RU2703407C1 - Repair method of complex technical complexes - Google Patents

Abstract

FIELD: complex engineering systems.

SUBSTANCE: method of repairing complex technical complexes involves a complex control mode, which results in determining the fault location. It is specified, which component parts may be faulty and the first of suspected faults is removed from the complex. Replacement of working part from spare parts is performed, secondary mode of integrated control of complex is re-enabled and fact of recovery of system serviceability is established. Then, the installed component part is replaced with the first component suspected of failure and the built-in control mode is switched on for the third time. When fixing the fault, the first component part is replaced with a spare part that is not damaged. At fixation of restoration of working capacity of complex preventive works for installation parts are carried out. When the fault is recorded based on the results of the secondary switching on of the control mode, the first component suspected of failure is considered to be sound and not replaceable.

EFFECT: improved accuracy of diagnosis.

1 cl, 1 dwg

Description

The invention relates to the field of maintenance and repair of complex technical complexes, including products of military and special equipment.

A known method of automated control of electrical circuits of complex technical products (patent RU 2554658, IPC: G01R 31/00, published 06/27/2015), based on the use of a control device that includes a computer and a measuring device and switch connected to it via an interface bus, including connecting channels the switch through technological harnesses to the contacts of the electrical circuits of the controlled product, measuring the parameters of the electrical circuits using a measuring device controlled by a computer and evaluating the quality of the electrical circuits of the measurement results. The application of this method is limited by the presence of interchangeable adapters to the standard connectors of the product and the performance of only testing electrical circuits.

The main stage in the repair of complex technical systems is the technical diagnostics of the components of the complex.

A known method for diagnosing equipment (patent RU 2265236, IPC: G05B 23/02, published November 27, 2005), in which, for each set of input test signals, they generate preliminary response signals for intermediate points of the device under control and compare them with the parameters of the reference response signals. This rather simple implementation method is applicable only for diagnostics of logical circuits of a device with intermediate monitoring points available for connection.

A known method of finding a faulty block in a dynamic system (patent RU 2451319, IPC: G05B 23/02, G06F 11/22, published 05/20/2012) for monitoring and diagnosing automatic control systems and their elements, in which the number of dynamic blocks of the controlled system is fixed, the reaction of a known-good system is recorded on an interval at control points, and the integral estimates of the system output signals are determined.

For complex technical complexes, such as multichannel radar stations, consisting of a large number of blocks, functional units, modules and sets of mounting parts, a different approach is required for technical diagnostics with subsequent repair in stationary and field conditions. The method of automated control of electrical circuits of complex technical products according to the patent RU 2554658 can be applied to a set of mounting parts, but with a large range of controlled parts having various connectors, it will lead to high costs for the formation of a set of adapters for connection to technological harnesses.

The closest technical solution, selected as a prototype in relation to the claimed method, is a method for repairing complex technical systems and their replaceable components using mobile repair and diagnostic systems (patent RU 2376164, IPC: B60P 3/14, published on December 20, 2009) , including the use of spare parts and accessories, operational and repair documentation on the profile of the serviced complex technical system (complex), while determining the technical condition by the results of parameter monitoring ostavnyh parts, replace faulty components identified in the serviceable from the spare parts, to establish the facts restore functionality surveyed part and serviced products generally pass the defective component parts for repairs. This method can be applied only to technical systems of a certain profile located at a distance of accessibility of motor vehicles, and the main malfunctions of which are damage to mechanical components.

The technical problem solved by the creation of this invention lies in the insufficiently accurate diagnosis of the components of complex technical complexes and in the absence of diagnostics of the connections and mounting parts according to the accessories of the examined component, which leads to an increase in the cost of repairs.

The technical result, to which the claimed invention is directed, consists in providing diagnostics of intra-object installation (connections and assembly parts) and components of complex technical complexes, as well as in reducing the cost of repairs by improving the accuracy of diagnostics.

The technical result is achieved by the fact that in the method of repairing complex technical complexes, including the use of spare parts and accessories, operational and repair documentation on the profile of the complex being serviced, the technical condition of the components is determined by the results of the control of parameters, the identified faulty components are replaced with serviceable ones from the spare parts , establish the fact of restoration of operability of the inspected component and the serviced product as a whole, transmit avnye component parts for repairs. In this case, the following sequence of actions is performed: they turn on the integrated control mode of the complex, according to which the location of the malfunction is determined, according to the operational documentation, they determine which components may be malfunctioning, remove the first component suspected of a malfunction from the complex, and replace it with a working component from the composition of spare parts, turn on the mode of integrated control of the complex for the second time, establish the fact of restoration of the complex’s performance, replace they remove the installed component from the first component that is suspected of a malfunction, turn on the integrated control mode of the complex for the third time, when fixing the malfunction, replace the first component with a working one from the spare parts, and when fixing the restoration of the complex’s performance, preventive work is carried out for the installation parts, when fixing malfunctions according to the results of the secondary activation of the built-in control mode, the first component suspected of malfunction is considered serviceable and by replacing it, the next Nth component suspected of a malfunction is removed from the complex, replaced with a serviceable component from the spare parts list, the N-th time is switched on the integrated control mode of the complex, the fact of restoration of the complex’s operability is established, the installed component is replaced with N of the component that is suspected of a malfunction, the N + 1st time includes the integrated control mode of the complex, when fixing the malfunction, the Nth component is replaced by a working part from the spare part d, when fixing the restoration of the complex’s operability, preventive work of the mounting parts is carried out according to the accessories of the component under investigation, when fixing the malfunction according to the results of the Nth inclusion of the built-in control mode, the Nth component suspected of malfunction is considered to be serviceable and inappropriate replacement, the results of the repair of the complex in the accompanying documentation.

The essence of the claimed invention lies in the fact that the method of repairing complex technical complexes involves the use of spare parts and accessories, maintenance and repair documentation on the profile of the complex being serviced, and the technical condition of the components is determined by the results of parameter monitoring, the identified faulty components are replaced by working parts spare parts and establish the fact of restoration of the health of the examined component and the serviced complex as a whole scrap, after which defective components are transferred for repair.

The claimed method includes the following sequence of actions.

First, they turn on the mode of integrated control of the complex, according to the results of which the location of the malfunction is determined, according to the operational documentation, which components can be malfunctioned. Modern complex technical complexes, as a rule, contain means of integrated health monitoring, and operational documentation can be performed on paper or electronic media. Next, the first component suspected of a malfunction is removed from the complex and replaced with a serviceable component from the spare parts. Secondarily turn on the mode of integrated control of the complex, establish the fact of restoration of the health of the examined component. To confirm the correct determination of the malfunction, the installed component is replaced with the first component suspected of malfunction. The third time they turn on the integrated control mode of the complex, and when fixing a malfunction, the first component is considered malfunctioning and replaced with a working part from the spare parts. When fixing the restoration of the health of the examined component, preventive work is carried out for the mounting parts. When fixing a malfunction according to the results of the secondary inclusion of the built-in control mode, the first component suspected of a malfunction is considered to be serviceable and inappropriate replacement. Next, the next Nth component suspected of a malfunction is removed from the complex, replaced with a serviceable component from the spare parts. For the nth time, they turn on the integrated control mode of the complex, establish the fact of the restoration of the health of the Nth component suspected of malfunctioning. To confirm the correctness of determining the malfunction, replace the installed component with the Nth component suspected of the malfunction, N + 1-time switch on the integrated control mode of the complex. When fixing a malfunction, the Nth component is considered malfunctioning and replaced with a working part from the spare parts. When fixing the restoration of the health of the Nth of the suspected component malfunctions, preventive work is carried out for the mounting parts according to the accessories of the component under investigation. When fixing, according to the results of the Nth inclusion of the built-in control mode, a malfunction, the Nth component suspected of a malfunction is considered to be a working and inappropriate replacement. In conclusion, the results of the repair of the complex are recorded in the accompanying documentation.

The technical implementation of the method of repairing complex technical complexes can be considered on the example of a radar complex, a conditional diagram of which is shown in the drawing.

The radar complex in its general form contains: an antenna (A) 1, a waveguide path (BT) 2, a microwave receiver (UHF) 3, a radio transmitting device (RPU) 4, an analog-digital receiver (ADCU) 5, a driver unit ( BZG) 6, the power supply unit of the radio transmitting device (BP RPU) 7, the on-board computer (BVM) 8, the programmable signal processor (PPS) 9, the synchronization unit (BS) 10, the multi-function indicator (MFI) 11, the block of power modules (BMP) 12. As can be seen in the diagram, the components of the complex are interconnected with another, and a malfunction of one component leads to a malfunction of the interconnected components, which creates significant difficulties in determining the point of malfunction.

To localize the malfunction, perform the following sequence of actions.

Using BVM 8, the mode of integrated control of the complex is switched on, while the results of control are recorded on MFI 11. Suppose, according to the results of the control, the receiving path is faulty, which consists of the microwave PU 3 and the ADCU 5. From the operational documentation it is known that the correct operation of the receiving path depends on the operation of the BZG 6, BMP 12, and also on the quality of the mounting parts. Therefore, four components are suspected of malfunctioning. Start with microwave PU 3, which is removed from the complex and replaced with a working microwave PU 3 from the spare parts. They turn on the mode of integrated control of the complex for the second time, while on MFI 11, for example, a failure of the receiving path is recorded, which implies that the removed microwave control unit 3 is serviceable, cannot be replaced and returned to the complex. Next, they are removed from the composition of the complex of ATsPU 5 and replaced with a working one from the composition of spare parts. They turn on the mode of integrated control of the complex, at MFI 11, for example, they fix the recovery of the working path, which confirms the suspicion of a malfunction of the removed ADCU 5. But as noted earlier, the operation of the blocks also depends on the quality of the mounting parts. For reliability, the ADCU 5 is changed to the ADCU 5 previously removed from the complex. The mode of the integrated control of the complex is turned on; for example, MFI 11 fixes a malfunction in the receiving path, therefore, the ADCU 5 originally removed from the complex is faulty and must be replaced in the prescribed manner. Let’s say, at MFI 11, the recovery of the working path is recorded; therefore, the unit that was originally removed from the ADCU 5 complex is in good condition, while the preventive work of the mounting parts connected to the ADCU 5 is carried out. The preventive work of the mounting parts in the general case consists in visual and electrical integrity control mounting part and safety elements, blowing and washing connectors with alcohol-nephras mixture. If the failure of the receiving path is not resolved in the process of the above operations, then proceed to a similar check of mutually affecting components. The diagram shown in the figure shows the main parts of the radar system to describe the essence of the proposed method. Real radar systems are much more complex and contain numerous components, which increases the time to complete technical diagnostics and repairs, but does not change the essence of the method.

The proposed sequence of actions when performing technical diagnostics and repair of complex technical complexes provides a consistent check of all the components included in the complex, the prevention of mounting parts, as the most critical when transmitting control signals. Repeated removal and installation of a component suspected of a malfunction in the complex with subsequent verification in the built-in control mode eliminates the unreasonable transfer of components for repair. The large-scale deployment of military equipment at the present stage requires significant costs for the transfer of components and complexes as a whole to repair organizations. The use of mobile repair and diagnostic systems for highly integrated products is impossible, since it does not provide production technology and the quality of acceptance tests.

Thus, the use of built-in control and sequential verification of all components suspected of a malfunction of the complex, as well as the diagnosis of on-site installation, guarantees the quality of the repair work. Repeated rechecking of a component suspected of a malfunction allows reducing the costs of servicing the complex at the places of deployment and during work in the repair organization by eliminating the transfer of serviceable components for repair.

Claims (1)

A method of repairing complex technical complexes, including the use of spare parts and accessories, maintenance and repair documentation on the profile of the serviced complex, in which the technical condition of the components is determined by the results of parameter monitoring, the identified faulty components are replaced with serviceable ones from the spare parts, the fact of operability recovery is established the component being inspected and the product being serviced as a whole, faulty components are being transferred for repair, ex resulting in the following sequence of actions: they turn on the integrated control mode of the complex, according to which the location of the malfunction is determined, according to the operational documentation, they determine which components may be malfunctioning, remove the first component suspected of a malfunction from the complex, and replace it with a working component part of the spare parts, the second time include the integrated control mode of the complex, establish the fact of restoration of the computer Exxa, replace the installed component with the first component that is suspected of a malfunction, turn on the complex’s built-in control mode for the third time, when fixing the malfunction, replace the first component with the serviceable one of the spare parts, and when fixing the restoration of the complex’s performance, preventive work is carried out for the installation parts, when fixing a malfunction according to the results of the secondary activation of the built-in control mode, the first component suspected of a malfunction is considered correct non-replaceable, remove the next Nth component from the complex suspected of malfunction, replace it with a serviceable component from the spare parts list, turn on the complex control mode for the Nth time, establish the fact that the complex has been restored to operability, replace the installed component part to the Nth component suspected of a malfunction, N + 1st time turn on the integrated control mode of the complex, when fixing a malfunction, the Nth component is replaced by a working reserve nth parts, when fixing the restoration of the complex’s performance, preventive work of the mounting parts is carried out according to the accessories of the component under investigation, when fixing a malfunction according to the results of the Nth inclusion of the built-in control mode, the Nth component suspected of a malfunction is considered serviceable and not to be replaced, the results of the complex repair are recorded in the accompanying documentation.

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