1395/6/10 ، 08:16 عصر
(1393/5/14 ، 12:17 عصر)hoseingha نوشته است: با سلام
با توجه به تعریف کردن response -spectrum و تعریف بار دینامیکی و تعداد مدها در etabs 9 بعد از آنالیز باز wraning mide
دلیلش چی میتونه باشه؟؟
اینم از wraning های نرم افزار
P - D E L T A I T E R A T I O N F A I L E D ! ! 11:49:22
E I G E N A N A L Y S I S 11:49:22
NUMBER OF STIFFNESS DEGREES OF FREEDOM = 6444
NUMBER OF MASS DEGREES OF FREEDOM = 513
NUMBER OF EIGEN MODES SOUGHT = 18
NUMBER OF RESIDUAL-MASS MODES SOUGHT = 0
NUMBER OF SUBSPACE VECTORS USED = 20
RELATIVE CONVERGENCE TOLERANCE = 1.00E-07
FREQUENCY SHIFT (CENTER) (CYC/TIME) = .000000
FREQUENCY CUTOFF (RADIUS) (CYC/TIME) = .000000
* * * W A R N I N G * * *
SUBSPACE VECTORS ARE NOT INDEPENDENT,
MODEL OF STRUCTURE MAY BE NUMERICALLY SENSITIVE,
RE-RUN ANALYSIS WITH A DIFFERENT FREQUENCY SHIFT
NUMBER OF EIGEN MODES FOUND = 0
NUMBER OF ITERATIONS PERFORMED = 1
* * * W A R N I N G * * *
NO EIGEN OR RITZ MODES WERE FOUND,
NO RESPONSE-SPECTRUM OR TIME-HISTORY ANALYSES CAN BE PERFORMED
