the calculated showing weight is too large to be installed in the No. 1 weight hole in the S1.3, the showing weight can be installed on the No. 1 weight hole and the No. 2 weight hole, the weight and the phase of the newly added showing weight can be obtained by using a formula, and the weight estimated quality calculation formula is initially shown:
m＝9549MG/r×n
wherein M is rotor mass, G is precision grade selection, r is correction radius, n is work rotation speed of the workpiece, and M is weight test mass.
5. The on-site dynamic balancing method for the double-sided double-point rotor based on the VB language according to claim 1, wherein in the step S1.5, when the weight of the balance disc 2 is increased by the weight hole No. 1, whether the weight of the balance disc 1 is removed or not can be judged, and corresponding options are checked in a vibration information input area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384334.9A CN117606682A (en) | 2023-10-24 | 2023-10-24 | VB language-based double-sided double-point rotor on-site dynamic balance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384334.9A CN117606682A (en) | 2023-10-24 | 2023-10-24 | VB language-based double-sided double-point rotor on-site dynamic balance method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117606682A true CN117606682A (en) | 2024-02-27 |
Family
ID=89958612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311384334.9A Pending CN117606682A (en) | 2023-10-24 | 2023-10-24 | VB language-based double-sided double-point rotor on-site dynamic balance method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117606682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118275038A (en) * | 2024-05-31 | 2024-07-02 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Birotor phase-change field dynamic balance method based on optimization algorithm |
-
2023
- 2023-10-24 CN CN202311384334.9A patent/CN117606682A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118275038A (en) * | 2024-05-31 | 2024-07-02 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Birotor phase-change field dynamic balance method based on optimization algorithm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117606682A (en) | VB language-based double-sided double-point rotor on-site dynamic balance method | |
| CN102928222B (en) | Method for testing and identifying dynamic characteristic coefficients of sliding bearing | |
| CN110579312B (en) | Dynamic balance fault detection method for multi-wheel-disc shafting of non-trial-weight rotating machinery | |
| CN106768642A (en) | A kind of dissection type automatic balancing arrangement for realizing rotating machinery on line auto balancing | |
| JP4772594B2 (en) | Low-speed balance method and low-speed balance enforcement device for rotating equipment | |
| CN110118632A (en) | By the method for the degree of unbalancedness of displacement sensor axis elastic rotor | |
| CN109115408B (en) | Dynamic balance test method of large hydroelectric generating set based on centrifugal force equation | |
| CN109029689A (en) | A kind of rotating machinery vibration analysis method based on two ends of rotor motion profile | |
| CN113432789A (en) | Online testing device and method for dynamic balance weight of rotary machine | |
| CN111044277A (en) | Fault diagnosis system and method for pump station unit | |
| CN111678689A (en) | Elastic ring supporting rotor system inherent characteristic test bed and measuring method thereof | |
| CN113063343B (en) | Rotating shaft crack detection method based on strain signal waveform distortion evaluation | |
| CN113623279A (en) | Method for treating low-frequency vibration of fan | |
| CN117606681A (en) | Rotor on-site dynamic balance method based on VB language | |
| CN111024312A (en) | Impeller fan on-site dynamic balance method | |
| CN117686141A (en) | Single-sided double-point rotor on-site dynamic balance method based on VB language | |
| CN110905731B (en) | Dynamic balance method of wind power generator | |
| Guo et al. | Dynamic balancing of multispeed multidisk rotor | |
| CN114894486A (en) | Device and method for testing dynamic flexibility of casing based on rotary excitation | |
| CN114235318A (en) | Multifunctional vibration test bench | |
| WO2021105776A1 (en) | System and method for positive balancing of rotors | |
| CN118408733B (en) | Flexible support dynamic stiffness testing device, system and method for gas turbine | |
| CN117606683A (en) | On-site dynamic balance method for turbine rotor based on EXCEL supercritical power | |
| CN117606680A (en) | Double-sided on-site dynamic balance method for power output shaft system with elastic coupling | |
| CN117606679A (en) | Non-phase on-site dynamic balance method of power output shafting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |