CN101944139B - Method and system for computing meeting distance between overweight truck and adjacent-line passenger train - Google Patents
Method and system for computing meeting distance between overweight truck and adjacent-line passenger train Download PDFInfo
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Abstract
The invention discloses method and system for computing meeting distance between an overweight truck and an adjacent-line passenger train. The method comprises the steps of: judging whether the overweight truck and the adjacent-line passenger train are located on a linear path or a curved path, if on a linear path, executing a linear computation step and determining the meeting distance between the overweight t truck and the adjacent-line passenger train on the linear path, or else, executing a curved computation step and determining the meeting distance between the overweight t truck and the adjacent-line passenger train on the curved path. The novel method for computing the needed running time of the truck and the meeting distance between the overweight truck and the adjacent-line passenger train on the linear/curved path of the invention provides theoretical basis for customizing the meeting condition of the overweight truck and the train. As a result, the meeting technical condition of the overweight truck and the train can be customized according to the maximum transverse offsets of the train and the overweight truck at different heights in the running, the safe railway transportation is guaranteed, and the railway transportation capability and the limit resource are fully utilized.
Description
Technical Field
The invention relates to the field of railway transportation, in particular to a method and a system for calculating a meeting distance between an overrun truck and an adjacent passenger train.
Background
The railway over-limit goods mean goods which are large in overall dimension and need large space in transportation. The share of the transportation volume of the goods in the total transportation volume of the railway goods is not large, but the goods are important equipment for national modernization construction, so that the transfinite goods transportation plays an important role in the development of national economy.
With the rapid development of national economy and the continuous expansion of foreign trade in China, the transportation demand of over-limit goods on railways is increasing day by day, and the over-limit goods transportation has a closer relationship with national economy and national defense construction, so that the over-limit goods can be transported safely, rapidly, economically and conveniently, and the over-limit goods transportation method is still an important task for railway transportation. Since 1997, China's railways have been continuously accelerated for five times in large area, the running speed of passenger trains has been historically crossed, the fast line extension mileage reaches 1.65 kilometers, and the line extension mileage of the passenger trains reaching 160km/h and above reaches 7700 km. The Ministry of railways plans to carry out the sixth speed increase in the conditional trunk lines of Jingha, Jinghu, Jingguang, Longhai, Lanxin, Jiaji, Wujiu, Zhejiang and the like in 2006, the highest running speed of the speed-increased passenger car reaches 200km/h, and after the sixth large-area speed increase of the national railways, the line extension mileage of which the running speed is allowed to reach more than 120km/h reaches 2.2 kilometers. In order to improve the railway transportation capacity, the speed of a goods train on the speed-up line is matched with that of a passenger train, and the speed of the goods train is improved to 120km/h from less than 80km/h at present. This puts higher demands on the transportation of over-limited goods on railways.
The shape of the over-limit goods is huge and heavy, the space required in transportation is large, and the vehicle provided with the over-limit goods is often required to limit the running speed or even stop and then start to slowly pass when passing through buildings or equipment along the line; when the train meets with an adjacent train on a multi-line, the speed is limited, and even the meeting is forbidden. Therefore, the transfinite cargo transportation has more capacity of occupying lines and has great interference on normal operation order. Particularly, the higher the running speed of other trains is, the lower the running speed of the train hung with the overrun truck is, and the more the overrun cargo transportation occupies the line capacity. In order to reduce the interference of the transfinite goods transportation to the normal operation order as much as possible, adapt to the requirement of large-area speed increase of a passenger-cargo train, economically and reasonably utilize the railway clearance of China, and further improve the transfinite goods transportation organization level of the railway of China, it becomes an urgent necessity.
As for the current research results, the meeting conditions of over-limit trucks in China begin to be found in the temporary rules for transporting broad goods published by the Ministry of railways in 1952 by the iron-vehicle technology (52) No. thirty-fifth directive, which are made by referring to relevant foreign regulations and combining the actual conditions of China's railways at that time. Due to the lack of practical experience of China, the rule has many imperfections. For more than 50 years, the railway line standard of China is improved again and again, the performance of the freight car is improved continuously, the transportation of the over-limit goods is also developed greatly, the rule of transportation of the over-limit goods of railways (the rule of transportation of the over-limit over-weight goods of railways, hereinafter referred to as the over-limit rule) is also modified for many times, but due to a plurality of reasons, the basic theory and technical conditions of the over-limit goods transportation are still lack of deep research of the system, so that the meeting conditions of the over-limit freight car of railways in the over-limit rule are basically unchanged all the time, and the over-limit freight car is seriously separated from the actual railway transportation of China at present.
At present, the speed of railways in China is continuously increased, the speed of trains is greatly increased, the highest speed of passenger trains is increased to 200km/h, the highest running speed of freight trains is increased to 120km/h, the meeting technical conditions of over-limit freight trains of railways under the conditions of new technical equipment and transportation organizations after the speed of trains is increased are greatly changed, and certain potential safety hazards exist if the meeting technical conditions of the over-limit freight trains and the passenger trains are not timely adjusted according to the change of the running conditions of the trains.
Disclosure of Invention
The invention aims to provide a method and a system for calculating the meeting distance between an overrun truck and an adjacent passenger train. Based on the invention, the space required by the operation of the adjacent passenger train and the distance between the overrun truck and the adjacent passenger train on the linear line and the curved line can be determined theoretically, and the determined distance is used as the basis for researching the meeting technical conditions of the overrun truck and the adjacent passenger train.
In a first aspect, the invention discloses a method for calculating the meeting distance between an overrun truck and an adjacent passenger train, which comprises the following steps: judging whether the overrun truck and the adjacent line passenger car are positioned on a linear line or a curved line; if the line is positioned on the straight line, executing a straight line calculation step, and if the line is positioned on the curve line, executing a curve line calculation step; calculating a linear line, namely determining the meeting distance between an overrun truck and an adjacent line passenger car on the linear line according to the distance between the center lines of two adjacent lines in a linear interval, the distance between the overrun cargo calculation point and the vertical plane where the center lines of the lines are located, and the half width of the limit of the rolling stock; and a curve line calculation step, namely determining the meeting distance between the overrun truck and the adjacent line passenger car on the curve line according to the distance between the center lines of two adjacent lines in the curve interval after subtracting the broadening value caused by the fact that the outer rail of the outer line is larger than the outer rail of the inner line, the distance between the calculation point of the overrun truck and the vertical plane where the center line of the line is located, the half width of the limit of the locomotive, the radius of the curve line and the distance between the calculation point of the overrun cargo and the vertical plane where the transverse center line of the vehicle is located.
In the above calculation method, preferably, in the step of calculating the straight line route, if the overrun cargo calculation point is located between the center pins of the two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula:
d1＝Sstraight line of adjacency－(BMachine for working+ B + 167), in which d1The straight line meeting distance is the distance between two bogie center pins when the overrun cargo calculation point is positioned between the two bogie center pins of the vehicle, and the unit is mm; sAdjacent to Straight barThe distance between the central lines of two adjacent lines in the linear region is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingIs the half width of the limit of the rolling stock in mm.
In the above calculation method, preferably, in the straight line route calculation step, if the overrun cargo calculation point is located outside the center pin of the two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein d is2For calculating the point when the overrun goods is located at two turning directions of the vehicleThe distance between the vehicles meeting on the straight line when the center pin of the frame is out is in mm; sStraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm.
In the above calculation method, preferably, in the curve route calculation step, if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein: d3The distance between two trucks of the vehicle is the curve line meeting distance when the overrun cargo calculation point is positioned between the center pins of the two trucks of the vehicle, and the unit is mm; sAdjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm; b is the distance from the overrun cargo calculation point to the vertical plane where the line center line is located; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm; r is the radius of the curve, and the unit is mm; e.g. of the typeMusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
In the above calculation method, preferably, in the step of calculating the curved route, if the overrun cargo calculation point is located outside the center pin of the two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein d is4When the position of the overrun cargo calculation point is positioned in the centers of two bogies of the vehicleThe distance between the vehicles of the curve line when the outside of the pin is in mm; sAdjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm; r is the radius of the curve, and the unit is mm; e.g. of the typeMusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
On the other hand, the invention also provides a system for calculating the meeting distance between the over-limit truck and the adjacent passenger train, which comprises the following steps: the judging module is used for judging whether the overrun truck and the adjacent line passenger car are positioned on a linear line or a curved line; if the line is positioned on the straight line, the straight line calculation module is operated, and if the line is positioned on the curve line, the curve line calculation module is operated; the linear line calculation module is used for determining the meeting distance between an overrun truck and an adjacent line passenger car on the linear line according to the distance between the center lines of two adjacent lines in the linear interval, the distance between the overrun cargo calculation point and the vertical plane where the center lines of the lines are located, and the half-width of the limit of the rolling stock; and the curve line calculation module is used for determining the meeting distance between the overrun truck and the adjacent line passenger car on the curve line according to the distance between the two adjacent line central lines of the curve interval, the distance between the overrun truck calculation point and the vertical plane where the line central line is located, the half width of the limit of the locomotive, the radius of the curve line and the distance between the overrun cargo calculation point and the vertical plane where the vehicle transverse central line is located after subtracting the broadening value caused by the fact that the outer rail of the outer line is larger than the outer rail of the inner line.
In the above calculation system, preferably, in the linear path calculation module, if the overrun cargo calculation point is located between the center pins of the two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula：d1＝SStraight line of adjacency－(BMachine for working+ B + 167); wherein d is1The straight line meeting distance is the distance between two bogie center pins when the overrun cargo calculation point is positioned between the two bogie center pins of the vehicle, and the unit is mm; sStraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingIs the half width of the limit of the rolling stock in mm.
In the above calculation system, preferably, in the linear path calculation module, if the overrun cargo calculation point is located outside a central pin of two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein d is2The straight line crossing distance is the distance in mm when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle; sStraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm.
In the above calculation method, preferably, in the curve line calculation module, if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein: d3The distance between two trucks of the vehicle is the curve line meeting distance when the overrun cargo calculation point is positioned between the center pins of the two trucks of the vehicle, and the unit is mm; sAdjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm; r is the radius of the curve, and the unit is mm; e.g. of the typeMusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
In the above calculation system, preferably, in the curved line calculation module, if the overrun cargo calculation point is located outside a central pin of two bogies of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein d is4The distance between two vehicles on a curve line when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle is represented by mm; sAdjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm; b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm; b isMachine for workingThe limit half width of the locomotive is the unit of mm; x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm; l is the pin pitch of the over-limit truck, and the unit is mm; r is the radius of the curve, and the unit is mm; e.g. of the typeMusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
Compared with the prior art, the invention provides a novel method for calculating the space required by the running of the passenger car and the distance between the overrun truck and the adjacent passenger car on the linear line and the curved line, and provides a theoretical basis for the formulation of meeting conditions of the overrun truck and the passenger car. Based on the method, meeting technical conditions of the over-limit truck and the passenger car can be worked out according to the maximum transverse vibration offset of the passenger car and the over-limit truck at different heights in the running process, railway transportation safety is guaranteed, and railway transportation capacity and limit resources are fully utilized.
Drawings
FIG. 1 is a flowchart illustrating steps of a method for calculating a meeting distance between an overrun truck and an adjacent passenger train according to an embodiment of the present invention;
FIG. 2 is a block diagram of a computing system for the meeting distance between an overrun truck and an adjacent passenger train according to an embodiment of the present invention;
FIG. 3 is a schematic view of two bogie center pins of an overrun truck simultaneously offsetting one side of a straight line center line;
FIG. 4 is a schematic view of the center pins of two bogies of an overrun truck respectively offsetting to two sides of the center line of a straight line;
FIG. 5 is a schematic view of the simultaneous deflection of two truck kingpins of an overrun truck to the inner side of the centerline of a curved line;
FIG. 6 is a schematic diagram of the center pins of two bogies of an overrun truck respectively offsetting to two sides of the center line of a curved line.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
On one hand, the embodiment of the invention provides a method for calculating the meeting distance between an overrun truck and an adjacent passenger train, which comprises the following steps with reference to fig. 1:
a judgment step S11, judging whether the overrun truck and the adjacent bus are located on a straight line or a curved line; if the line is positioned on the straight line, executing a straight line calculation step, and if the line is positioned on the curve line, executing a curve line calculation step; a straight line calculation step S12, determining the meeting distance between the overrun truck and the adjacent line passenger car on the straight line according to the distance between the central lines of two adjacent lines in the straight line interval, the distance between the overrun cargo calculation point and the vertical plane where the central line of the line is located, and the half width of the occupied space of the passenger train; and a curve route calculation step S13, wherein the meeting distance between the overrun truck and the adjacent line passenger car on the curve route is determined according to the centerline distance between two adjacent lines in the curve interval after subtracting the broadening value caused by the fact that the outer rail of the outer route is higher than the outer rail of the inner route, the distance between the overrun truck calculation point and the vertical plane where the line centerline is located, the half width of the occupied space of the passenger train, the radius of the curve route, and the distance between the overrun cargo calculation point and the vertical plane where the vehicle transverse centerline is located.
On the other hand, the embodiment of the present invention further provides a system for calculating a meeting distance between an overrun truck and an adjacent passenger train, with reference to fig. 2, including: a judging module 21, a straight line calculating module 22 and a curve line calculating module 23. Wherein:
the judging module 21 is used for judging whether the overrun truck and the adjacent line passenger car are located on a straight line or a curved line; if the line is positioned on the straight line, the straight line calculation module is operated, and if the line is positioned on the curve line, the curve line calculation module is operated; the linear line calculation module 22 is used for determining the meeting distance between the overrun truck and the adjacent line passenger car on the linear line according to the distance between the central lines of two adjacent lines in the linear interval, the distance between the overrun cargo calculation point and the vertical plane where the central line of the line is located, and the half width of the occupied space of the passenger train; the curve line calculation module 23 is used for determining the meeting distance between the overrun truck and the adjacent line passenger car on the curve line according to the distance between the two adjacent line central lines in the curve interval after subtracting the broadening value caused by the fact that the outer rail of the outer line is larger than the outer rail of the inner line, the distance between the overrun truck calculation point and the vertical plane where the line central line is located, the half width of the occupied space of the passenger train, the radius of the curve line and the distance between the overrun truck calculation point and the vertical plane where the vehicle transverse central line is located.
The respective steps involved in the above-described method will be described in detail below. It should be noted that the system embodiment and the method embodiment have the same principle, and the related elements may be referred to each other, and the description will not be repeated below.
Space required by passenger car operation
The space required by the running of the passenger car refers to a limit outline formed by the space position of the passenger car on the line.
(1) Space required by passenger car running on straight line
According to the vibration offset simulation calculation of the existing passenger car, the transverse offset at any position of the transverse offset of the passenger car does not exceed 85 mm. Therefore, when the space required by the running of the passenger car is determined, the value is taken according to the maximum transverse offset of the car body and is 85 mm. Therefore, the half width of the space required for the passenger car to operate on the linear line is as follows:
in the formula BMachine for workingIs the half width of the limit of the rolling stock in mm.
(2) Space required by passenger car running on curve line
The passenger train moves on the curve line, and the half width of the inner side of the required space is as follows:
where R is the radius of the curve, m.
The passenger train moves on the curve line, and the half width of the outer side of the required space is as follows:
(3)
distance between over-limit truck and adjacent line passenger car
The distance between the over-limit truck running on the multi-line or parallel single-line and the passenger train on the adjacent line refers to the distance between the space occupied by the over-limit truck at the worst stop position on the line and the space of the adjacent line passenger train (the adjacent line passenger train is considered according to the calculation vehicle in the national standard building limit, namely the length of the train body is 26m, the distance between the train pins is 18m, and the outline size is the outline size of the locomotive vehicle limit), and can be called the train meeting distance, and d is usedWill be provided withAnd (4) showing. The invention considers that when the meeting condition of the over-limit cargo train and the adjacent passenger train is determined, the passenger train can be considered according to the calculation vehicles in the national standard building limit, namely the length of a train body is 26m, the distance between vehicle pins is 18m, and the outline dimension is the outline dimension of the limit of the locomotive vehicle.
(1) Method for calculating distance between overrun truck and adjacent line passenger car on linear line
1) The overrun cargo calculation point is located between two bogie center pins of the vehicle
When the overrun cargo calculation point is located between the two bogie center pins of the vehicle and the overrun truck and the passenger car meet on two adjacent straight lines, the most unfavorable working condition is that the two bogie center pins of the overrun truck simultaneously deviate towards the same side of the line center line (the side close to the adjacent line) to reach the maximum value, as shown in fig. 3.
The meeting distance between the over-limit truck and the adjacent line passenger car is as follows:
in the formula SStraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm;
Sstraight inner quietIs a straight line, and the unit is mm, the space occupied by the overrun goods when the calculation point is positioned in the inner sides of two bogies of the vehicle;
and B is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm.
2) The overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle
When the overrun cargo calculation point is located outside the center pins of the two bogies of the vehicle, and the overrun truck and the passenger car meet on two adjacent straight lines, the worst working condition is that the center pins of the two bogies of the overrun truck deviate towards the two sides of the center line of the line to reach the maximum value, as shown in fig. 4.
The meeting distance between the over-limit truck and the adjacent line passenger car is as follows:
in the formula SStraight outer quiet-on the straight line, calculating the space occupied by the overrun cargo when the point is located outside the two bogies of the vehicle, in mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm.
(2) Method for calculating distance between overrun truck and adjacent line passenger car on curve line
Because the adjacent line passenger car is considered by the calculation vehicle in the national standard building limit, namely the length of the car body is 26m, and the distance between the car pins is 18 m. On the curve, the internal deviation in the middle of the passenger car is thusThe external deviation of the end of the passenger car is
1) The overrun cargo calculation point is located between two bogie center pins of the vehicle
When the overrun goods calculation point is located between two bogie center pins of the vehicle, and the overrun truck and the passenger car meet on two adjacent curve lines, the worst working condition of the distance between the two vehicles is as follows: the overrun truck is positioned on an outer line, and the center pins of the two bogies simultaneously deviate towards the inner side of the center line of the line to reach the maximum value, as shown in fig. 5, the passenger car runs on an inner line, and the end part of the passenger car and the overrun cargo verification section are positioned on the same transverse vertical plane.
The meeting distance between the overrun truck and the adjacent line passenger workshop is as follows:
in the formula SAdjacent curveThe distance between the central lines of two adjacent lines in the curve interval after subtracting the broadening value caused by the fact that the outer rail of the outer line is larger than the outer rail of the inner line is ultrahigh is in mm;
Squneijing (Quneijing)On the curve, the space occupied by the overrun goods when the point is located inside the two bogies of the vehicle is calculated, and the unit is mm;
emusical compositionThe center of the center plate of the truck deviates from the maximum value of the center line of the curve line and is determined according to the actual curve radius; when R is more than or equal to 350m, e is 82 mm; when R is more than 350m and more than or equal to 300m, the e curve is 85 mm; when R is less than 300m, the e curve is 90 mm.
2) The overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle
When the overrun goods calculation point is located outside the center pin of the two bogies of the vehicle, and the overrun truck and the passenger car meet on two adjacent curve lines, the worst working condition of the distance between the two vehicles is as follows: the overrun truck is positioned on an inner line, and the center pins of the two bogies deviate towards two sides of the center line of the line to reach the maximum value, as shown in fig. 6, the passenger car is positioned on an outer line, and the middle part of the passenger car and the overrun cargo verification section are positioned on the same transverse vertical plane.
The meeting distance between the overrun truck and the adjacent line passenger workshop is as follows:
in the formula SQuzhongjing liquorIs the space occupied by the overrun goods when the point is located outside the two bogies of the vehicle on the curve, and the unit is mm.
In fig. 3 to 6, L denotes a vehicle length, L denotes a vehicle pitch, and M, N denotes a vehicle center pin of each of the two bogies.
The method and the system for calculating the meeting distance between the over-limit truck and the adjacent passenger train are introduced in detail, and specific embodiments are applied to explain the principle and the implementation mode of the method, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (2)
1. A method for calculating the meeting distance between an overrun truck and an adjacent passenger train is characterized by comprising the following steps:
judging whether the overrun truck and the adjacent line passenger car are positioned on a linear line or a curved line; if the line is positioned on the straight line, executing a straight line calculation step, and if the line is positioned on the curve line, executing a curve line calculation step;
calculating a linear line, namely determining the meeting distance between an overrun truck and an adjacent line passenger car on the linear line according to the distance between the center lines of two adjacent lines in a linear interval, the distance between an overrun cargo calculation point and a vertical plane where the center lines of the lines are located and the half-width of a limit of a rolling stock, and specifically comprising the following steps of:
1) if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
d1＝Sstraight line of adjacency－(BMachine for working＋B＋167)
Wherein,
d1the straight line meeting distance is the distance between two bogie center pins when the overrun cargo calculation point is positioned between the two bogie center pins of the vehicle, and the unit is mm;
Sstraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
2) if the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle, the overrun cargo calculation point is determined
The meeting distance is determined according to the following formula:
wherein,
d2the straight line crossing distance is the distance in mm when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle;
Sstraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
the method comprises a curve line calculation step, wherein the meeting distance between an overrun truck and an adjacent line passenger car on the curve line is determined according to the distance between the center lines of two adjacent lines in a curve interval after subtracting an extension value caused by the fact that the outer rail of an outer line is larger than the outer rail of an inner line, the distance between the calculation point of the overrun truck and the vertical plane where the center line of the line is located, the half width of the limit of the locomotive, the radius of the curve line and the distance between the calculation point of the overrun goods and the vertical plane where the transverse center line of the vehicle is located, and the method specifically:
1) if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein:
d3the distance between two trucks of the vehicle is the curve line meeting distance when the overrun cargo calculation point is positioned between the center pins of the two trucks of the vehicle, and the unit is mm;
Sadjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm;
b is the distance from the overrun cargo calculation point to the vertical plane where the line center line is located;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
r is the radius of the curve, and the unit is mm;
emusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm；
2) If the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle, the vehicle-meeting distance is determined according to the following formula:
wherein,
d4the distance between two vehicles on a curve line when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle is represented by mm;
Sadjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
r is the radius of the curve, and the unit is mm;
emusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
2. A system for calculating the meeting distance between an overrun truck and an adjacent passenger train is characterized by comprising:
the judging module is used for judging whether the overrun truck and the adjacent line passenger car are positioned on a linear line or a curved line; if the line is positioned on the straight line, the straight line calculation module is operated, and if the line is positioned on the curve line, the curve line calculation module is operated;
the linear line calculation module is used for determining the meeting distance between an overrun truck and an adjacent line passenger car on the linear line according to the distance between the central lines of two adjacent lines in the linear interval, the distance between an overrun cargo calculation point and a vertical plane where the central lines of the lines are located and the half-width of the limit of a locomotive vehicle, and specifically comprises the following steps:
1) if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
d1＝Sstraight line of adjacency－(BMachine for working＋B＋167)
Wherein,
d1the straight line meeting distance is the distance between two bogie center pins when the overrun cargo calculation point is positioned between the two bogie center pins of the vehicle, and the unit is mm;
Sstraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
2) if the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle, the vehicle-meeting distance is determined according to the following formula:
wherein,
d2the straight line crossing distance is the distance in mm when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle;
Sstraight line of adjacencyThe distance between the central lines of two adjacent lines in the linear region is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
the curve line calculation module is used for determining the meeting distance between the overrun truck and the adjacent line passenger car on the curve line according to the distance between the two adjacent line central lines of the curve interval, the distance between the overrun truck calculation point and the vertical plane where the line central line is located, the half width of the limit of the locomotive, the radius of the curve line and the distance between the overrun cargo calculation point and the vertical plane where the vehicle transverse central line is located after subtracting the broadening value caused by the fact that the outer rail of the outer line is larger than the outer rail of the inner line, and specifically comprises the following steps:
1) if the overrun cargo calculation point is located between the two bogie center pins of the vehicle, the vehicle-crossing distance is determined according to the following formula:
wherein:
d3the distance between two trucks of the vehicle is the curve line meeting distance when the overrun cargo calculation point is positioned between the center pins of the two trucks of the vehicle, and the unit is mm;
Sadjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
r is the radius of the curve, and the unit is mm;
emusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm；
2) If the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle, the vehicle-meeting distance is determined according to the following formula:
wherein,
d4the distance between two vehicles on a curve line when the overrun cargo calculation point is positioned outside the center pins of the two bogies of the vehicle is represented by mm;
Sadjacent curveThe distance between the central lines of two adjacent lines in a curve interval after subtracting a broadening value caused by that the outer rail of the outer line is larger than the outer rail of the inner line is in mm;
b is the distance between the overrun goods calculation point and the vertical plane where the line center line is located, and the unit is mm;
Bmachine for workingThe limit half width of the locomotive is the unit of mm;
x is the distance from the overrun cargo calculation point to the vertical plane where the transverse center line of the vehicle is located, and the unit is mm;
l is the pin pitch of the over-limit truck, and the unit is mm;
r is the radius of the curve, and the unit is mm;
emusical compositionThe maximum value of the center plate of the truck deviating from the center line of the curve line is determined according to the actual curve radius, and when R is larger than or equal to 350m, eMusical composition82 mm; when R is more than 350m and more than or equal to 300m, eMusical composition85 mm; when R is less than 300m, eMusical composition＝90mm。
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Non-Patent Citations (4)
| Title |
|---|
| 提速后铁路超限货物运输组织若干问题的研究;王艳玲;《中国优秀硕士学位论文数据库 工程科技II辑》;20070915(第3期);第43-48页 * |
| 李红艳等.超限货物列车与邻线普通货物列车会车条件.《中国铁道科学》.2009,第30卷(第5期),第100-103页. |
| 王艳玲.提速后铁路超限货物运输组织若干问题的研究.《中国优秀硕士学位论文数据库 工程科技II辑》.2007,(第3期),第43-48页. |
| 超限货物列车与邻线普通货物列车会车条件;李红艳等;《中国铁道科学》;20090930;第30卷(第5期);第100-103页 * |
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