DK168544B1 - Device for connecting an elongate member with a supporting structure - Google Patents
Device for connecting an elongate member with a supporting structure Download PDFInfo
- Publication number
- DK168544B1 DK168544B1 DK43892A DK43892A DK168544B1 DK 168544 B1 DK168544 B1 DK 168544B1 DK 43892 A DK43892 A DK 43892A DK 43892 A DK43892 A DK 43892A DK 168544 B1 DK168544 B1 DK 168544B1
- Authority
- DK
- Denmark
- Prior art keywords
- plate
- transverse direction
- piece
- plate piece
- distance
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
- Vibration Prevention Devices (AREA)
- Exhaust Gas After Treatment (AREA)
Description
i DK 168544 B1in DK 168544 B1
Opfindelsen angår en indretning til at forbinde et aflangt, relativt tyndvægget element, der udsættes for vibrationer og kan udvide sig termisk i tværretningen, med en bærende struktur, som i tværretningen lig-5 ger i afstand fra elementet, hvilken indretning omfatter et første pladestykke, som er fast forbundet med strukturen og strækker sig hen mod elementet, et andet pladestykke, som er fast forblindet med elementet og strækker sig hen mod strukturen, samt et første samle-10 organ, der er fastgjort til både det første og det andet pladestykke og tillader disse indbyrdes bevægelse i tværretningen, men i det væsentlige ingen indbyrdes bevægelse vinkelret herpå.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a device for connecting an oblong, relatively thin-walled element, which is subjected to vibration and can expand thermally in the transverse direction, with a supporting structure which is transverse to the element, which comprises a first plate piece, which is firmly connected to the structure and extends toward the element, a second plate piece which is firmly blinded to the element and extends toward the structure, and a first assembly member attached to both the first and second plate pieces and permits these mutual movement in the transverse direction, but substantially no mutual movement perpendicular thereto.
Aflange, forholdsvis tyndvæggede elementer ind-15 går i mange motoranlæg, hvor motoren under drift inducerer vibrationer og termiske påvirkninger i anlæggets forskellige dele. Det tyndvæggede element kan eksempelvis være en beholder eller en udstødsreceiver. Når elementet udsættes for varierende temperaturbelastninger, 20 vil dets dimension i tværretningen ændres, så at afstanden mellem elementets yderside og den bærende struktur ændres. Dette stiller særlige krav til forbindelsesindretningen, idet denne varierende afstand må optages i indretningen, hvis en egentlig deformation af 25 elementet eller strukturen skal undgås.Elongated, relatively thin-walled elements are included in many engine systems where the engine in operation induces vibrations and thermal stresses in the various parts of the system. The thin-walled element may be, for example, a container or an exhaust receiver. When the element is subjected to varying temperature loads, its dimension in the transverse direction will change so that the distance between the outer surface of the element and the supporting structure changes. This places special demands on the connecting device, since this varying distance must be accommodated in the device if an actual deformation of the element or structure is to be avoided.
I skibsmotoranlæg bliver de tyndvæggede elementer i tillæg til vibrationspåvirkningerne fra motoren udsat for kraftpåvirkninger stammende fra skibets bevægelser i søen. For at fastholde det tyndvæggede ele-30 ment til eksempelvis på motoren fastgjorte gallerier er det påkrævet, at forbindelsesindretningen kan overføre DK 168544 B1 2 forholdsvis store kræfter i retninger vinkelret på tværretningen samtidig med, at bevægeligheden i tværretningen bibeholdes.In ship engine installations, the thin-walled elements, in addition to the vibration effects from the engine, are subjected to force effects arising from the ship's movements in the lake. In order to maintain the thin-walled element for, for example, galleries affixed to the motor, it is required that the connecting device can transfer relatively large forces in directions perpendicular to the transverse direction while maintaining movement in the transverse direction.
Det har vist sig, at der i det tyndvæggede ele-5 ment i området omkring det andet pladestykkes fastgørelse på elementet kan opstå udmattelsesrevner.It has been found that in the thin-walled element in the area around the attachment of the second plate piece to the element fatigue cracks can occur.
Formålet med opfindelsen er at anvise en indretning, som i mindre grad fremkalder udmattelsesrevner i det tyndvæggede element.The object of the invention is to provide a device which produces less fatigue cracks in the thin-walled element.
10 Med henblik herpå er indretningen ifølge opfin delsen ejendommelig ved, at et tredje pladestykke er fast forbundet med det ene af de to pladestykker og er forbundet med det andet af de to pladestykker gennem et andet samleorgan, der i tværretningen ligger i afstand 15 fra det første samleorgan, og som i tværretningen, men i det væsentlige ikke vinkelret herpå, tillader bevægelse af det tredje pladestykke i forhold til enten strukturen eller elementet.For this purpose, the device according to the invention is characterized in that a third plate piece is fixedly connected to one of the two plate pieces and is connected to the other of the two plate pieces through a second connecting member located in the transverse direction away from it. first assembly means, and as in the transverse direction, but not substantially perpendicular thereto, allows movement of the third sheet member relative to either the structure or element.
Det er velkendt, at udmattelsesrevner kan optræ-20 de i et pladeelement, der vibrerer i forhold til et fast punkt. Imidlertid er det med opfindelsen erkendt, at udmatteisesrevnerne antagelig skyldes, at det andet pladestykke i den kendte indretning kan svinge omkring det første pladestykke om en svingningsakse, der står 25 vinkelret på både det tyndvæggede elements længderetning og på den tværretning, hvori indretningen er beliggende. Disse svingninger er muliggjort af samleorga-nets fleksibilitet i tværretningen, idet den i længderetningen ene ende af samleorganet periodisk vil bevæge 30 sig op- og nedad, mens den anden ende udfører en modsatrettet bevægelse. Svingningerne af det andet plade-stykke fremkalder en periodisk voksende og aftagende udbuling af elementets tynde væg, hvilket kan lede til udmattelsesrevner.It is well known that fatigue cracks can occur in a plate element that vibrates relative to a fixed point. However, it is recognized by the invention that the fatigue cracks are probably due to the fact that the second plate piece in the known device can pivot about the first plate piece about a pivot axis which is perpendicular to both the longitudinal direction of the thin-walled element and the transverse direction in which the device is located. These oscillations are made possible by the flexibility of the collector in the transverse direction, in that the longitudinal end of one of the collector means periodically moves up and down while the other end performs an opposite movement. The oscillations of the second plate piece induce a periodically growing and decreasing bulge of the thin wall of the element, which can lead to fatigue cracks.
35 Det tredje pladestykke følger med i enhver be vægelse af det pladestykke, hvormed det er stift for- DK 168544 B1 3 bundet, og det andet samleorgan fikserer i retninger vinkelret på tværretningen det tredje pladestykke i forhold til det andet samleorgans fastgørelse på enten det første eller det andet pladestykke. Afstanden i 5 tværretningen mellem de to samleorganer bevirker, at det tredje pladestykke er hindret i drejning omkring enhver akse, der står vinkelret på tværretningen. Dermed hindrer det tredje pladestykke drejning mellem det første og det andet pladestykke. Indretningen ifølge 10 opfindelsen kan således i tillæg til evnen til overførsel af kræfter virkende vinkelret på tværretningen også overføre momentpåvirkninger mellem det tyndvæggede element og den bærende struktur, hvilket stort set hindrer periodisk udbuling af elementets tynde væg. Indretnin-15 gen tillader dermed kun en ren forskydning i tværretningen af elementet i forhold til strukturen.35 The third plate piece is included in any movement of the plate with which it is rigidly bound, and the second connecting member fixes in directions perpendicular to the transverse direction the third plate relative to the attachment of the second collecting member to either the first or the other record. The distance in the transverse direction between the two connecting means causes the third plate piece to be obstructed in rotation about any axis perpendicular to the transverse direction. Thus, the third piece of plate prevents rotation between the first and the second plate. Thus, in addition to the ability to transmit forces acting perpendicular to the transverse direction, the device according to the invention can also transmit torque effects between the thin-walled element and the supporting structure, which largely prevents periodic bulging of the thin wall of the element. The device thus permits only a pure displacement in the transverse direction of the element relative to the structure.
Indretningen kan gives en stor fleksibilitet i tværretningen og en evne til at overføre store kræfter i retninger vinkelret herpå ved, at både det første og 20 det andet samleorgan hensigtsmæssigt omfatter flere parallelle, tynde pladestrimler, der er stablet i tværretningen, og at de to til samleorganet hørende pladestykker er fastgjort ved hver sin ende af stablen. Når afstanden mellem elementet og strukturen ændres, vil 25 afstandsændringen optages som en deformation i samleor-ganerne, og da de tynde pladestrimler kan glide i forhold til hinanden, har samleorganet kun ringe stivhed i tværretningen. Pladestykkernes fastgørelse ved hver sin ende af stablen sikrer den størst mulige længde af det 30 deformationsoptagende stykke af samleorganet.The device can be given a great deal of flexibility in the transverse direction and an ability to transmit large forces in directions perpendicular thereto, in that both the first and the second collecting means conveniently comprise several parallel, thin plate strips stacked in the transverse direction and the connecting members of the collecting member are attached at each end of the stack. When the distance between the element and the structure is changed, the distance change will be absorbed as a deformation in the assembly means, and since the thin plate strips can slide relative to each other, the assembly member has only slight stiffness in the transverse direction. The attachment of the plate pieces at each end of the stack ensures the greatest possible length of the deformation receiving piece of the assembly.
I en særlig enkel udførelsesform forløber det tredje pladestykke parallelt med det første og det andet pladestykke, og det første og det andet samleorgan er indbyrdes parallelle.In a particularly simple embodiment, the third plate piece runs parallel to the first and second plate pieces, and the first and second assembly means are mutually parallel.
35 For at undgå for store kraftpåvirkninger på det andet samleorgan i retninger vinkelret på tværretningen DK 168544 B1 4 kan de fra drejningsmomenter stammende kræfter holdes på et acceptabelt niveau, ved at afstanden mellem de to samleorganer fortrinsvis mindst svarer til en trediedel af afstanden mellem elementet og strukturen.35 In order to avoid excessive force impacts on the second connecting member in directions perpendicular to the transverse direction DK 168544 B1 4, the forces arising from torque can be maintained at an acceptable level by the distance between the two connecting members preferably at least corresponding to one third of the distance between the element and structure.
5 Et eksempel på en udførelsesform ifølge opfin delsen beskrives herefter nærmere med henvisning til den meget skematiske tegning, hvor fig. 1 viser et sidebillede af en kendt forbindelsesindretning, og 10 fig. 2 og 3 indretningen ifølge opfindelsen, set i henholdsvis endebillede og sidebillede.An example of an embodiment of the invention will now be described in more detail with reference to the very schematic drawing, in which fig. 1 is a side view of a known connector, and FIG. 2 and 3, the device according to the invention, seen in end and side views respectively.
På tegningen ses et lille udsnit af et tyndvægget element 1, der kan være en udstøds receiver til en stor to-takts dieselmotor. Elementet 1 er langstrakt 15 og har en længdeakse, der strækker sig i pilen A's retning. Elementet er ved hjælp af en generelt med 2 betegnet forbindelsesindretning forbundet med en bærende struktur, som kan være et på motoren fastgjort galleri til understøtning af turboladere, kølere, udstøds-20 receiveren m.v.The drawing shows a small section of a thin-walled element 1, which can be an exhaust receiver for a large two-stroke diesel engine. The element 1 is elongated 15 and has a longitudinal axis extending in the direction of arrow A. The element is connected, by means of a generally designated connection device, to a supporting structure, which may be a gallery attached to the engine to support turbochargers, coolers, the exhaust receiver etc.
Et første pladestykke 4 er ved hjælp af bolte antydet ved 5 stift forbundet med strukturen 3.A first plate piece 4 is connected to the structure 3 by means of bolts indicated at 5 rigidly.
Et andet pladestykke 6 er ved hjælp af svejsning stift forbundet med elementet 1. De hen mod hin-25 anden vendende ender af de to pladestykker 4, 6 er forbundet indbyrdes gennem et første samleorgan 7, der er fleksibelt for bevægelser i tværretningen markeret ved pilen B, men er stift i retninger vinkelret på tværretningen, så at kræfter i disse retninger overfø-30 res direkte fra det ene til det andet pladestykke.A second plate piece 6 is rigidly connected to the element by means of welding. The opposite ends of the two plate pieces 4, 6 are connected to one another through a first connecting member 7, which is flexible for movements in the transverse direction marked by the arrow. B, but are rigid in directions perpendicular to the transverse direction, so that forces in these directions are transmitted directly from one plate to the other.
Samleorganets fleksibilitet i tværretningen muliggør en drejning af det andet pladestykke 6 i forhold til det første pladestykke 4 om drejningsakser stående stort set vinkelret på tværretningen. En for 35 styrken af elementet 1 særlig uheldig form for svingninger er med stærkt forstørret svingningsamplitude DK 168544 B1 5 vist med punkteret streg i fig. l. Pladestykket 6 med det tilhørende vægområde af elementet 1 svinger her omkring en ved pilen C antydet omdrejningsakse ved midten af samleorganet 7.The flexibility of the connecting member in the transverse direction enables a rotation of the second plate piece 6 relative to the first plate piece 4 about pivot axes standing substantially perpendicular to the transverse direction. A particularly unfortunate form of oscillations for the strength of the element 1 is shown with greatly enlarged oscillation amplitude DK 168544 B1 5 with a dashed line in FIG. Here, the plate piece 6, with the associated wall area of the element 1, swivels here about an axis of rotation indicated by the arrow C at the center of the collecting member 7.
5 Ved den efterfølgende beskrivelse af indretnin gen ifølge opfindelsen benævnes elementer af samme art som vist i fig. 1 med samme henvisningsnummer.5 In the following description of the device according to the invention, elements of the same kind as shown in FIG. 1 with the same reference number.
Det første og det andet pladestykke 4, 6 ligger i samme plan og har hver ved den frie ende en flan-10 ge 8, 9, hvortil det første samleorgan 7 er fastgjort ved hjælp af bolte antydet ved 10, som spænder samleorganet 7's ene ende ind mellem en holdeliste hhv. 11 og 12 og sidefladen af den tilhørende flange hhv. 8 og 9.The first and second plate pieces 4, 6 lie in the same plane and each have at the free end a flange 8, 9, to which the first connecting member 7 is secured by bolts indicated by 10, which span the one end of the collecting member 7 in between a team list respectively. 11 and 12 and the side surface of the associated flange respectively. 8 and 9.
15 Samleorganet 7 består af flere tynde metalli ske pladestrimler, der er samlet til en stabel og strækker sig over hele længden af flangerne 8 og 9.The assembly member 7 consists of several thin metallic sheet strips which are assembled into a stack and extend over the entire length of the flanges 8 and 9.
Et tredje pladestykke 13 er med en flange 14 boltet således fast til flangen 9 på det andet plade-20 stykke, at det andet og det tredje pladestykke er stift forbundne. Den modstående ende af det tredje pladestykke har en flange 15, hvortil den ene ende af et andet samleorgan 16 er fikseret ved hjælp af en holdeliste 17 fastspændt til flangen ved hjælp af bolte antydet 25 ved 18. Den anden ende af det andet samleorgan 16 er ved hjælp af en holdeliste 19 og bolte antydet ved 20 spændt fast til et fodparti 21 på det første pladestykke, så at samleorganet forbinder det tredje og det første pladestykke.A third plate 13 is bolted to the flange 9 on the second plate 20 by a flange 14 so that the second and third plates are rigidly connected. The opposite end of the third plate member has a flange 15 to which one end of another connecting member 16 is fixed by means of a retaining strip 17 clamped to the flange by bolts indicated 25 by 18. The other end of the second connecting member 16 is by means of a retaining strip 19 and bolts indicated by 20 clamped tightly to a foot portion 21 of the first plate piece so that the connecting means connects the third and the first plate piece.
30 Det tredje pladestykke 13 vil i tværretningen markeret ved pilen B følge med i det andet pladestykke 6's bevægelser under samtidig bøjning af de to sam-leorganer 7, 16, men vil som følge af det andet samleorgan 16's manglende fleksibilitet i de tynde plade-35 strimlers plan hindre enhver drejning om aksen markeret ved pilen C af det andet pladestykke 6 i forhold til DK 168544 B1 6 det første pladestykke 4. Indretningen ifølge opfindelsen er dermed i stand til at overføre momentpåvirkninger fra elementet 1 til strukturen 3.The third plate piece 13 will, in the transverse direction marked by the arrow B, follow the movements of the second plate piece 6 while simultaneously bending the two connecting members 7, 16, but will, due to the lack of flexibility of the second collecting member 16 in the thin plate 35 the plane of the strip prevents any rotation about the axis marked by arrow C of the second plate piece 6 relative to DK 168544 B1 6 the first plate piece 4. The device according to the invention is thus capable of transferring torque effects from the element 1 to the structure 3.
For enkelheds skyld kan det første og det andet 5 samleorgan være udformet på samme måde. Pladestykkerne 4, 6 og 13 er hensigtsmæssigt parallelle, så samleorga-nerne har samme længde, men det er dog muligt at lade et eller flere af de tre pladestykker være indbyrdes skråtstillede. Det er heller ikke nødvendigt at samle-10 organerne forløber fuldstændig parallelt med hinanden.For the sake of simplicity, the first and second collecting means may be designed in the same way. The plate pieces 4, 6 and 13 are suitably parallel so that the collecting members are of the same length, but it is possible, however, to allow one or more of the three plate pieces to be inclined to one another. Also, it is not necessary for the collecting means to run completely parallel to each other.
Det tredje pladestykke 13 kan være kortere i tværretningen, og i dette tilfælde må det andet samleorgan 16 fastgøres på en flange, som er beliggende et stykke oppe ad det første pladestykke 4.The third plate piece 13 may be shorter in the transverse direction, and in this case the second connecting member 16 must be secured to a flange located a distance up the first plate piece 4.
1515
Claims (4)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK43892A DK168544B1 (en) | 1992-04-01 | 1992-04-01 | Device for connecting an elongate member with a supporting structure |
| KR1019930004499A KR100233882B1 (en) | 1992-04-01 | 1993-03-23 | A connection member |
| DE19934309615 DE4309615C2 (en) | 1992-04-01 | 1993-03-24 | Fastener |
| JP5068627A JP3053994B2 (en) | 1992-04-01 | 1993-03-26 | Coupling device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK43892 | 1992-04-01 | ||
| DK43892A DK168544B1 (en) | 1992-04-01 | 1992-04-01 | Device for connecting an elongate member with a supporting structure |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK43892D0 DK43892D0 (en) | 1992-04-01 |
| DK43892A DK43892A (en) | 1993-10-02 |
| DK168544B1 true DK168544B1 (en) | 1994-04-18 |
Family
ID=8093546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK43892A DK168544B1 (en) | 1992-04-01 | 1992-04-01 | Device for connecting an elongate member with a supporting structure |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3053994B2 (en) |
| KR (1) | KR100233882B1 (en) |
| DE (1) | DE4309615C2 (en) |
| DK (1) | DK168544B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK177989B1 (en) * | 2014-02-27 | 2015-02-16 | Man Diesel & Turbo Deutschland | A large two-stroke internal combustion engine and an exhaust gas receiver for a large two-stroke internal combustion engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490437A (en) * | 1994-08-25 | 1996-02-13 | Hebert; Paul W. | Hammer |
| DK177325B1 (en) * | 2011-01-25 | 2013-01-07 | Man Diesel & Turbo Deutschland | A large two-stroke diesel engine and a supporting plate structure for connection between an engine main structure and an exhaust gas receiver |
-
1992
- 1992-04-01 DK DK43892A patent/DK168544B1/en not_active IP Right Cessation
-
1993
- 1993-03-23 KR KR1019930004499A patent/KR100233882B1/en not_active IP Right Cessation
- 1993-03-24 DE DE19934309615 patent/DE4309615C2/en not_active Expired - Fee Related
- 1993-03-26 JP JP5068627A patent/JP3053994B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK177989B1 (en) * | 2014-02-27 | 2015-02-16 | Man Diesel & Turbo Deutschland | A large two-stroke internal combustion engine and an exhaust gas receiver for a large two-stroke internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DK43892A (en) | 1993-10-02 |
| KR100233882B1 (en) | 2000-03-02 |
| DK43892D0 (en) | 1992-04-01 |
| DE4309615A1 (en) | 1993-10-07 |
| JP3053994B2 (en) | 2000-06-19 |
| DE4309615C2 (en) | 2001-03-22 |
| JPH0688536A (en) | 1994-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A0 | Application filed | ||
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |
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