TABLED1 data entry
Altair EmployeePlease help me on TABLED1 entries. I am not able to understand how to assign values in this table (help is not clear). If I want to assign random values can I do it or not. Say in Element flux I want to enter values as
for time = 0 sec value is 4.2
for time = 4 sec value is 0
for time = 4.5 sec value is 4.2
for time = 8 sec value is 0
for time = 8.5 sec value is 4.2. and so on to say 16 sec or 24 sec or more.
Can I input these types of random values to TABLED1 Card or not.
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Thanks for the reply sir. I have to apply a heat flux as (Need to apply this practically as per the problem statement)
at time = 0 sec, Heat Flux = 4.2e6 W/m2
at time = 4 sec, Heat Flux = 0 W/m2
at time = 45 sec, Heat Flux = 0 W/m2
1. What I have entered in TABLED1 is
x1 = 0, y1 = 1 (Linear)
x2 = 4, y2 = 0 (Linear)
x3 = 45, y3 = 0 (Linear)
After I entered these I didn't get the right results.
2. And when I give values as below still didn't get the correct results:
x1 = 0, y1 = 4.2e6
x2 = 4, y2 = 0
x3 =45, y3 = 0
Maybe there is something else wrong in my model but I first want to conform this whether this is correct or not the above two tables which I input.
Please give your inputs
I have tried the above values it didnt work out sir. The values of temperature are in 9.99e5 ranges. May be something is terribly wrong in my problem but I have used the same procedure as given in tutorial OS-1090. Please suggest me something. Working on brake disc transient thermal behaviour. Boundary condition are ambient at 22 degree. Covection through disc surface. And heat flux on both discs. I can share model with you if you want.
Mr @RAHUL
I have encountered TABLED1 entering error
' Discontinuities are not allowed at TABLEM1 endpoints.'
at 1000 Hz 232E5 for E (young Modulus)
at 1000 Hz 2386233 for G (Shear Modulus)
Hi,
From Help:
Discontinuities may be specified between any two points except the two starting points or two end points. For example, in Figure 1 discontinuities are allowed only between points x2 through x7. Also, if y is evaluated at a discontinuity, the average value of y is used. In Figure 1, the value of y at x = x3 is y = (y3+y4)/2.
3.
At least one continuation entry must be specified.
Can you make changes to your table as per the above and check if you can get results you desired?