ABAQUS中动力问题边界条件的选取.pdf

3 1 3 V o.l 3 1 N o. 3 2011 6 JOURNAL OF EARTH QUAK E ENG IN EER ING AND ENG INEER ING V IBRAT ION Jun. 2011 : 1000 - 1301( 20 11) 03- 0071- 06 ABAQU S 1 1 1 2 孙海峰, 景立平, 孟宪春, 王宁伟 ( 1. , 150080 2. , 110 168 ) : , ABAQU S, , : , , : , : : P315963 : A The selection of boundary conditions in dynam ic problem s by using ABAQUS 1 1 1 2 SUN H a ifeng , JING L ip ing , MENG X ianchun , WANG N ingw ei ( 1. Inst itute of Eng ineering M echan ics, Ch ina Earthquake A dm in istrat ion, H arb in 150080, Ch ina 2. Shenyang J ianzhu U nivers ity, Sheny ang 110 168, Ch ina) Abstract: Num erical smi ulation is an mi portant m ethod to stu dy the stru ctural v ibrat ion respon se. A nd artificia l boundary cond ition s w ill directly affect the re liab ility of num erical smi ulation results. The num erical smi ulat ion of the w ave source prob lem and scattering prob lem is done by the u se of the finite elem ent softw are ABAQU S. A nd the fixed boundary condit ion, the v iscous boundary condit ion and rem o te art ific ial boundary cond it ion are u sed. Num eri ca l smi u lation results show that: w hen u sing a fixed boundary, the w ave can t through the fixed boundary in to the in fin ite m ed ia, it is no t co inciden t w ith the regulat ion of the w ave propagating in in fin ite m ed ia. Com p ar ison o f the resu lts show th at: u sing the viscou s boundary cond it ion can w e ll smi u late the beh av io r o f the w ave m ot