EP0956390B1 - Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges - Google Patents
Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges Download PDFInfo
- Publication number
- EP0956390B1 EP0956390B1 EP97955078A EP97955078A EP0956390B1 EP 0956390 B1 EP0956390 B1 EP 0956390B1 EP 97955078 A EP97955078 A EP 97955078A EP 97955078 A EP97955078 A EP 97955078A EP 0956390 B1 EP0956390 B1 EP 0956390B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- curve path
- curve
- switch
- beginning
- curvature
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/15—Layout or geometry of the track
Definitions
- the invention relates to a curve of a switch with switch tongues, a main track and a branch track, whereby the curve from the beginning of the curve to the end of the curve consists of several sections of different curvature 1 / R, where R is the radius of curvature.
- WO 95/31604 is a curve for the course of rails to be taken from the main track to a branch track, on which likewise starting from a first end section with a Radius of curvature starting towards infinity, the other End of the turnout again with a radius towards infinity is designed to provide additional vibrations, to avoid that can interfere with vehicles.
- a curve was chosen, which consists of three sections, three sections of approximately the same length are used. Starting from a curvature with a curvature radius tending towards infinity becomes a middle section with constant curvature chosen, the radius of which represents a minimum over the curve.
- the invention now aims to create a curve of the type mentioned, in which there is less wear on the components and thus a longer service life and lower overall costs, especially in high-speed operation. At the same time, the invention aims to improve the maintenance and driving comfort of such switches, especially for high-speed switches.
- the curvature 1 / R defines a dimensionless coefficient of curvature ⁇ , which is equal to the quotient of the current curvature 1 / R and the maximum curvature 1 / R min , the maximum curvature in turn resulting from the quotient 1 by the minimum radius.
- ⁇ can assume values between 0 and 1, so at the points where ⁇ is 0, the radius tends towards infinity, since the minimum radius has a finite value. At the point of the maximum curvature and thus the minimum radius, this coefficient ⁇ takes the value 1.
- a coefficient ⁇ is defined below, which relates the respective distance of the point of the curve in question from the start of the curve to the total length of the curve.
- the value ⁇ is therefore 0 at the beginning of the curve and 1 at the end of the curve and takes any values between 0 and 1 in direct proportion to the distance from the beginning of the curve.
- ⁇ A and ⁇ E are between 0 and 0.5 and ⁇ for ⁇ max between 0.45 and 0.8 and not equal to 0.5 for a switch used on both sides.
- a switch used on both sides means that the switch is used both sharply and bluntly.
- a switch used mainly in one direction is designed with particular advantage such that ⁇ A between 0 and 0.5, ⁇ E between 0.5 and 1 and ⁇ for ⁇ max between 0.4 and 1 and unequal for a switch used with a point 0.5 is selected and that ⁇ A between 0.3 and 0.7, ⁇ E between 0 and 0.5 and v for ⁇ max between 0.3 and ⁇ 0.5 is selected for a dull switch.
- the values for the various curve geometries given above for the different directions of travel have been optimized with regard to minimal lateral acceleration and inlet jerk as well as less wear and tear and small wheel rail forces.
- a low lateral acceleration and infeed jerk ensure a high level of comfort when driving over the turnout, low wear and low wheel rail forces enable the turnout to have a long service life.
- the inventive design is particularly advantageous so that between the beginning of the curve and the Curves one and only one point of maximum curvature or with a minimum radius of ⁇ ⁇ 0.5 is provided.
- the departure from the previously chosen symmetry, for example was proposed in WO 95/31604 with a significant improvement in comfort and a reduction associated with wear.
- the curve geometry have the shape of an apex clothoid in the curved course, where ⁇ in the case of using such Apex clothoid in accordance with that chosen above Definition assumes a value of ⁇ 0.5.
- the training is made in a particularly simple manner that the sections of Clothoids and / or cosinoids are formed.
- the curve geometry with particular advantage so defined that at a point with a high degree of curvature Curve end is arranged.
- vertex clothoids and Cosinoids usually become one and only one place maximum curvature observed, in which case the training is taken so that with vertex clothoids or Cosinoids, especially the point where the stump is driven over Curvature is arranged closer to the beginning of the curve.
- the curve according to the invention is particularly suitable for the formation of track connections which are to be traveled at high speeds.
- a track connection according to the invention using switches of the type mentioned at the beginning, which are traversed on both sides, is preferably designed in such a way that the curve ends merge with an ⁇ E between 0 and 0.5 into a rectilinear connecting section.
- the track connection is made in a particularly preferred manner such that the straight portion has a curve, a length of 5 to 30% of the total length L ges.
- This straight-line connection section in a ratio of 5 to 30% of the total length of a curve train achieves a considerably increased calming of the vehicle running.
- the switch geometries according to the invention are therefore above all Things for high-speed track connections can be used, the combination of different turnout geometries, as defined above, one much lower wear and a much higher Ensure durability.
- FIG. 1 shows a schematic top view a conventional track connection, on which two branch tracks using a constant radius of curvature in pass over a substantially rectilinear intermediate section.
- the associated diagram is shown in FIG which is the curvature 1 / R over the length L of the track connection was applied.
- Fig. 3 is now 1 / R instead of the curvature the dimensionless coefficient of curvature ⁇ over the length of a Track connection applied with the curves according to the invention
- 4 shows a single turnout geometry of a vertex clothoid, where ⁇ was plotted against ⁇
- Fig. 5 shows an analog representation for a cosinoid
- FIG. 6 to 8 show the values for special switch designs.
- Fig. 1 the main track is in each case designated 1, wherein the length of the respective curve path with L ges is referred to in the illustration of FIG. 2.
- 1 and 2 a conventional curve geometry according to the prior art was shown, with the branch tracks 2 branching off with a constant radius and merging into a straight-line central section 3.
- the change in the curvature 1 / R over the length L of the track connection can be seen directly in FIG. 2.
- a track connection is shown schematically, which is used in both directions.
- a clothoid between the sections ⁇ 1 to ⁇ 2 , a circular arc between ⁇ 2 and ⁇ 3 and a further clothoid between ⁇ 3 and ⁇ 4 were arranged within the single curve, whereby the straight section of the track connection was arranged between ⁇ 4 and ⁇ 5 is.
- This illustration shows.
- the first clothoidal portion which is characterized by a linear increase in the value ⁇ from ⁇ 1 to ⁇ 2 and is denoted by 4, passes at the point ⁇ 2 at maximum curvature and thus the smallest radius of curvature into a circular arc section 5, the length of which varies ⁇ 2 to ⁇ 3 extends.
- the value ⁇ 2 or ⁇ 3 is by definition equal to 1, whereupon the curve then changes into a clothoid 6, which now ends with ⁇ 4 ⁇ ⁇ 1 and ⁇ 0.
- the ratio ⁇ has a value of approximately 0.2 to 0.3 in the selected exemplary embodiment, the straight-line section extending to the end of the second curve at ⁇ 5 , At this point the clothoid with dull traffic was again formed with an ⁇ 5 ⁇ 0, so that here too there is a discontinuous transition into the curve of the subsequent switch.
- the second switch of this track connection is mirror-symmetrically identical to the asymmetrically constructed first switch, so that here again a clothoid 6 is provided in the inlet area and, following ⁇ 6, a circular arc section 5 which opens into a clothoid 4.
- the vertex clothoid 7 for the peak travel has its maximum curvature or its maximum ⁇ at the point ⁇ 3 , the value here being designated ⁇ 3 .
- the clothoid itself is again asymmetrical, the course of 1 / R having a kink at the point ⁇ 2 .
- ⁇ 1 ⁇ 0 is chosen in deviation from the design during pointed travel.
- ⁇ rises to the point ⁇ 2 and reaches the maximum ⁇ 2 closer to the start of the curve, which is traveled bluntly.
- ⁇ 3 at position ⁇ 3 is again chosen to be greater than 0 and not equal to ⁇ 1 at position ⁇ 1 .
- ⁇ 1 at the point ⁇ 1 > 0 and passes through a maximum at the point ⁇ 2 with the value ⁇ 2 .
- the change in the radius of the curve continues up to the point ⁇ 3 on the end of the cosinoids facing away from the tongue, where ⁇ 3 assumes a value different from ⁇ 1 and different from 0.
- ⁇ 2 is again off-center between ⁇ 1 and ⁇ 3 , whereby the desired effects in terms of wear reduction and comfort improvement are achieved.
- ⁇ A denotes the curvature coefficients at the start of the curve
- ⁇ E the curvature coefficients at the end of the curve
- the hatched line determines the area which, due to the practical feasibility, is more likely to be implementable.
- the full line determines the optimal solution area.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Toys (AREA)
- Sewing Machines And Sewing (AREA)
- Push-Button Switches (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Catching Or Destruction (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Navigation (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Image Analysis (AREA)
Description
αA = 0,05
αE = 0
ν(αmax) = 0,6 ist.
αA = 0,1
αE = 0,65
ν(αmax) = 0,5 bis 0,7 ist.
αA = 0,5
αE = 0
ν(αmax) = 0,35 ist.
αA1 = αA2 = 0,05
αE1 = αE2 = 0
ν(αmax) = 0,6
und die Länge des Verbindungsabschnittes = 5 % des Kurvenzuges Lges ist.
Claims (11)
- Kurvenzug einer Weiche mit Weichenzungen, einem Stammgleis (1) und einem Zweiggleis (2), wobei der Kurvenzug vom Kurvenzuganfang bis zum Kurvenzugende aus mehreren Abschnitten unterschiedlicher Krümmung 1 / R besteht, wobei R den Krümmungsradius bedeutet, dadurch gekennzeichnet, daß der Krümmungskoeffizient α = 1/R / 1/Rmin am Kurvenzuganfang (αA) und am Kurvenzugende (αE) ≥ 0 gewählt ist und daß die Stelle oder ein Bereich, in welchem α = 1 in einem relativen Abstand ν = L/Lges ≠ 0,5 vom Kurvenzuganfang liegt, worin L der Abstand vom Kurvenzuganfang und Lges die Länge des Kurvenzuges bezeichnet.
- Kurvenzug nach Anspruch 1, dadurch gekennzeichnet, daß für eine beidseitig befahrene Weiche αA und αE zwischen 0 und 0,5 und ν für αmax zwischen 0,45 und 0,8 und ungleich 0,5 gewählt ist.
- Kurvenzug nach Anspruch 1, dadurch gekennzeichnet, daß für eine spitz befahrene Weiche αA zwischen 0 und 0,5, αE zwischen 0,5 und 1 und ν für αmax zwischen 0,4 und 1 und ungleich 0,5 gewählt ist.
- Kurvenzug nach Anspruch 1, dadurch gekennzeichnet, daß für eine stumpf befahrene Weiche αA zwischen 0,3 und 0,7, αE zwischen 0 und 0,5 und ν für αmax zwischen 0,3 und < 0,5 gewählt ist.
- Kurvenzug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwischen Kurvenzuganfang und Kurvenzugende eine und nur eine Stelle maximaler Krümmung bzw. mit minimalem Radius mit ν ≠ 0,5 vorgesehen ist.
- Kurvenzug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwischen Kurvenzuganfang und Kurvenzugende ein Abschnitt konstanter maximaler Krümmung angeordnet ist, wobei der Radius ein Minimum darstellt und dessen Mitte außerhalb der Mitte zwischen Kurvenzuganfang und Kurvenzugende angeordnet ist.
- Kurvenzug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die von der Kreisbogenform verschiedenen Abschnitte von Klothoiden (4, 6) und/oder Cosinoiden gebildet sind.
- Kurvenzug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß bei einer spitz befahrenen Weiche die Stelle mit maximaler Krümmung näher zum Kurvenzugende angeordnet ist.
- Kurvenzug nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß bei Scheitelklothoiden (7, 8) oder Cosinoiden, insbesondere bei Stumpfbefahrung die Stelle maximaler Krümmung näher dem Kurvenzuganfang angeordnet ist.
- Gleisverbindung unter Verwendung von Weichen nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Kurvenzugenden mit einem αE zwischen 0 und 0,5 in einen geradlinigen Verbindungsabschnitt (3) übergehen.
- Gleisverbindung nach Anspruch 10, dadurch gekennzeichnet, daß der geradlinige Abschnitt (3) eine Länge von 5 bis 30 % der Gesamtlänge Lges eines Kurvenzuges aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT97955078T ATE233347T1 (de) | 1996-12-23 | 1997-12-12 | Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0225496A AT404743B (de) | 1996-12-23 | 1996-12-23 | Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges |
AT225496 | 1996-12-23 | ||
PCT/AT1997/000276 WO1998028492A1 (de) | 1996-12-23 | 1997-12-12 | Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0956390A1 EP0956390A1 (de) | 1999-11-17 |
EP0956390B1 true EP0956390B1 (de) | 2003-02-26 |
Family
ID=3530915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97955078A Expired - Lifetime EP0956390B1 (de) | 1996-12-23 | 1997-12-12 | Kurvenzug einer weiche sowie gleisverbindung unter verwendung eines derartigen kurvenzuges |
Country Status (15)
Country | Link |
---|---|
US (1) | US6371418B1 (de) |
EP (1) | EP0956390B1 (de) |
KR (1) | KR20000069684A (de) |
CN (1) | CN1114733C (de) |
AT (1) | AT404743B (de) |
AU (1) | AU719664B2 (de) |
CA (1) | CA2275768A1 (de) |
DE (1) | DE59709416D1 (de) |
ES (1) | ES2192280T3 (de) |
HU (1) | HUP0001072A3 (de) |
NO (1) | NO993100L (de) |
PL (1) | PL334563A1 (de) |
PT (1) | PT956390E (de) |
WO (1) | WO1998028492A1 (de) |
ZA (1) | ZA9711510B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009012104U1 (de) | 2009-09-04 | 2009-11-12 | Kuss, Joachim, Dipl.-Wirtsch.-Ing. | Windkraftanlage mit radial verstellbaren Rotorblättern |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6751547B2 (en) * | 2001-11-26 | 2004-06-15 | Hrl Laboratories, Llc | Method and apparatus for estimation of forward path geometry of a vehicle based on a two-clothoid road model |
US7729819B2 (en) * | 2004-05-08 | 2010-06-01 | Konkan Railway Corporation Ltd. | Track identification system |
CH712173A2 (de) * | 2016-02-22 | 2017-08-31 | Swiss Transp Res Inst Ag | Wechselweiche sowie Schienennetz mit mindestens einer solchen Wechselweiche. |
WO2019021950A1 (ja) * | 2017-07-26 | 2019-01-31 | 三菱電機株式会社 | 搬送路切替装置及びエレベータ装置 |
CN107740312B (zh) * | 2017-09-28 | 2019-05-07 | 上海海事大学 | 基于回旋曲线的有轨运行起重运输机械转弯轨道设计方法 |
CN110373957A (zh) * | 2019-07-30 | 2019-10-25 | 中国铁建重工集团股份有限公司道岔分公司 | 组合道岔结构 |
CN114705148B (zh) * | 2022-04-03 | 2023-10-24 | 国交空间信息技术(北京)有限公司 | 基于二次筛选的道路弯曲点检测方法和装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2051882C2 (de) * | 1970-10-22 | 1975-03-06 | Elektro-Thermit Gmbh, 1000 Berlin | Zungenweiche mit zwei Zungenpaaren aus Gleisabschnitten des Stamm- und des Zweiggleises |
HU197051B (en) * | 1986-12-12 | 1989-02-28 | Magyar Allamvasutak Vezerigazg | Railway meeting station |
US4948073A (en) * | 1988-10-24 | 1990-08-14 | Kadee Metal Products, Co. | Turnout with closing frog |
IT1242226B (it) * | 1990-10-10 | 1994-03-03 | Sasib Spa | Dispositivo di manovra per deviatoi ferroviari, in particolare per linee ad alta velocita' |
US5375797A (en) * | 1993-09-17 | 1994-12-27 | Willow; Robert E. | Compound geometry rail switch |
DE4343395A1 (de) * | 1993-12-18 | 1995-06-22 | Magnetbahn Gmbh | Weiche für Fahrwege von spurgeführten Fahrzeugen mit Linearmotorantrieb |
DE4417069A1 (de) * | 1994-05-16 | 1995-11-23 | Butzbacher Weichenbau Gmbh | Kurvenzug |
-
1996
- 1996-12-23 AT AT0225496A patent/AT404743B/de not_active IP Right Cessation
-
1997
- 1997-12-12 PT PT97955078T patent/PT956390E/pt unknown
- 1997-12-12 KR KR1019997005733A patent/KR20000069684A/ko not_active Application Discontinuation
- 1997-12-12 CN CN97181844A patent/CN1114733C/zh not_active Expired - Fee Related
- 1997-12-12 DE DE59709416T patent/DE59709416D1/de not_active Expired - Fee Related
- 1997-12-12 WO PCT/AT1997/000276 patent/WO1998028492A1/de active IP Right Grant
- 1997-12-12 PL PL97334563A patent/PL334563A1/xx unknown
- 1997-12-12 AU AU78743/98A patent/AU719664B2/en not_active Ceased
- 1997-12-12 EP EP97955078A patent/EP0956390B1/de not_active Expired - Lifetime
- 1997-12-12 HU HU0001072A patent/HUP0001072A3/hu unknown
- 1997-12-12 CA CA002275768A patent/CA2275768A1/en not_active Abandoned
- 1997-12-12 US US09/331,452 patent/US6371418B1/en not_active Expired - Fee Related
- 1997-12-12 ES ES97955078T patent/ES2192280T3/es not_active Expired - Lifetime
- 1997-12-22 ZA ZA9711510A patent/ZA9711510B/xx unknown
-
1999
- 1999-06-22 NO NO993100A patent/NO993100L/no not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009012104U1 (de) | 2009-09-04 | 2009-11-12 | Kuss, Joachim, Dipl.-Wirtsch.-Ing. | Windkraftanlage mit radial verstellbaren Rotorblättern |
Also Published As
Publication number | Publication date |
---|---|
NO993100L (no) | 1999-08-20 |
AU719664B2 (en) | 2000-05-11 |
CA2275768A1 (en) | 1998-07-02 |
HUP0001072A2 (hu) | 2000-08-28 |
NO993100D0 (no) | 1999-06-22 |
WO1998028492A1 (de) | 1998-07-02 |
PL334563A1 (en) | 2000-03-13 |
CN1246168A (zh) | 2000-03-01 |
KR20000069684A (ko) | 2000-11-25 |
ZA9711510B (en) | 1998-06-25 |
CN1114733C (zh) | 2003-07-16 |
EP0956390A1 (de) | 1999-11-17 |
HUP0001072A3 (en) | 2002-01-28 |
ES2192280T3 (es) | 2003-10-01 |
PT956390E (pt) | 2003-06-30 |
ATA225496A (de) | 1998-06-15 |
US6371418B1 (en) | 2002-04-16 |
AU7874398A (en) | 1998-07-17 |
AT404743B (de) | 1999-02-25 |
DE59709416D1 (de) | 2003-04-03 |
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