CN211042646U - Six-degree-of-freedom vibration simulation device with different surface configurations - Google Patents
Six-degree-of-freedom vibration simulation device with different surface configurations Download PDFInfo
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- CN211042646U CN211042646U CN201921180791.5U CN201921180791U CN211042646U CN 211042646 U CN211042646 U CN 211042646U CN 201921180791 U CN201921180791 U CN 201921180791U CN 211042646 U CN211042646 U CN 211042646U
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Abstract
The utility model relates to the technical field of vibration control, and discloses a six-degree-of-freedom vibration simulation device with a different surface configuration, which comprises actuator branches, an upper platform, a lower platform and a control system, wherein the actuator branches are divided into six branches and are used for providing accurate and controllable output force for the system; the upper platform is used for providing a rigid mechanical mounting table for the test piece and observing the simulated vibration signal through the measured acceleration signal; the lower platform is used for providing a stable installation foundation for the system; the control system calculates a control signal through the acquired six-degree-of-freedom acceleration signal of the upper platform, and outputs the control signal to the power amplifier so as to drive the actuator to output axial telescopic motion and push the upper platform to generate an expected simulated vibration signal. The utility model discloses a vibration analog system of six degrees of freedom has the six degrees of freedom motion ability by a relatively large margin, can produce the vibration analog signal of six degrees of freedom at most.
Description
Technical Field
The utility model relates to a vibration control technical field specifically relates to a six degrees of freedom vibration analogue means of different face configuration can be used to simulate the vibration signal that precision instrument received under various environment.
Background
The high-precision load, the precision instrument and the like are inevitably interfered by mechanical vibration from a carrying tool or the outside in the task execution process, and the characteristics of multi-freedom linear-angular vibration coupling, coexistence of high-frequency vibration and low-frequency vibration and the like are presented, so that the control precision and the stability level of the equipment are greatly influenced, and the working state of the equipment under the multi-freedom complex vibration interference and debugging under the laboratory (internal field) environment have important engineering significance.
The typical equipment used for providing vibration signals for a test piece is a vibration table, the vibration table with single degree of freedom is widely applied at present, but the vibration table can only provide vibration signals of single-axis translation or single-axis rotation through tool switching, and with the improvement of engineering technology and the improvement of the recognition level of a vibration environment, the vibration simulation with single degree of freedom can not meet the test requirements of high-precision loads, precision instruments and the like increasingly. At present, the vibration simulation equipment with multiple degrees of freedom still has few research and development results, and has few practical applications in various fields. Therefore, the research and development of the vibration simulation device with multiple degrees of freedom have important practical significance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: aiming at the problem that a single-degree-of-freedom vibration table cannot meet the test requirement of multi-degree-of-freedom vibration simulation easily, a novel six-degree-of-freedom vibration simulation device is provided, and the device can be used for synchronously simulating vibration signals with at most six degrees of freedom, providing multi-degree-of-freedom vibration excitation under complex environments such as satellite-borne, missile-borne, airborne, ship-borne or vehicle-borne test pieces (high-precision loads, precision instruments and the like), so as to test the stability level and the control precision of the test pieces under the complex vibration interference environment, or testing and calibrating the functional performance.
The utility model discloses the purpose is realized through following technical scheme:
the six-degree-of-freedom vibration simulation device with the different-surface configuration comprises a lower platform, an upper platform, six actuator branches and a control system;
the six actuator branches form a six-degree-of-freedom parallel mechanism and are connected between the upper platform and the lower platform;
the control system obtains six-degree-of-freedom acceleration signals of the upper platform and converts the six-degree-of-freedom acceleration signals into control signals to control six actuator branch circuits to output axial motion, so that the upper platform is pushed to generate expected simulated vibration signals;
wherein, the structure of every actuator branch road in the six actuator branch roads is the same, and layout mode satisfies the axis of two arbitrary actuator branch roads and all intersects and be two liang of requirements of different plane straight lines in the space, specifically as follows: the six actuator branch circuits are uniformly divided into two groups, the axes of the three actuator branch circuits in each group form a single-sheet hyperboloid, the imaginary axes of the two single-sheet hyperboloids are superposed with each other, and the three actuator branch circuits on the same single-sheet hyperboloid rotate around the imaginary axes of the single-sheet hyperboloids; the included angle between the axes of the six actuator branch circuits and the XY plane in the space rectangular coordinate system and the distance of the Z axis are certain values.
Further, the actuator branch road includes actuator and hinge subassembly, the hinge subassembly includes the ball pivot at ball pivot pole and ball pivot pole both ends, the ball pivot passes through screw rod coaxial arrangement in the both sides of ball pivot pole to through the tight fixed position of back of the body nut, the ball pivot of ball pivot pole one side is connected through the keysets with the actuator movable ring, and guarantees through the locating hole that the centre of sphere is closed mutually with the movable ring axis.
Furthermore, the actuator branch circuit also comprises at least two pedestals fixedly connected with the lower platform, and the pedestals are arranged on two sides of the actuator through bolts and positioning pins; the lower platform is provided with a mounting hole matched and fixed with the pedestal, and the distribution position of the lower platform of the mounting hole corresponds to the layout mode of the six actuator branches.
Furthermore, the upper platform is provided with a hinge seat which is connected with the hinge assembly in a positioning manner, the number of the hinge seats corresponding to the number of the actuator branches is six, the hinge seats are connected with six positioning grooves which are arranged on the edge of the lower surface of the upper platform, and the distribution positions of the upper platform correspond to the layout modes of the six actuator branches.
Preferably, the actuator is a voice coil actuator.
Furthermore, the control system comprises a high-speed control computer, a multi-channel A/D data acquisition card, a multi-channel D/A data output card, a power amplifier, an acceleration sensor and a signal conditioner, wherein the acceleration sensor is used for measuring six-degree-of-freedom acceleration of the upper platform, the acceleration sensor is used as a feedback signal through the signal conditioner and the multi-channel A/D data acquisition card, the acceleration sensor is resolved through the high-speed control computer to generate a control signal, and the control signal is generated through the multi-channel D/A data output card and the power amplifier to further control the actuator to output axial movement so as to push the upper platform assembly to generate an expected analog vibration signal.
Further, the number of the acceleration sensors is six, and the arrangement of the upper platform is as follows: the center of the lower surface of the upper platform is provided with a central sensor seat, and the central sensor seat is respectively connected with the first sensor, the second sensor and the third sensor through three mounting holes and is used for measuring the translational acceleration of the upper platform along X, Y and Z axis; the fourth sensor is connected to the intersection point of the Y axis and the reinforcing rib on the lower surface of the upper platform through a stud and used for differentially measuring the rotation acceleration of the upper platform around the X axis by the third sensor; and a side sensor seat is arranged at the intersection point of the X axis and the side reinforcing rib of the hinge seat, is connected with the fifth sensor and the sixth sensor through two mounting holes and is respectively used for measuring the rotation acceleration of the upper platform around the Y, Z axis with the difference of the third sensor and the second sensor.
Furthermore, the lower platform is also provided with six shock absorbers, the lower platform is a casting platform, six mounting holes are distributed in grooves on the outer side of the lower platform, and the six mounting holes are respectively connected with the six shock absorbers.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the utility model discloses a vibration analogue means of six degrees of freedom has the six degrees of freedom motion ability by a relatively large margin, can produce the vibration analog signal of six degrees of freedom at most.
(2) The utility model designs a novel configuration of a six-degree-of-freedom parallel mechanism, namely a non-coplanar configuration, and applies the configuration to a six-degree-of-freedom vibration simulation device, and the six-degree-of-freedom parallel mechanism arranged according to the configuration has larger working space and smaller upper platform envelope; the former means that under the condition of selecting the same actuator, the device can obtain larger translation and rotation space; the latter means that the upper platform of the device can be designed to be light, which enables the device to have stronger bearing capacity and higher working bandwidth; in addition, the traditional six-degree-of-freedom parallel mechanism inevitably causes the ill-conditioned mechanism if the smaller upper platform envelope is reached, and the configuration overcomes the problem.
(3) The utility model discloses formed and used voice coil motor as actuating mechanism at center, also had voice coil motor's output linearity when simple structure good, respond fast and advantage such as reliability height.
(4) The utility model discloses except that the upper mounting plate is lighter, the hinge subassembly that designs is also very light, and this makes the utility model discloses a six degrees of freedom vibration analogue means's motion segment quality is less, and then makes it have great bearing capacity and higher work bandwidth.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive laboriousness.
Fig. 1 is a schematic structural view of the six-degree-of-freedom vibration simulation device with the different-surface configuration of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a top view of the present invention with different surface configurations.
Fig. 4 is a schematic structural diagram 1 of the actuator branch of the present invention.
Fig. 5 is a schematic structural diagram 2 of the actuator branch of the present invention.
Fig. 6 is a schematic diagram of a hinge assembly structure of the actuator branch of the present invention.
Fig. 7 is an isometric view of a lower platform assembly according to the present invention.
Fig. 8 is a top view of the lower platform assembly of the present invention.
Fig. 9 is an isometric view of an upper platform assembly according to the present invention.
Fig. 10 is a bottom view of the upper plate assembly of the present invention.
Fig. 11 is a control circuit block diagram of the control system of the present invention.
Wherein 1101-lower platform, 1102-mounting hole, 1201-shock absorber, 1202-shock absorber, 1203-shock absorber, 1204-shock absorber, 1205-shock absorber, 1206-shock absorber, 2101-actuator, 2102-first pedestal, 2103-second pedestal, 2104-adapter plate, 2105-first ball hinge, 2106-second ball hinge, 2109-ball hinge rod, 2107-first back nut, 2108-first back nut, 2100-actuator branch, 2200-actuator branch, 2300-actuator branch, 2400-actuator branch, 2500-actuator branch, 2600-actuator branch, 3101-upper platform, 3201-hinge mount, 3202-hinge mount, 3203-hinge mount, 3204-hinge mount, 3205-hinge mount, 3206-hinge mount, 3301-center sensor mount, 3401-first sensor, 3402-second sensor, 3403-third sensor, 3404-fourth sensor, 3405-fifth sensor, 3405-third sensor, 3405-fourth sensor, 3405-fifth sensor, and methods, 3406-sixth sensor, 3302-side sensor mount.
Detailed Description
The invention will be further described with reference to specific embodiments, wherein the drawings are designed solely for the purpose of illustration and not as a definition of the limits of the patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The utility model provides a six degrees of freedom vibration analogue means of different face configurations, control system including actuator branch road, upper mounting plate, lower platform and real time control. The six actuator branches are used for providing accurate and controllable output force for the system; the upper platform is used for providing a rigid mechanical mounting table for the test piece and observing the simulated vibration signal through the measured acceleration signal; the lower platform is used for providing a stable installation foundation for the system; the control system calculates a control signal through the acquired six-degree-of-freedom acceleration signal of the upper platform, and outputs the control signal to the power amplifier to further drive the actuator to output axial telescopic motion so as to push the upper platform to generate a desired simulated vibration signal, which will be described below with reference to a specific embodiment.
As shown in fig. 1, the six-degree-of-freedom vibration simulation apparatus with the out-of-plane configuration in the present embodiment includes a lower platform 1101, an upper platform 3101, six actuator legs (2100, 2200, 2300, 2400, 2500, 2600), and a control system.
Wherein six actuator legs (2100, 2200, 2300, 2400, 2500, 2600) form a six degree of freedom parallel mechanism connected between the upper platform 3101 and the lower platform 1101.
Wherein the control system controls the six actuator arms (2100, 2200, 2300, 2400, 2500, 2600) to output axial motion by acquiring six degrees of freedom acceleration signals of the upper platform 3101 and converting the signals into control signals to propel the upper platform 3101 to generate desired simulated vibration signals.
It should be noted here that, in this embodiment, the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) form a six-degree-of-freedom parallel mechanism, instead of a traditional six-degree-of-freedom parallel mechanism configuration, the six actuator branches are an out-of-plane configuration, and a specific definition thereof means that a layout manner of the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) meets a requirement that axes of any two actuator branches do not intersect in space and are straight lines of two out-of-plane pairs, specifically, as shown in fig. 2 to 3, the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) are uniformly divided into two groups, axes of three actuator branches in each group form a single-leaf hyperboloid, imaginary axes of two single-leaf hyperboloids coincide with each other, and three actuator branches on the same single-leaf hyperboloid are rotationally symmetric around the imaginary axes of the single-; the included angle between the axes of the six actuator branch circuits and the XY plane in the space rectangular coordinate system and the distance of the Z axis are certain values.
The six-degree-of-freedom parallel mechanism which is arranged according to the different-surface configuration is applied to a six-degree-of-freedom vibration simulation device and has a larger working space and a smaller upper platform envelope; the former means that under the condition of selecting the same actuator, the device can obtain larger translation and rotation space; the latter means that the upper platform of the device can be designed to be light, which makes the device have stronger bearing capacity and higher working bandwidth.
It should be noted that the six actuator legs (2100, 2200, 2300, 2400, 2500, 2600) are identical in structure, as illustrated by actuator leg 2100, and as shown in fig. 4-6, actuator leg 2100 includes an actuator 2101, a first pedestal 2102, a second pedestal 2103, an adapter plate 2104, and a hinge assembly; the hinge assembly is shown in fig. 6 and includes a first ball pivot 2105, a second ball pivot 2106, a first back nut 2107, a second back nut 2108 and a ball pivot rod 2109. The first pedestal 2102 and the second pedestal 2103 in the actuator branch 2100 are respectively installed on two sides of the actuator 2101 through four bolts, and are positioned with positioning holes in two sides of the actuator 2101 through positioning pins; first ball pivot 2105, second ball pivot 2106 pass through the screw rod coaxial arrangement in ball pivot pole 2109 both sides to respectively through the tight position of first back of the body nut 2107, the tight nut 2108 fastening of second back of the body. A first spherical hinge 2105 in the hinge assembly is connected with a movable coil of an actuator 2101 through an adapter plate 2104, and a spherical center is ensured to be matched with the axis of the movable coil through a positioning hole.
Among them, the actuator 2101 is preferably a voice coil actuator, which has advantages of good output linearity, fast response, high reliability, and the like.
It is understood that the connection of the lower platform 1101, the upper platform 3101 and the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) in this embodiment should meet the requirements of the above-mentioned out-of-plane layout, and the connection structure in this embodiment is as follows:
as shown in fig. 7 to 8, the lower platform 1101 is provided with mounting holes 1102 which are matched and fixed with the first pedestal 2102 and the second pedestal 2103, and the distribution positions of the mounting holes 1102 on the lower platform 1101 correspond to the layout mode of the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600).
In addition, the lower platform 1101 is further provided with six shock absorbers (1201, 1202, 1203, 1204, 1205, 1206), the lower platform 1101 is a cast platform, and six mounting holes are distributed at the outer grooves and are respectively connected with the six shock absorbers (1201, 1202, 1203, 1204, 1205, 1206).
As shown in fig. 9-10, the upper platform 3101 is provided with six hinge mounts (3201, 3202, 3203, 3204, 3205, 3206) in positioning connection with the hinge assemblies of the six actuator legs (2100, 2200, 2300, 2400, 2500, 2600), and taking the actuator leg 2100 as an example, the positioning post of the second ball joint 2106 is in positioning connection with the hinge mount 3201 of the upper platform 3101. Six hinge blocks (3201, 3202, 3203, 3204, 3205, 3206) are connected to six positioning grooves provided at the lower surface edge of the upper platform 3101, and correspond to the arrangement of six actuator legs (2100, 2200, 2300, 2400, 2500, 2600) at distributed positions of the upper platform 3101.
Through the connection structure, the six actuator branches are spatially arranged according to the different-surface configuration shown in fig. 1 and fig. 2, and are sequentially connected with the lower platform 1101 and the upper platform 3101, and the different-surface configuration is ensured by the mounting hole 1102 on the lower platform 1101 and the positioning groove or the hinge seat on the upper platform 3101, so that a mechanical part of the six-degree-of-freedom vibration simulation device with a specific function is formed.
As shown in fig. 11, the control system includes a high-speed control computer, a multi-channel a/D data acquisition card, a multi-channel D/a data output card, a power amplifier, an acceleration sensor, a signal conditioner, a sensor tool, and the like; the acceleration sensor is used for measuring six-degree-of-freedom acceleration of the upper platform, the six-degree-of-freedom acceleration serves as a feedback signal through the signal conditioner and the multi-channel A/D data acquisition card, a control signal is generated through resolving by the high-speed control computer, a driving signal is generated through the multi-channel D/A data output card and the power amplifier, then the actuator is controlled to output axial movement, and the upper platform assembly is pushed to generate an expected simulated vibration signal.
The number of the acceleration sensors is six, the six acceleration sensors are respectively arranged on the upper platform 3101, specifically, the arrangement of the upper platform 3101 continues to refer to fig. 9-10, the central sensor seat 3301 is arranged at the center of the lower surface of the upper platform 3101, and is respectively connected with the first sensor 3401, the second sensor 3402 and the third sensor 3403 through three mounting holes, and is used for measuring the translational acceleration of the upper platform along X, Y and the Z axis; the fourth sensor 3404 is connected to the intersection point of the Y axis and the reinforcing rib on the lower surface of the upper platform 3101 through a stud and is used for measuring the rotation acceleration of the upper platform 3101 around the X axis by differentiating with the third sensor 3403; the side sensor mount 3302 is installed at the intersection of the X-axis and the side stiffener of the hinge mount 3201, and is connected to the fifth sensor 3405 and the sixth sensor 3406 through two mounting holes, respectively, for differentially measuring the rotational acceleration of the upper platform about the axis Y, Z with the third sensor 3403 and the second sensor 3402.
When the six-degree-of-freedom vibration simulation device with the different-surface configuration operates, a test piece is installed above the upper platform 3101, and then the actuator 3101 is adjusted to level the upper platform 3101 and unload gravity; the high-speed control computer is started, an expected time-frequency domain vibration control instruction can be input on a user interaction interface, a corresponding six-degree-of-freedom analog vibration signal (comprising sine frequency sweep, random or user-induced time domain vibration signal and the like) is generated, and multi-degree-of-freedom vibration excitation in complex environments such as satellite-borne, missile-borne, airborne, carrier-borne or vehicle-borne is provided for a test piece (high-precision load, precision instrument and the like).
The six-degree-of-freedom vibration simulation device of this embodiment out-of-plane configuration is applied to six-degree-of-freedom vibration simulation device, has six-degree-of-freedom vibration simulation ability to voice coil motor is as the active element of actuator branch road, and arranges the spatial position of actuator branch road through special design's out-of-plane configuration, makes the utility model has the advantages of working space is big, bearing capacity is strong, output is big, response speed is fast and control bandwidth is high.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (8)
1. A six-degree-of-freedom vibration simulation device with an out-of-plane configuration is characterized by comprising a lower platform (1101), an upper platform (3101), six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) and a control system;
the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) form a six-degree-of-freedom parallel mechanism connected between the upper platform (3101) and the lower platform (1101);
the control system controls six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) to output axial movement by acquiring six-degree-of-freedom acceleration signals of the upper platform (3101) and converting the six acceleration signals into control signals, so as to push the upper platform (3101) to generate a desired simulated vibration signal;
each actuator branch of the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600) has the same structure, and the layout mode meets the requirements that the axes of any two actuator branches are not intersected in space and are pairwise out-of-plane straight lines, specifically as follows: the method comprises the following steps that six actuator branch circuits (2100, 2200, 2300, 2400, 2500 and 2600) are uniformly divided into two groups, the axes of the three actuator branch circuits in each group form a single-sheet hyperboloid, the imaginary axes of the two single-sheet hyperboloids are superposed with each other, and the three actuator branch circuits on the same single-sheet hyperboloid are rotationally symmetrical around the imaginary axis of the single-sheet hyperboloid; the included angle between the axes of the six actuator branch circuits and the XY plane in the space rectangular coordinate system and the distance of the Z axis are certain values.
2. The out-of-plane configuration six-degree-of-freedom vibration simulation device according to claim 1, wherein the actuator branch (2100) comprises an actuator (2101) and a hinge assembly, the hinge assembly comprises a ball hinge rod (2109) and ball hinges (2105, 2106) at two ends of the ball hinge rod (2109), the ball hinges (2105, 2106) are coaxially installed at two sides of the ball hinge rod (2109) through screws and are tightly fixed in position through tightening nuts (2107, 2108), the ball hinge (2105) at one side of the ball hinge rod (2109) is connected with a moving ring of the actuator (2101) through an adapter plate (2104), and the center of a sphere is ensured to be matched with the axis of the moving ring through the positioning holes.
3. The out-of-plane configuration six-degree-of-freedom vibration simulation device according to claim 2, wherein the actuator branch (2100) further comprises pedestals (2102, 2103) fixedly connected with the lower platform (1101), the pedestals (2102, 2103) are at least two in number and are installed on two sides of the actuator through bolts and positioning pins; the lower platform (1101) is provided with mounting holes (1102) which are matched and fixed with the pedestals (2102, 2103), and the distribution positions of the mounting holes (1102) on the lower platform (1101) correspond to the layout mode of the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600).
4. The out-of-plane configuration six-degree-of-freedom vibration simulator according to claim 2, characterized in that the upper platform (3101) is provided with six hinge blocks (3201, 3202, 3203, 3204, 3205, 3206) in positioning connection with the hinge assemblies of six actuator branches (2100, 2200, 2300, 2400, 2500, 2600), the six hinge blocks (3201, 3202, 3203, 3204, 3205, 3206) being connected with six positioning slots provided at the lower surface edge of the upper platform (3101), and the distribution of the upper platform (3101) corresponding to the layout of the six actuator branches (2100, 2200, 2300, 2400, 2500, 2600).
5. The out-of-plane configuration six degree-of-freedom vibration simulator of claim 2 in which the actuator (2101) is a voice coil actuator.
6. The out-of-plane configuration six-degree-of-freedom vibration simulation device according to any one of claims 1 to 5, wherein the control system comprises a high-speed control computer, a multi-channel A/D data acquisition card, a multi-channel D/A data output card, a power amplifier, an acceleration sensor and a signal conditioner, the acceleration sensor is used for measuring six-degree-of-freedom acceleration of the upper platform, the acceleration sensor is used as a feedback signal through the signal conditioner and the multi-channel A/D data acquisition card, the feedback signal is resolved through the high-speed control computer to generate a control signal, and the control signal is resolved through the multi-channel D/A data output card and the power amplifier to generate a driving signal, so that the actuator is controlled to output axial motion to push the upper platform assembly to.
7. The out-of-plane configuration six-degree-of-freedom vibration simulation device according to claim 6, wherein the number of acceleration sensors is six, and the arrangement of the upper platform (3101) is as follows: the center of the lower surface of the upper platform (3101) is provided with a central sensor seat (3301), and the central sensor seat (3301) is respectively connected with a first sensor (3401), a second sensor (3402) and a third sensor through three mounting holes (3403) and is used for measuring the translational acceleration of the upper platform (3101) along X, Y and a Z axis; the fourth sensor (3404) is connected to the intersection point of the Y axis and the reinforcing rib on the lower surface of the upper platform (3101) through a stud and is used for measuring the rotation acceleration of the upper platform (3101) around the X axis in a differential mode with the third sensor (3403); and a lateral sensor seat (3302) is arranged at the intersection of the X axis and a lateral reinforcing rib of the hinge seat (3201), and the lateral sensor seat (3302) is connected with a fifth sensor (3405) and a sixth sensor (3406) through two mounting holes and is respectively used for measuring the rotation acceleration of the upper platform around an Y, Z axis by difference with the third sensor (3403) and the second sensor (3402).
8. The out-of-plane configuration six-degree-of-freedom vibration simulation device according to claim 1, wherein the lower platform (1101) is further provided with six shock absorbers (1201, 1202, 1203, 1204, 1205, 1206), and the lower platform (1101) is a cast platform and is provided with six mounting holes distributed at outer grooves, and the six shock absorbers (1201, 1202, 1203, 1204, 1205, 1206) are respectively connected with the lower platform.
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| CN110398332A (en) * | 2019-07-25 | 2019-11-01 | 北京航宇振控科技有限责任公司 | A kind of six-degree of freedom vibration simulator of antarafacial configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110398332A (en) * | 2019-07-25 | 2019-11-01 | 北京航宇振控科技有限责任公司 | A kind of six-degree of freedom vibration simulator of antarafacial configuration |
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