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第一届中国(国际)航空增材制造结构优化设计大赛

China (International) Aviation Additive Manufacturing Structure Optimization Design Competition

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一、大赛简述

第一届中国(国际)航空增材制造结构优化设计大赛是由中国航发商用航空发动机有限责任公司和上海市增材制造协会共同发起主办,联合行业科研机构、高校、知名企业共同举办,旨在以大赛为纽带,汇聚创意设计灵感、强化产学研用深度融合、探索3D打印优化设计方法、推动3D打印技术在航空发动机领域的成熟应用。大赛秉承“开放、融合、特色、深度”的理念,面向全球征集作品,让中国的参赛选手走出去、国际选手走进来,实现同台竞技、创意灵感碰撞、学术交流和文化交融。

二、大赛组织

主办单位:

中国航发商用航空发动机有限责任公司

 

上海市增材制造协会

联合主办:

同济大学

 

新乡航空工业(集团)有限公司

 

中航迈特粉冶科技(北京)有限公司

 

西安铂力特增材技术股份有限公司

 

安世亚太科技股份有限公司

 

上海增材制造制造业创新中心

 

上海市增材制造研究院

承办单位:

上海渥讯智能科技发展有限公司

三、大赛组委会与评审委员会

1.大赛组委会

组委会主任:

吴鑫华

澳大利亚技术科学与工程院院士、蒙纳士大学教授

张   渝

中国航发上海商用航空发动机制造有限责任公司总经理

 

组委会副主任:

曾绍连

上海市增材制造协会秘书长

雷力明

中国航发上海商用航空发动机制造有限责任公司副总工程师

 

2.大赛评审委员会

评审委员会主席:

吴鑫华

澳大利亚技术科学与工程院院士、蒙纳士大学教授

张   渝

中国航发上海商用航空发动机制造有限责任公司总经理

 

评审委员会委员:

严   彪

同济大学教授、上海增材制造制造业创新中心主任

廖文和

南京理工大学副校长

黄卫东

西北工业大学教授

顾冬冬

南京航空航天大学教授

黄爱军

蒙纳士增材制造中心副主任

薛   蕾

西安铂力特增材技术股份有限公司董事长兼总经理

高正江

中航迈特粉冶科技(北京)有限公司总经理

包刚强

安世亚太科技股份有限公司高级咨询专家

李   瑞

新乡航空工业(集团)有限公司结构设计专家

雷力明

中国航发上海商用航空发动机制造有限责任公司副总工程师

王   军 中国航发商用航空发动机有限责任公司副主任设计师

 

四、参赛对象&报名方式

1.报名对象:

国内外科研机构工作者、工业企业结构设计师、高校师生、创客、极客、其他3D打印从业者等。

2.参赛队伍:

参赛团队由1-3人组成。

3.报名方式:

将“参赛报名表”和“知识产权保护承诺书” Email to: services@samafb.org 。

“参赛报名表”和“知识产权保护承诺书”获取方式如下:

方式一:下载链接:

报名表http://www.samafb.org/2019/0814/425.html

知识产权保护承诺书http://www.samafb.org/2019/0814/426.html

方式二:直接发邮件至services@samafb.org索取,邮件主题请写:索取参赛资料。

如何下载“设计对象的初始模型”文件?

百度网盘下载

链接:https://pan.baidu.com/s/1eM9GDUr6LELJdnXFrE0OrA

提取码:报名后联系组委会获取。

4.报名截止日期:2019年10月31日

5.作品提交截止日期:2020年01月31日

6.作品评审:2020年2月-3月31日

7.结果公布及颁奖仪式:2020年4月-5月

 

五、参赛主题&作品提交

1.参赛主题:换热器类构件基于增材制造技术的优化设计

以某型号航空发动机换热器结构为应用背景,根据零件结构和典型工况,基于增材制造工艺(重点激光选区熔化成形技术),进行结构优化设计。

2.大赛命题:

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设计对象初始模型(组委会提供,可自行下载)

 

设计要求:备选材料为铝合金AlSi7Mg,材料属性见表1,换热器典型工况见表2

表1  铝合金AlSi7Mg性能

密度

2600kg/m3

热导率(100℃)

155 W/(m·K)

热导率(200℃)

163 W/(m·K)

比热容(100℃)

880 J/( kg· K )

比热容(200℃)

992 J/( kg· K )

抗拉强度

195 Mpa

伸长率

2%

布氏硬度HBW

60

表2  换热器典型工况

耐压压力

10.5bar

来流液体温度

-54~140℃

来流液体流量

0~6L/min

来流空气温度

-54~140℃

来流空气流量

0~15 kg/min

 

3.作品提交

(1)参赛报名表

(2)知识产权承诺书

(3)零件设计报告:文件形式为Word,内容包括设计过程、优化方法、强度校核、减重效果、打印摆放方向等。

(4)零件设计数模:数模格式为STP格式。

4.作品要求:

设计范围不能超过比赛题目规定的设计空间;设计时应考虑增材制造(SLM)的工艺约束。

5.提交方式:

作品及资料发送至邮箱:services@samafb.org

邮件名称命名要求:“增材制造散热器结构优化竞赛+团队名称(或个人姓名)”,并统一提交打包压缩文件。

六、评选方式

1.组委会初选:按照初赛截止时间、作品完整度、作品与主题契合度等标准,组委会进行初选,初选合格的作品进入专家打分评审环节。

2.专家复选:专家组成员根据选手提交的材料,按照评分标准打分,评选出平均分最高的6个作品入围最终评选。

3.最终评选:入围最终评选的决赛选手将有一周的时间进行作品修改,届时邀请6支决赛队伍到商发进行最终评选答辩,按分数高低评选出一、二及三等奖。

作品总分100份,评分细则如下:

评分细则

评审指标

指标描述

分值

结构重量

与现有结构重量相比,根据减重效果评判成绩:

(1)减重5%以上,9-10分

(2)减重3%-5%,7-9分

(3)减重2%-3%,5-7分

(4)减重2%以下,2-5分

10分

芯体表面积

与现有结构芯体表面积相比,根据表面积增大效果评判成绩:

(1)芯体表面积增大20%以上,22-25分

(2)芯体表面积增大10%-20%,18-22分

(3)芯体表面积增大5%-10%,15-18分

(4)芯体表面积增大5%以下,5-15分

25分

可制造性

根据是否满足3D打印的工艺约束条件评判成绩:

(1)制造难度低,且无需支撑,35-40分;

(2)制造难度低,需少量支撑,30-35分;

(3)制造难度中等,且支撑较多,25-30分;

(4)制造难度中等,且支撑较难去除,15-25分;

(5)制造难度大,且部分支撑不可去除,3-15分

注:制造难度从变形量、连通性、表面处理等角度打分

40分

设计合理性

根据是否满足比赛题目要求评判成绩:

(1)作品设计合理,充分响应命题,完成符合设计要求

15分

报告完整性

根据报告质量和内容完整性评判成绩:

(1)设计报告内容完整,条理清晰,阐明优化设计方法和过程,最终方案经过强度校核,给出相关技术数据,10分

(2)根据以下标准酌情扣分

-没有优化设计方法和过程

-没有经过强度校核

-没有说明减重效果

-没有给出安全裕度

-没有给出打印方向

-没有说明打印难易度

-没有考虑后处理难易度

-其他报告质量问题

10分

七、奖励方式

奖项

数量/名

奖品

一等奖

1

获奖证书及12000元现金或奖品

二等奖

2

获奖证书及5000元现金或奖品

三等奖

3

获奖证书及3000元现金或奖品

优秀奖

若干

获奖证书及2000元现金或奖品

特别优秀的作品将有机会被中国航发商发全部或部分采纳用于量产,有机会成为中国航发商发战略合作供应商,为我国航空事业发展贡献力量。

八、其他说明

1. 本次大赛为免费参加,不收取任何费用。

2. 参赛团队或个人须自愿参加本次大赛,已详细阅读过本活动之竞赛规程且同意亦保证遵守大赛规程中所约定之事项。

3. 参赛团队或个人提交的参赛作品须为原创,不得剽窃、抄袭他人作品,如因此引起任何法律纠纷,其法律责任由选手本人承担。

4. 参赛团队或个人拥有参赛作品(包括创意、文档、源文件、图片、视频等)的知识产权;大赛组委会保留对参赛作品进行展示、宣传、推广的权利,对参赛作品的其他商业使用须征得参赛团队或个人同意。

5. 大赛组委会对参赛团队或个人提供的参赛作品、个人信息等承担保密义务,同时参赛团队或个人有义务在大赛结束之前,不会以任何目的将大赛参赛作品用于其他比赛或发表于其他媒体。

6. 本次大赛最终解释权归中国(国际)航空增材制造结构优化设计大赛组委会所有。

7. 如有任何疑问,请与大赛组委会联系,联系方式:

(1)曾绍连 zengshaolian@samafb.org  17721496713(微信)(赛程规则)

(2)任佳文 renjwacae@163.com  15800531431(设计数据)

 

(English Version)

IV. Participants and registration methods

1.Participants

Researchers, industrial enterprise architects, college teachers and students, maker, geek, and other 3D printing practitioners in Domestic and foreign research institutions, etc.

2. Teams:

Participating team consists of 1-3 members.

3. Registration:

The "Registration Form" and "Intellectual Property Protection Commitment"  Email to:  services@samafb.org  .

The “Registration Form” and “Intellectual Property Protection Commitment” are obtained as follows:

Method 1: Download link:

Registration Form: http: //www.samafb.org/2019/0814/425.html

Intellectual Property Protection Commitment: http: //www.samafb.org/2019/0814/426.html

Method 2: Email to services@samafb.org for materials, please write subject: obtain registration materials.

How to download "The initial model design object" file? Download from Baidu network disk

Link: https: //pan.baidu.com/s/1eM9GDUr6LELJdnXFrE0OrA

Extraction code: contact organizing committee after registration

4. Application Deadline: October 31, 2019

5. Submission Deadline:  January 31, 2020

6. Review works  : February 1, 2020 to March 31, 2020

7. Announcement and Ceremony  : April, 2020 to May, 2020

V. Competition themes & Submissions

1. Competition themes: Heat exchanger components Optimized Design Based on Additive Manufacturing

Based on the structure of a certain type of aero-engine heat exchanger, according to the structure of the part and typical working conditions, the structure optimization design is carried out based on the additive manufacturing process (focus on selective  laser melting technology).

2. Competition propositions:

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Design requirements: material is aluminum alloy AlSi7Mg, material properties are shown in Table 1.

Table 1 AlSi7Mg performance

Density

2600kg/m3

Thermal conductivity (100 ℃)

155W/(m·K)

Thermal conductivity (200 ℃)

163W/(m·K)

Heat capacity (100 ℃)

880J/( kg· K )

Heat capacity (200 ℃)

992J/( kg· K )

Tensile strength

195 Mpa

Elongation rate

2%

Brinell hardness HBW

60

Table 2 Heat Exchanger typical working conditions

Withstand pressure

10.5bar

The temperature of flowing liquid

-54~140℃

The flow of liquid

0~6L/min

Temperature of the flowing air

-54~140℃

Air flow

0~15 kg/min

 

3. Submission

(1) Registration Form

(2) Intellectual Property Protection Commitment

(3) Part Design Report: file format is Word, including design, optimization, strength check, weight loss, display direction of printing.

(4) the D part design: STP digital format.

4. Design Requirements:

The design scope shall not exceed the design space specified in the competition title; The design should consider the technological constraints of additive manufacturing (SLM).

5. Submission Method:

 Send design and materials to the mailbox:  services@samafb.org

Mail Subject: " Additive manufacturing radiator structure optimization contest + team name (or name of individuals)  ". Submit a unified package archive.

VI. Selection Method

1. Organizing committee primary selection: the primary selection is conducted by the organizing committee according to the deadline of the preliminary competition, the completeness of the designs, the fit between the works and the theme and other standards.

2. Expert check: the panel members will choose 6 designs with the highest average score to be selected.

3. Final selection: the finalists will have one week to modify their works. Six finalists will be invited to conduct the final selection and defense, and the first, second and third prizes will be selected according to the score.

Total number of works is 100, and the grading rules are as follows:

Review Index

Indicators Description

Score

Structural weight

Compared with conventional structure, according to the weight reduction effect evaluation results:

(1) lweight loss more than 5% weight, 9-10 points

(2) weight loss 3%-5%, 7-9 points

(3) weight loss 2%-3%, 5-7 points

(4) weight loss less than 2%,2-5 points

10 points

The core body surface area

Compared with the conventional structure of the core surface area, Evaluation results based on the increase of surface area:

(1) core surface area increases more than 20%, 22-25 points

(2) core surface area increases more than 10%-20%, 18-22 points

(3) core surface area increases more than 5%-10%, 15-18 points

(4) core surface area increases less than 5%, 5-15 points

25 points

Manufacturability

According to whether the 3D printing process constraints are met, the evaluation results are as follows:

(1) low manufacturing difficulty and no support required, 35-40 points;

(2) low manufacturing difficulty, need a little support, 30-35 points;

(3) moderate difficulty in manufacturing, with more supports, 25-30 points;

(4) medium difficulty in manufacturing, and difficult to remove support, 15-25 points;

(5) it is difficult to manufacture, and part of the support cannot be removed, 3-15 points

Note: manufacturing difficulty is graded in terms of deformation, connectivity, surface treatment, etc

40 points

Design rationality

Evaluated results according to whether they meet the requirements of the competition title:

(1) the work is reasonably designed, fully responds to the proposition and meets the design requirements

15 points

Report Integrity

Evaluated results based on report quality and content integrity:

(1) the content of the design report is complete and clear, and the optimization design method and process are expounded. The final plan is checked through intensity, and relevant technical data are given, 10 points

(2) points will be deducted according to the following criteria

  • No optimum design methods and processes
  • No strength check
  • No weight loss instruction
  • No margin of safety
  • No print direction given
  • No difficulty Print Specification
  • No considering the degree of difficulty
  • Other reports of quality problems

10 points

VII. Rewards

Awards

Number / name

Prize

First Prize

1

Award certificates and 12,000 yuan in cash or prizes

Second Prize

2

Award certificates and 5000 yuan in cash or prizes

Third Prize

3

Award certificates and 3000 yuan in cash or prizes

Excellence Award

Severals

Award certificates and 2000 yuan in cash or prizes

The outstanding works will have the opportunity to be adopted by China Aviation Development Corporation in whole or in part for mass production. It has the opportunity to become a strategic cooperation supplier of China Aviation Development Corporation and contribute to the development of aviation industry.

VIII. Other Instructions

1. The contest is free of charge.

2. The participating teams or individuals are required to participate in the competition voluntarily, having read the rules and regulations of the competition in detail, and agree to abide by the rules and regulations.

3. The registration submitted by the participating teams or individuals shall be original and shall not plagiarize or copy the works of others. In case of any legal dispute caused thereby, the legal responsibility shall be borne by the contestants themselves.

4. The team or individual owns the intellectual property rights of the entries (including ideas, documents, source documents, pictures, video, etc.); The organizing committee reserves the right to display, publicize and promote the entries. Any commercial use of the entries must be approved by the participating teams or individuals.

5. The organizing committee shall keep confidential the entries and personal information provided by the participating teams or individuals, and the participating teams or individuals shall not use the entries for other competitions or publish them in other media for any purpose before the end of the competition.

6. The organizing committee of China (international) aviation additive manufacturing structure optimization design competition reserves the right of final interpretation.

7. If you have any questions, please contact the contest organizing committee.

1. Zeng shaolian:zengshaolian@samafb.org 17721496713(WeChat) (schedule rules, etc.)

2. Ren jiawen: renjwacae@163.com 15800531431 (design data)

 

赞助单位鸣谢

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2019-08-16 13:49:13 来源:上海市增材制造协会   作者:SAMA
版权所有:上海市增材制造协会
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第一届中国(国际)航空增材制造结构优化设计大赛
第四届SAMA国际论坛暨2019一带一路3D打印与智能制造年会*
第一届中国(国际)航空增材制造结构优化设计大赛
第四届SAMA国际论坛暨2019一带一路3D打印与智能制造年会*