Simulation test method for tubular workpiece in heating and vibration coupling environment

Abstract

The invention provides a simulation test method for a tubular workpiece in a heating and vibration coupling environment, and relates to the field of environment simulation test, a connecting assembly comprising a vibration coupler, an infrared heating assembly, a heat insulation and heat preservation layer, a lamp holder assembly and a water cooling platform is adopted, the vibration coupler comprises a fixed support and a mounting pipe, the infrared heating assembly comprises a quartz lamp tube, a lamp tube clamp, a high-infrared short-wave quartz radiator and a high-temperature connecting wire, the heat insulation layer comprises a connector heat insulation layer and a flexible heat insulation layer, and the lamp holder assembly comprises a transition supporting frame and a universal supporting truss. Wherein the wavelength of the high-infrared short-wave quartz radiator is 0.75-1.4 [mu] m, tungsten filaments are adopted as the lamp filaments, the lamp tube is subjected to press sealing and vacuumizing treatment, and the temperature of the lamp filaments reaches 1800-2400 DEG C. According to the test method, under the premise that heating is not affected by vibration, a synergistic effect can be achieved, then the actual working condition of the tubular workpiece is truly simulated, the simulation test accuracy is improved, and test errors and risks are reduced.

Description

[0001] The present invention is a divisional application of patent application number 202210623470.8, and the invention name is “A heating-vibration connection component with thermal insulation and buffering effect”. Technical Field

[0002] The invention relates to the technical field of environmental simulation testing, and in particular to a simulation testing method for a tubular workpiece in a heating and vibration coupling environment. Background Art

[0003] Parts of aircraft, ships, vehicles and other equipment will face a special environment of vibration-shock-high temperature under some working conditions. This environment can often accelerate the aging of parts, reduce the service life of parts, and even cause deformation of parts, (internal or external) structural damage and other problems, seriously affecting the performance of parts, and even inevitably causing safety hazards. Therefore, in the research and development and manufacturing process of parts for aerospace, navigation and vehicle engineering equipment, it is usually necessary to conduct environmental simulation tests on parts; by artificially simulating various real environmental conditions, the materials, structures, etc. of parts are tested to evaluate their performance, reliability and durability in specific environments, provide reliable test data support for research and development and production, and avoid unexpected aging or damage of parts during actual use to the greatest extent. However, the existing comprehensive environmental test equipment has the problem that the simulated environmental factor indicators are inconsistent with the actual working conditions of parts. For example, the mature comprehensive test equipment on the market can only simulate a maximum temperature of 300°C under vibration, while the high-temperature internal heat environment of some equipment power compartments (such as exhaust systems) can reach more than 800°C under vibration conditions. The temperature difference between the simulated environment and the actual working conditions is large. In addition, existing comprehensive environmental simulation equipment is prone to problems such as uneven heating and heat spillover when simulating high temperature and vibration comprehensive environmental tests on tubular structural components (such as exhaust systems), which makes it impossible to accurately and comprehensively evaluate the performance indicators of tubular structural components. The spilled heat can also easily cause aging and damage to external equipment, increasing the error and cost of simulation testing. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a simulation test method for tubular workpieces under a heating and vibration coupling environment, which can effectively and evenly heat the tubular structural components to ensure the accuracy and comprehensiveness of the simulation test results; at the same time, the test method avoids the risk of heat spillover while ensuring that the vibration has no effect on the heater, thereby effectively ensuring the heat (i.e., internal thermal environment)-vibration coupling effect, ensuring that the internal thermal environment can reach the required test high temperature, and avoiding the influence of vibration on the internal thermal environment and causing damage to the test equipment.

[0005] The purpose of the present invention is achieved through the following technical solutions: A simulation test method for a tubular workpiece under a heating and vibration coupling environment, characterized in that: a connection component including a vibration connector, an infrared heating component, a heat insulation layer, a lamp holder component and a water cooling platform is used; the vibration connector includes two fixed supports and a mounting tube, the two fixed supports are arched structures and a through hole is provided in the middle thereof, the two ends of the mounting tube respectively pass through the through holes corresponding to the fixed supports on both sides and the outer wall of the mounting tube is tightly fitted with the inner wall of the through hole, and the outer wall of the mounting tube located between the two fixed supports is used to mount the workpiece to be tested; the infrared heating component includes a quartz lamp tube, a lamp tube fixture, a high-infrared short-wave quartz radiator and a high-temperature wiring, the quartz lamp tubes are multiple, and they are evenly arranged on the inner side of the mounting tube around the central axis of the mounting tube and the quartz lamp tubes do not interfere with the inner wall of the mounting tube, the two ends of the quartz lamp tube respectively pass through the two ends of the mounting tube and are respectively connected to a lamp tube fixture, the middle of the quartz lamp tube and corresponding to the workpiece to be tested A high-infrared short-wave quartz radiator is arranged on part of the workpiece, and a high-temperature wiring is arranged on one end of the quartz lamp tube and on the side of the lamp tube fixture away from the vibration connector, so as to energize the high-infrared short-wave quartz radiator; the thermal insulation layer comprises a connector insulation layer and a flexible thermal insulation layer, the connector insulation layer is evenly coated on the outside of the fixed support, the flexible thermal insulation layer is coated between the lamp tube fixture and the fixed support, and the flexible thermal insulation layer is respectively fixedly connected to the lamp tube fixture and the fixed support; the lamp frame assembly comprises a transition support frame and a universal support truss, the two ends of the transition support frame are respectively fixedly connected to the lamp tube fixture, and the upper end of the transition support frame is fixedly connected to the universal support truss, so as to realize the stationary state of the infrared heating assembly during the vibration of the vibration connector, so as to avoid mutual influence between vibration and heating; the upper end surface of the water-cooling platform is fixedly connected to the fixed support, and the lower end surface is fixedly connected to the vibration table, and a plurality of cooling water pipes are evenly distributed inside the water-cooling platform.

[0006] Based on further optimization of the above solution, in order to ensure that the heat of the infrared heating component in the installation tube can be better transferred to the outside of the installation tube, the wall thickness of the installation tube is 4 mm.

[0007] Based on the further optimization of the above scheme, the quartz lamp tube adopts a double-hole tube structure, and its cross section is an "∞"-shaped structure; and the quartz lamp tubes are not less than 5, and they are evenly distributed around the central axis of the installation tube. Through the structure and position arrangement of the quartz lamp tube, it is ensured that the radiation area can fully cover the wall of the installation tube, thereby ensuring the uniformity of heating and avoiding the problem of local temperature difference; at the same time, the "∞"-shaped structure of the double-hole tube has stronger anti-interference, more uniform radiation range, and better mechanical properties; the length of the high-infrared short-wave quartz radiator (i.e., the effective heating length) is 180 to 260 mm; a temperature sensor is set in the quartz lamp tube and the temperature sensor is located on the central axis of the installation tube to monitor the temperature of the high-infrared short-wave quartz radiator.

[0008] Based on further optimization of the above scheme, the lamp tube clamp includes a sealing support frame and a clamping piece, the two ends of the quartz lamp tube respectively penetrate the corresponding bottom surfaces of the sealing support frame, and a plurality of clamping pieces are arranged on the side of the sealing support frame corresponding to the quartz lamp tube; the clamping piece includes a spring clamp, an adjusting nut, a bolt, a nut and a ceramic pad. The clamping part of the spring clamp is arranged corresponding to the quartz lamp tube and is used to stably clamp the quartz lamp tube. The adjusting nut is arranged in the adjusting part of the spring clamp and is used to adjust the clamping part according to the size of the quartz lamp tube. One end of the bolt is fixedly connected to the spring clamp, and the other end penetrates the side wall of the sealing support frame, and ceramic pads and nuts are arranged in sequence on the outer wall of the sealing support frame from close to the spring clamp to far away.

[0009] Based on further optimization of the above scheme, the connector insulation layer and the flexible thermal insulation layer are both made of fiber reflective material; the fiber reflective material is formed by alternatingly stacking insulation layers and reflective layers and coated with fiber cloth, and the insulation layer is made of one or more of aluminum silicate fiber, magnesium silicate fiber, aerogel felt, and ceramic fiber felt; the reflective layer is made of one or more of molybdenum foil, nickel foil, stainless steel foil, aluminum foil, and double-sided aluminum-plated polyimide film; the connector insulation layer is wrapped around the outer wall of the fixed support by spot welding; the flexible thermal insulation layer is flexibly connected to the fixed support and the lamp tube clamp (i.e., the sealing support frame) respectively, so as to ensure that when the vibration connector is vibrated and displaced up and down or left and right, the infrared heating component will not vibrate; at the same time, the flexible thermal insulation layer blocks the heat generated by the infrared heating component inside the mounting tube and prevents the heat in the mounting tube from overflowing, thereby realizing the coupling of vibration dynamic environment and thermal environment factors.

[0010] Based on further optimization of the above scheme, the thickness of the water cooling platform is 18 to 22 mm; the water cooling platform is fixedly connected to the fixed support and the vibration table by setting a first threaded hole and a second threaded hole respectively; the first threaded hole is a blind hole from top to bottom, and the second threaded hole is a through hole. The blind holes are set to facilitate the arrangement of cooling water pipes and avoid interference between the threaded holes and the cooling water pipes, and to avoid heat on the fixed support being directly transferred to the outside through the threaded holes, thereby effectively ensuring that the heat on the fixed support is blocked by the water cooling platform, thereby exchanging heat with the cooling water pipe and achieving cooling.

[0011] Based on further optimization of the above solution, quick-connect connectors are respectively provided at both ends of the cooling water pipe, the quick-connect connectors are connected to an external hose, and one end of the hose away from the quick-connect connector is connected to an external circulating cooling water unit.

[0012] The following are the technical effects of the solution of the present invention: The method of the present invention ensures that the infrared heating component and the vibration connector work independently of each other, that is, the infrared heating component is not disturbed by the vibration of the vibration connector, and can effectively avoid problems such as damage to the heater caused by vibration, uneven temperature transfer, and potential safety hazards caused by unstable high temperature of the heater; through the vibration of the vibration coupler and the stable high temperature of the infrared heating component, the effective coupling of the internal heat source and the vibration is ensured, and the use requirements of the composite environment simulation working condition of about 1200°C and 1-2200Hz wide-band vibration are realized, thereby truly simulating the actual use conditions of the tubular workpiece (such as the exhaust system), obtaining corresponding data indicators, and providing reliable data support for the evaluation and research and development of subsequent workpieces.

[0013] In addition, the present application can achieve uniform radiation heating of all parts of the tubular workpiece through the cooperation of the infrared heating component and the vibration connector, avoiding problems such as large errors and incomplete test results caused by uneven heating; at the same time, by utilizing the cooperation between the thermal insulation layer and the vibration connector and the infrared heating component, heat overflow can be effectively avoided, and high-temperature heating can be achieved in a short time (i.e., reaching the heating high temperature in a short time), which not only improves the efficiency of the simulation test, but also effectively saves energy, ensures the heating effect, and avoids errors caused by heat overflow and damage to other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the overall structure of the connection assembly in an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the forward structure of the connection component in an embodiment of the present invention.

[0016] Figure 3 for Figure 2 AA section view.

[0017] Figure 4 It is a schematic diagram of the structure of the vibration connector and the infrared heating component in an embodiment of the present invention.

[0018] Figure 5 for Figure 4 Schematic diagram of the B-direction structure.

[0019] Figure 6 Schematic diagram of the structure of the water cooling platform in an embodiment of the present invention.

[0020] Among them, 10, vibration connector; 11, fixed support; 12, mounting tube; 20, infrared heating assembly; 21, quartz lamp; 22, lamp fixture; 221, sealing support frame; 222, clamp; 2221, spring clamp; 2222, adjusting nut; 2223, bolt; 2224, nut; 2225, ceramic pad; 23, high infrared short wave quartz radiator; 24, high temperature wiring; 30, thermal insulation layer; 31, connector insulation layer; 32, flexible insulation layer; 40, lamp stand assembly; 41, transition support frame; 42, universal support truss; 50, water cooling platform; 51, cooling water pipe; 510, quick plug connector; 52, first threaded hole; 53, second threaded hole; 60, workpiece to be tested. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example: A simulation test method for a tubular workpiece under a heating and vibration coupling environment, characterized in that: a connection assembly including a vibration connector 10, an infrared heating assembly 20, a thermal insulation layer 30, a lamp holder assembly 40 and a water cooling platform 50 is used; the vibration connector 10 includes two fixed supports 11 and a mounting tube 12, the two fixed supports 11 are both arched structures and have a through hole in the middle, the two ends of the mounting tube 12 respectively pass through the through holes corresponding to the fixed supports 11 on both sides and the outer wall of the mounting tube 12 is tightly fitted with the inner wall of the through hole, and the outer wall of the mounting tube 12 located between the two fixed supports 11 is used to mount the workpiece 60 to be tested.

[0023] The infrared heating assembly 20 includes a quartz lamp tube 21, a lamp tube fixture 22, a high infrared short-wave quartz radiator 23 and a high temperature wiring 24. The quartz lamp tubes 21 are multiple and are evenly arranged on the inner side of the mounting tube 12 around the central axis of the mounting tube 12. The quartz lamp tubes 21 and the inner wall of the mounting tube 12 do not interfere with each other. The quartz lamp tubes 21 adopt a double-hole tube structure, and the cross section thereof is an "∞"-shaped structure (such as Figure 5 As shown); and the quartz lamp tubes 21 are not less than 5 ( Figure 5 6 are shown in the figure), which are evenly distributed around the central axis of the mounting tube 12; through the structure and position arrangement of the quartz lamp tube 21, it is ensured that the radiation area can cover the entire wall of the mounting tube 12, thereby ensuring the uniformity of heating and avoiding the problem of local temperature difference; at the same time, the "∞"-shaped structure of the double-hole tube is adopted, which has stronger anti-interference, more uniform radiation range and better mechanical properties. The two ends of the quartz lamp tube 21 pass through the two ends of the mounting tube 12 respectively and are connected to a lamp tube fixture 22 respectively (as shown in the figure). Figure 3As shown in FIG. 1 ), the lamp fixture 22 includes a sealing support frame 221 and a clamping member 222. The two ends of the quartz lamp 21 respectively penetrate the corresponding bottom surface of the sealing support frame 221, and a plurality of clamping members 222 (such as Figure 5 As shown, the number of quartz lamp tubes 21 is 6, so the number of clamping members 222 is also 6); the clamping member 222 includes a spring clamp 2221, an adjusting nut 2222, a bolt 2223, a nut 2224 and a ceramic pad 2225, and the clamping portion of the spring clamp 2221 is arranged corresponding to the quartz lamp tube 21 (such as Figure 5 As shown), used to stably clamp the quartz lamp 21, the adjusting nut 2224 is set in the adjusting part of the spring clamp 2221 (as shown Figure 5 As shown, the spring clamp 2221 adjustment portion is similar to a "door" shaped structure), and is used to adjust the clamping portion according to the size of the quartz lamp tube 21. One end of the bolt 2223 is fixedly connected to the spring clamp 2221 (that is, the end of the spring clamp 2221 away from the clamping portion), and the other end penetrates the side wall of the sealing support frame 221. Ceramic pads 2225 and nuts 2224 (such as the outer wall of the sealing support frame 221 are sequentially arranged from close to the spring clamp 2221 to away from the spring clamp 2221) Figure 5 As shown in FIG. 2 ), the spring clamp 2221 is fixed in the sealing support frame 221 by bolts 2223, nuts 2224 and ceramic pads 2225. A high-infrared short-wave quartz radiator 23 is arranged in the middle of the quartz lamp tube 21 and corresponding to the part of the workpiece 60 to be tested. A high-temperature wiring 24 is arranged at one end of the quartz lamp tube 21 and located on the side of the lamp tube clamp 22 (i.e., the sealing support frame 221) away from the vibration connector 10, for energizing the high-infrared short-wave quartz radiator 23 (as shown in FIG. 2 ). Figure 3 As shown, by setting the high-temperature wiring 24 on one side of the sealing support frame 221 and cooperating with the setting of the quartz lamp tube 21, the influence of high temperature on the wiring during the heating process, causing line damage or serious aging problems, is effectively avoided); a temperature sensor is set in the quartz lamp tube 21 and the temperature sensor is located on the central axis of the mounting tube 12 (the specific length and placement position of the temperature sensor are determined according to actual conditions, which can be understood by those skilled in the art, and the specific implementation method of this application will not be discussed in detail), which is used to monitor the temperature of the high-infrared short-wave quartz radiator 23.

[0024] The heat-insulating layer 30 includes a connector heat-insulating layer 31 and a flexible heat-insulating layer 32. The connector heat-insulating layer 31 is evenly coated on the outside of the fixed support 11 to reduce the influence of the heat of the non-installed test workpiece 60 area of ​​the vibration connector 10 on the entire studio environment. At the same time, it also ensures the rapid heating of the heating area, avoids heat loss, and ensures the heating effectiveness. The flexible heat-insulating layer 32 is coated between the lamp fixture 22 (i.e., the sealing support frame 221) and the fixed support 11, and the flexible heat-insulating layer 31 is fixedly connected to the lamp fixture 22 (i.e., the sealing support frame 221) and the fixed support 11 respectively (such as Figure 3 As shown); the connector insulation layer 31 and the flexible insulation layer 32 are both made of fiber reflective material; the fiber reflective material is formed by alternately stacking insulation layer and reflective layer and coated with fiber cloth, the insulation layer is made of one or more of aluminum silicate fiber, magnesium silicate fiber, aerogel felt, and ceramic fiber felt; the reflective layer is made of one or more of molybdenum foil, nickel foil, stainless steel foil, aluminum foil, and double-sided aluminum-plated polyimide film; the connector insulation layer 31 is wrapped around the outer wall of the fixed support 11 by spot welding; the flexible insulation layer 32 is flexibly connected to the fixed support 11 and the lamp fixture 22 (i.e., the sealing support frame 221), respectively, so as to ensure that when the vibration connector 10 is vibrated and moves up and down, left and right, the infrared heating component 20 will not vibrate; at the same time, the flexible insulation layer 32 blocks the heat generated by the infrared heating component 20 inside the mounting tube 12 to prevent the heat in the mounting tube from overflowing, thereby realizing the coupling of vibration dynamic environment and thermal environment factors.

[0025] The lamp frame assembly 40 includes a transition support frame 41 and a universal support truss 42. The two ends of the transition support frame 41 are respectively fixedly connected to the lamp tube clamp 22 (i.e., the sealing support frame 221) and the upper end of the transition support frame 41 is fixedly connected to the universal support truss 42, which is used to achieve the stationary state of the infrared heating assembly 20 during the vibration of the vibration connector 10 to avoid mutual influence between vibration and heating.

[0026] The upper end surface of the water-cooling platform 50 is fixedly connected to the fixed support 11, and the lower end surface is fixedly connected to the vibration table, and multiple cooling water pipes 51 are evenly distributed inside the water-cooling platform 50. The water-cooling platform 50 is fixedly connected to the fixed support 11 and the vibration table by setting a first threaded hole 52 and a second threaded hole 53 respectively; the first threaded hole 52 is a blind hole from top to bottom, and the second threaded hole 53 is a through hole. The blind hole is set to facilitate the arrangement of the cooling water pipe 51 and avoid interference between the threaded hole and the cooling water pipe 51, and secondly, to avoid the heat on the fixed support 11 from being directly transferred to the outside through the threaded hole, effectively ensuring that the heat on the fixed support 11 is blocked by the water-cooling platform 50, thereby heat exchange with the cooling water pipe 51 to achieve cooling. Quick-plug connectors 510 are respectively set at both ends of the cooling water pipe 51, and the quick-plug connector 510 is connected to an external hose, and the end of the hose away from the quick-plug connector 510 is connected to an external circulating cooling water unit.

[0027] To ensure that the heat of the infrared heating assembly 20 in the mounting tube 12 can be better transferred to the outside of the mounting tube 12, the wall thickness of the mounting tube 12 is 4 mm. The length of the high infrared short-wave quartz radiator 23 (i.e., the effective heating length) is 180 to 260 mm (preferably 220 mm). The thickness of the water cooling platform 50 is 18 to 22 mm (preferably 20 mm).

[0028] Working principle: When in use, the workpiece 60 to be tested is set on the outer wall of the mounting tube 12 between the two fixed supports 11 (the inner wall of the workpiece 60 to be tested is close to the outer wall of the mounting tube 12), and the vibration table is started to drive the water cooling platform 50 and the fixed support 11 fixedly connected to the upper end surface to vibrate together, thereby driving the workpiece 60 to be tested to vibrate, and simulate the vibration working condition; the high infrared short-wave quartz radiator 23 is started, and the wavelength of the high infrared short-wave quartz radiator 23 is between 0.75 and 1.4μm, the filament is made of tungsten wire, the lamp tube is sealed and vacuumed, and the interior is filled with special protective gas. The wavelength characteristics of short waves make the heating more penetrating and the reaction time faster. The temperature of the filament can reach 1800-2400℃, and the quartz outer tube can work stably and continuously in an environment above 1000℃ and has good chemical corrosion resistance. The high-infrared short-wave quartz radiator 23 radiates outward to uniformly radiate and heat the workpiece 60 to be tested mounted on the mounting tube 12; at the same time, since the vibration connector 10 is flexibly connected to the infrared heating assembly 20, the vibration of the vibration connector 10 and the workpiece 60 to be tested as a whole will not affect the infrared heating assembly 20 (the infrared heating assembly 20 is fixed in the environmental simulation test box through the lamp holder assembly 40), and the mounting tube 12 is effectively sealed by the flexible insulation layer 32, thereby avoiding a large amount of heat overflow and achieving effective heat-vibration coupling. During the heat-vibration coupling process, cooling water is introduced into the cooling water pipe 51 to cool the fixed support 11 and avoid overheating of the fixed support 11.

Claims

1. A simulation test method for a tubular workpiece under a heating and vibration coupling environment, characterized in that: A connection assembly including a vibration connector, an infrared heating assembly, a heat insulation layer, a lamp stand assembly and a water cooling platform is used. The vibration connector includes two fixed supports and a mounting tube. Both fixed supports are arched structures and have a through hole in the middle. Both ends of the mounting tube pass through the through holes corresponding to the fixed supports on both sides, and the outer wall of the mounting tube is tightly fitted with the inner wall of the through hole. The outer wall of the mounting tube located between the two fixed supports is used to install the workpiece to be tested. The infrared heating assembly includes a quartz lamp tube, a lamp tube fixture, a high-infrared short-wave quartz radiator and a high-temperature wiring. The heat insulation layer includes a connector insulation layer and a flexible insulation layer. The lamp stand assembly includes a transition support frame and a universal support truss. When in use, the workpiece to be tested is set on the outer wall of the mounting tube between two fixed supports, and the vibration table is started to drive the water-cooling platform and the fixed support fixedly connected to its upper end surface to vibrate together, thereby driving the workpiece to be tested to vibrate and perform vibration working condition simulation; the high-infrared short-wave quartz radiator is started, the wavelength of the high-infrared short-wave quartz radiator is between 0.75 and 1.4 μm, the filament is made of tungsten filament, the lamp tube is sealed and vacuumed, and the interior is filled with protective gas. The temperature of the filament reaches 1800 to 2400°C, and the quartz outer tube can work continuously and stably in an environment above 1000°C; the high-infrared short-wave quartz radiator radiates outward and performs uniform radiation heating on the workpiece to be tested installed on the mounting tube, thereby realizing effective heat-vibration coupling.

2. The method for simulating the testing of a tubular workpiece under a heating and vibration coupling environment according to claim 1, characterized in that: There are multiple quartz lamp tubes, which are evenly arranged on the inner side of the mounting tube around the central axis of the mounting tube, and the quartz lamp tubes do not interfere with the inner wall of the mounting tube. The two ends of the quartz lamp tube pass through the two ends of the mounting tube respectively and are connected to a lamp tube fixture respectively. A high-infrared short-wave quartz radiator is arranged in the middle of the quartz lamp tube and in the part corresponding to the workpiece to be tested. A high-temperature wiring is arranged at one end of the quartz lamp tube and on the side of the lamp tube fixture away from the vibration connector; the connector insulation layer is evenly coated on the outside of the fixed support, the flexible heat insulation layer is coated between the lamp tube fixture and the fixed support, and the flexible heat insulation layer is fixedly connected to the lamp tube fixture and the fixed support respectively; the two ends of the transition support frame are fixedly connected to the lamp tube fixture respectively, and the upper end of the transition support frame is fixedly connected to the universal support truss; the upper end surface of the water-cooling platform is fixedly connected to the fixed support, and the lower end surface is fixedly connected to the vibration table, and a plurality of cooling water pipes are evenly distributed inside the water-cooling platform; During the thermal-vibration coupling process, cooling water is introduced into the cooling water pipe to cool the fixed support and prevent overheating of the fixed support.

3. The method for simulating the testing of a tubular workpiece under a heating and vibration coupling environment according to claim 2, characterized in that: The quartz lamp tube adopts a double-hole tube structure, and its cross-section is an "∞"-shaped structure; and there are no less than 5 quartz lamp tubes, which are evenly distributed around the central axis of the installation tube; the length of the high-infrared short-wave quartz radiator is 180 to 260 mm; a temperature sensor is arranged in the quartz lamp tube and the temperature sensor is located on the central axis of the installation tube.

4. The method for simulating the testing of a tubular workpiece under a heating and vibration coupling environment according to claim 3, characterized in that: The lamp tube clamp includes a sealing support frame and a clamping piece. Both ends of the quartz lamp tube respectively penetrate the corresponding bottom surfaces of the sealing support frame, and multiple clamping pieces are arranged on the side of the sealing support frame corresponding to the quartz lamp tube; the clamping piece includes a spring clamp, an adjusting nut, a bolt, a nut and a ceramic pad. The clamping part of the spring clamp is arranged corresponding to the quartz lamp tube and is used to stably clamp the quartz lamp tube. The adjusting nut is arranged on the adjusting part of the spring clamp and is used to adjust the clamping part according to the size of the quartz lamp tube. One end of the bolt is fixedly connected to the spring clamp, and the other end penetrates the side wall of the sealing support frame. Ceramic pads and nuts are arranged in sequence on the outer wall of the sealing support frame from close to the spring clamp to far away.

5. The method for simulating testing a tubular workpiece under a heating and vibration coupling environment according to claim 4, characterized in that: The connector insulation layer and the flexible thermal insulation layer are both made of fiber reflective material; the fiber reflective material is formed by alternately stacking insulation layers and reflective layers and covered with fiber cloth, the insulation layer is made of one or more of aluminum silicate fiber, magnesium silicate fiber, aerogel felt, and ceramic fiber felt; the reflective layer is made of one or more of molybdenum foil, nickel foil, stainless steel foil, aluminum foil, and double-sided aluminum-plated polyimide film; the connector insulation layer is wrapped around the outer wall of the fixed support by spot welding; the flexible thermal insulation layer is flexibly connected to the fixed support and the lamp tube clamp respectively.

6. The method for simulating the testing of a tubular workpiece in a heating and vibration coupling environment according to claim 5, characterized in that: The thickness of the water cooling platform is 18-22 mm; the water cooling platform is fixedly connected to the fixed support and the vibration table by setting a first threaded hole and a second threaded hole respectively; the first threaded hole is a blind hole from top to bottom, and the second threaded hole is a through hole.

7. The method for simulating testing a tubular workpiece under a heating and vibration coupling environment according to claim 2, characterized in that: Quick-connect connectors are respectively arranged at both ends of the cooling water pipe, which are connected to an external hose, and one end of the hose away from the quick-connect connector is connected to an external circulating cooling water unit.

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