CN103470680B - Inertial mass energy-storage type vibration damping equipment - Google Patents
Inertial mass energy-storage type vibration damping equipment Download PDFInfo
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- CN103470680B CN103470680B CN201310422409.8A CN201310422409A CN103470680B CN 103470680 B CN103470680 B CN 103470680B CN 201310422409 A CN201310422409 A CN 201310422409A CN 103470680 B CN103470680 B CN 103470680B
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Abstract
The invention discloses a kind of inertial mass energy-storage type vibration damping equipment, traditional vibration isolator (3) is composed in parallel by spring A (1) and damper A (2), be composed in series novel vibration isolator (4) by inertial mass accumulator (6) and spring B (5), inertial mass energy-storage type vibration damping equipment is composed in parallel by traditional vibration isolator (3) and novel vibration isolator (4).The present invention, when vibration damping equipment working space is constant, greatly can improves outstanding vibration characteristics of improving quality, the overall performance of vibration damping equipment is increased dramatically.In addition, compact structure of the present invention, the basis of traditional passive absorber is improved a little, maturation theory and the process engineering of traditional passive absorber can be made full use of, and do not need complicated controller, control strategy and electronic parts and components, do not need energy to input, cost is low, and reliability is high.
Description
Technical field
The present invention relates to vibration damping and vibration isolation technique field, specifically refer to the vibration damping equipment be made up of inertial mass accumulator, spring and damper.
Background technique
The major function of vibration damping equipment improves outstanding vibration characteristics of improving quality, and while this function of execution, also vibration damping equipment working space must be controlled in allowed limits.Tradition passive absorber is by spring and damper parallel connection, and this structural type, from determining to have one-hundred-year history so far, never has breakthrough.In traditional passive absorber, on the one hand, adopt softer spring can obtain good vibration characteristics, on the other hand, vibration characteristics is but always to sacrifice vibration damping equipment working space be cost.For alleviating this contradiction, active and half active damper are there is.Active damper due to complex structure, poor reliability, low-response, energy consumption is high, cost is high, its research only rests on theory stage.Half active damper energy consumption is low, but the existence of Time Delay limits the performance of its performance, and commercialization is still needed the long period.Passive absorber structure is simple, with low cost, reliable in function, still has higher Research Significance and construction value in present stage.
The vibration damping equipment of mechanical system and the eliminator of electricity system have similarity, and function is all the unwanted frequencies in decay input signal.Inertial mass accumulator is exactly similarity based on Mechatronic Systems and the complete similar corresponding mechanical component of a kind of and capacitor introduced.Its appearance makes the electricity component of the mechanical elements of mechanical vibration insulating system and eliminator can be perfect corresponding, thus makes the structural type of passive vibration isolation device have diversity as eliminator.
Chinese patent 200810123830.8 discloses a kind of inertial mass energy-storage type suspension frame structure.By inertial mass accumulator and damper parallel connection, spring and the parallel connection of another damper, then by two paralleling mechanisms series connection.In theory, this suspension effectively can alleviate the contradiction between riding comfort and driving safety, but in actual application, the doublet of inertial mass accumulator and damper, be easy to lose efficacy because of " puncturing " under car body Action of Gravity Field, damping property after inefficacy and traditional isolation mounting indifference, and moment of failure can produce larger impact.In order to the problem that the doublet solving inertial mass accumulator and damper lost efficacy because of " puncturing ", Chinese patent 201010281331.9 pairs of said structures improve, a spring in parallel at the doublet two ends of inertial mass accumulator and damper, efficiently solve " puncturing " Problem of Failure, but parallel springs makes vibration damping usefulness decline to some extent, and complicated structure, difficulty in installation and layout, as long as wherein one-level doublet lost efficacy, whole device cannot normally work.
Along with the develop rapidly of industrial technology, vibration source intensity improves constantly, but but more and more stricter to the restriction of vibration, and low-carbon (LC), environmental protection, the energy-conservation trend becoming current development in science and technology.Tradition passive absorber has gone through century-old development, and theoretical ripe, reliable performance, with low cost, the appearance of inertial mass accumulator, makes passive vibration damping be provided with larger development potentiality.Therefore, in the urgent need to a kind of superior performance in engineering, and the new type of passive vibration damping equipment of traditional isolation mounting mature technology can be made full use of.
Summary of the invention
Technical problem to be solved by this invention is: on traditional vibration damping equipment basis of spring and damper parallel connection, increase inertial mass accumulator, under the prerequisite that vibration damping equipment working space is constant, improve outstanding vibration characteristics of improving quality to greatest extent, and the existing ripe theoretical and production technology of traditional passive absorber can be made full use of.
The technological scheme that the present invention solves this technical problem employing is: spring A and damper A composes in parallel traditional vibration isolator, inertial mass accumulator and spring B are composed in series novel vibration isolator, and traditional vibration isolator and novel vibration isolator are composed in parallel inertial mass energy-storage type vibration damping equipment.
The concrete technological scheme of the present invention comprises traditional vibration isolator and novel vibration isolator.
Tradition vibration isolator comprises spring A and damper A, and spring A and damper A is in parallel.Novel vibration isolator comprises inertial mass accumulator and spring B, inertial mass accumulator and spring B series connection.Tradition vibration isolator and novel vibration isolator compose in parallel inertial mass energy-storage type vibration damping equipment.
Compared with traditional passive absorber, the invention has the beneficial effects as follows:
1, inertial energy-accumulating formula vibration damping equipment can suppress the resonance of system, especially in low frequency part.
2, inertial energy-accumulating formula vibration damping equipment can alleviate outstanding contradiction of improving quality between vibration characteristics and working space, and outstanding vibration characteristics of improving quality has clear improvement, but vibration damping equipment working stroke does not increase.
Above-mentioned two advantages determine this vibration damping equipment and be obviously better than traditional vibration damping equipment in performances, and in addition, this apparatus structure letter is compact, and do not need complicated controller, control strategy and electronic parts and components, do not need energy to input, cost is low, and reliability is high.
Accompanying drawing explanation
Fig. 1 is traditional passive absorber structural representation
Fig. 2 is inertial mass energy-storage type damping device structure schematic diagram
Fig. 3 is two-degree-of-freedom vibration isolating system model figure
Fig. 4 is for adopting the inertial mass energy-storage type vibration damping equipment shown in Fig. 2 as the second level isolation mounting shown in Fig. 3, with when adopting the traditional vibration damping equipment shown in Fig. 1 as second level isolation mounting shown in Fig. 3, the amplitude versus frequency characte contrast schematic diagram of outstanding improve quality acceleration and vibration damping equipment working stroke
In figure, the outstanding 8-second level vibration damping equipment 9-that improves quality of 1-spring A2-damper A3-tradition vibration isolator 4-novel vibration isolator 5-spring B 6-inertial mass accumulator 7-hangs quality 10-first order vibration damping equipment 11-dynamic excitation
Embodiment
Below in conjunction with accompanying drawing and two-degree-of-freedom vibration isolating example, the present invention is further illustrated.
The present invention includes traditional vibration isolator (3) and novel vibration isolator (4).
Tradition vibration isolator (3) is traditional vibration damping equipment, comprises spring A (1) and damper A (2), spring A (1) and damper A (2) in parallel, as shown in Figure 1.
Novel vibration isolator (4) comprises inertial mass accumulator (6) and spring B (5), inertial mass accumulator (6) and spring B (5) series connection.
Inertial mass energy-storage type vibration damping equipment is composed in parallel by above-mentioned traditional vibration isolator (3) and novel vibration isolator (4), as shown in Figure 2.
Inertial mass accumulator (6) way of realization in the present invention has multiple, gear rack inertial mass accumulator (Rackandpinioninerter can be adopted, see U. S. Patent 7316303B2), ball screw inertial mass accumulator (Ballscrewinerter, see U. S. Patent 2009/0108510A1) and hydraulic inertia quality accumulator (Hydraulicinerter is shown in U. S. Patent 2009/0139225A1) in one.
Fig. 3 is two-degree-of-freedom vibration isolating system model, by outstanding improving quality (7), second level vibration damping equipment (8), the quality that hangs (9), first order vibration damping (10), and the part such as dynamic excitation (11) composition.
Fig. 4 adopts vibration damping equipment shown in Fig. 2 as the second level isolation mounting (8) shown in Fig. 3, with when adopting the traditional vibration damping equipment shown in Fig. 1 as second level isolation mounting (8) shown in Fig. 3, the amplitude versus frequency characte contrast schematic diagram of outstanding improve quality acceleration and vibration damping equipment working stroke.As can be seen from Figure 4, adopt the inertial energy-accumulating formula isolation mounting shown in Fig. 2 as second level isolation mounting, when being subject to low-frequency excitation, the amplitude of outstanding improve quality acceleration and vibration damping equipment working stroke has obvious reduction, and effectiveness in vibration suppression is significantly increased.
When other conditions are identical, as reaching the performance index close with two-stage series connection type inertial mass energy-storage type suspension disclosed in above-mentioned Chinese patent 200810123830.8 during suspension frame structure, and there is clear superiority in the present invention in the following areas:
1, remain traditional vibration isolator that spring A (1) and damper A (2) are in parallel, make its two ends bear static load, thus effectively prevent inertial mass accumulator and lost efficacy because of " puncturing ", have more engineer applied value.
2, traditional vibration isolator is in parallel with novel vibration isolator, compact structure, the basis of traditional isolation mounting setting type is improved a little, can continue to use existing ripe theoretical method and process engineering.
3, traditional vibration isolator is in parallel with novel vibration isolator, improve the reliability of vibration damping equipment, even if novel vibration isolator lost efficacy, the vibration damping usefulness of spring A (1) and damper A (2) traditional vibration damping equipment in parallel can also be retained.
In sum, structure of the present invention is simple, and reliability is high, although change less to traditional vibration damping equipment, when vibration damping equipment working space remains unchanged, and can be greatly
Improve outstanding vibration characteristics of improving quality, the overall performance of vibration damping equipment is increased dramatically.
Claims (1)
1. an inertial mass energy-storage type vibration damping equipment, it is characterized in that by inertial mass accumulator, spring A, spring B and damper A form, its medi-spring A (1) and damper A (2) is in parallel, form traditional vibration isolator (3), inertial mass accumulator (6) and spring B (5) series connection, form novel vibration isolator (4), described traditional vibration isolator (3) is in parallel with novel vibration isolator (4), described vibration damping equipment is as second level isolation mounting, when being subject to low-frequency excitation, the amplitude of outstanding improve quality acceleration and vibration damping equipment working stroke can be reduced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310422409.8A CN103470680B (en) | 2013-09-17 | 2013-09-17 | Inertial mass energy-storage type vibration damping equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422409.8A CN103470680B (en) | 2013-09-17 | 2013-09-17 | Inertial mass energy-storage type vibration damping equipment |
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| Publication Number | Publication Date |
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| CN103470680A CN103470680A (en) | 2013-12-25 |
| CN103470680B true CN103470680B (en) | 2015-11-25 |
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| CN201310422409.8A Active CN103470680B (en) | 2013-09-17 | 2013-09-17 | Inertial mass energy-storage type vibration damping equipment |
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| CN105715735B (en) * | 2016-03-02 | 2018-01-16 | 江苏大学 | The controllable vibrating isolation system of a kind of stiffness and damping and inertia force and its control method |
Citations (6)
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|---|---|---|---|---|
| DE10306228A1 (en) * | 2003-02-13 | 2004-09-02 | Sachsenring Fahrzeugtechnik Gmbh | Actuator for active chassis control has final control element for compensating rocking and pitching movements that also reduces lifting movement of vehicle body in accordance with sky hook principle |
| US7631736B2 (en) * | 2005-12-10 | 2009-12-15 | Zf Friedrichshafen Ag | Actuator for an active chassis of a motor vehicle |
| CN102494071A (en) * | 2011-11-15 | 2012-06-13 | 江苏大学 | Passive vibration isolation system for dampers of ceilings and sheds |
| CN102619921A (en) * | 2012-04-13 | 2012-08-01 | 江苏大学 | Shock absorber device with shunt-wound inertial container and damping |
| CN202923334U (en) * | 2012-05-07 | 2013-05-08 | 上海华普汽车有限公司 | Suspension system |
| CN203656040U (en) * | 2013-09-17 | 2014-06-18 | 中国北方车辆研究所 | Inertial mass energy accumulation type damping device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0116424D0 (en) * | 2001-07-04 | 2001-08-29 | Univ Cambridge Tech | Mechanical device |
| DE102005059116A1 (en) * | 2005-12-10 | 2007-08-16 | Zf Friedrichshafen Ag | Active chassis for a motor vehicle |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10306228A1 (en) * | 2003-02-13 | 2004-09-02 | Sachsenring Fahrzeugtechnik Gmbh | Actuator for active chassis control has final control element for compensating rocking and pitching movements that also reduces lifting movement of vehicle body in accordance with sky hook principle |
| US7631736B2 (en) * | 2005-12-10 | 2009-12-15 | Zf Friedrichshafen Ag | Actuator for an active chassis of a motor vehicle |
| CN102494071A (en) * | 2011-11-15 | 2012-06-13 | 江苏大学 | Passive vibration isolation system for dampers of ceilings and sheds |
| CN102619921A (en) * | 2012-04-13 | 2012-08-01 | 江苏大学 | Shock absorber device with shunt-wound inertial container and damping |
| CN202923334U (en) * | 2012-05-07 | 2013-05-08 | 上海华普汽车有限公司 | Suspension system |
| CN203656040U (en) * | 2013-09-17 | 2014-06-18 | 中国北方车辆研究所 | Inertial mass energy accumulation type damping device |
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