低频标准振动台失真度及测量摘要.PDF

27 , 2 V o.l 27 N o. 2 20 11 6 W OR LD EA RTHQUAKE ENG INEER ING Jun. 2011 : 1007 - 6069 ( 20 11) 02 - 0185 - 05 杨巧玉, 舒毓龙 ( , 150080) : , , , , , : : G 307 P3 151 62 : A D istortion of low frequency standard vibration tab le and m ea surem en tm ethods YANG Q iaoyu, SHU Y u long ( Inst itute of Engin eering M echan ics, Ch ina Seism ological Bureau, H arb in 150080, Ch ina) Abs tract: W avefo rm d istortion is an mi po rtant p erform ance index o f the standard v ibration table. For standardiz ing m easurem ent m ethods and in strum ents used in the testing, low-frequency d istortion o f the low-frequ ency vibration table is analyzed and distortion m easurem ent m ethods are stud ied in exp ermi ent. T he qua lified lmi it description of the low-frequ ency d istortion is proposed, and m any expermi ents w ere done for testing the d istortion m easurem ent m ethods and the u sed in strum en ts. The resu lts prov ide reference for the low-frequ ency standard v ibrat ion tab le tech- n ica l sp ec ification s, test ing procedures and norm a lising d istortion test m e thod. K ey w ord s: v ibration table low frequ ency distortion m easurem ent m ethod , , , , G B /T 13823. 11 0. 1H z, 3% , 0. 1H z, , , 10 , , , 1 , : 20 10- 10- 28 : 20 11- 0 1- 18 : ( 2009C03) ( 201108007) : ( 1973- ) , , , . E-m ail: iem yqy@ 126. com 186 27 , , 0. 1H z~ 100H z 2% , 0. 0