29 results about "Maintenance engineering" patented technology

The invention discloses a geometric irregularity state deterioration characterization method for a longitudinally-connected ballastless track on a high-speed railway bridge under a transverse earthquake, and the method comprises the steps: building a refined finite element model of a longitudinally-connected ballastless track-bridge system, and analyzing the damage characteristics and distribution rules of key components of the earthquake-caused track-bridge system; the characteristic of damage state degradation of key components of the earthquake-induced track-bridge system and a mapping mechanism are disclosed; then, based on the second theorem of Castlliano and the superposition principle, a geometric irregularity state deterioration characterization model of the longitudinally-connected ballastless track on the high-speed railway bridge under the action of the transverse earthquake is constructed, the geometric irregularity state of the longitudinally-connected ballastless track on the simply-supported / continuous beam bridge is mapped based on the deterioration characterization model, deformation data of the steel rail under the action of the earthquake are accurately quantified, and the accuracy of the deformation of the steel rail under the action of the transverse earthquake is improved. The method provides a theoretical basis for quickly judging the post-earthquake traffic capacity and maintenance engineering of a track-bridge system, ensures the operation safety of a high-speed railway, provides a theoretical basis for the design of a high-speed railway track-bridge, is beneficial to post-earthquake track repair and train operation recovery, and has a good practical value and a good popularization prospect.

The invention discloses a bridge maintenance dynamic decision-making method and system based on multiple dimensions and maintenance standards, and belongs to the technical field of bridge intelligent maintenance, and the method comprises the steps: collecting static basic data and dynamic basic data of a to-be-maintained bridge, and evaluating and determining key parts / components, key diseases, four-stage maintenance standards and three-dimensional indexes; a maintenance scheme library formed by different maintenance schemes is determined, and a to-be-maintained bridge and a maintenance project demand analysis library of the maintenance project amount are screened and determined; analyzing and generating a cost benefit model; and according to the cost-benefit model, calculating the maintenance cost required by the to-be-maintained bridge corresponding to different maintenance standards in the maintenance project demand analysis library and the maintenance benefit generated by maintenance, determining a maintenance project plan library and making a maintenance plan. The bridge maintenance dynamic decision-making method and system disclosed by the invention are helpful to grasp the development trend of bridge technical conditions, standardize maintenance decision-making behaviors, improve the scientific decision-making level and effectively carry out preventive maintenance.

The invention discloses a mechanical product overhaul life determination method based on preventive maintenance, and relates to the technical field of mechanical product reliability and maintenance engineering, and the method comprises the following steps: S1, constructing a mechanical product disciplinary cross equation; s3, constructing a mechanical product performance degradation model based on preventive maintenance, and estimating unknown parameters by adopting a maximum likelihood estimation method so as to determine a relationship between a performance degradation amount and time; and S4, estimating parameters of the performance degradation model and finally determining the overhaul life of the mechanical product. According to the method, the influence of preventive maintenance on the mechanical product performance is comprehensively considered, the performance fluctuation and degradation process caused by the maintenance activity is described by constructing the segmented performance degradation function, and the relationship between the performance degradation amount and the time is determined by using the maximum likelihood estimation method; and the finally determined overhaul life of the mechanical product is more accurately applied to an actual engineering scene.

The invention relates to the technical field of data processing and engineering project process management, in particular to a full-process intelligent management method and system for bridge and tunnel maintenance engineering. The method comprises the following steps: extracting a disease geometric contour based on bridge and tunnel inner wall three-dimensional point cloud data, and calculating a centroid coordinate, a volume and a surface contour area; constructing a space retrieval sphere by using a target disease centroid, screening an adjacent disease set, and calculating a local aggregation density by combining the volume and the centroid distance; calculating the average depth of the target disease, and deducing the overlapping sharing rate of the working plane; constructing a group topology consumption equivalent through linear analysis; and inputting the extreme gradient lifting model to output an optimal repair material dosage table and a material distribution operation instruction book. According to the method, the disease space distribution and aggregation degree can be accurately evaluated, the construction loss surface overlapping probability and the material sharing potential are scientifically evaluated, the material preparation accuracy is improved, waste and cost are reduced, and the whole-process intelligent management of bridge and tunnel maintenance engineering is realized.

The utility model discloses a banknote digging separation gap detection tool. A banknote digging separation gap detection tool is daily carried by a maintenance engineer, is operated according to instructions during equipment maintenance, is installed at a specific position of a banknote feeding and stripping structure, and can visually indicate the embedding depth between an F wheel and a G wheel. Meanwhile, when the embedding depth of the G wheel and the F wheel is finely adjusted, the tool indicates the position change of the G wheel through amplification, so that a maintenance engineer can more finely determine an adjustment result.

The application belongs to the technical field of nuclear power plant rotating equipment maintenance engineering, and particularly relates to a device for fixing a motor rotor in a circulating seawater pump of a nuclear power plant. The device is tightly attached to a bearing fastening bolt through a locking assembly, so as to reduce the shaking of the fastening bolt and effectively solve the problem of motor vibration caused by the loosening of the bearing fastening bolt, thereby ensuring the normal operation of the seawater circulating pump.

The utility model discloses a special board for power transformation operation and maintenance, and belongs to the technical field of power operation and maintenance engineering. Comprising a touch panel and a recording board rotationally hinged to the touch panel, a front camera and a rear camera are fixedly arranged on the touch panel, a storage card is detachably installed on the side face of the touch panel, and the special board for power transformation operation and maintenance is formed by rotationally hinging the touch panel and the recording board, so that the touch panel displays a power diagram of a power transformation system. Environment information of an operation and maintenance power transformation system can be obtained through photographing, verification work of a fault point physical picture and an electric power diagram is achieved, operation and maintenance personnel are assisted to confirm an operation and maintenance fault point more accurately, the multiple operation and maintenance recording tables installed on the recording board can achieve one-chasing page turning processing according to the installation sequence, the operation and maintenance recording function of a paper table is achieved, and the operation and maintenance efficiency is improved. And in addition, the hand is inserted between the supporting belt and the recording plate for use, so that the phenomenon that the hand slips out of the hand can be effectively avoided.

The utility model discloses a quick reloading device for road maintenance engineering, which comprises a maintenance platform, the upper end face of the maintenance platform is obliquely arranged, the lower end face of the maintenance platform is provided with a plurality of groups of outer frames, the plurality of groups of outer frames are symmetrically arranged in pairs, and the plurality of groups of outer frames are internally connected with sliding blocks in a sliding manner; and the two sets of sliding blocks located on one side are jointly and fixedly connected with a side plate, the outer wall of the side plate is rotationally connected with two sets of cleaning rollers, and a sliding mechanism for driving the sliding blocks to slide is installed in the outer frame. Through the design of the threaded rod and the sliding block, adjustment of the height and the position of the cleaning roller is achieved, when bristles of the cleaning roller are abraded, an operator can drive the sliding block to slide by adjusting the threaded rod, so that the position of the cleaning roller is adjusted up and down, the bristles continue to make full contact with the ground, and the requirement for frequent replacement after the bristles are abraded is avoided; the service life of the bristles is prolonged, and the maintenance cost of equipment is remarkably reduced.

The invention discloses a management method for an IDC operation and maintenance knowledge graph, and relates to the technical field of data center operation and maintenance engineering, and the method comprises the steps: collecting and processing operation and maintenance distribution parameters, operation and maintenance graph construction parameters and operation and maintenance management correlation coefficients of a data center, and obtaining operation and maintenance management features of the data center; constructing a multi-modal operation and maintenance management model by using the features and a corresponding operation and maintenance management method, receiving data center to-be-operated and to-be-managed features to be processed by the data center, and constructing the model to process the data center to-be-operated and to-be-managed features to generate a real-time operation and maintenance management method for operation and maintenance; according to the method, the improvement proportion parameters are set after operation and maintenance of the data center by adopting the feature correction knowledge graph method and the data center, and the operation and maintenance management method is carried out on the graph network model constructed by the operation and maintenance knowledge keywords and the constructed knowledge graph parameters, so that unique data processing of operation and maintenance of the data center is realized, operation and maintenance management is more automatic, and the operation and maintenance efficiency is improved. Operation and maintenance resources are saved, operation and maintenance risks are reduced, and operation and maintenance management rationality is enhanced.

The invention relates to the technical field of bridge demolition and maintenance engineering, and discloses bridge demolition waste treatment equipment and a method thereof.The bridge demolition waste treatment equipment comprises a rack and a magnetic roller, a rotating shaft is fixedly connected to the outer wall of the magnetic roller, a reinforcing strip is fixedly connected to the bottom of the rack, and an adjusting mechanism is arranged on the outer side of the rotating shaft; an adjusting mechanism is arranged on the rack and used for adjusting the intensity of a magnetic field of the magnetic roller, a cleaning mechanism is arranged on the outer side of the rack and used for cleaning scraps remaining on the magnetic roller, an auxiliary mechanism is arranged at the bottom of the rack and used for assisting the device in moving, and the adjusting mechanism comprises a matrix plate. According to the invention, the intensity of the generated magnetic field can be flexibly controlled by adjusting the current to the electromagnetic block, and the magnetic field can drive the phase column to generate displacement so as to change the distance between the magnetic system and the magnetic roller, so that the continuous adjustment of the magnetic field intensity on the surface of the magnetic roller is realized, and a basis is provided for efficiently sorting materials with different magnetisms.

The invention provides a turboshaft engine accessory disassembly and assembly time prediction method based on maintenance process attributes, which belongs to the technical field of maintenance engineering prediction, and comprises the following steps: carrying out maintenance task decomposition in combination with maintenance guidance information and kinematic decomposition of a time measurement method to obtain a maintenance task; obtaining a plurality of maintenance operation units and a plurality of basic maintenance actions in the maintenance operation units; performing six-dimensional maintenance attribute evaluation based on a language evaluation set on each basic maintenance action to obtain a corresponding six-dimensional time correction coefficient set; determining maintenance time of the plurality of basic maintenance actions by using a time measurement method; correcting the maintenance time of each basic maintenance action through the maintenance time correction model and the six-dimensional time correction coefficient set; and the corrected maintenance time of all the basic maintenance actions in all the maintenance operation units is calculated in an accumulated mode, and the turboshaft engine accessory disassembly and assembly time based on the maintenance process attributes is obtained. According to the method, the accuracy and practicability of the disassembly and assembly time estimation of the turboshaft engine accessory can be improved.

The invention discloses a fuselage maintenance task pool generation method and device, equipment, a medium and a program product, and belongs to the technical field of aviation maintenance engineering. The method comprises the following steps: acquiring planned maintenance requirement data of a target fleet, and analyzing the planned maintenance requirement data to obtain an analysis result; determining a fuselage maintenance task based on the analysis result, and obtaining an MRS number, an applicability definition and an interval definition of the fuselage maintenance task; obtaining a target work card number according to the mapping relation table and the MRS number; performing matching according to the applicability definition to obtain a target aircraft, and obtaining an aircraft sampling type and a tail number of the target aircraft; generating a task interval type based on the historical task processing state, the aircraft sampling type and the interval definition; calculating a task expiration date of the body maintenance task according to the task interval type; and constructing a fuselage maintenance task pool. According to the embodiment of the invention, the accuracy and efficiency of calculating the expiration date can be improved, so that the efficiency of generating the fuselage maintenance task pool is improved.

The invention relates to the technical field of railway engineering, and discloses a reinforced steel rail connecting device capable of reducing track irregularity, which comprises a steel rail body, a plurality of fixing screw holes formed in the side wall of the steel rail body, two long clamping plates symmetrically placed in the two side walls of the steel rail body, a plurality of positioning holes formed in the side walls of the long clamping plates, and a reinforcing seat, the reinforcing seats are arranged on the two sides of the long clamping plates and the lower portions of the steel rail bodies, a plurality of transversely-arranged limiting holes and bolts are symmetrically formed in the two sides of the reinforcing seats, the bolts are used for connecting the steel rail bodies, the long clamping plates and the reinforcing seats, the bolts sequentially penetrate through the fixing screw holes, the positioning holes and the limiting holes, then nuts are connected with the bolts, and therefore the two sections of steel rail bodies are connected. The device is suitable for a heavy haul railway or a coal mining subsidence area railway, the bending rigidity of the steel rail connecting position can be improved, the rail irregularity of the steel rail connecting position is reduced, the maintenance work amount of the steel rail connecting position is reduced, vibration generated when a train passes through can be reduced through the stable connector, and the operation safety is improved.

The invention discloses a high-precision robot for treating tunnel water leakage, and belongs to the technical field of tunnel maintenance engineering machinery. The robot comprises a track moving vehicle, an active anti-tipping mechanism, a six-degree-of-freedom mechanical arm, a drilling device, a grouting system, a quick mounting structure and a visual scanning system. The track moving trolley moves on the tunnel track to achieve moving positioning. The active anti-rollover mechanism is used for upwards jacking a tunnel segment through an adjustable supporting leg driven by a worm gear and a worm so as to provide anti-rollover stable support; the visual scanning system performs global scanning and modeling through a first visual scanning unit, and performs accurate positioning of a working point by using a second visual positioning unit; the six-degree-of-freedom mechanical arm can quickly change and mount a drilling device or a grouting head through a quick mounting structure, and precise drilling and quantitative grouting operation are sequentially executed; full-automatic, high-precision, continuous and efficient operation of tunnel leakage water treatment is achieved, and the defects of manual treatment and existing equipment in the aspects of stability, precision and efficiency are effectively overcome.

The utility model discloses a concrete spraying and curing device, and belongs to the technical field of bridge curing equipment manufacturing. The concrete spraying and curing device comprises a water storage bin, a spraying mechanism and a moving trolley, wherein the water storage bin and the spraying mechanism are both fixed on the moving trolley. The device is suitable for concrete bridge maintenance engineering, is especially suitable for occasions with insufficient field power supply and special requirements on spraying distance and height, saves the cost, and improves the spraying efficiency of the concrete maintenance engineering.

The application discloses a fastener for a spaceflight sealing device and belongs to the technical field of spaceflight fastening structures. When a locking piece after sealing glue solidification is disassembled, a special-shaped sink is first inserted, a rotating disc is quickly rotated, the rotating disc drives a friction shaft to rotate, the friction shaft generates heat in the sink hole, the heat is conducted to a stud, the temperature of friction heats the solidified sealing glue, after the sealing glue is melted, the special-shaped through groove on the screw head is rotated through a hexagonal screw cutter, and the whole fastener can be taken out. The fastener can be non-destructively removed in the state of being hit by the sealing glue without relying on other heating tools, the disassembly integrity of the workpiece is guaranteed, damage to the threads of the structural parts is not easy, the whole locking piece structure is compact without gaps, has the physical characteristics of high strength and deformation resistance, the fastener is convenient to disassemble, the part damage rate is reduced, and the part cost is saved for the maintenance engineering in the spaceflight field.

This invention relates to the field of computer technology and discloses a method for optimizing equipment maintenance personnel configuration based on multi-factor dynamic coupling. The method includes acquiring status characteristic information such as equipment age, technical complexity, and average daily utilization time; determining corresponding influence coefficients; calculating the maintenance requirements for a single unit based on baseline maintenance workload; and summarizing the total maintenance requirements for the equipment group. Further, correction factors such as personnel capability equivalent coefficient, cross-site collaboration coefficient, on-duty availability coefficient, and resource balance coefficient are determined. The total maintenance requirements are then corrected item by item in the order of capability conversion, collaboration adjustment, on-duty correction, and resource balance compensation, outputting the required number of maintenance engineers. This invention enables refined and optimized equipment maintenance personnel configuration, improves the accuracy and adaptability of personnel allocation, and reduces operation and maintenance costs.

The utility model discloses a modularized sun gear disengagement device of a walking speed reducer for engineering machinery, relates to the technical field of transmission of engineering machinery, is used for solving the technical problem of tire locking caused by damage of internal parts in traditional maintenance engineering, and can realize quick decoupling and separation of a sun gear assembly when the walking speed reducer breaks down. According to the modularized sun gear disengaging device of the walking speed reducer for the engineering machinery, a spiral sleeve of a spiral sleeve locking module is matched with an end cover through trapezoidal threads, and the threads are fine threads; the anti-loosening system is provided with a clamp spring groove at the end cover, and a check ring for a hole is assembled in the clamp spring groove; the dynamic sealing assembly adopts an O-shaped sealing ring at the end cover and the spiral sleeve, and the O-shaped sealing ring is used for preventing oil leakage of a gear box in the speed reducer.

The invention relates to the technical field of fire-fighting dispatching, in particular to an intelligent security dispatching management system. The server comprises a fire-fighting maintenance task issuing module, an engineer information acquisition module, a task distribution module, a feedback receiving module, a step identification module and a difference evaluation module; wherein the step identification module is used for identifying fire-fighting maintenance steps corresponding to fire-fighting maintenance engineers in engineer maintenance information according to the received engineer maintenance information to form a corresponding fire-fighting maintenance step set; the difference evaluation module is used for performing structured comparison on the fire-fighting maintenance step set and corresponding fire-fighting standard steps in a fire-fighting standard step library according to the fire-fighting maintenance step set corresponding to the fire-fighting maintenance engineer on the basis of the fire-fighting standard step library pre-stored in the database and a preset difference point risk identification evaluation strategy; and identifying the difference points and the risk degree of each difference point, and feeding back the difference points and the risk degree to the maintenance end corresponding to the fire-fighting maintenance engineer.

The invention provides a construction cost pricing system and method, and the system comprises a project management pricing module and a price library module. The project management pricing module is used for managing and maintaining project information of the engineering project, and the project information comprises manufacturing and installing fees; the price library module is used for managing and maintaining price information of a plurality of price libraries, including inputting and updating the price information, the price library module comprises a manufacturing installation cost price library, and the manufacturing installation cost price library is used for providing reference for determining the manufacturing installation cost. According to the invention, through setting the installation cost price library, support is provided for determining the manufacturing installation cost in the engineering project, and the manufacturing installation cost can be updated in real time according to the market condition, so that the determination of the manufacturing installation cost is more in line with the actual pricing demand.

The invention belongs to the technical field of maintenance engineering, and relates to an aircraft structure MSG-3 analysis accidental damage assessment method. The method comprises the following steps: identifying accidental damage influence factors of an aircraft structure according to aircraft operation characteristics, and establishing an accidental damage factor list according to the determined accidental damage influence factors of the aircraft structure; and establishing an evaluation rule of each accidental damage influence factor according to damage forms and occurrence characteristics of different accidental damage factors. Establishing a two-tuple according to aircraft configuration parameter indexes; and establishing an accidental damage factor incidence matrix for evaluating the total accidental damage score of the structure. And determining a structural analysis object, and extracting key parameters according to the mathematical model of the analysis object. And establishing a feature vector of the structure analysis object. And in combination with the scoring rule of each accidental damage influence factor, discriminating and analyzing the score of each accidental damage influence factor of the structure object. And the final accidental damage influence is obtained through the incidence matrix. And the accuracy and effectiveness of analysis data as well as effectiveness and reliability of data use and transmission are ensured.

The invention particularly relates to a seawater circulating pump sealing air bag pressure test device and an inspection method, and belongs to the technical field of nuclear power station nuclear-grade fluid machinery maintenance engineering. The device comprises an upper box body, a lower box body, a false shaft sleeve, a water side pressing hole and an air side pressing hole, the upper box body and the lower box body are detachably connected and jointly form a closed cavity used for containing an air bag. The upper box body and the lower box body are fastened and connected through a fixing piece; the false shaft sleeve is arranged in a closed cavity formed by the upper box body and the lower box body and is used for providing a simulated supporting surface for the air bag; the air side pressurizing hole is formed in the upper box body and / or the lower box body and used for being connected with an external air source and inflating the air bag; the water side pressurizing hole is formed in the false shaft sleeve and used for being connected with an external pressurizing pump and injecting water into the space between the false shaft sleeve and the air bag to apply pressure. According to the method, the device is used for carrying out the air bag pressing test. According to the invention, the actual working state of the air bag is simulated, and the integrity test and the seawater sealing performance test under the rated pressure are safely carried out on the air bag.

The invention relates to a rotating equipment full life cycle management system and method, and the system comprises an equipment data integration module which is used for synchronizing the basic data and organization structure information of rotating equipment in an equipment management system and the real-time monitoring data of a state monitoring system; the standardized maintenance engineering database module is used for storing precise maintenance parameters of the rotating equipment, a bearing parameter library and a historical maintenance report; the equipment level-to-level management module is used for providing a configurable evaluation tool and a level-to-level template and supporting quantitative level-to-level fusion of a scoring method, a regulation judgment method and a proportional method; and the failure analysis management module is used for realizing manual / batch input and structured standing book management of a failure mode. According to the invention, basic data and organization structure information of rotating equipment in an equipment management system and real-time monitoring data of a state monitoring system can be synchronized, an information island is broken, centralized management and sharing of data are realized, and comprehensive and accurate data support is provided for subsequent equipment management and maintenance decisions.

This invention discloses an adaptive pipe diameter changing mechanism, belonging to the field of pipe maintenance engineering technology. It includes two symmetrically arranged diameter changing units connected by a connecting unit. The connecting unit is equipped with a wheel assembly for pressing against the inner wall of the pipe to achieve movement. A driving mechanism is also provided between the two diameter changing units. Each diameter changing unit includes several diameter changing parts (first type) and diameter changing parts (second type) located on the side of the diameter changing parts (first type) away from the connecting unit. The connection method between diameter changing parts (first type) and diameter changing parts (second type) is as follows: the center of one diameter changing part (first type) is connected to the center of its corresponding diameter changing part (second type), and both ends of the diameter changing part (first type) are respectively connected to one end of two adjacent diameter changing parts (second type). The adaptive pipe diameter changing mechanism provided by this invention not only enables overall diameter changing but also adapts to relatively complex pipe environments, simplifying the structure and improving operational stability and reliability.

The invention discloses an electronic building quality defect insurance service method. According to the invention, site inspection is regularly carried out on the construction site through the third-party technical inspection service, construction cost control and risk prevention are carried out, construction engineering safety supervision and engineering quality detection are carried out, and new use requirements are found in operation period detection, so that engineering resources can be better utilized, and the engineering use efficiency can be improved. The intermediate detection can help an owner or a supervision mechanism to supervise the engineering construction quality, discover nonstandard behaviors in construction in time, correct and maintain the engineering quality, avoid accumulation and aggravation of quality problems in the construction process, ensure perfect construction of the engineering, and meet expected design standards and quality requirements; and engineering quality detection before acceptance also needs to carry out comprehensive detection on a construction site, including on-site safety and environmental problems, so that potential safety hazards in the construction engineering can be checked, and the safety and environmental protection in the engineering construction process can be ensured.

This invention discloses a high-precision robot for treating tunnel seepage, belonging to the field of tunnel maintenance engineering machinery technology. The robot includes a track-mounted mobile vehicle, an active anti-tipping mechanism, a six-degree-of-freedom robotic arm, a drilling device, a grouting system, a quick-assembly structure, and a vision scanning system. The track-mounted mobile vehicle achieves movement and positioning by walking on the tunnel track. The active anti-tipping mechanism uses adjustable support legs driven by worm gears to push the tunnel segments upwards, providing stable support against overturning. The vision scanning system performs global scanning and modeling through a first vision scanning unit and uses a second vision positioning unit for precise positioning of the work point. The six-degree-of-freedom robotic arm can quickly change the drilling device or grouting head through the quick-assembly structure, sequentially performing precise drilling and quantitative grouting operations. This invention achieves fully automated, high-precision, and continuous high-efficiency operation for treating tunnel seepage, effectively overcoming the shortcomings of manual treatment and existing equipment in terms of stability, accuracy, and efficiency.

The application relates to the field of civil aviation technology, and relates to a planned maintenance work cost evaluation method and system for a supplier SB / SIL. The evaluation method comprises the following steps: S1, establishing a basic cost motive identification database; S2, establishing an SB / SIL storage analysis database module; S3, calculating and measuring total cost; and S4, outputting a quantitative analysis suggestion report corresponding to whether an SB / SIL maintenance item is implemented. The evaluation system comprises a basic cost motive identification database module, an SB / SIL storage analysis database module, an algorithm matching accounting module and an evaluation report generation module. The planned maintenance work cost evaluation method and system for the supplier SB / SIL can improve the judgment accuracy of whether maintenance work is implemented by a planning maintenance engineering department of an airline, thereby being favorable to saving maintenance costs of the airline, avoiding safety hazards and improving the reliability and safety of airline operation.

The invention relates to an incomplete observation-state maintenance collaborative optimization method for a variable-stage corrosion process, and relates to a maintenance strategy design, modeling and optimization method based on an updating process theory. The method comprises the following specific steps: 1, variable-stage corrosion process characterization and maintenance strategy design; 2, modeling an updating process of preventive maintenance; 3, modeling in an updating process of repairable maintenance; and 4, constructing a maintenance optimization objective function, and performing optimization calculation and analysis. The method is suitable for maintenance planning engineering of typical variable-stage corrosion degradation products such as flange sealing assemblies, and particularly, the method constructed on the basis of considering false detection and missing detection observation errors can be better suitable for actual maintenance guarantee engineering; the method is of great significance to reasonable planning of maintenance operation, efficient development of spare part guarantee and even improvement of overall long-term operation benefits of products.

The application discloses a kind of railway engineering operation and maintenance BIM model rapid modeling method, the method includes: according to the classification standard of extension IFD, with hierarchical state evaluation as the basis, railway engineering facilities structure is gradually split, component structure tree is established, the minimum component unit after splitting is parameterized modeling, the creation of group is completed, the group includes contour group and placement group;Import line center line related file, set endpoint mileage and elevation, complete the setting of center line;For the component of contour group to be arranged, the method of scanning or fusion combined with center line is used, and mileage information is set;For the component of placement group to be arranged, the method of arranging along center line is used, and position parameter is set;The attribute of corresponding component is set and each component is uniquely coded, to complete railway engineering operation and maintenance BIM model.