Method of assessment the track with the construction of three-dimensional spectral maps
The invention relates to rail transport, and is intended for monitoring and evaluation of the condition of the rails. The measuring device is moved along the rail track and record the shape of the rails. Implement sliding spectral analysis of the recorded image. Determine the intensity of the harmonic components as a function of the moving coordinates of the path and wavelength. Them detect the speed of cars under various loading and path coordinates, for which you may experience resonance. Registration of contours is carried out for both rail lines and sliding spectral analysis produce harmonically conjugate functions by obtaining the spectrum of the complex coordinate pairs of rails and/or pairs of parameters outlines one rails. Technical result - providing a resonant safety rail vehicles due to early diagnosis paths and high-speed routing traffic on the long sections of the route. 4 C.p. f-crystals, 2 Il. The invention relates to the field of rail transport, and is intended for monitoring and evaluation of the condition of the rails.There is a method to set the frame truck car sensors vertical accelerations of the frame and vertical displacements of the books relative to the frame, the signal parameters are calculated first vertical trajectory books, and then vertical irregularities in the track (EN 2134319 C1, E 01 35/06, 10.08.1999; EN 2035534 C1, E 01 35/06, 20.05.1995).The disadvantage of this method is determined by the low precision of the estimate due to significant errors produced by linear measurements.There is also known a method of condition monitoring of railway track, which consists in determining the geographical coordinates of the start point of the car-potenzmittel according to the satellite navigation system and memorizing them together with the a priori value, and the measurement of the movement of the car-potenzmittel loop and asynchronously values of the traversed path, the power factors of the dynamic interaction between rolling stock and rail track, the height of the irregularities on the running surface of the rails, the orientation angles of the car-potenzmittel in a geographic coordinate system and accelerations in the direction of the axes of the associated coordinate system of this car (EN 2114950 C1, E 01 35/00, 10.07.1998).There is a method allows to measure the true geometrical parameters of the track with high accuracy and reliability when driving car potenzmittel speeds of up to 250 CMU is a method of assessing the condition of the track, which move along a rail track measuring device, register the shape of rail lines and determine the defectiveness way of statistical correlational method (Baluch Henrik, Diagnosis superstructure, M., Transport, 1981, S. 146-193).The disadvantage of this method is that it is not possible to determine the resonant dangerous parts of the track.It should be noted that the train crew, as the sprung mass and, therefore, representing a complex mechanical oscillator circuit, the ensemble has its own vibrational frequencies, dependent on both the mechanical characteristics of this crew (i.e., its type, degree of wear of the main mechanical components, etc.,) and from his boot.When driving on uneven road, the spectrum of which in addition to "white" noise may be present harmonic outlines of rail lines, the crew at a certain speed can get into resonance with these harmonics, which, in turn, can lead to such unpleasant phenomena as intense kilaloe and side swinging of the crew, his gallerani, superstep and, in the worst case, smashed.The invention adowanie irregularities longest section of the route (moving spectral analysis for the localization of such harmonic components and their intensities as by location (km, kilometraje) and wavelength (in meters).This objective is achieved in that in the method of estimating the condition of the track, which move along a rail track measuring device and record the shape of the rail lines, perform sliding spectral analysis of the recorded shapes, thus determine the intensity of the harmonic components as a function of the moving coordinates of the path and wavelength and detect the speed of cars under various loading and path coordinates, for which you may experience resonance, and form a three-dimensional spectral map of the investigated area the way.The task is also promoted by the private significant features of the invention.As a measuring device used wagon-potenzmitel, and as the moving coordinates - the coordinate of the moving car potenzmitel.Registration of contours is carried out for both rail lines and sliding spectral analysis produce harmonically conjugate functions by obtaining the spectrum of the complex coordinate pairs of rails and/or pairs of parameters outlines one rails.Spectral map issledovatelnyj from the point of view of resonance security.In Fig.1 presents a General framework for the implementation of the proposed method comprising sequentially connected measuring device (wagon-potenzmitel) 1 spectrum analyzer 2 registered shapes of rail lines, the site of formation of 3-dimensional spectral map of the investigated area the way, the compute node 4 resonant speeds and node speed routing 5.In Fig.2 shows the spectral map section of the route.The proposed method is as follows.Along the track to move the car potenzmittel 1 and record the shape of the rail lines. Next, by using a spectrum analyzer 2 perform sliding spectral analysis of the recorded shape and determine the intensity I of the harmonic components as a function of the moving path coordinates (x) and wavelength ():I = S(x,). In the basis of the analysis algorithm is the fast Fourier transform with a moving argument along the way (along the X-axis).Found the intensity I of harmonic components allow for using a node form a 3 to construct a three-dimensional spectral map of the roughness of the investigated area of the path which, in spermonica, what wavelength and what is its intensity? For example, it was found that the 110-km section of the Moscow-Borodino 51-kilometer have a very distinct harmonic with a wavelength of 6.3 m and amplitude (intensity) 3 mmThis knowledge allows the compute node 4 to calculate such rates for different types of cars (and download them), in which the movement in this area will lead to the occurrence of the resonance phenomenon. Knowledge of the resonance curves wagons (q) makes it possible to calculate the amount of resonance.Thus, the present invention relates primarily to issues of safety, and if the railway workers interested in this question from the point of view of early diagnosis and path planning and resource allocation repair crews and equipment, Prime movers possession of spectral maps of the route will allow using node 5 to perform "rapid transfer" movement, as a local (generation of velocity profiles V(s) on this route, optimal from the point of view of resonance safety, and strategic planning of movement (up to schedule changes).In addition, the motion at the resonant speed, obviously, is harmful from the point of view b is spatial increased dynamic loads on all their designs, including axial bearings, a pair of wheels, head rails, etc. and on the other hand, the law on the action is equal to counteraction, more intense load tests and the path (when driving at resonance), thereby reducing turnaround time and increasing operational costs. And finally, all these phenomena require excessive energy consumption, which, in turn, leads to burnout.Therefore, in addition to safety, the urgency of the present invention concerns suplying, among which are: - reduction of wear of rolling stock; - increase the turnaround time of operation of the railway track; increase energy efficiency; reduction in overall operating costs.We emphasize again that the current amplitude analysis method outlines the limitations and method of the standard deviation (as well as its variant, the moving standard deviation) are respectively too local and too global (statistical) and therefore not giving the necessary information in the above context. Moreover, both methods do not solve the problem of determining the spectrum, and therefore, the availability of harmonicoscillator threads) were considered only stationary spectra of small locally-isolated section of the route length of about one kilometer (generally up to 1 km).In this case, the first processing section 110 km (with a sampling rate of 47 cm - more than 220 thousand times) by the method of continuous sliding spectral analysis. It built the spectral map and 3-dimensional spectral landscape. Also for the first time seasonally (four times) treated area with running a repair with a length of about 250 km (the total amount of processing is about 1000 km) and identified seasonal changes, as well as for repairs.Still in the research consisted of one small area (up to 1 km) with the spectral scale from 512 to 1024 samples (the size of the octave: 29- 210), which is rather time-consuming computational process from the point of view of cost of machine time. Despite this, the first processed longest section of the route (110 km) with the spectral scale from 2048 (the size of the octave: 211and more times that determines the increase in computational complexity by more than 2 orders of magnitude, but, as a consequence, an increased resolution spectral analysis and allows to detect more subtle structural differences in the spectral picture on continuous data array.First held sliding spectral analysis harmonicae etc.Thanks to the original processing technology of random variables (multivariate factor analysis) first constructed a map of the probability distribution of the intensity in the spectral field (X-axis) and the probability distribution of reviews on q-factor of a single damped oscillator (axis).Again, for the first time on the results of sliding spectral analysis of the obtained volumetric spectral relief, including a three-dimensional image in space of the terrain with the possibility of cutting its contour and subsequent plotting of the topographs, the flight of the terrain in the space on the computer (multimedia animation).According to the results of sliding spectral analysis of harmonically conjugate functions obtained colored volumetric spectral maps in three different layers in RGB-space reflected the 3 different sources of harmonic components, then this colored carpet printed on grey relief. Thanks to the obtained volume of the total spectral map can identify not only the presence and the intensity of the harmonics in this place railroad tracks, but you can tell by the color of the degree of contribution in this place or that istb assessment of rail track, which move along a rail track measuring device and record the shape of the rails, characterized in that the implement sliding spectral analysis of the recorded shapes, thus determine the intensity of the harmonic components as a function of the moving coordinates of the path and wavelength and detect the speed of cars under various loading and path coordinates, for which you may experience resonance, and form a three-dimensional spectral map of the investigated part of the way.2. The method according to p. 1, characterized in that a measuring device is used wagon-potenzmitel, and as the moving coordinates - the coordinate of the moving car potenzmitel.3. The method according to p. 1 or 2, characterized in that the registration of contours is carried out for both rail lines and sliding spectral analysis produce harmonically conjugate functions by obtaining the spectrum of the complex coordinate pairs of rails and/or pairs of parameters outlines one rails.4. The method according to any of paragraphs.1-3, characterized in that the spectral map of the investigated area of the path form in color.5. The method according to any of paragraphs.1-4, characterized in that the security.
FIELD: railway transport; measuring facilities.
SUBSTANCE: invention relates to special purpose devices for measuring separate geometric parameters of reinforced concrete ties, i.e. propelling and canting of rail flats on reinforced concrete ties. Proposed device contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3, third support screw 7 and fourth support screw 8 are installed on left-hand support 4, right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, sensor 11 is secured on first support screw 5. Housing 1 carries also right-hand orientation handle 13 with pushbutton 15 and left-hand orientation handle 14. Base 16 is fastened in central part of housing 1, controller 17 and supply compartment 18 being secured on base 16. Device for measuring rail flat canting contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3. And third support screw 7 and fourth support screw 8 are installed on left0hand support 4. Right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, first sensor 11 is secured on first support screw 5, and second sensor 19 is installed on fourth support screw 8. Housing 1 carries right-hand orientation handle 13 with pushbutton 15, and left-hand orientation handle 14. Base 16 with fitted-on controller 17 and supply compartment 18 is secured in central part of housing 1. Moreover, support 21 is connected to housing 1 through vertical rods in central part.
EFFECT: improved efficiency of measurements, increased accuracy and provision of operative measurement of parameters under checking.
3 cl, 2 dwg
FIELD: railway transport.
SUBSTANCE: invention relates to method of diagnosing condition of railway and street car tracks. Proposed device contains detectors designed for measuring deviation of gauge and position of track by level of sags, humps and cavities connected with contact members. Device contains also vertical parallel, inner and outer posts, rollers made for interaction with side working inner surfaces of side track, rollers made for interaction with upper working surfaces of rail track, jambs some ends of which are connected with roller races and others, with corresponding posts. One of detectors is made in form of dial indicator, being arranged on one of inner posts and coupled with roller-type contact elements made for interaction with side working inner surfaces of track. Rod of said indicator is in contact with upper end of other inner post. Springs are placed between inner post. Springs are placed between inner posts in upper and lower parts, mounted on upper surface of two pairs of bosses fitted on one axle. Holes are made in inner posts. Axle with bushing is placed in inner posts. Bracket is connected by one end to bushing, and other end of bracket serves for fastening to floor of test car. Second detector is made in form of metric rule secured to inner post, and two pointers secured on upper end faces of outer posts. Two pairs of slots are made on outer posts. Slots are arranged on one axis and they accommodate pins installed for movement. Pins are provided with stops from outer and inner parts of posts.
EFFECT: improved reliability of device, reduced cost, possibility of reading results of measuring directly from detectors.
FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to method of noncontact inspection of profile of ballast base passing square to longitudinal direction of track. Inspection is carried out together with recording of deviation of track in level and in position. Depending on recorded defects as to level (a) and profile of ballast base 13 obtained for said level, amount of crushed stone for lifting track 4 to preset level and uniform ballasting is determined. To find amount of crushed stone required for ballast base 12, recorded profile of ballast base 13 is applied to preset profile of cross section 14.
EFFECT: improved ballasting of track.
3 cl, 4 dwg
FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to method of grading of existing bed of railway in which cables and/or pipes are laid beyond the limits of rails, and to laser measuring device to read bed profile. According to proposed method, operator removes material of bed by sucking through definite steps along bed to form pits or cross trenches at each side of track, and using laser camera, checks profile near pit and position of buried cables or pipes and stores obtained information. Then, using information kept in memory, operator controls device for mechanical digging of material from both sides of track without risk of damage to buried cables or pipes and profile of graded bed. Laser measuring device is mounted on railway motor car with cross guide beam 12 and carriage with laser camera which can be moved along guide beam. Laser camera is pointed with its lens downwards to read distance from ground, being connected with computer to record position of bogie on rails and distance from camera to ground.
EFFECT: provision of safe, quick and cheap method of railway bed grading with use of laser measuring device.
6 cl, 6 dwg
FIELD: railway transport; permanent way testing facilities.
SUBSTANCE: method of pulling contact system cable comes to the following: each rail 6 is read off by means of distance pickup 16 placed over rail and moved continuously in longitudinal direction of track and scanning in plane 20 passing square to longitudinal direction of track. Problem points of measurement 25 on rail defining geometry of switch are recorded as measurement values in polar system of coordinates. Polar coordinates for measurement values are converted into Cartesian coordinates and information is recorded in memory at continuous measurements of distance by means of measuring wheel after which lateral section for switch 1 is calculated basing on recorded measurement values. Actual measurement values are compared in definite points of measurement 25 with preset values of at least two of enumerated parameters kept in memory, namely, width of clearance between counter-rail and running rail, through clearance or state of tongue as to its wear, minimum width between edge of guide rail and side edge of running rail in curve, width of gauge and/or distance between counter-rails or guide surfaces and deviation of obtained values from preset values. In device for noncontact measurement of lateral section or rail-to-rail distance of track, each pickup 16 is arranged in area over corresponding rail 6 being essentially laser scanner 17 for reading problem points of measurement 25 defining geometry of switch which is made for reciprocation at angle of scanning (α).
EFFECT: provision of quick and accurate determination and evaluation of measurands of vital importance for switch.
4 cl, 6 dwg
FIELD: railway transport; track maintenance.
SUBSTANCE: geometry of track is measured by using high-accuracy measuring circuit with two mechanically coupled test trucks forming transport and mechanically coupled test trucks forming transport and mechanical part of measuring system and including covered distance meter and truck tilting level sensors relative to horizon and at least one radiating mark (optical radiation source) rigidly installed on first test truck in direction of movement and providing pressing of flange of wheel to inner head of base rail, and optical electronic receiving-and-analyzing system rigidly secured on second truck. Second truck is double axle, with flanges of corresponding wheelsets pressed to inner surface of head of base rail, thus forming measuring base identifying position of base rail in points of contact of corresponding wheelsets.
EFFECT: improved accuracy of measurement at simplification of process.
4 cl, 5 dwg
FIELD: railway transport; permanent way.
SUBSTANCE: proposed device for checking condition of switch tongue includes movable and fixed members in form of tongue includes movable and fixed members in form of tongue and ties with adjoining and second stock rails secured on ties and it contains one tongue position pickup relative to adjoining stock rail designed for shunting track circuits of automatic block system. Device is furnished with stop shoe secured on fixed member of track and designed for limiting displacement of tongue along adjoining stock rail. Tongue position pickup is made in form of stationary and movable contacts. Used as stationary contact is said stop shoe which is electrically connected with adjoining stock rail and is electrically insulated from second stock rail. Movable contact is electrically connected with second stock rail being electrically insulated from adjoining stock rail and installed for power interaction with tongue and forming electric connection with stationary contact.
EFFECT: improved safety of traffic, enlarged functional capabilities of device.
5 cl, 3 dwg
FIELD: railway transport.
SUBSTANCE: invention can be used for diagnosing condition of rails using combined ultrasonic and magnetic nondestructive testing devices of higher resolving power. Proposed rail track mobile testing device includes vehicle on frame of which flaw detector bogie is mounted with system for pneumatic and manual lifting of bogie I to traveling position. Tracking ski secured on frame of flaw detector bogie is provided with ultrasonic testing converters unit. Mobile device is provides also with pneumatic system for forced pressing of flaw detector bogie to rails made for adjusting force of pressing in vertical axis and with lateral stabilizing device consisting of roller carriage with flexible damping support. Series magnetizing coils of magnetic control device whose inductive sensor is installed after converters unit in rear part of tracing ski in direction of movement of flaw detector bogie, said coils being fitted on axles of wheel-steps of flaw detector bogie and connected to each other. Said magnetizing coils are installed on bearings and are arranged I protective hood secured on frame of flat detector bogie. Housing of converters unit, protective hood and frame of flaw detector bogie are made on nonmagnetic material. Wheels of flaw detector bogie are installed for independent rotation.
EFFECT: increased resolving power at diagnosing condition of rails, increased dynamic stability of device in movement along rails, reduced mass and dimensional characteristics.
2 cl, 1 dwg