CN103672280B - Long apart from wide warm area conduit compensation device - Google Patents
Long apart from wide warm area conduit compensation device Download PDFInfo
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- CN103672280B CN103672280B CN201310611801.7A CN201310611801A CN103672280B CN 103672280 B CN103672280 B CN 103672280B CN 201310611801 A CN201310611801 A CN 201310611801A CN 103672280 B CN103672280 B CN 103672280B
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- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000003380 propellant Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube comprising two or more bellows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations
- F16L51/028—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations with the expansion or contraction of each corrugation being limited
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
本发明涉及长距离宽温区导管补偿装置，包括三个补偿器、两个拉杆组件和三个卡箍，其中三个补偿器间隔安装在导管上，第一补偿器和第二补偿器上分别安装第一拉杆组件和第二拉杆组件，用与对第一补偿器和第二补偿器分别进行固定，所述第一补偿器和第二补偿器之间的导管上安装第一卡箍，所述第二补偿器和第三补偿器之间的导管上安装第二卡箍第三补偿器的另一侧安装第三卡箍，三个卡箍共同作用使导管仅能产生轴向位移，该装置用于运载火箭中长距离宽温区增压导管，解决了长距离宽温区增压导管的温度补偿和装配补偿的问题，保证了导管在火箭飞行过程中的安全性和可靠性。
The invention relates to a long-distance and wide-temperature conduit compensation device, which includes three compensators, two pull rod assemblies and three clips, wherein the three compensators are installed on the conduit at intervals, and the first compensator and the second compensator are respectively Install the first pull rod assembly and the second pull rod assembly to fix the first compensator and the second compensator respectively, install the first clamp on the conduit between the first compensator and the second compensator, and The second clamp is installed on the conduit between the second compensator and the third compensator, and the third clamp is installed on the other side of the third compensator. The three clamps work together to make the conduit only produce axial displacement. The device is used for medium-long-distance and wide-temperature zone pressurized conduits of launch vehicles, which solves the problems of temperature compensation and assembly compensation for long-distance wide-temperature zone pressurized conduits, and ensures the safety and reliability of the conduits during rocket flight.
Description
技术领域technical field
本发明涉及长距离宽温区导管补偿装置，属于运载火箭增压输送系统中长距离宽温区导管的补偿技术领域。The invention relates to a compensation device for a long-distance and wide-temperature-zone conduit, and belongs to the technical field of compensation for long-distance and wide-temperature-zone conduits in a booster delivery system of a launch vehicle.
背景技术Background technique
目前我国长征七号运载火箭是采用液氧煤油的一种新型无污染火箭，其增压方案首次采用常温氦气加温增压极大的提高了增压能力，同时采用3.35m大容积的贮箱结构大大增加了推进剂贮存量，此种方案对火箭增压输送系统导管提出了更高的要求，液氧贮箱侧壁增压导管不仅要承受贮箱在低温加注过程中的低温收缩变形同时还应承受火箭飞行过程中的高温气体增压对导管产生的膨胀拉伸变形，且由于贮箱为薄壁结构外壁无法设置限位装置将长距离导管进行分段来补偿，十几米的增压导管要同时承受低温（80K）贮箱变形和高温（620K）导管自身变形，此种情况在我国在飞型号中从未遇到，一旦导管在如此大变形中出现故障，将导致整个增压输送系统工作失效，最终导致飞行任务失败，因此急需对此类导管开展补偿设计研究。At present, my country's Long March 7 carrier rocket is a new type of non-polluting rocket using liquid oxygen and kerosene. The tank structure greatly increases the storage capacity of the propellant. This scheme puts forward higher requirements on the conduit of the rocket pressurization delivery system. The pressurization conduit on the side wall of the liquid oxygen storage tank not only has to withstand the low-temperature shrinkage of the storage tank during the low-temperature filling process. At the same time, the deformation should also withstand the expansion and stretching deformation of the conduit caused by the high-temperature gas pressurization during the rocket flight, and because the outer wall of the storage tank is a thin-walled structure, it is impossible to set a limit device to segment the long-distance conduit to compensate. The pressurized duct has to bear the deformation of the low temperature (80K) storage tank and the deformation of the high temperature (620K) duct at the same time. This situation has never been encountered in our country's aircraft models. Once the duct fails in such a large deformation, it will cause the entire booster to Therefore, it is urgent to carry out compensation design research on this kind of catheter.
发明内容Contents of the invention
本发明的目的在于克服现有技术的上述不足，提供长距离宽温区导管补偿装置，该装置用于运载火箭中长距离宽温区增压导管，解决了长距离宽温区增压导管的温度补偿和装配补偿的问题，保证了导管在火箭飞行过程中的安全性和可靠性。The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a long-distance wide-temperature zone conduit compensation device, which is used for medium-long-distance wide-temperature zone pressurized conduits of launch vehicles, and solves the problem of long-distance wide-temperature zone pressurized conduits. The problems of temperature compensation and assembly compensation ensure the safety and reliability of the tube during rocket flight.
本发明的上述目的主要是通过如下技术方案予以实现的：Above-mentioned purpose of the present invention is mainly achieved through the following technical solutions:
长距离宽温区导管补偿装置，包括三个补偿器、两个拉杆组件和三个卡箍，其中三个补偿器间隔安装在导管上，第一补偿器和第二补偿器上分别安装第一拉杆组件和第二拉杆组件，用与对第一补偿器和第二补偿器分别进行固定，所述第一补偿器和第二补偿器之间的导管上安装第一卡箍，所述第二补偿器和第三补偿器之间的导管上安装第二卡箍第三补偿器的另一侧安装第三卡箍，所述三个卡箍共同作用使导管仅能产生轴向位移。Long-distance and wide-temperature zone conduit compensation device, including three compensators, two pull rod assemblies and three clamps, in which the three compensators are installed on the conduit at intervals, and the first compensator and the second compensator are respectively installed with the first The tie rod assembly and the second tie rod assembly are used to respectively fix the first compensator and the second compensator, the first clamp is installed on the conduit between the first compensator and the second compensator, and the second A second hoop is installed on the conduit between the compensator and the third compensator, and a third hoop is installed on the other side of the third compensator, and the three hoops work together so that the conduit can only produce axial displacement.
在上述长距离宽温区导管补偿装置中，每个拉杆组件包括四个拉杆和两个法兰，其中两个法兰分别固定在补偿器两端，每个法兰上对称分布四个通孔，四个拉杆分别穿过四个通孔并拧紧固定。In the above-mentioned long-distance wide-temperature zone conduit compensation device, each tie rod assembly includes four tie rods and two flanges, and the two flanges are respectively fixed at both ends of the compensator, and four through holes are symmetrically distributed on each flange , and the four tie rods respectively pass through the four through holes and are tightened and fixed.
在上述长距离宽温区导管补偿装置中，第二补偿器和第三补偿器之间的距离L1与导管总补偿量M的关系如下:In the above-mentioned long-distance and wide-temperature zone conduit compensation device, the relationship between the distance L1 between the second compensator and the third compensator and the total compensation amount M of the conduit is as follows:
L1=3/M+N+L2 L 1 =3/M+N+L 2
其中：N为补偿器的最大预拉伸量，取值为9/M～6/M；Among them: N is the maximum pre-stretching amount of the compensator, and the value is 9/M~6/M;
L2为第二卡箍的宽度。L 2 is the width of the second clamp.
在上述长距离宽温区导管补偿装置中，第一补偿器和第二补偿器之间的距离L3与导管总补偿量M的关系如下:In the long-distance and wide-temperature zone conduit compensation device described above, the relationship between the distance L3 between the first compensator and the second compensator and the total compensation amount M of the conduit is as follows:
L3=3/M×2+N×2+L4 L 3 =3/M×2+N×2+L 4
其中：N为补偿器的最大预拉伸量，取值为9/M～6/M；Among them: N is the maximum pre-stretching amount of the compensator, and the value is 9/M~6/M;
L4为第一卡箍的宽度。L 4 is the width of the first clip.
在上述长距离宽温区导管补偿装置中，第一卡箍位于第一补偿器和第二补偿器之间的中间位置，第二卡箍位于第二补偿器和第三补偿器之间的中间位置。In the above-mentioned long-distance wide-temperature zone conduit compensation device, the first clamp is located in the middle between the first compensator and the second compensator, and the second clamp is located in the middle between the second compensator and the third compensator Location.
在上述长距离宽温区导管补偿装置中，第三卡箍与第三补偿器之间的距离保证第三补偿器工作状态中不接触第三卡箍。In the above-mentioned long-distance wide-temperature range conduit compensation device, the distance between the third clamp and the third compensator ensures that the third compensator does not contact the third clamp in the working state.
本发明与现有技术相比具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
（1）、本发明设计了一种全新的长距离宽温区增压导管补偿装置，补偿装置由三个补偿器、两个拉杆组件和三个卡箍组成，根据导管补偿量要求对三个补偿器之间的距离，卡箍的位置进行了优化设计，解决了火箭长距离宽温区导管的大补偿量需求，解决了长距离宽温区增压导管的温度补偿和装配补偿的问题，保证了导管在火箭飞行过程中的安全性和可靠性。(1) The present invention designs a brand-new long-distance and wide-temperature zone pressurized conduit compensation device. The compensation device is composed of three compensators, two tie rod assemblies and three clips. According to the requirements of the conduit compensation amount, the three The distance between the compensators and the position of the clamps have been optimized to solve the demand for a large amount of compensation for the rocket’s long-distance and wide-temperature zone conduit, and solve the problem of temperature compensation and assembly compensation for the long-distance and wide-temperature zone pressurized conduit. The safety and reliability of the catheter during rocket flight are guaranteed.
（2）、本发明长距离宽温区增压导管补偿装置，为防止多个补偿器在飞行振动工况下发生失稳，在两两补偿器之间设置卡箍支撑，在其中2个补偿器上设置拉杆结构，提高了补偿器的刚度；(2) In order to prevent multiple compensators from destabilizing under flight vibration conditions, the long-distance and wide-temperature region pressurized conduit compensation device of the present invention is provided with clamp supports between two compensators, and two of them are compensators The tie rod structure is set on the compensator, which improves the rigidity of the compensator;
（3）、本发明补偿装置结构简单，组装方便，可靠性高，具有较强的实用性。(3) The compensation device of the present invention has simple structure, convenient assembly, high reliability and strong practicability.
附图说明Description of drawings
图1为本发明长距离宽温区增压导管补偿装置结构示意图；Fig. 1 is a schematic diagram of the structure of the long-distance and wide-temperature zone pressurized conduit compensation device of the present invention;
图2为本发明拉杆组件结构示意图；Fig. 2 is a structural schematic diagram of the tie rod assembly of the present invention;
图3为本发明拉杆组件中法兰结构示意图。Fig. 3 is a schematic diagram of the flange structure in the tie rod assembly of the present invention.
具体实施方式detailed description
下面结合附图和具体实施例对本发明作进一步详细的描述：Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
如图1所示为本发明长距离宽温区增压导管补偿装置结构示意图，该导管补偿装置包括三个补偿器、两个拉杆组件和三个卡箍，其中三个补偿器间隔焊接在导管1上，第一补偿器2和第二补偿器3上分别安装第一拉杆组件4和第二拉杆组件5，用于对第一补偿器2和第二补偿器3分别进行固定，第一补偿器2和第二补偿器3之间的导管1上安装第一卡箍6，第二补偿器3和第三补偿器7之间的导管1上安装第二卡箍8，第三补偿器7的另一侧安装第三卡箍9，三个卡箍共同作用使导管4仅能产生轴向位移，三个卡箍套装在导管1的外表面并通过螺钉拧紧固定，其中第一卡箍6位于第一补偿器2和第二补偿器3之间的中间位置，第二卡箍8位于第二补偿器3和第三补偿器7之间的中间位置。As shown in Figure 1, it is a schematic diagram of the structure of the long-distance and wide-temperature zone pressurized conduit compensation device of the present invention. The conduit compensation device includes three compensators, two tie rod assemblies and three clamps, and the three compensators are welded on the conduit at intervals. 1, the first pull rod assembly 4 and the second pull rod assembly 5 are respectively installed on the first compensator 2 and the second compensator 3, which are used to respectively fix the first compensator 2 and the second compensator 3, and the first compensator The first clamp 6 is installed on the conduit 1 between the second compensator 2 and the second compensator 3, the second clamp 8 is installed on the conduit 1 between the second compensator 3 and the third compensator 7, and the third compensator 7 The third clamp 9 is installed on the other side of the tube, and the three clamps work together to make the conduit 4 only produce axial displacement. The three clamps are sleeved on the outer surface of the conduit 1 and fixed by screwing, wherein the first clamp 6 Located in the middle position between the first compensator 2 and the second compensator 3 , the second clamp 8 is located in the middle position between the second compensator 3 and the third compensator 7 .
如图2所示为本发明拉杆组件结构示意图，图3所示为本发明拉杆组件中法兰结构示意图。由图可知每个拉杆组件包括四个拉杆10和两个法兰11，其中两个法兰11分别固定在补偿器两端，每个法兰上11对称分布四个通孔，四个拉杆10分别穿过四个通孔并拧紧固定。FIG. 2 is a schematic diagram of the structure of the tie rod assembly of the present invention, and FIG. 3 is a schematic diagram of the structure of the flange in the tie rod assembly of the present invention. It can be seen from the figure that each tie rod assembly includes four tie rods 10 and two flanges 11, wherein the two flanges 11 are respectively fixed at both ends of the compensator, and four through holes are symmetrically distributed on each flange 11, and the four tie rods 10 Pass through the four through holes respectively and tighten to fix.
第二补偿器3和第三补偿器7之间的距离L1设计过程中考虑第三补偿器7最大拉伸时刻不与第二卡箍8碰触，第三补偿器7最大压缩时，第二补偿器3不与第二卡箍8碰触，设总压缩补偿量为M，第三补偿器7分配的补偿量为3/M，三个补偿器的最大预拉伸量N在9/M～6/M之间，第二卡箍8的宽度为L2,则：The distance L1 between the second compensator 3 and the third compensator 7 is considered in the design process that the third compensator 7 does not touch the second clamp 8 at the moment of maximum stretching, and when the third compensator 7 is compressed at the maximum, the first The second compensator 3 does not touch the second clamp 8, the total compression compensation amount is M, the compensation amount distributed by the third compensator 7 is 3/M, and the maximum pre-stretching amount N of the three compensators is 9/ Between M～6/M, the width of the second clamp 8 is L 2 , then:
第二补偿器3和第三补偿器7之间的距离L1与导管1总补偿量M的关系如下:The relationship between the distance L1 between the second compensator 3 and the third compensator 7 and the total compensation amount M of the conduit 1 is as follows:
L1=3/M+N+L2。L 1 =3/M+N+L 2 .
第一补偿器2和第二补偿器3之间的距离L3设计过程中考虑第二补偿器3和第三补偿器7均处于最大拉伸状态时，第二补偿器3不与第一卡箍6碰触，同时第二补偿器3和第三补偿器7处于最大压缩状态时，第一补偿器2不与第一卡箍6碰触，设总压缩补偿量为M，第二补偿器3和第三补偿器7分配的补偿量均为3/M，三个补偿器最大预拉伸量N在9/M～6/M之间，第一卡箍6的宽度为L4，则：The distance L3 between the first compensator 2 and the second compensator 3 is considered in the design process when the second compensator 3 and the third compensator 7 are both in the maximum tension state, and the second compensator 3 is not in contact with the first card When the hoop 6 touches and the second compensator 3 and the third compensator 7 are in the maximum compression state, the first compensator 2 does not touch the first hoop 6, and the total compression compensation amount is M, and the second compensator 3 and the compensation amount distributed by the third compensator 7 are both 3/M, the maximum pre-stretching amount N of the three compensators is between 9/M and 6/M, and the width of the first clamp 6 is L 4 , then :
第一补偿器2和第二补偿器3之间的距离L3与导管1总补偿量M的关系如下:The relationship between the distance L3 between the first compensator 2 and the second compensator 3 and the total compensation amount M of the conduit 1 is as follows:
L3=3/M×2+N×2+L4。L 3 =3/M×2+N×2+L 4 .
第三卡箍9与第三补偿器7之间的距离保证第三补偿器7工作状态中不接触第三卡箍9，即对第三补偿器7进行限位。The distance between the third clamp 9 and the third compensator 7 ensures that the third compensator 7 does not contact the third clamp 9 in the working state, that is, the third compensator 7 is limited.
火箭飞行阶段主要计算高温工况下导管自身的变形量及与其相关的贮箱、壳段变形。根据火箭全寿命周期的导管总的变形量开展补偿器设计，对导管在火箭全寿命周期内所经历的工况进行逐个分析计算，主要包括：总装阶段、总装测试、推进剂加注、射前增压和火箭飞行。The rocket flight phase mainly calculates the deformation of the duct itself and the deformation of the tank and shell section related to it under high temperature conditions. The design of the compensator is carried out according to the total deformation of the guide tube in the whole life cycle of the rocket, and the working conditions experienced by the guide tube in the whole life cycle of the rocket are analyzed and calculated one by one, mainly including: final assembly stage, final assembly test, propellant filling, pre-launch Supercharge and rocket flight.
导管1的总补偿量M与如下几个方面有关：The total compensation M of catheter 1 is related to the following aspects:
一、总装阶段，主要确定与此导管相关的贮箱、壳段由于制造公差所引起的导管补偿量。计算导管装配过程中导管的轴向偏差和角度偏差；轴向偏差为制造公差的代数和，总角度偏差α的计算公式为：1. In the final assembly stage, mainly determine the compensation amount of the conduit caused by the manufacturing tolerance of the storage tank and shell section related to the conduit. Calculate the axial deviation and angular deviation of the catheter during the catheter assembly process; the axial deviation is the algebraic sum of manufacturing tolerances, and the calculation formula for the total angular deviation α is:
式中：In the formula:
α——总角度偏差；α—total angle deviation;
a——管法兰与管路轴线垂直度偏差；a—the vertical deviation between the pipe flange and the pipeline axis;
b——箱体壳段对接面平行度偏差；b——parallelism deviation of the butt joint surface of the box shell section;
c——箱体、壳段端面垂直度偏差；c——Deviation of the verticality of the end face of the box body and shell section;
d1——箭体外径；d1——the outer diameter of the arrow;
d2——导管外径；d2——catheter outer diameter;
β——法兰角度偏差；β——flange angle deviation;
N——法兰数量；N—number of flanges;
二、总装测试阶段和射前增压阶段主要是考虑充气压力引起的导管变形量u，按照如下公式计算：2. The final assembly test stage and the pre-injection pressurization stage mainly consider the catheter deformation u caused by the inflation pressure, which is calculated according to the following formula:
式中：In the formula:
u为内压引起的导管变形量；u is the amount of catheter deformation caused by internal pressure;
F为导管内压；F is the internal pressure of the catheter;
A为导管截面积；A is the cross-sectional area of the conduit;
三、推进剂加注阶段，需考虑内压引起的导管变形u，采用式（2）进行计算，同时还需考虑低温推进剂加注后贮箱轴向变形，此变形量为导管需补偿的收缩变形量，若导管内为低温环境还需要考虑低温环境下导管自身的收缩，按照公式进行计算由温度引起的导管变形量ΔL：3. In the stage of propellant filling, it is necessary to consider the deformation u of the conduit caused by the internal pressure, and use formula (2) for calculation. At the same time, it is also necessary to consider the axial deformation of the storage tank after low-temperature propellant filling. This deformation is the amount that the conduit needs to compensate Shrinkage deformation. If the catheter is in a low temperature environment, the shrinkage of the catheter itself in the low temperature environment needs to be considered. Calculate the catheter deformation ΔL caused by temperature according to the formula:
ΔL=βLΔt（3）ΔL=βLΔt (3)
式中：In the formula:
β——管路平均线膨胀系数；β - the average linear expansion coefficient of the pipeline;
Δt——高、低温环境与常温之间的差值；Δt——the difference between high and low temperature environment and normal temperature;
L——管路沿箭体轴向的长度。L——The length of the pipeline along the axial direction of the rocket body.
四、火箭飞行阶段，主要考虑导管在高温气体作用下自身的变形量，该部分变形量按照式（3）计算，同时还需考虑与导管相关的贮箱在飞行过程过载、轴压和环境温度下的变形量。4. During the flight stage of the rocket, the deformation of the conduit itself under the action of high-temperature gas is mainly considered. The deformation of this part is calculated according to formula (3). At the same time, the overload, axial pressure and ambient temperature of the storage tank related to the conduit during flight must also be considered. The amount of deformation below.
根据上述各工况下的导管变形量，获得导管在火箭全寿命周期内所需要的总的补偿量，此补偿量相比在飞型号较大，传统的单个补偿器无法实现补偿功能，本发明中采用3个补偿器串联的方案对长距离宽温区导管进行补偿，两两补偿器中间为一段硬管，硬管中心位置设置一个卡箍支撑，同时在其中连续的2补偿器上设置拉杆装置增强补偿器的刚度。According to the amount of deformation of the conduit under the above-mentioned working conditions, the total compensation amount required by the conduit during the entire life cycle of the rocket is obtained. This compensation amount is larger than that of the in-flight model, and the traditional single compensator cannot realize the compensation function. The present invention The scheme of 3 compensators in series is used to compensate the long-distance and wide-temperature zone conduits. There is a section of hard pipe in the middle of the two compensators, and a clamp support is set at the center of the hard pipe. At the same time, a tie rod is set on the continuous 2 compensators. The device enhances the stiffness of the compensator.
以上所述，仅为本发明最佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。The above description is only the best specific implementation mode of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or modifications within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention.
本发明说明书中未作详细描述的内容属于本领域专业技术人员的公知技术。The content that is not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.
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