CN117382918A - Bearing structure based on heterogeneous materials and manufacturing method - Google Patents

Bearing structure based on heterogeneous materials and manufacturing method Download PDF

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Publication number
CN117382918A
CN117382918A CN202311601354.7A CN202311601354A CN117382918A CN 117382918 A CN117382918 A CN 117382918A CN 202311601354 A CN202311601354 A CN 202311601354A CN 117382918 A CN117382918 A CN 117382918A
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China
Prior art keywords
base
modulus
damping
bearing structure
heterogeneous material
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CN202311601354.7A
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Chinese (zh)
Inventor
明宪良
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Beijing Institute of Remote Sensing Equipment
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Beijing Institute of Remote Sensing Equipment
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Priority to CN202311601354.7A priority Critical patent/CN117382918A/en
Publication of CN117382918A publication Critical patent/CN117382918A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Remote Sensing (AREA)
  • Plasma & Fusion (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention belongs to the technical field of aerospace structures, and particularly relates to a bearing structure based on heterogeneous materials and a manufacturing method thereof. A heterogeneous material based load bearing structure includes a high modulus base for mounting a detection system component and a position information measurement system component; the high damping base is sleeved on the outer side of the high modulus base and is used for being connected with a spacecraft; the high damping base is connected with the high modulus base through a physical interlocking structure, and the area where the physical interlocking structure is located is defined as a transition area; in the transition region, the high damping pedestal and the high modulus pedestal nest with one another. The invention breaks through the performance limitation of a single material through the combination application of heterogeneous materials, realizes the multifunctional integrated fusion of light weight, high rigidity, high vibration suppression and the like, and obtains the high-stability structure of the light-weight high-modulus heterogeneous material.

Description

Bearing structure based on heterogeneous materials and manufacturing method
Technical Field
The invention belongs to the technical field of aerospace structures, and particularly relates to a bearing structure based on heterogeneous materials and a manufacturing method thereof.
Background
The contradiction between the precision stability and the light weight and extreme dynamic service environment of the aerospace detection guidance equipment is very outstanding. Most of the existing aerospace structures are mainly made of single material in application mode, for example, the existing aerospace load-bearing structures are basically made of TC4 titanium alloy, and the material is high in elastic modulus and mechanical property, but does not have damping property. Namely, under the conditions of large impact and strong vibration, the existing space bearing structure still can generate larger deformation. But only adopts a single material with higher damping, and at the moment, the material does not have the characteristics of high modulus and high rigidity.
Therefore, the existing aerospace structure is difficult to integrate the functions of light weight, high modulus and high damping.
Disclosure of Invention
The invention aims to provide a bearing structure based on heterogeneous materials and a manufacturing method thereof, aiming at solving the problem that the existing aerospace structure is difficult to simultaneously realize the multifunctional integration of light weight, high modulus and high damping.
In one aspect, the present invention provides a heterogeneous material based load bearing structure comprising
A high modulus base for mounting the detection system component and the position information measurement system component; and
the high damping base is sleeved on the outer side of the high modulus base and is used for being connected with a spacecraft;
the high damping base is connected with the high modulus base through a physical interlocking structure, and the area where the physical interlocking structure is located is defined as a transition area; in the transition region, the high damping pedestal and the high modulus pedestal nest with one another.
Further, the high modulus base is a TC4 titanium alloy base.
Further, a plurality of high damping branch parts and a plurality of high modulus branch parts are arranged in the transition area, all the high damping branch parts are integrally formed with the high damping base, and all the high modulus branch parts are integrally formed with the high modulus base;
all the high damping branch parts are distributed along the circumferential direction of the high damping base at intervals, all the high modulus branch parts are distributed along the circumferential direction of the high modulus base at intervals, and each high modulus branch part is fit in the gap between two high damping branch parts.
Further, the high damping branch and the high modulus branch in the transition region are in physical interlocking arrangement.
Further, the high damping base is a memory alloy base.
Further, the memory alloy base is a Ni-Ti alloy base.
Further, the device also comprises a detection system mounting structure fixedly arranged on the high-modulus base.
Further, the device also comprises a position information measurement system installation structure fixedly arranged on the high-modulus base.
On the other hand, the invention also provides a manufacturing method of the bearing structure based on the heterogeneous material, which is used for manufacturing the bearing structure based on the heterogeneous material and comprises the following steps,
s1, heating a high-damping branch part and enabling a high-damping branch part structure to generate martensitic transformation so as to be transformed into an austenitic phase;
s2, under the condition that the high damping support part structure is in an austenite phase state, applying an external load to the high damping support part, and utilizing the super elasticity of the high damping support part to deform the high damping support part;
s3, under the condition that the high damping support part deforms, assembling the high damping support part and the high modulus support part to form a physical interlocking structure;
s4, reducing the temperature to enable the high-damping branch part structure to return to the martensitic state.
Further, the method also comprises a step S0,
s0, processing the high-modulus support part on the high-modulus base by adopting a laser selective melting forming technology, and processing the high-damping support part on the high-damping base by adopting the laser selective melting forming technology.
The beneficial effects of the invention are as follows:
in order to solve the contradictory problem between the high stability of the structure of the detection guidance equipment and the extreme dynamic service environment, a novel design scheme is required.
The invention provides a bearing structure based on heterogeneous materials (hereinafter referred to as the structure), which breaks through the existing application mode of only adopting single materials and breaks through the application mode of combining high-modulus materials and high-damping materials, so that the bearing structure provided by the invention can simultaneously realize the multifunctional integration of light weight, high modulus and high damping.
According to the performance requirements of all areas in the structure, a high damping base is adopted in a connecting area with severe impact and vibration input, the high damping performance and the dynamics characteristic of the high damping base are utilized to design a bionic micro-configuration composite application method, and the high designability of the high damping base and the micro-structure in the aspects of modulus change, damping change, cross-scale and the like is comprehensively utilized, so that the mode control of different areas can be realized, the vibration reduction purpose is achieved, and the dynamics stability of a transition area is realized; the high modulus base is used in the deformation-resistant mounting area, and the high modulus performance of the high modulus base is utilized to ensure the high rigidity of the structure.
In conclusion, the structure breaks through the performance limitation of a single material through heterogeneous material combination application, realizes the multifunctional integrated fusion of light weight, high rigidity, high vibration suppression and the like, and obtains the high-stability structure of the light-weight high-modulus heterogeneous material. The structure is an ideal technical approach for solving the contradiction problem between the structural accuracy stability of the detection guidance equipment and the extreme dynamic service environment, and can provide support for the improvement of the equipment performance.
Drawings
Fig. 1 is a schematic three-dimensional structure of a heterogeneous material-based carrier structure in this embodiment.
Fig. 2 is a schematic cross-sectional view of a heterogeneous material based carrier structure in this embodiment.
Reference numerals:
1-a high damping base; 2-a high modulus base; 3-a detection system mounting structure; 4-a position information measurement system mounting structure; 5-physical interlocking structure.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
The existing space structure is difficult to simultaneously consider the problem of light weight, high modulus and high damping multifunctional integration, and the embodiment provides a bearing structure based on heterogeneous materials and a manufacturing method.
First, the present embodiment provides a heterogeneous material-based load bearing structure.
As shown in fig. 1 and 2, the heterogeneous material-based load bearing structure provided in this embodiment includes a high modulus base 2, a high damping base 1, a physical interlocking structure 5, a detection system mounting structure 3, and a positional information measurement system mounting structure 4.
Wherein, high damping base 1 cover is established in high modulus base 2 outside, and high damping base 1 links to each other with high modulus base 2 through physical interlocking structure 5. Defining the region in which the physical interlocking structure 5 is located as a transition region; in the transition region, the high damping mount 1 and the high modulus mount 2 are nested with each other.
In the embodiment, a plurality of high damping branch parts and a plurality of high modulus branch parts are arranged in the transition area, all the high damping branch parts are integrally formed with the high damping base 1, and all the high modulus branch parts are integrally formed with the high modulus base 2; all the high damping branch parts are distributed along the circumferential direction of the high damping base 1 at intervals, all the high modulus branch parts are distributed along the circumferential direction of the high modulus base 2 at intervals, and each high modulus branch part is fit in the gap between the two high damping branch parts.
Furthermore, the high damping branch and the high modulus branch in the transition region may be physically interlocked to further enhance the damping function of the structure.
In the present embodiment, the high damping base 1 is used for connection with a spacecraft, and the high damping base 1 is a main bearing area of the heterogeneous material-based bearing structure provided in the present embodiment. The high damping mount 1 is also a dynamic load input region for strong vibration, impact, etc. Preferably, the high damping base 1 may be of a circular ring-like structure.
In this embodiment, the high damping base 1 is preferably made of a memory alloy material, and more specifically, the high damping base 1 may be made of a ni—ti alloy material with high damping characteristics, so that the structure of the high damping base 1 can have advantages such as high vibration resistance and mechanical strength. Furthermore, the bearing structure based on the heterogeneous material provided by the embodiment can be guaranteed to have good shock resistance and stability under strong vibration and impact, and the bearing structure based on the heterogeneous material provided by the embodiment can be guaranteed to have high strength so as to ensure that the structure is not damaged under the strong vibration and impact environment.
In this embodiment, the high modulus base 2 has a very high structural stability requirement and is mainly used for supporting the detection system mounting structure 3 and the position information measuring system mounting structure 4. In this embodiment, the high modulus base 2 is preferably a high modulus TC4 titanium alloy, and uses its high modulus property to achieve high rigidity of the structure, so that the high modulus base 2 has better deformation resistance.
In this embodiment, the detection system mounting structure 3 and the position information measurement system mounting structure 4 are disposed on the high modulus base 2, and are mainly used for implementing photoelectric detection and guidance functions, and have extremely high requirements on structural stability. Preferably, the detection system mounting structure 3 and the position information measuring system mounting structure 4 may also employ TC4 titanium alloy.
In this embodiment, in order to ensure structural stability, a laser selective melting forming technology may be used to integrally form the three parts of the detection system mounting structure 3 of the high-modulus TC4 titanium alloy, the position information measurement system mounting structure 4 of the high-modulus TC4 titanium alloy, and the high-modulus base 2.
In this embodiment, the essence of the physical interlocking structure 5 is a local area formed by physical interlocking micro-configuration, and the main purpose is to form a transition area of dissimilar materials, so that on one hand, the discrete design of interface stress is realized, on the other hand, the integrated connection of two material structures is realized, and the rigidity of the whole structure is improved. Preferably, the height of the high damping branch and the height of the high modulus branch may each be 3mm to 4mm.
In the physical interlocking structure 5, the high-modulus support part on the high-modulus base 2 can be processed by adopting a laser selective melting forming technology, and the high-damping support part on the high-damping base 1 can be processed by adopting the laser selective melting forming technology.
When the high damping base 1 is in operation, the high damping base 1 is used as a main bearing member of the whole structure and is a vibration and impact load input position, and the characteristics of high damping and high strength of the Ni-Ti alloy material are utilized, so that the vibration response magnitude can be reduced, and the requirements of high vibration suppression and high mechanical property of the whole structure are met; the high modulus base 2 is arranged inside the Ni-Ti titanium alloy base, and mainly serves to support the detection system mounting structure 3 and the position information measurement system mounting structure 4, and the structural rigidity requirement is extremely high. By adopting the high-modulus TC4 titanium alloy and utilizing the high-modulus characteristic thereof, the high rigidity of the structure is realized, and the high-modulus TC4 titanium alloy has better deformation resistance.
That is, the carrying structure based on heterogeneous materials provided by the embodiment breaks the performance limitation of a single material through heterogeneous material combination application, realizes the multifunctional integration of light weight, high rigidity, high vibration suppression and the like, obtains a light weight high-modulus heterogeneous material high-stability structure, and is an ideal technical approach for solving the contradiction problem between the structural precision stability of the detection guidance equipment and the extreme dynamic service environment.
Secondly, the embodiment also provides a manufacturing method of the bearing structure based on heterogeneous materials, which is characterized in that: the method for manufacturing the heterogeneous material-based bearing structure comprises the following steps,
s0, processing a high-modulus support part on the high-modulus base 2 by adopting a laser selective melting forming technology, processing a high-damping support part on the high-damping base 1 by adopting a laser selective melting forming technology, and integrally forming three parts of the detection system mounting structure 3, the position information measuring system mounting structure 4 and the high-modulus base 2 by adopting the laser selective melting forming technology.
The high damping base 1 and the high damping support part are both made of Ni-Ti titanium alloy, and the detection system mounting structure 3, the position information measurement system mounting structure 4, the high modulus support part and the high modulus base 2 are both made of TC4 titanium alloy.
S1, heating the high damping branch part and enabling the high damping branch part structure to generate martensitic transformation so as to be transformed into austenitic phase.
S2, when the high-damping branch part structure is in an austenite phase state, an external load is applied to the high-damping branch part, and the high-damping branch part is deformed by utilizing the superelasticity of the external load.
And S3, under the condition that the high damping branch part deforms, assembling the high damping branch part and the high modulus branch part to form a physical interlocking structure.
S4, reducing the temperature to enable the high-damping branch part structure to return to the martensitic state, and finishing the processing of the bearing structure based on the heterogeneous material.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. A heterogeneous material based load bearing structure characterized by: comprising
A high modulus base for mounting the detection system component and the position information measurement system component; and
the high damping base is sleeved on the outer side of the high modulus base and is used for being connected with a spacecraft;
the high damping base is connected with the high modulus base through a physical interlocking structure, and the area where the physical interlocking structure is located is defined as a transition area; in the transition region, the high damping pedestal and the high modulus pedestal nest with one another.
2. The heterogeneous material based load bearing structure of claim 1, wherein: the high modulus base is a TC4 titanium alloy base.
3. The heterogeneous material based load bearing structure according to claim 1 or 2, wherein: a plurality of high damping branch parts and a plurality of high modulus branch parts are arranged in the transition area, all the high damping branch parts are integrally formed with the high damping base, and all the high modulus branch parts are integrally formed with the high modulus base;
all the high damping branch parts are distributed along the circumferential direction of the high damping base at intervals, all the high modulus branch parts are distributed along the circumferential direction of the high modulus base at intervals, and each high modulus branch part is fit in the gap between two high damping branch parts.
4. A heterogeneous material based load bearing structure according to claim 3, wherein: the high damping branch and the high modulus branch in the transition region are in physical interlocking arrangement.
5. The heterogeneous material based load bearing structure of claim 4, wherein: the high damping base is a memory alloy base.
6. The heterogeneous material based load bearing structure of claim 5, wherein: the memory alloy base is a Ni-Ti alloy base.
7. The heterogeneous material based load bearing structure of any one of claims 1, 2, 4 or 6, wherein: the device also comprises a detection system mounting structure fixedly arranged on the high-modulus base.
8. The heterogeneous material based load bearing structure of any one of claims 1, 2, 4 or 6, wherein: the device also comprises a position information measurement system mounting structure fixedly arranged on the high-modulus base.
9. A method of manufacturing a heterogeneous material based load bearing structure, characterized by: for manufacturing a heterogeneous material based load bearing structure according to claim 5 or 6, comprising the steps of,
s1, heating a high-damping branch part and enabling a high-damping branch part structure to generate martensitic transformation so as to be transformed into an austenitic phase;
s2, under the condition that the high damping support part structure is in an austenite phase state, applying an external load to the high damping support part, and utilizing the super elasticity of the high damping support part to deform the high damping support part;
s3, under the condition that the high damping support part deforms, assembling the high damping support part and the high modulus support part to form a physical interlocking structure;
s4, reducing the temperature to enable the high-damping branch part structure to return to the martensitic state.
10. The method of manufacturing a heterogeneous material based load bearing structure according to claim 9, wherein: also included is a step S0 of,
s0, processing the high-modulus support part on the high-modulus base by adopting a laser selective melting forming technology, and processing the high-damping support part on the high-damping base by adopting the laser selective melting forming technology.
CN202311601354.7A 2023-11-28 2023-11-28 Bearing structure based on heterogeneous materials and manufacturing method Pending CN117382918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311601354.7A CN117382918A (en) 2023-11-28 2023-11-28 Bearing structure based on heterogeneous materials and manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311601354.7A CN117382918A (en) 2023-11-28 2023-11-28 Bearing structure based on heterogeneous materials and manufacturing method

Publications (1)

Publication Number Publication Date
CN117382918A true CN117382918A (en) 2024-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311601354.7A Pending CN117382918A (en) 2023-11-28 2023-11-28 Bearing structure based on heterogeneous materials and manufacturing method

Country Status (1)

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CN (1) CN117382918A (en)

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