Advances in damping analysis and design of fiber reinforced composite material structures 纖維增強(qiáng)復(fù)合材料結(jié)構(gòu)阻尼研究進(jìn)展
( 3 ) . linear quadratic regulation method is used to design the optimal feed back controller for the composite material structures with the piezoceramics embedded ( 3 ) .對(duì)壓電復(fù)合智能材料結(jié)構(gòu)設(shè)計(jì)了線性二次型最優(yōu)控制器。
Analysis and compution proves that those dsps are precise to identify the damage of structures . so these dsps could be applied in shm for composite materials structures 分析計(jì)算的結(jié)果表明,幾種標(biāo)識(shí)量都有較好的識(shí)別精度,能較可靠地應(yīng)用用于復(fù)合材料結(jié)構(gòu)的損傷識(shí)別和健康監(jiān)控。
This paper starts with the dynamic characteristics of structures , seeks the damage sign parameters ( dsp ) of composite materials structures , which have essential relations with the damage / healthy status 本文從復(fù)合材料結(jié)構(gòu)的動(dòng)力學(xué)特性入手,找出能較方便地反映結(jié)構(gòu)損傷失效的特征標(biāo)識(shí)量。
The main research works done and conclusions extracted are listed as follows . ( 1 ) . based on the piezoelectric equation , the strain and stress distribution are analyzed for the composite material structures with piezoelectric materials embedded inside 從壓電材料的壓電方程出發(fā),針對(duì)埋入式壓電片,分析埋入式壓電片在和結(jié)構(gòu)一起發(fā)生變形時(shí)基體結(jié)構(gòu)材料和壓電材料的應(yīng)力應(yīng)變的分布規(guī)律和關(guān)系。