A method for simulating testing of a tubular workpiece in a heating and vibration coupled environment

Abstract

The application provides a kind of heating and vibration coupling environment under the simulation test method of tubular workpiece, it is related to environmental simulation test field, adopt the connecting assembly including vibration coupler, infrared heating assembly, heat insulation layer, lamp holder assembly and water cooling platform, vibration coupler includes fixed support and installation pipe, infrared heating assembly includes quartz lamp, lamp clamp, high infrared short wave quartz radiator and high temperature wiring, heat insulation layer includes coupler insulation layer and flexible heat insulation layer, lamp holder assembly includes transition support frame and general support truss;Wherein, the wavelength of high infrared short wave quartz radiator is between 0.75-1.4 μm, tungsten is used for filament, lamp tube is sealed and vacuumized, and the temperature of filament reaches 1800-2400 DEG C.The test method can realize vibration under the premise of not affecting heating, synergistic effect, and then simulate the actual working condition of tubular workpiece, improve the accuracy of simulation test, reduce test error and risk.

Description

[0001] The present application is a divisional application of patent application No. 202210623470.8 and has the title "Heating-vibration connection assembly with heat insulation and buffering effect". TECHNICAL FIELD

[0002] The present application relates to the technical field of environmental simulation test, in particular to a simulation test method for tubular workpieces under heating and vibration coupling environment. BACKGROUND

[0003] The parts of aircrafts, ships, vehicles and the like equipment will face the special environment of vibration-impact-high temperature under some working conditions, which can accelerate the aging of the parts, reduce the service life of the parts, and even cause the deformation of the parts, the damage of the (internal or external) structure and the like problems, seriously affecting the use performance of the parts, and even inevitably causing safety hazards. Therefore, during the development and manufacturing of the parts of the aircraft, aerospace, marine and vehicle engineering and the like equipment, the environmental simulation test of the parts is usually needed; the materials and structures of the parts are tested through artificial simulation of various real environmental conditions, so as to evaluate the performance, reliability and durability of the parts under specific environment, provide reliable test data support for the development and production, and avoid the unpredictable aging or damage of the parts in the actual use process to the greatest extent. However, the existing comprehensive environmental test equipment has the problem that the simulated environmental factors are inconsistent with the actual working conditions of the parts, for example: the highest temperature simulated by the mature comprehensive test equipment on the market under vibration can only reach 300℃, while the high-temperature internal thermal environment of the power cabin (such as the exhaust system) of some equipment under vibration conditions can reach more than 800℃ when working, and the simulated environment and the actual working conditions have a large temperature difference. In addition, when the existing comprehensive environmental simulation equipment is used for high-temperature and vibration comprehensive environmental test simulation of tubular structural components (such as the exhaust system), the problems of uneven heating and heat overflow are easy to occur, which further leads to the inability to accurately and comprehensively evaluate the performance indicators of the tubular structural components, and the overflow heat is also easy to cause the aging and damage of the external equipment, increase the error and cost of simulation detection. SUMMARY

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

[0005] The application achieves the purpose by the following technical scheme.

[0006] A simulation test method for tubular workpieces in a heating and vibration coupling environment, characterized in that a connecting assembly comprising a vibration coupler, an infrared heating assembly, a heat insulation layer, a lamp holder assembly and a water cooling platform is used; the vibration coupler comprises two fixed supports and an installation pipe, the two fixed supports are both in an arch-shaped structure and each has a through hole in the middle, the installation pipe penetrates through the corresponding through holes of the two fixed supports at both ends and the outer wall of the installation pipe tightly fits the inner wall of the through hole, and the outer wall of the installation pipe between the two fixed supports is used for installing the workpiece to be tested; the infrared heating assembly comprises quartz lamp tubes, lamp tube clamps, high infrared short wave quartz radiators and high temperature wires, the quartz lamp tubes are multiple and are uniformly arranged on the inner side of the installation pipe around the central axis of the installation pipe and do not interfere with the inner wall of the installation pipe, the two ends of the quartz lamp tubes penetrate out of the two ends of the installation pipe and are connected with a lamp tube clamp respectively, the high infrared short wave quartz radiator is arranged on the part of the quartz lamp tubes corresponding to the workpiece to be tested, and the high temperature wire is arranged at one end of the quartz lamp tube and on the side of the lamp tube clamp away from the vibration coupler, and is used for energizing the high infrared short wave quartz radiator; the heat insulation layer comprises a coupler heat insulation layer and a flexible heat insulation layer, the coupler heat insulation layer uniformly covers the outer side of the fixed support, and the flexible heat insulation layer covers between the lamp tube clamp and the fixed support and is fixedly connected with the lamp tube clamp and the fixed support respectively; the lamp holder assembly comprises a transition support frame and a general support truss, the two ends of the transition support frame are fixedly connected with the lamp tube clamp, and the upper end of the transition support frame is fixedly connected with the general support truss, so as to realize the static state of the infrared heating assembly during the vibration of the vibration coupler and avoid the mutual influence of vibration and heating; the upper end surface of the water cooling platform is fixedly connected with the fixed support, the lower end surface is fixedly connected with the vibration table, and a plurality of cooling water pipes are uniformly distributed in the water cooling platform.

[0007] Based on the further optimization of the above scheme, to ensure that the heat of the infrared heating assembly in the installation pipe can be better transferred to the outside of the installation pipe, the thickness of the installation pipe wall is 4mm.

[0008] Based on a further optimization of the above solution, the quartz lamp tube adopts a double-bore tube structure with an "∞"-shaped cross-section. There are no fewer than five quartz lamp tubes, evenly distributed around the central axis of the mounting tube. The structure and position of the quartz lamp tubes ensure that the radiation area can fully cover the wall of the mounting tube, thereby ensuring uniform heating and avoiding local temperature differences. At the same time, the double-bore "∞"-shaped structure provides stronger anti-interference capabilities, a 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 installed in the quartz lamp tube and located on the central axis of the mounting tube to monitor the temperature of the high-infrared short-wave quartz radiator.

[0009] 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 pass through 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 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 passes through the side wall of the sealing support frame, and ceramic pads and nuts are arranged on the outer wall of the sealing support frame in sequence from close to the spring clamp to far away.

[0010] 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 made of alternating stacking of insulation layer and reflective layer 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 vibrating connector is vibrated and displaced up and down, 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.

[0011] 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 the cooling water pipe and avoid interference between the threaded holes and the cooling water pipe. Secondly, it prevents the heat on the fixed support from being directly transferred to the outside through the threaded holes, effectively ensuring that the heat on the fixed support is blocked by the water-cooling platform, thereby exchanging heat with the cooling water pipe to achieve cooling.

[0012] 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 the end of the hose away from the quick-connect connector is connected to an external circulating cooling water unit.

[0013] The following are the technical effects of the solution of the present invention:

[0014] The method of the present invention ensures that the infrared heating assembly and the vibration connector work independently of each other, that is, the infrared heating assembly 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 safety hazards caused by unstable high temperature of the heater; through the vibration of the vibration connector and the stable high temperature of the infrared heating assembly, the effective coupling of the internal heat source and vibration is guaranteed, 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 tubular workpieces (such as exhaust systems), obtaining corresponding data indicators, and providing reliable data support for subsequent evaluation, research and development of workpieces.

[0015] 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, the cooperation between the thermal insulation layer and the vibration connector and the infrared heating component can effectively avoid heat overflow and achieve short-term high-temperature heating (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

[0016] Figure 1 Schematic diagram of the overall structure of the connection assembly in an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the forward structure of the connection component in an embodiment of the present invention.

[0018] Figure 3 forFigure 2 AA cross-sectional view.

[0019] Figure 4 Schematic diagram of the structure of the vibration connector and infrared heating component in an embodiment of the present invention.

[0020] Figure 5 for Figure 4 Schematic diagram of the B-direction structure.

[0021] Figure 6 Schematic diagram of the structure of the water cooling platform in an embodiment of the present invention.

[0022] 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 gasket; 23. High infrared shortwave 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 connector; 52. First threaded hole; 53. Second threaded hole; 60. Workpiece to be tested. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0024] Example:

[0025] A simulation test method for a tubular workpiece under a heating and vibration coupling environment is 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 adopted; the vibration connector 10 includes two fixed supports 11 and a mounting tube 12, the two fixed supports 11 are both arched structures and a through hole is provided in the middle thereof, 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.

[0026] The infrared heating assembly 20 includes a quartz lamp 21, a lamp fixture 22, a high-infrared short-wave quartz radiator 23, and a high-temperature connection 24. The quartz lamp 21 is multiple and is evenly arranged on the inner side of the mounting tube 12 around the central axis of the mounting tube 12. The quartz lamp 21 does not interfere with the inner wall of the mounting tube 12. The quartz lamp 21 adopts a double-hole tube structure, and its cross section 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), 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 fully cover the wall of the mounting tube 12, thereby ensuring uniform heating and avoiding the problem of local temperature differences; at the same time, the "∞"-shaped structure of the double-hole tube is adopted, which has stronger anti-interference ability, 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 and are respectively connected to a lamp fixture 22 (as shown in FIG. Figure 3 As shown), the lamp fixture 22 includes a sealing support frame 221 and a clamping piece 222. The two ends of the quartz lamp 21 respectively penetrate the corresponding bottom surface of the sealing support frame 221, and the side of the sealing support frame 221 is provided with multiple clamping pieces 222 (as shown in FIG. Figure 5 As shown, the number of quartz lamps 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 set corresponding to the quartz lamp 21 (as shown in FIG. Figure 5 As shown), used for stably clamping 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), which is used to adjust the clamping portion according to the size of the quartz lamp 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 passes through the side wall of the sealing support frame 221. Ceramic pads 2225 and nuts 2224 are sequentially arranged on the outer wall of the sealing support frame 221 from close to the spring clamp 2221 to away from it (as shown in FIG. Figure 5 As shown in FIG. 2 ), the spring clamp 2221 is fixed to the sealing support frame 221 by means of bolts 2223, nuts 2224 and ceramic spacers 2225. A high-infrared short-wave quartz radiator 23 is provided in the middle of the quartz lamp tube 21 and in the portion corresponding to the workpiece 60 to be tested. A high-temperature connection 24 is provided at one end of the quartz lamp tube 21 and on the side of the lamp fixture 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 3As shown, by arranging the high-temperature wiring 24 on one side of the sealing support frame 221 and cooperating with the arrangement of the quartz lamp tube 21, the influence of high temperature on the wiring during the heating process, which may cause line damage or severe aging, is effectively avoided); a temperature sensor is arranged 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.

[0027] 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, reducing the impact 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 effectiveness of heating. 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 made of alternately stacked insulation layers and reflective layers 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), thereby ensuring that when the vibration connector 10 is vibrated and displaced up and down or 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 and prevents the heat in the mounting tube from overflowing, thereby achieving the coupling of the vibration dynamic environment and the thermal environment factors.

[0028] 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, thereby avoiding mutual influence between vibration and heating.

[0029] The upper end surface of the water-cooling platform 50 is fixedly connected with the fixed support 11, and the lower end surface is fixedly connected with the vibration table, and a plurality of cooling water pipes 51 are uniformly distributed in the water-cooling platform 50. The water-cooling platform 50 is fixedly connected with the fixed support 11 and the vibration table through the first threaded hole 52 and the second threaded hole 53. 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 provided for two purposes: one is to facilitate the arrangement of the cooling water pipe 51 and avoid interference between the threaded hole and the cooling water pipe 51, and the other is to avoid the heat on the fixed support 11 being directly transmitted 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, so as to exchange heat with the cooling water pipe 51 and achieve cooling. The cooling water pipe 51 is provided with a quick connector 510 at both ends, the quick connector 510 is connected with an external hose, and the end of the hose away from the quick connector 510 is communicated with an external circulating cooling water unit.

[0030] To ensure that the heat of the infrared heating assembly 20 in the mounting pipe 12 can be better transmitted to the outside of the mounting pipe 12, the thickness of the mounting pipe 12 is 4 mm. The length (i.e. the effective heating length) of the high-infrared short-wave quartz radiator 23 is 180-260 mm (preferably 220 mm). The thickness of the water-cooling platform 50 is 18-22 mm (preferably 20 mm).

[0031] Working principle:

[0032] In use, the workpiece to be tested 60 is arranged on the outer wall of the mounting pipe 12 between the two fixed supports 11 (the inner wall of the workpiece to be tested 60 abuts against the outer wall of the mounting pipe 12), the vibration table is started to drive the water-cooling platform 50 and the fixed support 11 fixedly connected with the upper end surface of the water-cooling platform 50 to vibrate together, thereby driving the workpiece to be tested 60 to vibrate, and the vibration working condition simulation is performed; the high-infrared short-wave quartz radiator 23 is started, the wavelength of the high-infrared short-wave quartz radiator 23 is between 0.75-1.4 μm, the filament adopts tungsten wire, the lamp tube is pressure sealed and vacuumized, and is filled with special protective gas. The unique wavelength characteristics of the short wave make the penetration of heating stronger and the reaction time faster, the temperature of the filament can reach 1800-2400 °C, and at the same time, the quartz outer tube can continuously and stably work in an environment above 1000 °C and has good chemical corrosion resistance. The high-infrared short-wave quartz radiator 23 radiates outward to uniformly radiate and heat the workpiece to be tested 60 mounted on the mounting pipe 12; at the same time, since the vibration coupler 10 is flexibly connected with the infrared heating assembly 20, the vibration of the vibration coupler 10 and the workpiece to be tested 60 as a whole will not affect the infrared heater assembly 20 (the infrared heater assembly 20 is fixed in the environmental simulation test box through the lamp holder assembly 40), and the mounting pipe 12 is effectively closed by the flexible heat insulation layer 32, thereby avoiding the overflow of a large amount of heat, and realizing the effective coupling of heat and vibration. In the process of heat-vibration coupling, 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 method for simulating testing of a tubular workpiece under a heating and vibration coupling environment, characterized by: A connection assembly comprising a vibration connector, an infrared heating assembly, a thermal insulation layer, a lamp stand assembly and a water-cooling platform is used. The vibration connector comprises two fixed supports and a mounting tube. Both fixed supports are arched structures and have a through hole in the middle. 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 fits tightly with the inner wall of the through hole. 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 assembly comprises a quartz lamp tube, a lamp fixture, a high-infrared short-wave quartz radiator and high-temperature wiring. The thermal insulation layer comprises a connector insulation layer and a flexible thermal insulation layer. The lamp stand assembly comprises a transition support frame and a universal support truss. 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. A high-infrared short-wave quartz radiator is set in the middle of the quartz lamp tube and corresponding to the part of the workpiece to be tested. A high-temperature connection is set 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, and the flexible thermal insulation layer is coated between the lamp tube fixture and the fixed support, and the flexible thermal insulation layer is flexibly connected to the lamp tube fixture and the fixed support respectively; 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. During use, the workpiece to be tested is placed 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 face 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 adopts tungsten wire, the lamp tube is pressure-sealed and vacuum-processed, 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 uniformly radiates and heats the workpiece to be tested installed on the mounting tube, thereby realizing effective heat-vibration coupling.

2. The method for simulating testing 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 do not interfere with the inner wall of the mounting tube; 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 multiple cooling water pipes are evenly distributed inside the water cooling platform; during the thermal-vibration coupling process, the fixed support is cooled by introducing cooling water into the cooling water pipes to prevent the fixed support from overheating.

3. A method for simulating testing 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; 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 installed in the quartz lamp tube and the temperature sensor is located on the central axis of the installation tube.

4. A method for simulating testing 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. The two ends of the quartz lamp tube respectively pass through the corresponding bottom surface 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 passes through 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. A 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 made of alternately stacked 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.

6. A method for simulating testing a tubular workpiece under a heating and vibration coupling environment according to claim 5, characterized in that: 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.

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 provided at both ends of the cooling water pipe, which are connected to an external hose. One end of the hose away from the quick-connect connector is connected to an external circulating cooling water unit.

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