Post on 05-Feb-2016
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Lecture number 2Thermal & Mechanical
Models. Automated Analysis for Non-Failure Operation
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MODELS of THERMAL PROCESSES
(ASONIKA-T and ASONIKA-TM)
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02
2
2
2
2
2
d
dTСq
z
Т
y
Т
x
ТрV
λ - factor of heat conductivity of a material; - specific capacity; Т – temperature; – specific thermal capacity of a material; - material density; - time
Vq
рС
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The firm body conditionally broken into elementary volumes by orthogonal planes (a)
and the allocated set of elementary volumes along an axis X (b)
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40032001 TTGTTGTTGTTG yyxx
000
06005 Qd
dTСTTGTTG zz
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Fragment of the electric scheme, modelling the non-stationary heat transfer processes
through elementary volume
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Theme 1:Main principles of
construction of thermal models
Roller1_ASONIKA-T.avi
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Theme 2:Construction of model of thermal processes of a payment with a heater
capacity P on one of the parties for a stationary
thermal mode Roller2_ASONIKA-T.avi
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Theme 3:Construction of model of thermal processes of a payment with a heater
capacity P on one of the parties for a non-stationary
thermal mode Roller3_ASONIKA-T.avi
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Theme 4:Construction of model of thermal processes of the
transistor Roller4_ASONIKA-T.avi
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Theme 5:Construction of model of thermal processes of the
transistor established on a radiator
Roller5_ASONIKA-T.avi
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Theme 6:Construction of model of thermal processes of the
tight block Roller6_ASONIKA-T.avi
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Theme 7:Automatic construction of
thermal models in a subsystem ASONIKA-T on an example of the block of
cassette type
Roller7_ASONIKA-T.avi
MODELS of MECHANICAL PROCESSES (ASONIKA-M)
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},{}]{[}]{[}]{[ PrKrCrM }{r - vector of central movings;
][],[],[ KCM - Matrixes of weights, viscous dispersion of energy and rigidity accordingly;
}{P - vector of external influences.
For the decision of the given problem the method of final elements is used.
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ASONIKA-MSubsystem of the analysis of volumetric constructions of electronic equipment on mechanical
influences
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Theme 1:The basic possibilities of subsystem ASONIKA-MRoller1_ASONIKA-M.avi
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Theme 2:Input of the initial data
Roller2_ASONIKA-M.avi
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Theme 3:Calculation and the analysis of results
Roller3_ASONIKA-M.avi
MODELS for analysis and firmness maintenance to mechanical influences
of electronic designs, established on vibration isolators (ASONIKA-V - Subsystem of the analysis
and maintenance of stability to mechanical influences of electronic equipment, established on vibration
isolators)
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,6,...,2,1
),(
i
tПTdtTd Qqqqiiii
m
kikiik qqП
1,
21
m
kikiikqqT
1,
21
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.0)
)(1(
;0)
)(1(
;0)
)(1(
;0))()(1(
;0))()(1(
;0))()(1(
666556446226
1162,162
6652
5642
46
656555445335
1153,162
5652
5542
45
646545444334
2243,262
4652
4542
44
53543403333332
33
62642402222222
22
61651501111112
11
AAAA
AjAAA
AAAA
AjAAA
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AjAAA
AAAAjA
AAAAjA
AAAAjA
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MODELS of MECHANICAL PROCESSES (ASONIKA-TM –
Subsystem of the analysis of volumetric constructions of electronic equipment on mechanical
influences )
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),,,()/(
)/(2
)/() /(
442
224 3
44 22
tyxPyzD
yxzD
xztz
D10m
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z
m0S
yx,
- complex deflection of the printed-circuit board in a point with coordinates x, y at the moment of time t
- complex deflection printing the weight of printed-circuit board having on unit of the area
in a point with coordinates
)),1(12/( 213
11 hED
))1(12/( 213
22 hED
- complex cylindrical rigidity of printed-circuit board on axes x and y
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3 1 2 2D D D k 2 1 2D D k
kD G h 3 12/
G E 45 452 1/ ( ( ))
E1 2E 45Eh - thickness of the printed-circuit board
,
,
- complex modules of elasticity of a material of the printing payments on axes of coordinates x, y and at an angle 45 degrees to axes
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,
,
- Factors of Puassona of a material of the printed-circuit board on axes and at an angle 45 degrees to axes accordingly (the direction of axes also is combined with a direction of parties printed-circuit board); - the complex external force raising fluctuations, having on unit of area printed-circuit board in a point with coordinates at the moment of time t.
45,2,1
tyxP ,,
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,
The sketch of printed-circuit board with the put grid
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,
Mechanical model of printed-circuit board
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ASONIKA-ТMSubsystem of the analysis of constructions of printed board assemblies on thermal and mechanical
influences
MENTOR GRAPHICS - ASONIKA-ТM
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Theme 1:The basic possibilities of subsystem ASONIKA-TMRoller1_ASONIKA-TM.avi
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Theme 2:Input of the initial data
Roller2_ASONIKA-TM.avi
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Theme 3:Calculation and the analysis of results
Roller3_ASONIKA-TM.avi