CN104156042A - Design method for controlling running vibration of mainboard through shock pad - Google Patents
Design method for controlling running vibration of mainboard through shock pad Download PDFInfo
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- CN104156042A CN104156042A CN201410395591.7A CN201410395591A CN104156042A CN 104156042 A CN104156042 A CN 104156042A CN 201410395591 A CN201410395591 A CN 201410395591A CN 104156042 A CN104156042 A CN 104156042A
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Abstract
The invention discloses a design method for controlling the running vibration of a mainboard through a shock pad. Through a vibration testing instrument, vibration test points are arranged in different positions of the mainboard for a test, the test point with highest vibration acceleration is found out according to test data, and the shock pad is installed in the position of the test point. The method is remarkably characterized in that the mainboard in Rack nodes is tested actually, the chip position with the most serious vibration on the mainboard is found through the data found in the test, the large rigid vibration is reduced to reasonable vibration through a damping washer, and therefore the vibration risks of the mainboard in the running process can be reduced.
Description
Technical field
The present invention relates to computer server system design field, be specifically related to a kind of method for designing of utilizing beam to control mainboard operation vibrations.
Technical background
Rack (rack-mount server) is in the product of having supplied, the situation that has occurred mainboard VR job insecurity, the VR job stability of mainboard concerns the operation of whole system, when VR does not normally export, server master board just there will be the situation of powered-off fault, the phenomenon that also there will be mainboard to damage, cannot start shooting when situation is more serious.In the analytical test of complete machine cabinet, the analysis investigation to node, finds that the mainboard damaging has a general character: the abnormal output of the VR of mainboard CPU0.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of method for designing of utilizing beam to control mainboard operation vibrations is provided.
By the comparative analysis of other types, in the vibration acceleration investigation of node, the VR oscillatory acceleration of CPU0 is higher, therefore need to reduce by the vibrations of taking the measure of damping to guarantee that mainboard is received, guarantees that the chip operation on mainboard is stable.
The technical solution adopted in the present invention is:
A kind of method for designing of utilizing beam to control mainboard operation vibrations, the instrument shaking by test, at mainboard diverse location, vibration test point is set and tests, according to test data, find out the test point that oscillatory acceleration is the highest, in this test point position, beam is installed.
Utilize beam to control mainboard operation vibrations, backboard at mainboard is pasted highly suitable beam, then utilize the elasticity of beam, when the vibrations that produce after system is moved are delivered to mainboard, by damping and flexible principle, reduce the vibrations dynamics that mainboard is received, thereby mainboard can moved under environment more stably.
The height of described beam is identical with the height of mainboard below double-screw bolt.
Beam is in the selection of height, in order can better to play a role, beam height has been selected the packing ring of same height, when the vibroseis of system transmits shaking force, damping washer and double-screw bolt around play the effect of support simultaneously, the impact strength down that chip is received will be absorbed by packing ring, and the elasticity of packing ring has also avoided the rigidity of subduing to damping dynamics in damping process to damage simultaneously.
Complete machine cabinet is investigated, confirmed more accurately vibration data, and confirm the vibrations difference of different node locations in complete machine cabinet system.
By oscillation point, investigate, confirmed position hidden danger, in order to confirm more accurately vibration data, and confirm the vibrations difference of different node locations in complete machine cabinet system, complete machine cabinet is investigated.Can test every a node, find out maximum vibration acceleration value and corresponding frequency.
Beneficial effect of the present invention is: notable feature of the present invention is to carry out actual test by the mainboard in Rack node, utilize the data of finding in test, find the most severe chip position of vibrations on mainboard, then utilize the application of damping washer, larger rigidity vibrations are reduced to rational vibrations, thereby reduce the vibrations risk of mainboard in operational process.
Accompanying drawing explanation
Fig. 1 is tighten up a screw hole and vibration-testing point layout (in figure, circle represents screw hole position, and ellipse represents vibration-testing point, digitized representation test point numbering) of mainboard;
Fig. 2 is test point vibration acceleration test chart;
Fig. 3 is the vibration-testing table (for the VR data of confirmation of synchronization CPU1, also the data of CPU1 VR having been carried out to test analysis) of the different node locations of complete machine cabinet;
Fig. 4 is for being used the test data contrast table of damping washer and inapplicable damping washer.
Embodiment
With reference to the accompanying drawings, by embodiment, the present invention is further described:
A kind of method for designing of utilizing beam to control mainboard operation vibrations, the instrument shaking by test, at mainboard diverse location, vibration test point is set and tests, according to test data, find out the test point that oscillatory acceleration is the highest, in this test point position, beam is installed.
The instrument of described test vibration uses dynamic signal analyzer, 8 passage dynamic signal analyzers--FOCUS II DCA, the instrument of being produced by U.S. LDS Test And Measurement Inc., be mainly used in vibration analysis test, have 8 passages, the Vibration Condition that can simultaneously measure 8 diverse locations on server, carries out check analysis.Its frequency measurement scope---acceleration analysis frequency range: 1Hz-10kHz; Measure numerical range _ acceleration analysis scope: 0.01-199.9m/s2.
Described vibration-testing point is chosen: in the topological analysis of mainboard, consider the relation between vibrations and screw: the position close with screw, fixing also tighter, away from the position of screw, the vibration amplitude of bearing is also just larger.As shown in Figure 1.
As shown in Figure 2, from test data analysis, at the middle part of mainboard,, away from the test point of screw hole position, the data of oscillatory acceleration are also maximum, and the risk of bearing in system operational process is also just larger; And the mainboard repair of damaging at curstomer's site is analyzed, the chip position that CPU0 VR not have normal output is also near 6 and 7 position in the layout of Fig. 1, so need to carry out vibration proof processing to the chip in this region.
By above-mentioned oscillation point, investigate, confirmed that (6 and 7 position in Fig. 1 layout, as passage 1 for the position of CPU0 VR, U18) hidden danger, in order to confirm more accurately vibration data, the vibrations difference of different node locations in complete machine cabinet system, therefore investigates complete machine cabinet.For 9 position in VR(Fig. 1 layout of confirmation of synchronization CPU1, as passage 2, U24) data, have also carried out test analysis the data of CPU1 VR, and test result as shown in Figure 3.
In the VR chip bottom of CPU0 and the CPU1 of mainboard, three beams are installed.
By the actual use test table of above-mentioned test analysis and use damping washer, as shown in Figure 4, can find out, increase beam and have certain effect to improving the vibration of mainboard.
Claims (3)
1. one kind is utilized beam to control the method for designing that mainboard operation shakes, it is characterized in that: the instrument shaking by test, at mainboard diverse location, vibration test point is set and tests, according to test data, find out the test point that oscillatory acceleration is the highest, in this test point position, beam is installed.
2. a kind of method for designing of utilizing beam to control mainboard operation vibrations according to claim 1, is characterized in that: the height of described beam is identical with the height of mainboard below double-screw bolt.
3. a kind of method for designing of utilizing beam to control mainboard operation vibrations according to claim 1 and 2, is characterized in that: complete machine cabinet is investigated, confirmed more accurately vibration data, and confirm the vibrations difference of different node locations in complete machine cabinet system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395591.7A CN104156042A (en) | 2014-08-12 | 2014-08-12 | Design method for controlling running vibration of mainboard through shock pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395591.7A CN104156042A (en) | 2014-08-12 | 2014-08-12 | Design method for controlling running vibration of mainboard through shock pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104156042A true CN104156042A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410395591.7A Pending CN104156042A (en) | 2014-08-12 | 2014-08-12 | Design method for controlling running vibration of mainboard through shock pad |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070239700A1 (en) * | 2006-04-11 | 2007-10-11 | Ramachandran Puthukode G | Weighted Determination in Configuration Management Systems |
| CN101587454B (en) * | 2008-05-19 | 2011-08-24 | 联想(北京)有限公司 | Computer, computer vibration-reducing method and computer heat dissipation module |
| CN102662457A (en) * | 2012-03-30 | 2012-09-12 | 浪潮电子信息产业股份有限公司 | Server resonance weakening method |
| US20130061682A1 (en) * | 2011-09-08 | 2013-03-14 | Inventec Corporation | Shock test device |
| CN203133715U (en) * | 2013-03-21 | 2013-08-14 | 浪潮电子信息产业股份有限公司 | Device for preventing vibration of server hard disk |
| CN203149464U (en) * | 2012-12-31 | 2013-08-21 | 浪潮(北京)电子信息产业有限公司 | Vibration-proof hard disk bracket |
-
2014
- 2014-08-12 CN CN201410395591.7A patent/CN104156042A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070239700A1 (en) * | 2006-04-11 | 2007-10-11 | Ramachandran Puthukode G | Weighted Determination in Configuration Management Systems |
| CN101587454B (en) * | 2008-05-19 | 2011-08-24 | 联想(北京)有限公司 | Computer, computer vibration-reducing method and computer heat dissipation module |
| US20130061682A1 (en) * | 2011-09-08 | 2013-03-14 | Inventec Corporation | Shock test device |
| CN102662457A (en) * | 2012-03-30 | 2012-09-12 | 浪潮电子信息产业股份有限公司 | Server resonance weakening method |
| CN203149464U (en) * | 2012-12-31 | 2013-08-21 | 浪潮(北京)电子信息产业有限公司 | Vibration-proof hard disk bracket |
| CN203133715U (en) * | 2013-03-21 | 2013-08-14 | 浪潮电子信息产业股份有限公司 | Device for preventing vibration of server hard disk |
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Application publication date: 20141119 |