CN103185099A - Wire-connected multi-ring vibration-isolating device applicable to spacecraft - Google Patents

Wire-connected multi-ring vibration-isolating device applicable to spacecraft Download PDF

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Publication number
CN103185099A
CN103185099A CN2013100683278A CN201310068327A CN103185099A CN 103185099 A CN103185099 A CN 103185099A CN 2013100683278 A CN2013100683278 A CN 2013100683278A CN 201310068327 A CN201310068327 A CN 201310068327A CN 103185099 A CN103185099 A CN 103185099A
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China
Prior art keywords
outer shroud
memory alloy
ring
interior ring
silk
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CN2013100683278A
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Chinese (zh)
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CN103185099B (en
Inventor
杨建中
徐青华
罗敏
刘海平
吴琼
满剑锋
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Beijing Institute of Spacecraft System Engineering
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Beijing Institute of Spacecraft System Engineering
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Priority to CN201310068327.8A priority Critical patent/CN103185099B/en
Publication of CN103185099A publication Critical patent/CN103185099A/en
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Publication of CN103185099B publication Critical patent/CN103185099B/en
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Abstract

The invention provides a wire-connected multi-ring vibration-isolating device applicable to a spacecraft. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft comprises nuts, an outer ring, connecting nails, one or more inner rings and memory alloy pins, wherein the memory alloy pins are made of memory alloy; the extension and contraction of the memory alloy pins are controlled by temperature control measures; if only one inner ring is provided , the outer ring and the inner rings are concentrically connected together through the connecting nails and the memory alloy pins; if more than one inner ring is provided and the outer ring and the inner rings are concentric, the outer ring and the inner ring adjacent to the outer ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails; and if the outer ring and the inner rings are not concentric, the outer ring and each inner ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft can meet a requirement on the connecting rigidity between the inner rings and the outer ring in a zero-gravity environment and can achieve a stable vibration-isolating purpose.

Description

A kind of silk of astrovehicle that is applicable to connects many ring isolation mountings
Technical field
The present invention relates to a kind of isolation mounting, be specifically related to a kind of silk of astrovehicle that is applicable to and connect many ring isolation mountings, belong to astrovehicle vibration isolation technique field.
Background technique
Along with high-resolution earth observation satellite technology and sky-based laser development of Communication Technique, the highi degree of accuracy useful load on the satellite such as high-resolution camera, laser communication terminal etc. for astrovehicle the little vibration in orbit the time more and more responsive.This vibrates slightly generally is owing to the dynamic unbalance in the work such as driving mechanism, attitude-control device causes, it can cause the useful load service behaviour significantly to descend usually, when serious even cause useful load total failure.Therefore, in order to guarantee the stable operation of useful load, need installing isolation mounting additional between useful load and the celestial body or between vibration source and the celestial body.Common isolation mounting comprises viscous fluids isolation mounting, electromagnetism isolation mounting and viscoelasticity isolation mounting etc., these isolation mountings in course of working to the required precision of shape and position often than higher, form more complicated, therefore, development cost is higher, and generally need use the purpose that just can reach vibration isolation in groups by several isolation mountings.
Summary of the invention
In view of this, the invention provides a kind of silk of astrovehicle that is applicable to and connect many ring isolation mountings, can be applicable to that the vibration between useful load on the astrovehicle or vibration source and the astrovehicle body isolates, that its structure is formed is simple, assembly manipulation convenience, stable performance, silk that reliability is high connect the isolation mountings that encircle more, can be used for astrovehicle in the rail vibration isolation.
A kind of silk of astrovehicle that is applicable to connects many ring isolation mountings, this isolation mounting comprises nut, outer shroud, connecting nail, one or more interior ring and memory alloy pin, outer shroud and interior ring are along the circular hole that circumferentially is evenly equipped with more than six or six, and outer shroud is along circumferentially being distributed with one or more layers of pin-and-hole, and every layer of pin-and-hole is more than three or three; Connecting nail comprises ailhead, silk material and nail tail, links together by the silk material between ailhead and the nail tail, and the outer surface of nail tail is screw thread; The memory alloy pin is made by memory alloy material, by elongation and the shortening of temperature control measures control memory alloy pin;
Relation is installed: if interior ring is one, then between outer shroud and the interior ring by connecting nail with the memory alloy pin is concentric links together, outer shroud is relative with the circular hole position on the interior ring, the silk material of connecting nail passes the circular hole of outer shroud and interior ring, and on the inner headed face that ailhead encircles in conflicting and being engaged in, the nail tail passes the circular hole of outer shroud and cooperates with nut on the outer shroud periphery, the memory alloy pin is along the pin-and-hole that radially passes outer shroud of outer shroud, and the head of memory alloy pin and the periphery of outer shroud are conflicted and are cooperated, and the groove of corresponding position matches on the afterbody of memory alloy pin and the interior ring periphery;
If interior ring is more than one, and if outer shroud and interior ring are with one heart, namely link together by connecting nail and memory alloy pin between the interior ring that outer shroud and outer shroud are adjacent, link together by connecting nail between the ring in each; If outer shroud and interior ring decentraction namely link together by connecting nail and memory alloy pin between outer shroud and each the interior ring, link together by connecting nail between the interior ring.
Described outer shroud and interior ring are ring, polygonal or cross form structure.
Silk material in the described connecting nail adopts wire or nonmetal wire, and adopts independently silk or the multiply silk that is intertwined by multi-filament.
The ailhead of described adjacent connecting nail or nail tail are fixed on the same point, and be namely angled between the silk material of adjacent connecting nail.
Beneficial effect:
(1) adopt a silk material to be connected between ring and the outer shroud in of the present invention, by adjusting the tension force of silk material, can guarantee the coupling stiffness requirement between the inside and outside ring under the zero-g environment, can effectively weaken the propagation of vibration wave between interior ring and outer shroud again, and then realize stable vibration isolation target.
(2) connecting nail of the present invention is made up of ailhead, silk material, drive screw tail, and silk connects in many ring isolation mountings and comprises several independently connecting nails, each connecting nail can be by control screw thread screw-down torque, realize the conformity control of a material tension force easily, and then realize the adjusting of isolation mounting overall performance; And connecting nail is all independent mutually, i.e. the inefficacy of single connecting nail can not cause the anti-vibration performance notable change of whole isolation mounting, so the reliability height.
(3) elongation, the contraction of the present invention by the memory alloy taper pin, the locking and unlocking in realizing between ring and the outer shroud, thus the overload when bearing transmitter section or becoming rail by taper pin realizes normal vibration isolation when rail flies by the silk material.
Description of drawings
The overall structure figure of Fig. 1 many ring isolation mountings for silk of the present invention connects.
Fig. 2 is the structural drawing of connecting nail of the present invention.
The installation sectional view of Fig. 3 many ring isolation mounting memory alloy pins for silk of the present invention connects.
Fig. 4 connects the installation sectional view of the two-layer connecting nail of many ring isolation mountings for silk among the present invention.
Fig. 5 encircles the structural drawing of isolation mounting more for decentraction among the present invention.
Other setting types of Fig. 6 many ring isolation mounting connecting nails for silk among the present invention connects.
Wherein, the 1-nut, the 2-outer shroud, ring in the 3-connecting nail, 4-, 5-memory alloy pin, the 6-ailhead, 7-silk material, 8-follows closely tail
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
As shown in Figure 1, the invention provides a kind of silk of astrovehicle that is applicable to and connect many ring isolation mountings, this isolation mounting comprises nut 1, outer shroud 2, connecting nail 3, interior ring 4 and memory alloy pin 5, wherein outer shroud 2 and interior ring 4 are cirque structure, equal coaxial mounting flange on both end faces, the mounting flange of outer shroud 2 is used for being connected between isolation mounting and the spacecraft structure body, in ring 4 mounting flange be used for being connected between isolation mounting and useful load or the vibration source, outer shroud 2 and interior ring 4 are along circumferentially being evenly distributed with 36 circular holes, be used for and being connected of connecting nail 3, and outer shroud 2 is along circumferentially also being evenly distributed with four pin-and-holes; Memory alloy pin 5 is made by memory alloy material, and it is divided into elongation and shortens two states, realizes the state control of memory alloy pin 5 by temperature control measures.
As shown in Figure 2, connecting nail 3 comprises ailhead 6, silk material 7 and nail tail 8, links together by silk material 7 between ailhead 6 and the nail tail 8, and the outer surface of nail tail 8 is screw thread.
Integral installation relation: link together with one heart by connecting nail 3 and memory alloy pin 5 between outer shroud 2 and the interior ring 4, the circular hole position of outer shroud 2 and interior ring 4 is relative, the silk material 7 of connecting nail 3 passes the circular hole of outer shroud 1 and interior ring 4, and ailhead 6 is conflicted and is engaged on the inner headed face of interior ring 4, nail tail 8 passes the circular hole of outer shroud 2 and cooperates with nut on outer shroud 2 peripheries, by nut 1 tighten or unscrew conveniently adjusted in the ring 2 and outer shroud 4 between tension force, memory alloy pin 5 is along the pin-and-hole that radially passes outer shroud 2 of outer shroud 2, and the head of memory alloy pin 5 is conflicted with the periphery of outer shroud 2 and is cooperated the groove fit of corresponding position on the afterbody of memory alloy pin 5 and interior ring 4 peripheries.
The temperature environment of control memory alloy pin 5 when transmitter section or change rail, make memory alloy pin 5 be in elongation state, the outer surface of ring 4 in its free-ended conical surface compresses, realize relative locking by four memory alloy pins 5 between outer shroud 2 and the interior ring 4, bear corresponding overload by memory alloy pin 5, as shown in Figure 3.Live through transmitter section or become rail after the stage, change the temperature environment of memory alloy pin 5 by temperature control measures, make it be in the shortening state, releasing at this moment, links together by connecting nail 3 and nut 1 between outer shroud 2 and the interior ring 4 fully to the locking between outer shroud 2 and the interior ring 4, vibration transmission between outer shroud 2 and the interior ring 4, have only through connecting nail 3 and could realize, and most vibration can't be by the silk material 7 in the connecting nail 3, therefore silk connects the effect that many ring isolation mountings have played vibration isolation.
It can be two concentric rings that silk in the above-mentioned enforcement connects many ring isolation mountings, also can be a plurality of concentric rings, can also be according to the needs of isolated subject, it is the ring of a plurality of decentraction, as shown in Figure 5, five isodiametric interior rings are evenly distributed on outer shroud inside, link together by connecting nail and memory alloy pin between outer shroud and the interior ring, and also link together by connecting nail between the ring in each, in order to further improve vibration isolating effect.
Silk in the above-mentioned enforcement connects interior ring 2 or the outer shroud 4 of many ring isolation mountings, can be circular, also can be designed to polygonal according to the demand of concrete mounting point.Interior ring 2 can also be designed to multiple shapes such as " well " font according to the connection of vibration isolation object, the requirement of support stiffness.
The connecting nails 3 that silk in the above-mentioned enforcement connects many ring isolation mountings can be positioned at a plane, also can be positioned at two or more planes, and as shown in Figure 4, and the silk material 7 in the connecting nail 3 can be wire, also can be nonmetal wire; Can be an independently silk, also can be the multiply silk that is intertwined by multi-filament, and the multiply silk can further consume vibrational energy by the friction between silk and the silk in the silk material stretching process.
Connecting nail 3 is arranged the form that can also adopt other in above-described embodiment, as shown in Figure 6, the ailhead 6 of two adjacent connecting nails 3 is fixed on the same point, be that adjacent two rhizoid materials 7 form certain included angle, play the effect of vibration isolation like this by 7 pairs of same points of two rhizoid materials, can further improve vibration isolating effect.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. a silk that is applicable to astrovehicle connects many ring isolation mountings, it is characterized in that, this isolation mounting comprises nut, outer shroud, connecting nail, one or more interior ring and memory alloy pin, outer shroud and interior ring are along the circular hole that circumferentially is evenly equipped with more than six or six, and outer shroud is along circumferentially being distributed with one or more layers of pin-and-hole, and every layer of pin-and-hole is more than three or three; Connecting nail comprises ailhead, silk material and nail tail, links together by the silk material between ailhead and the nail tail, and the outer surface of nail tail is screw thread; The memory alloy pin is made by memory alloy material, by elongation and the shortening of temperature control measures control memory alloy pin;
Relation is installed: if interior ring is one, then between outer shroud and the interior ring by connecting nail with the memory alloy pin is concentric links together, outer shroud is relative with the circular hole position on the interior ring, the silk material of connecting nail passes the circular hole of outer shroud and interior ring, and on the inner headed face that ailhead encircles in conflicting and being engaged in, the nail tail passes the circular hole of outer shroud and cooperates with nut on the outer shroud periphery, the memory alloy pin is along the pin-and-hole that radially passes outer shroud of outer shroud, and the head of memory alloy pin and the periphery of outer shroud are conflicted and are cooperated, and the groove of corresponding position matches on the afterbody of memory alloy pin and the interior ring periphery;
If interior ring is more than one, and if outer shroud and interior ring are with one heart, namely link together by connecting nail and memory alloy pin between the interior ring that outer shroud and outer shroud are adjacent, link together by connecting nail between the ring in each; If outer shroud and interior ring decentraction namely link together by connecting nail and memory alloy pin between outer shroud and each the interior ring, link together by connecting nail between the interior ring.
2. a kind of silk of astrovehicle that is applicable to as claimed in claim 1 connects many ring isolation mountings, it is characterized in that described outer shroud and interior ring are ring, polygonal or cross form structure.
3. a kind of silk of astrovehicle that is applicable to as claimed in claim 1 connects many ring isolation mountings, it is characterized in that the silk material in the described connecting nail adopts wire or nonmetal wire, and adopts independently silk or the multiply silk that is intertwined by multi-filament.
4. a kind of silk of astrovehicle that is applicable to as claimed in claim 1 connects many ring isolation mountings, it is characterized in that the ailhead of described adjacent connecting nail or nail tail are fixed on the same point, and is namely angled between the silk material of adjacent connecting nail.
CN201310068327.8A 2013-03-04 2013-03-04 Wire-connected multi-ring vibration-isolating device applicable to spacecraft Active CN103185099B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995050A (en) * 2017-04-14 2017-08-01 哈尔滨工业大学 One kind is used for Thin-Wall Cylindrical Shells dynamic stiffness actively enhanced SMA actuator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101074573A (en) * 2007-04-06 2007-11-21 大连理工大学 Damper of multi-dimensional superelastic shape memory alloy
US20090126288A1 (en) * 2007-03-29 2009-05-21 Fanucci Jerome P Shape memory alloy composite material shock and vibration isolator devices
CN201416607Y (en) * 2009-04-08 2010-03-03 大连理工大学 Honeycomb shape memory alloy multi-dimensional vibration absorber
CN202099875U (en) * 2011-05-18 2012-01-04 东南大学 Shape memory alloy self-resetting multidimensional shock insulation support
CN102392497A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Multi-direction shape memory alloy, soft steel and lead combined drum-like damper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090126288A1 (en) * 2007-03-29 2009-05-21 Fanucci Jerome P Shape memory alloy composite material shock and vibration isolator devices
CN101074573A (en) * 2007-04-06 2007-11-21 大连理工大学 Damper of multi-dimensional superelastic shape memory alloy
CN201416607Y (en) * 2009-04-08 2010-03-03 大连理工大学 Honeycomb shape memory alloy multi-dimensional vibration absorber
CN202099875U (en) * 2011-05-18 2012-01-04 东南大学 Shape memory alloy self-resetting multidimensional shock insulation support
CN102392497A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Multi-direction shape memory alloy, soft steel and lead combined drum-like damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995050A (en) * 2017-04-14 2017-08-01 哈尔滨工业大学 One kind is used for Thin-Wall Cylindrical Shells dynamic stiffness actively enhanced SMA actuator
CN106995050B (en) * 2017-04-14 2019-07-02 哈尔滨工业大学 A kind of SMA actuator actively enhanced for Thin-Wall Cylindrical Shells dynamic stiffness

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