行为—结构演化序参量与运算

在系统层次研究设计的一般规律,以典型机构为实例,讨论结构演变过程,用宏观序参量加以描述,并通过设计机器人动作规划实现序列序参量运算,通过机构设计实例加以验证;用协同学序参量的概念描述行为-结构映射过程,揭示行为-结构映射的内在规律,在此基础上,进一步提出用设计机器人(D-Robot)执行序参量运算实现自动设计和分析,以实现往复运动行为的机构设计为例验证了方法的有效性。提出D-Robot通用模版,并以此为框架编制凸轮机构设计和分析D-Robot动作规划,实现了凸轮机构设计和分析自动设计。输入条件是从动件尖端运动轨迹,输出包括凸轮理论和实际廓线、速度和加速度运动分析、凸轮力分析、动平衡、速度波动及飞轮设计、运动模拟及设计分析报告。

Mapping Behaviors onto Structures Using Order Parameters and D-Robots

Design principles were investigated from a view of synergetics and meta rules for mechanical design and analyses were generated by introducing order parameters. Same order parameters can be used to produce different mechanisms according to specific behavior specification, and an order parameter can be used repetitively to produce the profile of a mechanism. The concept of design robots (D-Robots) was proposed to execute the repetitive operation of order parameters. Order parameters were used as action rules of D-Robots. By introducing the concept of order parameters, the process of synthesis and analysis of different mechanisms can be described in same order parameters. By introducing the concept of D-Robots, the synthesis and analysis procedure can be formulated as a generic template. Combining order parameters and D-Robots, the synthesis and analysis of mechanisms are automated. The order parameters and D-Robots were tested by mechanism synthesis and analysis. A D-Robot template for the mechanism synthesis and analysis is constructed. As case study, a D-Robot for cam mechanism design and analysis was developed and programmed. The output of the D-Robot includes generating the cam profile, kinematic analyses, the cam center and area, the bill of material, the balance weight, the speed fluctuation calculation, an animation and a report. This paper distinguishes with current research methods in generalizing meta rules to produce structures based on behavior specification rather than doing this by establishing equations for each type of mechanisms.