Volvo STD 101-0001, стандартный

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Standard STD 101-0001
Volvo Group
Version
4
Page
22
Table 1 – Resolved dimension examples
STD 101-0001
Model value
a
Resolved dimension
a
Application example
88,4 Linear theoretically
exact dimension
(linear TED)
b
88,4100000 … 88,4
28,6°
28,5918273 … 28,6 Angular
theoretically exact
dimension (angular
TED)
b
Size
c
Ø7,5
Ø7,0
7,0000000 … 7,0
Size 45,700000 45,7 45,7h7
19,67±0,12
Linear distance 19,6666666 … 19,67
+0,8
R 3,2 0
Radial distance 3,1500000 … 3,2
28,6°±0,4°
Angular dimension 28,5918273 … 28,6
Unilateral limit
b
12,0000000 … 12 12 MIN
(21,6)
21,6018043 … 21,6 Auxiliary
dimension
b
a. The values shown are examples. Actual values will reflect the defined precision of the
model and the rounding requirements of each particular application.
b. Linear, radial, angular, diametrical or spherical diameter.
c. Linear, diametrical or spherical diameter.
4.5.3 Model requirements
Requirements for attaching and displaying theoretically exact dimensions, size values and plus and minus
tolerances on a model are defined in the following subsections.
4.5.3.1 Theoretically exact and nominal dimensions
Queried model values for features fully constrained by geometrical tolerances shall be interpreted as theoretically
exact dimensions, in accordance with
STD 112-0003 . In all other circumstances, queried model values not defined
by a specific tolerance or identified as an auxiliary dimension shall be interpreted as a nominal dimension, i.e.
covered by a general tolerance.
a) Querying of the model for the profile, location, and orientation of a feature shall occur within the appropriate
model coordinate system.
b) The display of theoretically exact dimensions may be necessary in defining some model relationships. This
is applicable to an inclined datum feature and to features that may appear to be 90
°
but for which the actual
model angle is other than this. Displayed theoretically exact dimensions shall be enclosed in a box in
accordance with
STD 112-0003 .