WO2018041577A1 - Palier à patins oscillants - Google Patents

Palier à patins oscillants Download PDF

Info

Publication number
WO2018041577A1
WO2018041577A1 PCT/EP2017/070263 EP2017070263W WO2018041577A1 WO 2018041577 A1 WO2018041577 A1 WO 2018041577A1 EP 2017070263 W EP2017070263 W EP 2017070263W WO 2018041577 A1 WO2018041577 A1 WO 2018041577A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring element
sleeve
pin member
pad bearing
tilting
Prior art date
Application number
PCT/EP2017/070263
Other languages
German (de)
English (en)
Inventor
Jochen Doehring
Tim Maier
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2018041577A1 publication Critical patent/WO2018041577A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings

Definitions

  • the invention relates to a tilting pad bearing for supporting a shaft.
  • Tilting pad bearings are of the type of air bearings.
  • annular support member which has an opening in which bearing elements are arranged.
  • the bearing elements are designed as tilting segments.
  • a holding element is arranged in the opening of the support part, which has a mushroom-shaped configuration, so that in the region of the holding element one or more lugs are arranged, which form undercuts.
  • These undercuts cooperate with an opening made in the bearing element, which is likewise designed in a manner corresponding to the undercuts of the retaining element such that in the assembled state the undercuts are engaged behind by suitable parts of the bearing element.
  • the bearing element is engaged when inserted into the opening of the support member and can be secured against falling out.
  • the invention discloses a tilting pad bearing with the features of patent claim 1.
  • a tilting pad bearing comprising:
  • a plurality of tilting segments which are arranged in the sleeve, wherein between the sleeve and the respective tilting segment an associated spring element is provided, wherein a gap between the inside of the sleeve and the outside of the spring element is adjustable by an adjustment, which with the spring element by
  • the tilting pad bearing can be mounted more easily since the previous threading of the
  • the spring element after installation of the adjustment in the sleeve can be easily locked with the adjuster.
  • the adjusting device has, in one embodiment of the invention, a pin element on which the spring element can be latched for latching the adjusting device with the spring element.
  • a pin element is simple and inexpensive to manufacture.
  • the spring element has in another embodiment of the invention a
  • Locking sections for locking the spring element with the adjustment are also simple and inexpensive in the
  • the one or more latching sections with their end edge or their end edges form a latching section opening in a further embodiment of the invention.
  • the latching portion opening formed by the latching portions causes the spring element can not accidentally slip off pin element again, since the latching portion opening is smaller than the passage opening through which the pin element is inserted.
  • the catch portion opening is smaller, equal to or larger than the
  • the pin member has at its inner end an at least partially circumferential recess into which the one or more Locking sections of the spring element can be latched.
  • the spring element with its at least one
  • the inner end of the pin member may be formed in a further embodiment of the invention with an additional bevel or in another embodiment of the invention without an additional bevel for passing the pin member with its inner end through the through hole and latch portion opening of the spring element. Due to the chamfer, the passage of the pin element through the passage opening and latching portion opening can be additionally facilitated until the spring element is in the position in which it locks with the pin element.
  • the inner end of the pin member may be provided according to an embodiment of the invention with an additional head for passing the head of the pin member through the through hole and the locking portion opening of the spring element.
  • the passage opening is dimensioned sufficiently large for passing the head of the pin member and the locking portion opening is again smaller than the passage opening to prevent accidental slipping of the spring element.
  • the pin member has in embodiments of the invention at its outer end a head or a nut.
  • the nut is in threaded engagement with the
  • Pin element and thus can be screwed along the pin member, for adjusting the bias of the spring element.
  • Adjustable pin element In this way, the gap and thus the bias of the spring element can be very finely adjusted or adjusted.
  • the gap between the inside of the sleeve and the outside of the spring element can be predetermined or adjusted in a further embodiment of the invention by the position of the depression on the pin element. As a result, a later adjustment or adjustment of the gap is not required. Instead, the gap is pre-set in advance by incorporating or forming the recess in a suitable or desired position on the pin member, such that the associated spring member subsequently only has to engage in the recess of the pin member to automatically adjust the desired gap between the inside of the sleeve and the outside of the spring element.
  • the pin member is another embodiment of the invention in one
  • a through-bore as a receptacle may be provided when the adjustment means comprises a nut which is screwed along a threaded portion of the pin member for adjusting the bias of the spring member.
  • the gap between the inside of the sleeve and the outside of the spring element can be adjustable according to an embodiment of the invention by screwing the pin element along the threaded bore of the sleeve. This can be as
  • Einsteil raised be used, for example, a screw in the
  • Threaded hole can be screwed.
  • the screw can do this with its shaft as
  • Pin element for example, with an additional recess, as described above for locking the spring element and / or be provided with a disc which is screwed onto the second or inner end and which serves as the head of the pin member for passing the pin member through the through hole and Rastabrough- opening of the spring element.
  • Figure 1 is a partially transparent and partially sectioned perspective view of an embodiment of a Kippsegmentlagers invention for supporting a shaft.
  • FIG. 2 shows a schematic and greatly simplified sectional view of a section of the tilting-pad bearing according to the invention according to FIG. 1;
  • Fig. 3 is a perspective view of a conventional spring element
  • Fig. 4 is a perspective view of a spring element, as used in the tilting pad bearing according to the invention according to FIGS. 1 and 2, wherein a
  • FIG. 5 shows the perspective view of the spring element according to FIG. 4;
  • FIG. 6 shows a schematic and greatly simplified sectional view of a section of a further tilting pad bearing according to the invention
  • FIG. 7 shows a schematic and greatly simplified sectional view of a detail of a still further tilting pad bearing according to the invention.
  • Kippsegmentlagers invention according to FIG. 7.
  • the manufacturing complexity in the tilting pad bearing can be reduced. Furthermore, by an alternative assembly concept, the assembly can be simplified and, moreover, the positionability of the shaft to be supported by the tilting pad bearing can be improved, as in
  • Fig. 1 is a partially transparent and partially sectioned perspective view of an embodiment of a Kippsegmentlagers 7 according to the invention for supporting a shaft 4 is shown.
  • Fig. 2 shows a schematic and greatly simplified
  • FIGS. 4 and 5 each show a perspective view of a spring element 10, as used in the tilting pad bearing 7 according to the invention according to FIGS. 1 and 2, as well as in the further exemplary embodiments of the invention
  • Tilting pad bearings 7 in FIGS. 6 to 8 can be used.
  • 1 and 2 has a sleeve 8, in which a plurality of tilting segments 1 1, for example, graphite tilting segments, are arranged.
  • a plurality of tilting segments 1 1 is greatly simplified in the cutout in Fig. 2 and not shown to scale with a dotted line.
  • a spring element 10 is arranged between the inside of the sleeve 8 and the respective tilting segment 1 1, a spring element 10 is arranged.
  • the gap between the inside of the sleeve 8 and the outside of the respective spring element 10 is adjusted to adjust the bias of the respective spring element 10.
  • the setting of the gap is carried out by a
  • Adjustment device 12 which is coupled or connected to the respective spring element 10 by latching, as shown in Figs. 1 and 2.
  • the adjusting means 12 comprises a pin member 13 having a head 14 at a first or inner end, the pin member 13 being provided with an external thread.
  • a corresponding screw can form the pin element 13 with the head 14.
  • the associated tilting segment 1 1 has, as shown in FIGS. 1 and 2, on its outer side a recess 15, in which the head 14 of the pin member 13 is receivable. This space can be saved.
  • the adjusting device 12 has a nut 16 with a corresponding internal thread, which is screwed to a second or outer end of the pin member 13.
  • the pin member 13 is received in a through hole 17 of the sleeve 8, wherein the head 14 of the pin member 13 is arranged in the sleeve 8 and the screwed onto the pin member 13 nut 16 on the outside of the sleeve 8.
  • the sleeve 8 in this case optionally has an additional recess 18 on the outside, as shown in Figs. 1 and 2, in which the nut 16 is receivable, for example, is receivable flush.
  • the nut 16 is receivable, for example, is receivable flush.
  • Spring element 9 with its bore 19 on a corresponding pin element of a Einsteil originally be threaded before the adjusting device can then be mounted together with the spring element 19 in the sleeve 8.
  • FIGS. 4 and 5 show an example of a spring element 10 according to the invention, as can be used in the tilting pad bearing according to the invention in FIGS. 1, 2 and 6 to 8.
  • the spring element 10 has a through hole 20, which is for example circular, as indicated in Fig. 4 by a dotted line, and e.g. three flexible latching portions 21, which are for example distributed uniformly along the edge of the through hole 20.
  • the passage opening 20 with its flexible latching portions 21 is dimensioned sufficiently large to be pushed over the head 14 of the pin member 13, wherein the flexible latching portions 21 are pressed during the passage of the head 14 initially to the outside before then spring back.
  • the latching portions 21 point in the starting position, as shown in FIGS. 4 and 5, in the direction of the center of the passage opening 20 or inwards. Furthermore, the latching portions 21 from the outside in or in the direction of the center of the
  • End edge 22 for example, on a common circle and form such a
  • the diameter of the latching section opening, here the circular latching section opening 25, is smaller than the diameter of the passage opening 20.
  • Detent portion opening 25 in this case has a diameter on the example equal to or greater than the outer diameter of the pin member 13 and smaller than the outer diameter of the head 14 of the pin member 13 in Fig. 1 and 2 and the corresponding also, as stated previously, smaller than the diameter the passage opening 20 is.
  • This allows the spring element 10 via the head 14 of the pin member 13 in Figs. 1 and 2 be pushed and the locking portions 21 while pushing to the side. After passing the head 14, the locking portions 21 spring back so that the spring element 10 can not accidentally slip off the pin member 13, but is held by the head 14.
  • the nut 14 is tightened accordingly. In this case, the mother 14 along the
  • Threaded portion of the pin member 13 is screwed in the direction of the sleeve 8 and the distance or gap between the outside of the spring element 10 and the inside of the sleeve 8 and adjusted according to the bias of the spring element 10.
  • the passage opening 20 of the spring element 10 in FIGS. 4 and 5 does not necessarily have a circular shape and the outer ends or end edges 22 of the latching sections 21 do not necessarily have to lie on a common circle and accordingly form a circular latching section opening 25.
  • the pin member 13 and its head 14 the
  • Through opening 20 and formed by the locking portions 21 Rastabrough- opening 25 have any shape that is suitable to pass the pin member 13 with its head 14 through the through hole 20 and locking portion opening 25 and the locking portions 21 to lock the pin member 13 or to clipping.
  • the locking portions 21 are together with the spring element 10, for example, on a common plan or, as indicated in Fig. 4 and 5, curved plane.
  • the locking portions 21 relative to the remaining spring element 10 also in the direction of the sleeve 8 or the tilting segment 1 1 bent, e.g. be curved, and form a spring element with a bulge or cup-shaped bulge, depending on the function and purpose.
  • FIG. 6 shows a schematic and greatly simplified sectional view of a section of a tilting pad bearing 7 according to a further embodiment of the invention.
  • the tilting pad bearing 7 according to the invention according to FIG. 6 has the same structure as the tilting pad bearing according to FIGS. 1 and 2, so that reference is made here to the explanations for FIGS. 1 and 2 in order to avoid unnecessary repetitions.
  • the tilting pad bearing 7 according to FIG. 6 differs from the tilting pad bearing according to FIGS. 1 and 2 by its adjusting device 12, as will be explained in detail below.
  • Fig. 6 the sleeve 8 and one of the tilting segments 1 1 with the adjusting device 12 and the associated spring element 10 is shown.
  • the spring element 10 previously shown by way of example in FIGS. 4 and 5 is also used, this being in its
  • a head 27 is provided, which is fixed to the pin member 13, for example
  • the sleeve 8 may optionally be additionally provided with a recess on its outer side for receiving the head, for example for flush receiving the head 27.
  • the pin member 13 is through a
  • the distance or gap between the inside of the sleeve 8 and the outside of the spring element 10 for adjusting the bias of the spring element 10 is determined by the position of the recess 26, e.g. Groove, determined. Accordingly, the
  • Recess 26 provided at a predetermined position on the pin member 13 and in particular at its first or inner end, with which the desired distance or gap between the inside of the sleeve 8 and the outside of the spring element 10 is adjusted and the thus desired bias of the spring element 10 can be achieved can.
  • the recess 26 can be incorporated in the pin member 13, e.g. by turning or another suitable method or combination of methods.
  • the passage opening 20 with its flexible latching portions 21 is dimensioned sufficiently large to the first or inner end of the pin member 13th
  • Latch portion opening 25 has a diameter on the e.g. equal to or greater than the outer diameter of the recess 26, e.g. Groove, the pin member 13 but smaller than the outer diameter of the first or inner end of the pin member 13 in Fig. 6 and the corresponding also, smaller than the diameter of the through hole 20 is.
  • the spring element 10 can be pushed over the first or inner end of the pin member 13 in Fig. 6 and the locking portions 21 while pushing to the side. After passing the inner end and reaching the recess 26, the locking portions 21 spring back, so that the spring element 10 can not accidentally slip off the pin member 13, but snap into its recess 26 or clip and thereby in the recess 26 of the pin member 13 can be held.
  • Fig. 7 is a schematic and highly simplified sectional view of a section of a Kippsegmentlagers 7 shown according to yet another embodiment of the invention.
  • the tilting pad bearing 7 according to the invention according to FIG. 7 has the same structure as the tilting pad bearing according to FIGS. 1 and 2, so that reference is made to the explanations here to FIGS. 1 and 2 in order to avoid unnecessary repetitions.
  • the tilting pad bearing 7 is shown with its sleeve 8 and one of the tilting segments 1 1 with its Einsteil worn 12 and the associated spring element 10.
  • the spring element 10 previously shown by way of example in FIGS. 5 and 6 is used, wherein this is adapted in its dimensioning to the adjusting device 12 in Fig. 7.
  • the Kippsegmentlager 7 of FIG. 7 differs from the
  • Tilting segment bearing according to FIGS. 1 and 2 also by its adjusting device 12, as will be explained in detail below.
  • the adjusting device 12 in Fig. 7, a pin member 13 with a head 27, wherein the pin member 13 is provided at its first or inner end with a recess 26, for example, an at least partially or completely circumferential groove for snapping or clipping the locking portions 21st
  • the first or inner end is additionally bevelled or conical, to the Performing the first or inner end of the pin member 13 through the passage opening 20 of the spring element 10 to simplify.
  • the pin member 13 is provided at its second or outer end in a portion with an external thread, which in the assembled state in
  • the sleeve 8 may optionally have an additional recess, not shown, on the outside, as shown previously in Figs. 1 and 2, in which the head 27 is receivable, for example, is receivable flush.
  • the head 27 is receivable, for example, is receivable flush.
  • the gap between the inside of the sleeve 8 and the outside of the respective spring element 10 is adjusted.
  • the setting of the gap is effected by an adjusting device 12, which is coupled or connected by latching with the respective spring element 10.
  • the pin member 13 is screwed suitably deep into the threaded bore 28 of the sleeve 8 and the distance or gap between the outside of the spring member 10 and the inside of the sleeve 8 and adjusted accordingly the bias of the spring element 10.
  • the distance or gap between the inside of the sleeve 8 and the outside of the spring element 10 for adjusting the bias of the spring element 10 is not determined in Fig. 7 by the position of the recess 26, but adjusted by the pin member 13.
  • the spring element 10 is also, as previously engaged or clipped in the recess 26 at the first or inner end of the pin member 13 in the embodiment in Fig. 6.
  • the passage opening 20 of the spring element 10 with its flexible locking portions 21 is sufficiently large to be pushed over the first or inner end of the pin member 13, wherein the flexible locking portions 21 are pressed while performing the first or inner end first to the outside They then spring back and snap into the recess 26 or be clipped.
  • the first or inner end is in the Embodiment in Fig. 7 additionally bevelled to facilitate passage through the through hole 20 and the locking portion opening 25 of the spring element 10.
  • Latch portion opening 25 has a diameter on the e.g. equal to or greater than the outer diameter of the recess 26, e.g. Groove, the pin member 13 but smaller than the largest outer diameter of the first or inner end of the pin member 13 in Fig. 7 and the corresponding also, smaller than the diameter of the through hole 20 is.
  • the spring element 10 can be pushed over the first or inner end of the pin member 13 in Fig. 7 and the latching portions 21 while pushing to the side. After passing the inner end and reaching the recess 26, the locking portions 21 spring back, so that the spring element 10 can not accidentally slip off the pin member 13, but snap into its recess 26 or clip and thereby in the recess 26 of the pin member 13 can be held.
  • FIG. 8 shows a greatly simplified and purely schematic and not to scale front view of the tilting pad bearing 7 according to the invention as shown in FIG.
  • the tilting pad bearing 7 in this case has three tilting segments 1 1, which are accommodated in the sleeve 8, for supporting a shaft 4.
  • Each of the tilting segments 11 is assigned a spring element 10 with the respective adjusting device 12.
  • Setting direction 12 is greatly simplified in FIG. 8 and indicated by a dashed line.
  • the spring element 10 is snapped or clipped into the recess of the associated first or inner end of the pin member 13 and the spring bias is tightened by screws
  • Pin member 13 set along the threaded hole.
  • the recess is not shown in Fig. 8 for reasons of clarity.
  • the tilting pad bearing 7 according to the invention can also have only two tilting segments or more than three tilting segments 11. This applies to all embodiments of the invention, in particular the embodiments shown in FIGS. 1, 2 and 4 to 7.
  • the advantage of the tilting pad bearing 7 according to the invention, as shown by way of example in FIGS. 3 to 10, is that it can be easily mounted by the tilting pad bearing 7 according to the invention.
  • Spring elements 10 can be easily connected to the adjusting device 12, if they already have e.g. is mounted in the sleeve.
  • a shaft 4 to be supported by the tilting-pad bearing 7 according to the invention can be aligned centrally, in particular exactly in the center.
  • Manufacturing tolerances can be corrected by a subsequent adjustment of the bias of the respective spring element 10 and thus the gap geometry, for example between shaft and tilting segment, so that in particular the shaft can be positioned in the radial direction.
  • Another advantage lies in the flexible influenceability of the gap geometry between the shaft and the tilting pad bearing and its tilting segments and thus the bearing behavior of the tilting pad bearing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un palier à patins oscillants (7) qui comprend : une douille (8), plusieurs patins oscillants (11) logés dans la douille (8), un élément ressort (10) étant placé entre la douille (8) et le patin oscillant (11) auquel il est associé, un jeu entre la face interne de la douille (8) et la face externe de l'élément ressort (10) pouvant être réglé par le biais d'un dispositif de réglage (12) qui est couplé à l'élément ressort (10) par encliquetage.
PCT/EP2017/070263 2016-08-31 2017-08-10 Palier à patins oscillants WO2018041577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016216383.3 2016-08-31
DE102016216383.3A DE102016216383A1 (de) 2016-08-31 2016-08-31 Kippsegmentlager

Publications (1)

Publication Number Publication Date
WO2018041577A1 true WO2018041577A1 (fr) 2018-03-08

Family

ID=59677212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/070263 WO2018041577A1 (fr) 2016-08-31 2017-08-10 Palier à patins oscillants

Country Status (2)

Country Link
DE (1) DE102016216383A1 (fr)
WO (1) WO2018041577A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151438A (zh) * 2021-11-05 2022-03-08 上海大学 一种基于压电作动器主动控制的柔性可倾瓦轴承
DE102021124856A1 (de) 2021-09-27 2023-03-30 Voith Patent Gmbh Kippsegmentradiallager und Wellenanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB109959A (en) * 1917-06-27 1917-10-04 Henry Thornton Newbigin Improvements in Journal Bearings.
DE102010049493A1 (de) 2010-10-27 2012-05-03 Voith Patent Gmbh Kippsegmentlager
DE102013223329A1 (de) * 2013-11-15 2015-05-21 Bosch Mahle Turbo Systems Gmbh & Co. Kg Gasdynamisches Luftlager

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB109959A (en) * 1917-06-27 1917-10-04 Henry Thornton Newbigin Improvements in Journal Bearings.
DE102010049493A1 (de) 2010-10-27 2012-05-03 Voith Patent Gmbh Kippsegmentlager
DE102013223329A1 (de) * 2013-11-15 2015-05-21 Bosch Mahle Turbo Systems Gmbh & Co. Kg Gasdynamisches Luftlager

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021124856A1 (de) 2021-09-27 2023-03-30 Voith Patent Gmbh Kippsegmentradiallager und Wellenanordnung
WO2023046947A1 (fr) 2021-09-27 2023-03-30 Voith Patent Gmbh Palier radial à patins oscillants et ensemble arbre
CN114151438A (zh) * 2021-11-05 2022-03-08 上海大学 一种基于压电作动器主动控制的柔性可倾瓦轴承

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Publication number Publication date
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