CN109325256A - One second level connect segment construction design method of offset placed load boosting uniform force - Google Patents
One second level connect segment construction design method of offset placed load boosting uniform force Download PDFInfo
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Abstract
One second level connect segment construction design method of offset placed load boosting uniform force of the invention, first using solid element to energy optimization design region full packing in structure envelope, obtain the basic Path of Force Transfer of structure, material characteristic distributions and manufacturing process and clipping room then in conjunction with physical model optimum results establish the initial model of shell model topological optimization away from equal requirements, apply the constraint of boosting uniform force in the optimization process to shell model；Frame purlin structural model is established with reference to the optimum results of shell model later and is carried out further dimensionally-optimised；Reinforcement shell model is established according to requirements such as dimensionally-optimised results and manufacturing process later, and progress is further dimensionally-optimised, and finally optimum results are carried out with the analysis of other operating conditions, determines that structure simulation analysis result is able to satisfy Structural Design Requirement.
Description
Technical field
The present invention relates to binding one second level connect segment structure of carrier rocket designs, and in particular to a kind of offset placed load boosting
One second level connect segment construction design method of uniform force.
Background technique
Boost motor is widely used in modern carrier rocket as one of the important means of rocket carrying capacity is improved.Cause
Boost motor and core grade, which exist, to be bundled, and the structure for bearing offset placed load is certainly existed.If the structure design not enough optimization of nose cone, partially
The effect for setting load is passed to boost motor, leads to the interior outside unbalance stress of boost motor, the modularized design to boost motor
It brings inconvenience.Therefore it needs to optimize a second level connect segment.
The design method of a second level connect segment structure is usually first to be adopted according to load, intensity and rigidity requirement at this stage
Structural configuration, size are directly determined with Engineering Algorithm, finally carries out simulation analysis again, based on the analysis results adjusted design parameter,
Realize iteration optimization.This design cycle rocket structure implementation result more uniform for bay section power transmission is preferable, but for inclined
The structure cabin set under load effect is then unable to reach Optimal Structure Designing.
Summary of the invention
The purpose of the present invention is to provide a kind of designs of a second level connect segment structure of offset placed load boosting uniform force
Method, the second level connect segment structure for obtaining also making boosting keep uniform force in the case where offset placed load acts on.
To achieve the above object, the present invention provides an a kind of second level connect segment of offset placed load boosting uniform force
Construction design method, comprising: 1) according to input condition, determine external envelope and operating condition in a second level connect segment structure；2) it determines
Energy optimization design region in structure envelope is filled the optimization design region using solid element, physical model is obtained, using change
The maximum rigidity topological optimization of density optimization method progress physical model；3) structure is determined according to physical model topological optimization result
Basic Path of Force Transfer, the material characteristic distributions of reference entity model topology optimum results take out shell model；4) first to shell mold
Optimization design region is filled using shell unit in type, and the maximum rigidity topology for reapplying variable density optimization method progress shell model is excellent
Change, the constraint for applying boosting uniform force is considered in optimization；5) the careful biography of structure is determined according to shell model topological optimization result
Power path takes out frame purlin structure with reference to the material characteristic distributions of shell model topological optimization result；6) ruler is carried out to frame purlin structure
Very little optimization obtains frame purlin structure optimal size model, applies the constraint and displacement constraint of boosting uniform force in optimization；7) in frame
On the basis of the structure optimal size model of purlin, according to technique and fabricating tools equipment requirement, incorporation engineering algorithm and structure simulation, really
Determine structural frames spacing, establishes reinforcement shell model；8) dimensionally-optimised, the second level interconnecting piece optimized is carried out to reinforcement shell model
Segment structure model applies the constraint and displacement constraint of boosting uniform force in optimization.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the step 2)
In, if the material characteristic distributions of physical model topological optimization result are unobvious, adjusting and optimizing model repeats step 2), until
The material characteristic distributions of obtained physical model topological optimization result are obvious.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the step 3)
It further include that the shell model taken out is adjusted according to the separation scheme and installation pitch requirements of structure.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the step 4)
In, if the material characteristic distributions of shell model topological optimization result are unobvious, adjusting and optimizing model repeats step 4), until
The material characteristic distributions of the shell model topological optimization result arrived are obvious.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein shell model topology
In optimization, connection structure only retains lateral connection between core grade and nose cone, does not transmit axial force.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the step 6)
With in step 8), dimensionally-optimised target is that model weight minimizes.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the step 4),
In step 6) and step 8), by the way that the Mises stress of one coil unit of tank front end face in permissibl e skew range, is realized boosting
The design requirement of uniform force.
One second level connect segment construction design method of above-mentioned offset placed load boosting uniform force, wherein the design side
Method further include:
9) analysis that multi-state is carried out to the second level connect segment structural model that step 8) obtains, determines structure simulation point
Analysis result is able to satisfy Structural Design Requirement.
Compared with prior art, the method have the benefit that:
The second level connect segment structure that designs through the invention, it can be achieved that boost motor in addition to a second level connect segment
The axially loaded of other sections is uniform, can reduce the quality of boost motor other parts structure design, while can realize and tie between boosting
The module of structure is exchanged.
Detailed description of the invention
One second level connect segment construction design method of offset placed load boosting uniform force of the invention is by implementation below
Example and attached drawing provide.
Fig. 1 is external envelope schematic diagram in a second level connect segment structure in present pre-ferred embodiments.
Fig. 2 is one of physical model topological optimization result schematic diagram in present pre-ferred embodiments.
Fig. 3 is shell model schematic diagram in present pre-ferred embodiments.
Fig. 4 is present pre-ferred embodiments center purlin structural schematic diagram.
Fig. 5 is the second level connect segment structural model schematic diagram optimized in present pre-ferred embodiments.
Specific embodiment
Below with reference to FIG. 1 to FIG. 5 to a second level connect segment structure of offset placed load boosting uniform force of the invention
Design method is described in further detail.
One second level connect segment construction design method of offset placed load boosting uniform force of the invention, by topological optimization skill
Art is applied to the conceptual design and size design of structure, by applying the constraint of uniform force to boosting in optimization process, obtains
Boosting can be also set to keep a second level connect segment structure of uniform force under offset placed load effect.
One second level connect segment construction design method packet of the offset placed load boosting uniform force of present pre-ferred embodiments
It includes:
1) according to input condition, external envelope and most harsh design conditions in a second level connect segment structure are determined；
The input condition includes rocket body installation space demand condition and motor power load-up condition；
Fig. 1 show in present pre-ferred embodiments external envelope schematic diagram in a second level connect segment structure, wherein (a)
It (b) is 1/4 envelope for whole envelope；Referring to Fig. 1, which includes optimization design region envelope 1, changeover portion envelope 2 and part
Boost motor envelope 3, it is contemplated that the symmetry of structure is measured to simplify the calculation, saved the calculating time, this implementation takes 1/4 envelope to carry out
Optimization design, such as (b)；
In the present embodiment, determining operating condition are as follows: changeover portion top is fixed, and each boost motor bottom applies axial load
1000T, it is offset placed load that boost motor institute in outside is loaded under this operating condition；
2) it determines energy optimization design region in structure envelope, which is filled using solid element, is obtained
Physical model carries out the maximum rigidity topological optimization of physical model using variable density optimization method；
In the present embodiment, optimization design region envelope 1 is optimization design region in Fig. 1, which uses
Solid element full packing, obtains physical model；
If the material characteristic distributions of physical model topological optimization result are unobvious, physical model is adjusted, repeats step 2),
Until the material characteristic distributions of obtained physical model topological optimization result are obvious, i.e., ideal entity is obtained by iteration optimization
Model topology optimum results；
Fig. 2 show one of physical model topological optimization result schematic diagram in present pre-ferred embodiments；
The prior art, this implementation can be used using the maximum rigidity topological optimization that variable density optimization method carries out physical model
Example does not elaborate to this optimization process, but this has no effect on the implementation of the present embodiment；
3) the basic Path of Force Transfer of structure, the optimization of reference entity model topology are determined according to physical model topological optimization result
As a result material characteristic distributions take out shell model；Shell model is adjusted away from equal requirements according to the separation scheme of structure and clipping room；
Fig. 3 show shell model schematic diagram in present pre-ferred embodiments, the shell model include changeover portion shell model 2 ', tiltedly
Connection structure design space 6, one coil unit of tank front end face be (i.e. about between nose cone shell model 4, core grade shell model 5, core grade and nose cone
One row's unit of beam Mises stress) 7 and part boost motor shell model 3 '；From the figure 3, it may be seen that in the present embodiment, between core grade and nose cone
Connection structure only retains lateral connection, does not transmit axial force；
4) first optimization design region in shell model is filled using shell unit, reapplies variable density optimization method and carries out shell mold
The maximum rigidity topological optimization of type considers the constraint for applying boosting uniform force in optimization；
The shell model that step 3) obtains, optimization design region (plagiocephaly conical shell model 4, core grade shell model 5, core grade in Fig. 3
Connection structure design space 6, one coil unit 7 of tank front end face between nose cone) it is filled using shell unit, reapply variable density optimization
The maximum rigidity topological optimization of the method progress filled shell model of shell unit；
In the present embodiment, it is constraint one coil unit 7 of tank front end face that boosting uniform force, which constrains applying mode, (referring to Fig. 3)
Mises stress is in 100~110MPa；
If the material characteristic distributions of shell model topological optimization result are unobvious, adjusting and optimizing shell model, step 4) is repeated,
Until the material characteristic distributions of obtained shell model topological optimization result are obvious, i.e., ideal shell model is obtained by iteration optimization
Topological optimization result；
5) the careful Path of Force Transfer that structure is determined according to shell model topological optimization result, with reference to shell model topological optimization result
Material characteristic distributions take out frame purlin structure；
Compared to physical model topological optimization as a result, shell model topological optimization result can obtain more careful Path of Force Transfer；
Basic Path of Force Transfer and careful Path of Force Transfer are for the two is compared；
Fig. 4 show present pre-ferred embodiments center purlin structural schematic diagram, as shown in figure 4, (the ginseng of link design space 6
See Fig. 3) optimization obtains connecting rod 8, and connecting rod 8 being capable of moment of flexure caused by equilibration bias power；
6) dimensionally-optimised to the progress of frame purlin structure, optimization aim is that model weight minimizes, and obtains the optimal ruler of frame purlin structure
Very little model applies the constraint and displacement constraint of boosting uniform force in optimization；
Boosting uniform force constrain applying mode be constraint one coil unit Mises stress of tank front end face 100~
110MPa；
7) it on the basis of the structure optimal size model of frame purlin, is required according to technique and fabricating tools equipment etc., incorporation engineering
Algorithm and structure simulation determine structural frames spacing, establish reinforcement shell model；
8) dimensionally-optimised to the progress of reinforcement shell model, optimization aim is that model weight minimizes, and finally obtains the one of optimization
Second level connect segment structural model applies the constraint and displacement constraint of boosting uniform force in optimization；
Boosting uniform force constrain applying mode be constraint one coil unit Mises stress of tank front end face 100~
110MPa；
Fig. 5 show the second level connect segment structural model schematic diagram optimized in present pre-ferred embodiments；
9) analysis that multi-state is carried out to the second level connect segment structural model that step 8) obtains, determines structure simulation point
Analysis result is able to satisfy Structural Design Requirement.
The present invention acts on second level connect segment structure design and the optimization side of lower boosting uniform force for offset placed load
Method.The basic Path of Force Transfer of structure is obtained, so to energy optimization design region full packing in structure envelope using solid element first
The material characteristic distributions of binding entity model optimization result and manufacturing process and clipping room are established shell model away from equal requirements and are opened up afterwards
The initial model for flutterring optimization applies the constraint of boosting uniform force in the optimization process to shell model；Shell model is referred to later
Optimum results establish frame purlin structural model and carry out further dimensionally-optimised；Later according to dimensionally-optimised result and system
It makes the requirements such as technique and establishes reinforcement shell model, and progress is further dimensionally-optimised, finally carries out other operating conditions to optimum results
Analysis, determine structure simulation analysis result be able to satisfy Structural Design Requirement.
For the verifying of the embodiment of the present invention, a second level connect segment structure Path of Force Transfer that this method design optimization obtains
Rationally, it can be realized the requirement of boosting uniform force.Method of the invention is to bear offset placed load knot for existing carrier rocket
Structure design and the primary necessary supplement of optimization method are perfect, and the constraint of boosting uniform force is achieved in that one kind in the present invention
Simply, effective mode, to realize that similar uniformity requirement provides reference in structure design.
One second level connect segment construction design method of offset placed load boosting uniform force of the invention, can be inclined to bearing
The section structure design for setting load provides guidance, can be widely applied to the spacecraft structure for bearing offset placed load.
Claims (8)
1. a second level connect segment construction design method of offset placed load boosting uniform force characterized by comprising
1) according to input condition, external envelope and operating condition in a second level connect segment structure are determined；
2) it determines energy optimization design region in structure envelope, which is filled using solid element, obtains entity
Model carries out the maximum rigidity topological optimization of physical model using variable density optimization method；
3) the basic Path of Force Transfer of structure, reference entity model topology optimum results are determined according to physical model topological optimization result
Material characteristic distributions take out shell model；
4) first optimization design region in shell model is filled using shell unit, reapplies variable density optimization method and carries out shell model
Maximum rigidity topological optimization considers the constraint for applying boosting uniform force in optimization；
5) the careful Path of Force Transfer that structure is determined according to shell model topological optimization result, with reference to the material of shell model topological optimization result
Material characteristic distributions take out frame purlin structure；
6) dimensionally-optimised to the progress of frame purlin structure, frame purlin structure optimal size model is obtained, applies boosting uniform force in optimization
Constraint and displacement constraint；
7) on the basis of the structure optimal size model of frame purlin, according to technique and fabricating tools equipment requirement, incorporation engineering algorithm and
Structure simulation determines structural frames spacing, establishes reinforcement shell model；
8) dimensionally-optimised, the second level connect segment structural model optimized is carried out to reinforcement shell model, applies in optimization and helps
Push away the constraint and displacement constraint of uniform force.
2. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is, in the step 2), if the material characteristic distributions of physical model topological optimization result are unobvious, and adjusting and optimizing mould
Type repeats step 2), until the material characteristic distributions of obtained physical model topological optimization result are obvious.
3. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is that the step 3) further includes adjusting the shell model taken out according to the separation scheme and installation pitch requirements of structure.
4. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is, in the step 4), if the material characteristic distributions of shell model topological optimization result are unobvious, and adjusting and optimizing model,
Step 4) is repeated, until the material characteristic distributions of obtained shell model topological optimization result are obvious.
5. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is, in shell model topological optimization, connection structure only retains lateral connection between core grade and nose cone, does not transmit axial force.
6. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is, in the step 6) and step 8), dimensionally-optimised target is that model weight minimizes.
7. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, described
In step 4), step 6) and step 8), by by the Mises stress of one coil unit of tank front end face technical requirements deviation model
In enclosing, the design requirement of boosting uniform force is realized.
8. a second level connect segment construction design method of offset placed load boosting uniform force as described in claim 1, special
Sign is, the design method further include:
9) analysis that multi-state is carried out to the second level connect segment structural model that step 8) obtains determines structure simulation analysis knot
Fruit is able to satisfy Structural Design Requirement.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948199A (en) * | 2019-02-28 | 2019-06-28 | 华中科技大学 | A kind of Topology Optimization Method of shell-interstitital texture |
| CN112699477A (en) * | 2020-12-29 | 2021-04-23 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining structure of large-size beam structure under multi-constraint optimization condition |
| CN115408780A (en) * | 2022-11-01 | 2022-11-29 | 北京宇航系统工程研究所 | Core-level arrow body structure design method for directional decoupling of force and moment and core-level arrow body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106650045A (en) * | 2016-12-05 | 2017-05-10 | 大连理工大学 | Optimized design and strength analysis method of secondary box section structure |
| CN106777617A (en) * | 2016-12-05 | 2017-05-31 | 大连理工大学 | A kind of two grades of inter-tank section optimum structure design methods |
| CN107169209A (en) * | 2017-05-19 | 2017-09-15 | 上海宇航系统工程研究所 | A kind of structure design and optimization method biased under concentrated force effect |
-
2018
- 2018-08-16 CN CN201810936623.8A patent/CN109325256B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106650045A (en) * | 2016-12-05 | 2017-05-10 | 大连理工大学 | Optimized design and strength analysis method of secondary box section structure |
| CN106777617A (en) * | 2016-12-05 | 2017-05-31 | 大连理工大学 | A kind of two grades of inter-tank section optimum structure design methods |
| CN107169209A (en) * | 2017-05-19 | 2017-09-15 | 上海宇航系统工程研究所 | A kind of structure design and optimization method biased under concentrated force effect |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948199A (en) * | 2019-02-28 | 2019-06-28 | 华中科技大学 | A kind of Topology Optimization Method of shell-interstitital texture |
| CN112699477A (en) * | 2020-12-29 | 2021-04-23 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining structure of large-size beam structure under multi-constraint optimization condition |
| CN112699477B (en) * | 2020-12-29 | 2024-02-13 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining large-size beam structure configuration under multi-constraint optimization condition |
| CN115408780A (en) * | 2022-11-01 | 2022-11-29 | 北京宇航系统工程研究所 | Core-level arrow body structure design method for directional decoupling of force and moment and core-level arrow body |
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