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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
Mechanical and Electrical Engineering     
Concept system and application of mechanical structure combination symmetry
QI Yu xuan, QIU Qing ying, FENG Pei en, LI Li xin
State Key Laboratory of CAD&CG, Zhejiang University, Hangzhou 310027, China
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Abstract  

The structures of mechanical instances were decomposed from the perspective of symmetry subject and reference in order to apply the idea of structure combination symmetry in the process of mechanical innovation design. Relationships among these multi-symmetry subjects and multi-symmetry references within mechanical instance were analyzed. The concept system of mechanical structure combination symmetry was established, which includes single-level, multi-level, series and parallel combining relations. The symbolic expression system and instance expression model of mechanical combination symmetry were proposed referring to the symbols used in group theory. The design application knowledge of mechanical structure with single-level combination symmetry and multi-level in series and parallel combination symmetry were data mined and extracted by employing Eclat algorithm in the existing design platform of mechanical structure combination symmetry. The combination symmetry knowledge was employed to design a new vane pump with four chambers which were symmetrically combined and parallel connected in order to solve the periodic fluctuation problem of the output flow of existing mechanic pumps. The periodic fluctuations of the output flows of four chambers were cancelled out, and the total instant sweeping area was invariable benefiting from the very structurally combined symmetry design. The output flow of the designed pump was stable.

Published: 28 October 2016
CLC:  TH 112  
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QI Yu xuan, QIU Qing ying, FENG Pei en, LI Li xin. Concept system and application of mechanical structure combination symmetry. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(10): 1889-1901.

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http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2016.10.008     OR     http://www.zjujournals.com/eng/Y2016/V50/I10/1889


机械结构组合对称概念体系及应用

为了将结构组合对称思想应用于机械创新设计,从对称主体、对称基准角度对机械实例结构进行分解.分析机械实例中多对称主体和基准之间的关系,建立包含单层和多层、串联和并联等关系的机械结构组合对称概念体系.借鉴群论的符号表达,建立机械结构组合对称的符号表示体系和实例表达模型.利用已有机械结构组合对称设计平台,运用Eclat算法,挖掘和提炼机械结构单层组合、多层串、并联组合对称设计应用知识.针对现有机械泵输出流量周期性波动问题,应用组合对称设计知识,发明了四腔体并联组合对称叶片泵.得益于该组合对称设计结构,四腔体周期性波动相互抵消,瞬时扫掠总面积恒定,因而泵输出流量稳定.

［1］ 冯培恩,曾令斌,邱清盈,等.机械功能对称的概念体系及应用［J］.机械工程学报,2012, 48(11): 110.
FENG Peien, ZENG Lingbin, QIU Qingying, et al. Research on mechanical function symmetry architecture and its application ［J］. Journal of Mechanical Engineering, 2012, 48(11): 110.
［2］ 郭玉刚.全对称微机械陀螺非理想特性分析［D］.哈尔滨：哈尔滨工业大学,2009.
GUO Yugang. Analysis of nonideal characteristics on a fullysymmetrical micromachined gyroscope ［D］. Harbin: Harbin Institute of Technology, 2009.
［3］ 汪国胜,雷强顺,李波,等.基于双弹簧对称布置的刚度可调式半主动悬架设计［J］.装甲兵工程学院学报,2015, 28(5): 25-28.
WANG Guosheng, LEI Qiangshun, LI Bo, et al.Design of semiactive suspension with adjustable stiffness based on double springs arranged symmetrically ［J］. Journal of Academy of Armored Force Engineering, 2015, 28(5): 25-28.
［4］ 闻德生,杨杰,郑珍泉.双定子对称型多泵多速马达理论特性分析［J］.农业机械学报, 2014, 45(7): 321-324.
WEN Desheng, YANG Jie, ZHENG Zhenquan. Theory analyses of double stator symmetrical type multipump and multispeed motor ［J］. Transactions of the Chinese Society for Agricultural Machinery, 2014,45(7): 321-324.
［5］ PAHL G, BEITZ W. Engineering design: a systematic approach ［M］. New York: Springer, 1996: 159-164.
［6］ SUH N P. Axiomatic design: advanced and applications ［M］. Oxford: Oxford University Press, 1998: 173-174.
［7］ JRG B. Die systematische ausnutzung von symmetrieeigenschaften beim konstruieren ［D］. Braunschweig: Technische Univertitt Braunschweig Fakultt für Maschinenbau und Elektrotechnik, 1990.
［8］ TATE S J, JARED G E M. Recognizing symmetry in solid models ［J］. ComputerAided Design, 2003, 35(7): 673-692.
［9］ STURGES R H. A quantification of manual dexterity: the design for an assembly calculator ［J］. Robotics and ComputerIntegrated Manufacturing, 1989, 6(3): 237-252.
［10］BOOTHROYD G, DEWHURST P, KNIGHT W. Product design for manufacture and assembly ［M］. 3rd ed. ［S. l.］: CRC, 2010.
［11］ 吴惠彬,张迎战.机械装配中的对称群方法［J］.北京理工大学学报,2005,25(10): 852-855.
WU Huibin, ZHANG Yingzhan. Symmetry group in mechanical assembling ［J］. Transactions of BeijingInstitute of Technology, 2005, 25(10): 852-855.
［12］ 白万金,柯映林,吴红兵,等.航空薄壁件对称及阶梯对称铣削的数值仿真与分析［J］.中国机械工程,2009,20(2): 214-217.
BAI Wanjin, KE Yinglin, WU Hongbing, et al. Numerical simulation and analysis of symmetry and stepsymmetry milling of aerospace thinwalled workpiece ［J］. China Mechanical Engineering, 2009,20(2): 214-217.
［13］ 马志勇,邱清盈,冯培恩,等.机械对称性的概念体系及其应用方法［J］.浙江大学学报：工学版,2010,44(12): 2354-2359.
MA Zhiyong, QIU Qingying, FENG Peien, et al. Concept system and application method of mechanical symmetry ［J］. Journal of Zhejiang University: Engineering Science, 2010, 44(12): 2354-2359.
［14］ 冯培恩,马友才,邱清盈,等.机械零件对称群及其在面向装配设计中的应用［J］.机械工程学报,2013,49(11): 98-105.
FENG Peien, MA Youcai, QIU Qingying, et al. Symmetry groups of mechanical parts and its application in design for assembly ［J］. Journal of Mechanical Engineering, 2013, 49(11): 98-105.
［15］ 冯培恩,刘屿,邱清盈,等.提高Eclat算法效率的策略［J］.浙江大学学报：工学版,2013,47(2): 223-230.
FENG Peien, LIU Yu, QIU Qingying, et al. Strategies of efficiency improvement for Eclat algorithm ［J］. Journal of Zhejiang University: Engineering Science, 2013, 47(2): 223-230.
［16］ MA Zhiyong, ZHANG Taixia, LIU Fan, et al. Konwledge discovery in design instances of mechanical structure symmetry ［J］. Advances in Mechanical Engineering, 2015, 7(11): 119.
［17］ 机械设计手册编委会.机械设计手册(新版)［M］.北京：机械工业出版社, 2010.
［18］ 轴承拉马.\[2015-03-19\].
http:∥detail.tmall.com/item.htm？spm=a230r.1.14.15.C6C4KO&id=18910353879&ad_id=&am_id=&cm_id=140105335569ed55e27b&pm_id=&abbucket=4.
［19］ 孟宪源,姜琪.机构构型与应用［M］.北京：机械工业出版社,2004: 150, 131.
［20］ 李宗良,林永立（编译）.现代机构百科（上册）［M］.北京：世界图书出版公司,1990:9, 84, 471, 541.（上接第1848页）
［14］ MITTAL G, SUNG C J, YETTER R A. Autoignition of H2/CO at elevated pressures in a rapid compression machine ［J］. International Journal of Chemical Kinetics, 2006, 38(8): 516-529．
［15］ GERSEN S, DARMEVEIL H, LEVINSKY H. The effects of CO addition on the autoignition of H2, CH4 and CH4/H2 fuels at high pressure in an RCM ［J］. Combustion and Flame, 2012, 159(12): 3472-3475．
［16］ HUANG J, HILL P G, BUSHE W K, et al. Shocktube study of methane ignition under enginerelevant conditions: experiments and modeling ［J］. Combustion and Flame, 2004, 136(1): 25-42．
［17］ KWON O C, FAETH G M. Flame/stretch interactions of premixed hydrogenfueled flames: measurements and predictions ［J］. Combustion and Flame, 2001, 124(4): 590-610．
［18］ DAVIS S G, LAW C K. Determination of and fuel structure effects on laminar flame speeds of C1 to C8 hydrocarbons ［J］. Combustion Science and Technology, 1998, 140(16): 427-449．
［19］ SUNG C J, LAW C K. Fundamental combustion properties of H2/CO mixtures: ignition and flame propagation at elevated pressures ［J］. Combustion Science and Technology, 2008, 180(6): 10971116．
［20］ 凌鑫晨,吴锋,姚栋伟.基于化学动力学模型的汽油机缸内过程数值仿真［J］.内燃机学报,2015, 33(2):136-143．
LING Xinchen, WU Feng, YAO Dongwei. Cylinder process simulation of an SI engine based on gasoline surrogate kinetic model ［J］. Transactions of CSICE, 2015, 33(2): 136-143.
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