CN205175642U - Bilayer and individual layer vibration isolation system vibration test bench with adjustable - Google Patents
Bilayer and individual layer vibration isolation system vibration test bench with adjustable Download PDFInfo
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- CN205175642U CN205175642U CN201520994991.XU CN201520994991U CN205175642U CN 205175642 U CN205175642 U CN 205175642U CN 201520994991 U CN201520994991 U CN 201520994991U CN 205175642 U CN205175642 U CN 205175642U
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Abstract
The utility model discloses a bilayer and individual layer vibration isolation system vibration test bench with adjustable. Including vibration source equipment, dynamic vibration absorber, equipment isolator, the raft body, basic isolator, basic frame, T type groove, vibration testing system, converter, the basis isolator is installed between the raft body and basic frame, and the equipment isolator is installed between the vibration source equipment and the raft body, install dynamic vibration absorber on the vibration source equipment and/or the raft body. The utility model discloses a simulating basic isolator, equipment isolator, dynamic vibration absorber's installation environment and operational environment, gathering the vibration signal, acquire isolator, dynamic vibration absorber's dynamic characteristic parameter, the analysis subtracts the vibration isolation performance, and the analysis has / vibration insertion loss during nos dynamic vibration absorber foresees and inhales the performance of shaking. The utility model discloses can carry out double -deck isolator and dynamic vibration absorber's performance test simultaneously, can gather and analysis vibrational acceleration, displacement and power signal to and the loading force that isolator and dynamic vibration absorber transmitted.
Description
Technical field
The utility model relates to the vibration test technical field subtracting vibrating isolation system.
Background technology
Vibration is one of the most general phenomenon of nature, and in many cases, vibration is considered to negative factor.Such as, vibration can affect precision equipment machining precision, aggravation component fatigue and wearing and tearing, shortens machine service life; Vibration also may cause the large deformation of structure to destroy, and causes the accident; Also can affect people at car and boat, cabin and machine operation place etc. the comfortableness under environment, even endanger the health of people.
Vibration damping has two kinds of measures usually, and one is the appropriate design by plant equipment, reduces the vibration of equipment self.Two is absorb and separating vibration on route of transmission, thus the energy that minimizing mechanical vibration of trying one's best outwards are propagated.The normal vibration adopting the method for passive vibration isolation to reduce plant equipment at present, namely various isolation mounting is installed between vibration source and pedestal, as single-layer partiting polarization device, double-deck Buoyant Raft Shock-resistant System etc., dynamic vibration absorber can also be installed on equipment and pedestal, absorb and consumer device vibrational energy.If insert a spring-mass element in single-layer partiting polarization system, just become a double-layer vibration isolating system, it is primarily of two-layer vibration isolator and middle raft body composition, and middle raft weight and the vibration isolating effect that can be affected double-layer vibration isolating system by the ratio of device for vibration insutation quality.Compared to single-layer partiting polarization system, the vibration isolating effect of double-layer vibration isolating system is more superior, is applicable to the field strictly controlled vibration noise requirement.
Vibration isolator and dynamic vibration absorber are the conventional measures for controlling vibration source vibration and reduction vibration passing, jointly form one with vibration source equipment and pedestal and subtract vibrating isolation system, this system has high requirements to the isoparametric Proper Match tool of quality, rigidity and damping when designing.In order to accurately test subtracts the dynamic property of vibrating isolation system and subtracts vibration isolating effect, carry out vibration test to realize by building test-bed in laboratory.Vibration table is for the testing equipment in experiment lab simulation indeed vibrations environmental effect, in order to the assembling of double-layer vibration isolating system and dynamic vibration absorber system, exciting and Test Data Collecting can be realized, polytype vibration isolator and bump leveller can be common to again simultaneously, its special and strict requirement is built to testing table.
Excitation refers to the external force (or other inputs) of the system of acting on, and makes system produce response in some way.Response refers to the output quantity of system.Transport refers to the response of system forced vibration and the dimensionless complex ratio of excitation.Vibration transfer ratio
trefer to the ratio of the component vibration before the component vibration after vibration isolation and vibration isolation.Vibration isolation rate
η=(1-
t) * 100%.
Prior art relates generally to the isolation mounting for solving concrete vibration problem, but not for subtracting the universal test stand of vibrating isolation system, and the parameters such as the quality of most technical scheme, barycenter, rigidity and installation site can not regulate.Such as publication No. is the Business Machine equipment elasticity basis buoyant raft shock-resistant system of CN102644694A, and publication No. is a kind of floating raft type double-layer isolation device of CN201103649Y, be installed in the plant equipment of real ship or heat exchange station, be made up of two-layer vibration isolator and middle raft body, after design typification, lack the function of systematic parameter adjustment, the specific vibration isolator under specific occasion can only be applied to, more not possess the function of universal test bench.Be that the mass-adjustable of CN200949633Y is than double-layer vibration isolating device at notification number, it regulates to realize intermediate mass by loading graininess or powdered substance in quality cavity, although possess the function of adjusting raft weight, but this part mass is not rigidly connected integral with raft body, synchronously vibrational energy can not be born with raft body under dither environment, meeting influential system vibration passing and power distribution properties, and this device is design for a certain application equally, equipment quality, excited frequency, raft body size, the parameter such as housing rigidity and vibration isolator can not regulate, dynamic vibration absorber performance test can not be used for, thus can not use as universal test stand.
There is following shortcoming in prior art:
1. prior art is the isolation mounting being applied to some specific occasion, under being installed on plant equipment normal operation environment, can not use as the general vibration table in laboratory;
2. can not carry out the performance test of double-layered isolator and dynamic vibration absorber simultaneously;
3. raft body size, quality and barycenter can not regulate;
4. vibration source equipment quality and excited frequency can not regulate;
5. the rigidity of foundation framework can not regulate;
6. prior art is after design typification, is only applicable to the vibration isolator of a certain class fixed interface size, and can not be applicable to the vibration isolator of multiple distinct interface size;
7. prior art not involving vibrations testing apparatus, more can not test the loading force that vibration isolator transmits.
Utility model content
The utility model provides a kind of adjustable double-deck and single-layer partiting polarization system vibration testing table, it can carry out the performance test of double-layer vibration isolating system and dynamic vibration absorber system, both can assay anti-vibration performance or absorbing performance, also can instruct and checking for the matching and debugging of systematic parameter and optimal design provide.
The technical solution of the utility model is: a kind of adjustable double-deck vibrating isolation system vibration table, comprises vibration source equipment, dynamic vibration absorber, equipment vibration isolator, raft body, isolation-base, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is positioned at above foundation framework; Vibration source equipment is positioned at above raft body; Isolation-base is arranged between raft body and foundation framework, and equipment vibration isolator is arranged between vibration source equipment and raft body; Vibration source equipment and/or raft body are provided with dynamic vibration absorber.
Described adjustable double-deck vibrating isolation system vibration table also comprise for gather vibration signal with analysis subtract the vibration test system of anti-vibration performance and the frequency converter being connected vibration source equipment.
Vibration source equipment comprises vibration source, vibration source base plate, equipment counterweight, equipment rack; Equipment counterweight is arranged on equipment rack, and vibration source base plate is arranged on equipment counterweight, and vibration source is arranged on vibration source base plate; Described vibration source adopts variant-frequency vibration motor or vibrator; Equipment counterweight is formed by stacking by multilayer mass; Described vibration source, vibration source base plate, equipment counterweight and equipment rack are bolted into an entirety; Equipment vibration isolator is arranged between equipment rack and raft body; Dynamic vibration absorber comprises dynamic vibration absorber one and dynamic vibration absorber two, and dynamic vibration absorber one is bolted mode or bonding way is arranged on vibration source base plate, and dynamic vibration absorber two is arranged on raft body by bolt connecting mode or bonding way.
Raft body comprises the large raft body and little raft body that are linked together side by side by bolt, and large raft body and little raft body are provided with the large counterweight of raft body and raft body miniweights; Raft body inside is provided with several for loading the cavity of the large counterweight of raft body or raft body miniweights, the large counterweight of raft body or be bolted connection between raft body miniweights and raft body; Raft body is provided with several mounting hole site for erecting equipment vibration isolator or isolation-base; Dynamic vibration absorber comprises dynamic vibration absorber one and dynamic vibration absorber two, and dynamic vibration absorber one is bolted mode or bonding way is arranged on vibration source equipment, and dynamic vibration absorber two is arranged on large raft body or little raft body by bolt connecting mode or bonding way.
Described adjustable double-deck vibrating isolation system vibration table also comprises rebound assembly, described rebound assembly comprises rebound assembly one and rebound assembly two, and rebound assembly one comprises and is connected to the above and below upper rebound one of equipment vibration isolator and lower rebound one; Rebound assembly two comprises and is connected to the above and below upper rebound two of isolation-base and lower rebound two; Equipment vibration isolator is fastenedly connected by upper rebound one and vibration source equipment, be fastenedly connected with raft body by lower rebound one; Be equipped with lifting device below vibration source equipment He below raft body, described lifting device is lifting jack, for carrying out quick-detachment and replacing to equipment vibration isolator or isolation-base under adjustable double-deck vibrating isolation system vibration table overall package state; Isolation-base is fastenedly connected by upper rebound two and raft body, be fastenedly connected with foundation framework by lower rebound two.
The junction of the junction of the junction of the junction of described vibration source equipment and equipment vibration isolator or the junction of equipment vibration isolator and raft body, isolation-base and raft body or the junction of isolation-base and foundation framework, dynamic vibration absorber and vibration source equipment, dynamic vibration absorber and raft body is provided with force snesor; The vibration source equipment of described next-door neighbour's equipment vibration isolator and raft body, the raft body being close to isolation-base and foundation framework, the vibration source equipment being close to dynamic vibration absorber or raft body, dynamic vibration absorber mass are all provided with vibration acceleration sensor or displacement transducer; Described foundation framework is connected by bolt or flexible member with T-slot, and described flexible member is caoutchouc elasticity backing plate, steel spring or air spring.
A kind of adjustable monolayer device vibration isolator system vibration testing table, comprises vibration source equipment, dynamic vibration absorber, equipment vibration isolator, raft body, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is arranged on foundation framework; Vibration source equipment is positioned at above raft body; Equipment vibration isolator is arranged between vibration source equipment and raft body, and vibration source equipment and/or raft body are provided with dynamic vibration absorber.
A kind of adjustable individual layer isolation-base system vibration testing table, comprises vibration source equipment, dynamic vibration absorber, raft body, isolation-base, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is positioned at above foundation framework; Vibration source equipment is arranged on raft body; Isolation-base is arranged between raft body and foundation framework, and vibration source equipment and/or raft body are provided with dynamic vibration absorber.
A kind of adjustable double-deck vibrating isolation system vibration testing method, set gradually foundation framework from bottom to up, raft body and vibration source equipment, isolation-base is arranged between foundation framework and raft body, equipment vibration isolator is arranged between raft body and vibration source equipment, dynamic vibration absorber is arranged on raft body and vibration source equipment, analog basis vibration isolator, equipment vibration isolator, the installation environment of dynamic vibration absorber and working environment, gather vibration signal, obtain isolation-base, equipment vibration isolator, the dynamic characteristic parameter of dynamic vibration absorber, analysis subtracts anti-vibration performance and system frequency, analyze with/without vibration insertion loss during dynamic vibration absorber, prediction absorbing performance.
Described adjustable double-deck vibrating isolation system vibration testing method, adopts above-mentioned adjustable double-deck vibrating isolation system vibration table to test, comprises the following steps:
Step one: install adjustable double-deck vibrating isolation system vibration table:
A, installation foundation frame: T-slot placed, be installed in T-slot by foundation framework by bolt;
B, installation foundation vibration isolator: isolation-base is fastenedly connected with foundation framework by lower rebound two, then rebound two on installing on isolation-base;
C, installation raft body: large raft body and little raft body are mounted by means of bolts on upper rebound two, and large raft body and little raft body are linked together side by side by bolt, large raft body and little raft body have been bolted connection the large counterweight of raft body or raft body miniweights, and raft body is placed in the middle part of raft body miniweights, raft body near two ends and is placed the large counterweight of raft body;
D, erecting equipment vibration isolator: equipment vibration isolator is fastenedly connected with raft body by lower rebound one, then installs rebound one on equipment vibration isolator;
E, installation vibration source equipment: equipment rack is fastenedly connected by bolt and upper rebound one, erecting equipment counterweight on equipment rack, equipment counterweight is installed vibration source base plate, vibration source base plate installs vibration source, vibration source, vibration source base plate, equipment counterweight and equipment rack are bolted into an entirety;
F, sensor installation: in the junction of the junction of vibration source equipment and equipment vibration isolator or equipment vibration isolator and raft body, the junction of the junction of isolation-base and raft body or isolation-base and foundation framework, the junction of dynamic vibration absorber and vibration source equipment, dynamic vibration absorber and raft body junction installing force sensor; Vibration acceleration sensor or displacement transducer are installed in the positions such as the vibration source equipment of next-door neighbour's equipment vibration isolator and raft body, the raft body being close to isolation-base and foundation framework, the vibration source equipment being close to dynamic vibration absorber or raft body, dynamic vibration absorber;
G, installation vibration test system and frequency converter: frequency converter is connected vibration source equipment; Vibration test system is installed and connects;
Step 2: start adjustable double-deck vibrating isolation system vibration table, the exciting force size of vibration source is regulated by vibrator power amplifier or variant-frequency vibration motor eccentric massblock, and the vibration frequency of operation of vibration source is regulated by frequency converter, implement fixed frequency, frequency sweep, frequency multiplication or random excitation, gather vibration signal by vibration test system again, obtain the dynamic characteristic parameter of isolation-base, equipment vibration isolator, dynamic vibration absorber;
Step 3: by the natural frequency subtracting anti-vibration performance and vibrating isolation system of vibration test system analysis foundation vibration isolator and equipment vibration isolator; Analyze the natural frequency with/without vibration insertion loss during dynamic vibration absorber and dynamic absorber system, prediction absorbing performance; Complete adjustable double-deck vibrating isolation system vibration test.
Advantage of the present utility model: be 1. not limited to specific occasion, can use as the general vibration table in laboratory.2. can carry out the performance test of double-layered isolator and dynamic vibration absorber simultaneously.3. namely can be used as double-layer vibration isolating system to use, also can be assembled into single-layer partiting polarization system and use.4. raft body size, raft weight, the raft physique heart, vibration source equipment quality, exciting force size, direction of excitation, excited frequency, foundation framework rigidity all can regulate.5. be rigidly connected between counterweight and raft body, not influential system vibration passing and energy distribution.6. containing transition connecting apparatus, vibration isolator and the dynamic vibration absorber of multiple distinct interface size can be applicable to, and installation quantity and installation site can regulate.7. contain vibration test equipment, can gather and analyze vibration acceleration, displacement, rotating speed and force signal, and the loading force that vibration isolator and dynamic vibration absorber transmit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable double-deck vibrating isolation system vibration table in the utility model embodiment.
Fig. 2 is the raft body inner structure schematic diagram in the utility model embodiment.
Fig. 3 is the mounting structure schematic diagram of the rebound assembly one in the utility model embodiment.
Fig. 4 is the mounting structure schematic diagram of the rebound assembly two in the utility model embodiment.
Description of reference numerals: vibration source 1, vibration source base plate 2, equipment counterweight 3, equipment rack 4, dynamic vibration absorber 1, upper rebound 1, equipment vibration isolator 7, lower rebound 1, large raft body 9, little raft body 10, the large counterweight of raft body 11, raft body miniweights 12, dynamic vibration absorber 2 13, upper rebound 2 14, isolation-base 15, lower rebound 2 16, foundation framework 17, T-slot 18.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figures 1 to 4, a kind of adjustable double-deck vibrating isolation system vibration table, mainly comprises vibration source 1, vibration source base plate 2, equipment counterweight 3, equipment rack 4, dynamic vibration absorber 1, upper rebound 1, equipment vibration isolator 7, lower rebound 1, large raft body 9, little raft body 10, the large counterweight of raft body 11, raft body miniweights 12, dynamic vibration absorber 2 13, upper rebound 2 14, isolation-base 15, lower rebound 2 16, foundation framework 17, T-slot 18, frequency converter and vibration test system.Wherein, dynamic vibration absorber 1, equipment vibration isolator 7, dynamic vibration absorber 2 13, isolation-base 15, by test specimen, can replace not same piece or type according to test needs.
As shown in Figure 1, vibration source 1, vibration source base plate 2, between equipment counterweight 3 and equipment rack 4, be rigidly connected into parts by bolt, be used for simulating quality and the frequency of operation of actual machine equipment, wherein vibration source 1 can adopt variant-frequency vibration motor to realize, and also can adopt professional vibrator to realize; Equipment counterweight 3 is formed by stacking by multilayer mass, and its weight can regulate according to the load-bearing requirements situation of equipment vibration isolator 7.Dynamic vibration absorber 1 is arranged on vibration source base plate 2 by bolt or the mode such as bonding, is used for control machine vibration equipment, and is evaluated performance parameter and the shock attenuation result of dynamic vibration absorber by vibration test.As shown in figures 1 and 3, rebound assembly one comprises and is connected to the above and below upper rebound one of equipment vibration isolator and lower rebound one.Equipment vibration isolator 7 is fastenedly connected with equipment rack 4 by upper rebound 1, and be fastenedly connected with large raft body 9 or little raft body 10 by lower rebound 1, being used for xegregating unit vibration outwards transmits, and pass through performance parameter and the vibration isolating effect of vibration test valuator device vibration isolator, wherein go up rebound 1 to play transition with lower rebound 1 the adapter effect be connected is installed, multiple distinct interface size vibration isolator can be met install, also can need to redesign and change according to new installation.In addition, designed by mounting interface, the quantity of equipment vibration isolator and installation site can realize regulating.Below equipment rack 4, use the lifting devices such as lifting jack by the lifting of vibration source equipment, facilitate the installation and removal of equipment vibration isolator.Installing force sensor between upper rebound 1 and equipment vibration isolator 7, can the dynamic load size transmitted of testing apparatus vibration isolator and spectral characteristic.
As shown in Figure 2, raft body forms (formation raft body assembly by large raft body 9, little raft body 10, the large counterweight 11 of raft body and raft body miniweights 12, i.e. raft body), large raft body 9, little raft body 10, to be fastenedly connected by bolt rigidity between the large counterweight 11 of raft body and raft body miniweights 12, also two raft bodies can be split come and be used alone, thus have the raft body of three kinds of different specification sizes available and use.Counterweight has the counterweight of 2 kinds of size specifications: the large counterweight 11 of raft body and raft body miniweights 12, can realize weight coarse adjustment and fine tuning.Raft body inner space is divided into a lot of cavitys, counterweight is optionally loaded in inside, raft body puts raft body miniweights, the large counterweight of middle placement raft body near two ends, thus can significantly adjusting raft weight, also can the centroid position of adjusting raft body, and be fastenedly connected by bolt assembly between each counterweight and raft body, to ensure counterbalance mass and raft weight under vibration for overall.Reserved multiple vibration isolator (comprising equipment vibration isolator and isolation-base) position of mounting hole on raft body, installs quantity and position can change as required.As shown in Figure 1, dynamic vibration absorber 2 13 is arranged on large raft body 9 or little raft body 10 by bolt or the mode such as bonding, is used for controlling the vibration of raft body, and evaluates performance parameter and the shock attenuation result of dynamic vibration absorber by vibration test.
The parameters such as raft body size/quality/barycenter, vibration source equipment quality/frequency/amplitude, foundation framework support stiffness can realize regulating; The type of equipment vibration isolator, isolation-base and dynamic vibration absorber, quantity is installed and position can change.
As shown in Figure 1 and Figure 4, rebound assembly two comprises and is connected to the above and below upper rebound two of isolation-base and lower rebound two.Isolation-base 15 is fastenedly connected with large raft body 9 or little raft body 10 by upper rebound 2 14, and be fastenedly connected with foundation framework 17 by lower rebound 2 16, be used for isolating the vibration of raft body to transmit to basis, and performance parameter and the vibration isolating effect of isolation-base is evaluated by vibration test, wherein go up rebound 2 14 to play transition with lower rebound 2 16 the adapter effect be connected is installed, multiple distinct interface size vibration isolator can be met install, also can need to redesign and change according to new installation.In addition, designed by mounting interface, the quantity of isolation-base and installation site can realize regulating.Below large raft body 9 and little raft body 10, use the lifting devices such as lifting jack by the lifting of raft body, facilitate the installation and removal of isolation-base.Between upper rebound 2 14 and isolation-base 15, dynamic force sensor is installed, dynamic load size and spectral characteristic that isolation-base 15 transmits can be tested.
As shown in Figure 1, in order to the rigidity of foundation framework 17 can be regulated, the connected mode of foundation framework and T-slot 18 can adopt bolt to be rigidly connected as required, the flexible member of required rigidity also can be adopted to connect, such as caoutchouc elasticity backing plate, steel spring, air spring etc.
When carrying out vibration test, at vibration source equipment, vibration isolator (comprising equipment vibration isolator and isolation-base) upper and lower side, dynamic vibration absorber (comprising dynamic vibration absorber one and dynamic vibration absorber two) mass, raft body, vibration acceleration sensor or displacement transducer are installed in the positions such as foundation framework, and in equipment vibration isolator and equipment rack junction (or equipment rack and raft body junction), isolation-base and raft body junction (or isolation-base and foundation framework junction), dynamic vibration absorber and the position installing force sensor such as frame (comprising foundation framework and equipment rack) or raft body junction.The exciting force size of vibration source 1 is regulated by impeller power amplifier or variant-frequency vibration motor eccentric massblock, and the vibration frequency of operation of vibration source 1 is regulated by frequency converter, can implement to determine frequency, frequency sweep, frequency multiplication or random excitation, vibration signal is gathered again by vibration test system, thus analyze vibrating isolation system and dynamic vibration absorber system subtract anti-vibration performance, and to instruct and checking for the matching and debugging of systematic parameter, Algorithm of Active Control debugging and optimal design provide.
The utility model possesses vibration isolator performance test function, can be assembled into buoyant raft double-layered isolator system and tests, and now raft body is between two-layer vibration isolator (equipment vibration isolator and isolation-base); Also can be assembled into monolayer device vibration isolator system to test, now raft body and foundation framework are rigidly connected; Can also be assembled into individual layer isolation-base system to test, now vibration source equipment and raft body are rigidly connected.
The utility model possesses dynamic vibration absorber performance test function, and dynamic vibration absorber can be arranged on vibration source equipment under-chassis, also can be arranged on raft body.The system core parameter of vibration table can realize regulating, and comprises vibration source equipment quality, exciting force size, direction of excitation, excited frequency, raft body specification, raft weight, the raft physique heart, housing rigidity.The removable point raft body (large raft body or little raft body) of two kinds of specifications that is divided into of raft body uses, and also can be assembled into raft body and use.Counterweight can be loaded in raft body inside, and quality and barycenter can significantly regulate.The installation quantity of vibration isolator and dynamic vibration absorber and installation site all can realize regulating.Be furnished with force snesor in the junction of vibration isolator and raft body or frame, and arrange force snesor in the junction of dynamic vibration absorber and frame or raft body, the power that vibration isolator or bump leveller transmit can be tested, analytic system transmissibility.By transition connecting plate (rebound assembly) design, make testing table can be applicable to the multiple vibration isolator of distinct interface Dimension Types or the installation of dynamic vibration absorber.
The utility model is for prior art shortcoming, propose new solution, relate to a kind of vibration test table apparatus subtracting vibrating isolation system, particularly relate to a kind of double-deck buoyant raft shock-resistant system testing table, the parameter such as quality, barycenter, rigidity, frequency of this pilot system can realize regulating, can combine or split into the raft body of three kinds of different sizes, vibration test equipment is equipped with, the performance test of double-layered isolator and dynamic vibration absorber can be carried out simultaneously, also can be applicable to the vibration isolator of distinct interface size and bearing capacity.
Table apparatus involved by the utility model can simulate the installation environment of the equipment vibration isolators such as boats and ships, vehicle, Wind turbine, for single-layer partiting polarization device and double-deck floating raft vibration isolation device system etc. are provided examination mounting condition by test specimen, the drive characteristic of the equipment such as simulated machine, pump, obtain the dynamic characteristic parameter such as natural frequency, dynamic stiffness, damping of vibrating isolation system, analysis transport, vibration isolation rate, shake grade drop, an insertion loss etc. subtract anti-vibration performance.Examination mounting condition and analog stimulus can also be provided for dynamic vibration absorber by test specimen, obtain the dynamic characteristic parameters such as natural frequency, dynamic stiffness, damping ratio, analyze with/without vibration insertion loss during bump leveller, prediction absorbing performance.Can also instruct and checking for the matching and debugging of systematic parameter, Algorithm of Active Control debugging and optimal design provide, improve the success ratio of active/passive damping element exploitation.
Below only illustrate a specific embodiment, as long as but utilize principle of device of the present utility model, constructing plan tests, no matter scheme is what shape, size, all within protection domain of the present utility model.
Claims (7)
1. an adjustable double-deck vibrating isolation system vibration table, is characterized in that, comprises vibration source equipment, dynamic vibration absorber, equipment vibration isolator, raft body, isolation-base, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is positioned at above foundation framework; Vibration source equipment is positioned at above raft body; Isolation-base is arranged between raft body and foundation framework, and equipment vibration isolator is arranged between vibration source equipment and raft body; Vibration source equipment and/or raft body are provided with dynamic vibration absorber.
2. adjustable double-deck vibrating isolation system vibration table according to claim 1, is characterized in that, also comprises and subtracts the vibration test system of anti-vibration performance and the frequency converter being connected vibration source equipment for gathering vibration signal with analysis.
3. adjustable double-deck vibrating isolation system vibration table according to claim 1, is characterized in that, vibration source equipment comprises vibration source, vibration source base plate, equipment counterweight, equipment rack; Equipment counterweight is arranged on equipment rack, and vibration source base plate is arranged on equipment counterweight, and vibration source is arranged on vibration source base plate; Described vibration source adopts variant-frequency vibration motor or vibrator; Equipment counterweight is formed by stacking by multilayer mass; Described vibration source, vibration source base plate, equipment counterweight and equipment rack are bolted into an entirety; Equipment vibration isolator is arranged between equipment rack and raft body; Dynamic vibration absorber comprises dynamic vibration absorber one and dynamic vibration absorber two, and dynamic vibration absorber one is bolted mode or bonding way is arranged on vibration source base plate, and dynamic vibration absorber two is arranged on raft body by bolt connecting mode or bonding way.
4. adjustable double-deck vibrating isolation system vibration table according to claim 1, it is characterized in that, also comprise rebound assembly, described rebound assembly comprises rebound assembly one and rebound assembly two, and rebound assembly one comprises and is connected to the above and below upper rebound one of equipment vibration isolator and lower rebound one; Rebound assembly two comprises and is connected to the above and below upper rebound two of isolation-base and lower rebound two; Equipment vibration isolator is fastenedly connected by upper rebound one and vibration source equipment, be fastenedly connected with raft body by lower rebound one; Be equipped with lifting device below vibration source equipment He below raft body, described lifting device is lifting jack, for carrying out quick-detachment and replacing to equipment vibration isolator or isolation-base under adjustable double-deck vibrating isolation system vibration table overall package state; Isolation-base is fastenedly connected by upper rebound two and raft body, be fastenedly connected with foundation framework by lower rebound two.
5. adjustable double-deck vibrating isolation system vibration table according to claim 1, it is characterized in that, the junction of the junction of the junction of the junction of described vibration source equipment and equipment vibration isolator or the junction of equipment vibration isolator and raft body, isolation-base and raft body or the junction of isolation-base and foundation framework, dynamic vibration absorber and vibration source equipment, dynamic vibration absorber and raft body is provided with force snesor; The vibration source equipment of described next-door neighbour's equipment vibration isolator and raft body, the raft body being close to isolation-base and foundation framework, the vibration source equipment being close to dynamic vibration absorber or raft body, dynamic vibration absorber mass are all provided with vibration acceleration sensor or displacement transducer; Described foundation framework is connected by bolt or flexible member with T-slot, and described flexible member is caoutchouc elasticity backing plate, steel spring or air spring.
6. an adjustable monolayer device vibration isolator system vibration testing table, is characterized in that, comprise vibration source equipment, dynamic vibration absorber, equipment vibration isolator, raft body, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is arranged on foundation framework; Vibration source equipment is positioned at above raft body; Equipment vibration isolator is arranged between vibration source equipment and raft body, and vibration source equipment and/or raft body are provided with dynamic vibration absorber.
7. an adjustable individual layer isolation-base system vibration testing table, is characterized in that, comprise vibration source equipment, dynamic vibration absorber, raft body, isolation-base, foundation framework, T-slot; Described foundation framework is arranged in T-slot, and described raft body is positioned at above foundation framework; Vibration source equipment is arranged on raft body; Isolation-base is arranged between raft body and foundation framework, and vibration source equipment and/or raft body are provided with dynamic vibration absorber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520994991.XU CN205175642U (en) | 2015-12-03 | 2015-12-03 | Bilayer and individual layer vibration isolation system vibration test bench with adjustable |
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| CN201520994991.XU CN205175642U (en) | 2015-12-03 | 2015-12-03 | Bilayer and individual layer vibration isolation system vibration test bench with adjustable |
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| CN106323651A (en) * | 2016-07-28 | 2017-01-11 | 重庆长安汽车股份有限公司 | Adjustable dynamic vibration absorber inherent frequency test bench |
| CN106546399A (en) * | 2016-12-06 | 2017-03-29 | 上海机电工程研究所 | It is a kind of while simulating the vibration experiment of angular oscillation and linearly coupled |
| CN106768540A (en) * | 2016-12-23 | 2017-05-31 | 苏州东菱智能减振降噪技术有限公司 | A kind of damping efficiency test platform |
| CN106840559A (en) * | 2015-12-03 | 2017-06-13 | 株洲时代新材料科技股份有限公司 | A kind of adjustable individual layer and double-layer vibration isolating system vibration mechine and test method |
| CN107314932A (en) * | 2017-06-16 | 2017-11-03 | 河海大学 | Modularization fatigue test place and corollary apparatus, fatigue test method |
| CN108760208A (en) * | 2018-07-13 | 2018-11-06 | 华南理工大学 | A kind of active vibration control testing stand |
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2015
- 2015-12-03 CN CN201520994991.XU patent/CN205175642U/en not_active Expired - Fee Related
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| CN108760208A (en) * | 2018-07-13 | 2018-11-06 | 华南理工大学 | A kind of active vibration control testing stand |
| CN108760208B (en) * | 2018-07-13 | 2023-12-15 | 华南理工大学 | Vibration active control test bed |
| RU203608U1 (en) * | 2020-09-08 | 2021-04-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Test stand for vibration isolators of a vehicle cabin |
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