Maker：CEA

Using com­puter sim­u­la­tion for study­ing the in­ter­ac­tion of an ul­tra­sound field with a sam­ple al­lows de­vel­op­ing ad­e­quate trans­duc­ers and their ap­pli­ca­tion meth­ods and in­creas­ing the re­li­a­bil­ity of the ob­tained re­sults, while at the same time keep­ing the de­vel­op­ment costs low. UT in­spec­tion sim­u­la­tion by CIVA is based on pow­er­ful soft­ware mod­ules for step-by-step sim­u­la­tion of the en­tire in­spec­tion process:

 

• Spec­i­men de­f­i­n­i­tion: By using sim­ple, pre­de­fined spec­i­men mod­els to com­plex CAD files based spec­i­men char­ac­ter­i­za­tions
• UT beam com­pu­ta­tion: Using every type of prac­ti­cally rel­e­vant UT probes
• UT in­spec­tion sim­u­la­tion: For beam in­ter­ac­tion analy­sis with spec­i­mens and flaws

 

Spec­i­men de­f­i­n­i­tion

• Pred­ifined sim­ple geome­tries: Pla­nar, cylin­dri­cal, con­i­cal, spher­i­cal
• Pre­de­fined com­po­nents: Noz­zle, butt and T-weld tem­plates, tur­bine blade root and groove, through wall pen­e­tra­tion, elbow, plates with fas­ten­ers
• Im­port of spec­i­mens: 2D and 3D CAD data, ho­mo­ge­neous and het­ero­ge­neous sam­ples, solids, as­sem­blies of dif­fer­ent solids

 

UT beam com­pu­ta­tion

CIVA is pre­pared for cal­cu­lat­ing the sound field of vir­tu­ally every com­mer­cially avail­able ul­tra­sonic trans­ducer, as well as the pen­e­tra­tion of the gen­er­ated beam into the spec­i­men via any kind of cou­pling medium.

• Trans­ducer type: Sin­gle el­e­ment, dual el­e­ment, phased array, TOFD, tan­dem probes, EMAT
• Cou­pling: Im­mer­sion and con­tact type trans­duc­ers pos­si­ble
• Shape: Rec­tan­gu­lar, cir­cu­lar, el­lip­ti­cal
• Fo­cussing: Ei­ther by shaped trans­ducer sur­face (spher­i­cal, bi­fo­cal, Fer­mat fo­cussing) or by added acoustic lens
• Ex­ci­ta­tion pulse: Fre­quency, band­width, pulse du­ra­tion, delay laws (for phased array) se­lec­table
• Phased array probes: An­nu­lar, 1D lin­ear, 2D ma­trix, 2D sec­to­r­ial or el­lip­ti­cal pat­tern, EMAT phased array

 

 

UT in­spec­tion sim­u­la­tion

CIVA sim­u­lates the in­ter­ac­tion of the acoustic field with a spec­i­men (with or with­out flaws) de­fined by the user.

• In­ter­ac­tion with cal­i­bra­tion de­fects: Side-drilled holes, flat bot­tom and hemi­spher­i­cal holes
• Pre­de­fined de­fect types: Pla­nar, rec­tan­gu­lar or semi el­lip­ti­cal
• Cus­tomized de­fect types: Mul­ti­fac­eted de­fects, 2D CAD con­tour de­fects, branched de­fects
• De­fect num­ber: Sin­gle de­fect, mul­ti­ple de­fects
• Re­sult dis­play: A-SCAN, B-SCAN, C-SCAN, D-SCAN, TOF-Scan, Echo-dy­nam­ics
• Rep­re­sen­ta­tion: Sim­u­la­tion re­sults can be su­per­im­posed on spec­i­men out­line
• Ad­vanced: POD (prob­a­bil­ity of de­tec­tion) cal­cu­la­tion avail­able