文章针对离子聚合物-金属复合材料(ionic polymer metal composite,IPMC)的松弛效应,将模糊控制与PID控制相结合设计了模糊PID控制器,实现了其PID的参数自整定功能;采用Matlab/Simulink分别对模糊PID控制系统和常规PID控制系统进行仿真...文章针对离子聚合物-金属复合材料(ionic polymer metal composite,IPMC)的松弛效应,将模糊控制与PID控制相结合设计了模糊PID控制器,实现了其PID的参数自整定功能;采用Matlab/Simulink分别对模糊PID控制系统和常规PID控制系统进行仿真,仿真结果表明,模糊PID控制系统响应时间为0.2 s,远小于常规PID控制系统的1.5 s,模糊PID控制系统的最大超调量比常规PID控制系统降低了74.5%,稳态误差降低了65.6%;采用STC51单片机对模糊PID控制系统和常规PID控制系统进行了IPMC末端输出位移控制实验,结果表明模糊PID控制系统的最大超调量比常规PID控制系统降低了77%,稳态误差降低了49%。该文设计的模糊PID控制系统对IPMC末端输出位移的控制效果比常规PID控制系统有了显著改进,对IPMC材料的应用具有较为重要的促进作用。展开更多
The homopolymer brushes of polyacrylamide(PAAM) on spherical silicon gel were synthesized by atom transfer radical polymerization(ATRP). The silicon gel initiator was prepared by self-assemble. Utilizing these modifie...The homopolymer brushes of polyacrylamide(PAAM) on spherical silicon gel were synthesized by atom transfer radical polymerization(ATRP). The silicon gel initiator was prepared by self-assemble. Utilizing these modified silicon gel as the substrate, a kind of novel inorganic-organic hybrid material with the polymer metal complex was synthesized. The result of ESR indicates that the inorganic/organic hybrid material with the polymer metal complex based on silicon gel possesses well paramagnetis.展开更多
文摘The homopolymer brushes of polyacrylamide(PAAM) on spherical silicon gel were synthesized by atom transfer radical polymerization(ATRP). The silicon gel initiator was prepared by self-assemble. Utilizing these modified silicon gel as the substrate, a kind of novel inorganic-organic hybrid material with the polymer metal complex was synthesized. The result of ESR indicates that the inorganic/organic hybrid material with the polymer metal complex based on silicon gel possesses well paramagnetis.
