ISO/TS 10303-1846:2021 Mechanical design features and requirements


Application module: Mechanical design features and requirements	ISO/TS 10303-1846:2021(E) © ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms

4 Information requirements
4.1 Required AM ARMs
4.2 ARM type definitions
4.3 ARM entity definitions
4.4 ARM function definition
5 Module interpreted model
5.1 Mapping specification
5.2 MIM EXPRESS short listing
5.2.1 MIM type definitions
5.2.2 MIM entity definition

A MIM short names
B Information object registration
C ARM EXPRESS-G
D MIM EXPRESS-G
E Computer interpretable listings
F Change history
Bibliography
Index


         (*
ISO/TC 184/SC 4/WG 12 N10896 - ISO/TS 10303-1846 Mechanical design features and requirements - EXPRESS ARM
Supersedes 
         ISO/TC 184/SC 4/WG 12 N10175
*)



SCHEMA Mechanical_design_features_and_requirements_arm;


         USE FROM
         Assembly_structure_arm;
            -- ISO/TS 10303-1026


         USE FROM
         Associative_draughting_elements_arm;
            -- ISO/TS 10303-1311


         USE FROM
         Characterizable_object_arm;
            -- ISO/TS 10303-1765


         USE FROM
         Dimension_tolerance_arm;
            -- ISO/TS 10303-1050


         USE FROM
         Elemental_geometric_shape_arm;
            -- ISO/TS 10303-1004


         USE FROM
         Geometric_tolerance_arm;
            -- ISO/TS 10303-1051


         USE FROM
         Machining_features_arm;
            -- ISO/TS 10303-1814


         USE FROM
         Part_view_definition_arm;
            -- ISO/TS 10303-1023


         USE FROM
         Requirement_assignment_arm;
            -- ISO/TS 10303-1233


         USE FROM
         Shape_property_assignment_arm;
            -- ISO/TS 10303-1032


         USE FROM
         Value_with_unit_extension_arm;
            -- ISO/TS 10303-1753


TYPE md_requirement_assignment_item =
         
         
         SELECT
         BASED_ON
         requirement_assignment_item
         WITH 
         

            (Characterizable_object, 
    Geometric_dimension, 
    Geometric_tolerance, 
    Product, 
    Product_version, 
    Product_view_definition, 
    Shape_element, 
    View_definition_relationship);

         END_TYPE;


TYPE md_requirement_source_item =
         
         
         SELECT
         BASED_ON
         requirement_source_item
         WITH 
         

            (Characterizable_object, 
    Geometric_dimension, 
    Geometric_tolerance, 
    Product, 
    Product_version, 
    Product_view_definition, 
    Shape_element, 
    View_definition_relationship);

         END_TYPE;


TYPE md_tolerance_value_or_limits_and_fits =
         
         
         SELECT

            (Length_plus_minus_bounds, 
    Limits_and_fits);

         END_TYPE;


ENTITY Basic_round_hole

           SUBTYPE OF (Hole);

           depth : 
         OPTIONAL 
         Positive_length_data_element;

           depth_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

           diameter : Positive_length_data_element;

           diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           through_hole : BOOLEAN;

           SELF\Characterizable_object.primary_shape_representation RENAMED placement_model : Geometric_model;
DERIVE

           SELF\Machining_feature.placement : Axis_placement_3d := get_the_placement(placement_model);
WHERE

           WR1: SIZEOF(QUERY(ri                <* placement_model\Geometric_model.items                | ('ELEMENTAL_GEOMETRIC_SHAPE_ARM.AXIS_PLACEMENT_3D'
            IN TYPEOF(ri)))) =   1;

           WR2: SIZEOF(['MACHINING_FEATURES_ARM.COUNTERBORE_HOLE',           'MACHINING_FEATURES_ARM.COUNTERSUNK_HOLE',           'MACHINING_FEATURES_ARM.ROUND_HOLE',
            'MECHANICAL_DESIGN_FEATURES_AND_REQUIREMENTS_ARM.EXPLICIT_COMPOSITE_HOLE'] *          TYPEOF(SELF)) =   0;

           WR3: NOT EXISTS(SELF\Multi_axis_feature.maximum_feature_limit);

           WR4: NOT EXISTS(SELF\Characterizable_object.auxiliary_shape_representations);

           WR5: NOT EXISTS(SELF\Characterizable_object.shape_type);

           WR6: NOT EXISTS(SELF\Characterizable_object.description);

           WR7: through_hole XOR EXISTS(depth);

         
         END_ENTITY;


ENTITY Basic_round_hole_occurrence

           SUBTYPE OF (Shape_element);

           definition : Basic_round_hole;
WHERE

           WR1: 'PART_VIEW_DEFINITION_ARM.PART_VIEW_DEFINITION' IN TYPEOF(SELF\Shape_element.associated_definition);

           WR2: SELF\Shape_element.product_definitional = TRUE;

         
         END_ENTITY;


ENTITY Basic_round_hole_occurrence_in_assembly

           SUBTYPE OF (Basic_round_hole_occurrence);

           modified_components : LIST[1:?] OF 
         UNIQUE
         Multi_level_reference_designator;

         
         END_ENTITY;


ENTITY Explicit_composite_hole

           SUBTYPE OF (Hole);

           SELF\Characterizable_object.primary_shape_representation RENAMED placement_model : Geometric_model;
DERIVE

           SELF\Machining_feature.placement : Axis_placement_3d := get_the_placement(placement_model);
WHERE

           WR1: SIZEOF(QUERY(ri                <* placement_model\Geometric_model.items                | ('ELEMENTAL_GEOMETRIC_SHAPE_ARM.AXIS_PLACEMENT_3D'
            IN TYPEOF(ri)))) =   1;

           WR2: SIZEOF(['MACHINING_FEATURES_ARM.COUNTERBORE_HOLE',           'MACHINING_FEATURES_ARM.COUNTERSUNK_HOLE',           'MACHINING_FEATURES_ARM.ROUND_HOLE',
            'MECHANICAL_DESIGN_FEATURES_AND_REQUIREMENTS_ARM.EXPLICIT_ROUND_HOLE'] *          TYPEOF(SELF)) =   0;

           WR3: NOT EXISTS(SELF\Multi_axis_feature.maximum_feature_limit);

           WR4: NOT EXISTS(SELF\Characterizable_object.auxiliary_shape_representations);

           WR5: NOT EXISTS(SELF\Characterizable_object.shape_type);

           WR6: NOT EXISTS(SELF\Characterizable_object.description);

         
         END_ENTITY;


ENTITY Explicit_round_hole

           SUBTYPE OF (Hole);

           depth : Positive_length_data_element;

           depth_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

           diameter : Positive_length_data_element;

           diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           SELF\Characterizable_object.primary_shape_representation RENAMED placement_model : Geometric_model;
DERIVE

           SELF\Machining_feature.placement : Axis_placement_3d := get_the_placement(placement_model);
WHERE

           WR1: SIZEOF(QUERY(ri                <* placement_model\Geometric_model.items                | ('ELEMENTAL_GEOMETRIC_SHAPE_ARM.AXIS_PLACEMENT_3D'
            IN TYPEOF(ri)))) =   1;

           WR2: SIZEOF(['MACHINING_FEATURES_ARM.COUNTERBORE_HOLE',           'MACHINING_FEATURES_ARM.COUNTERSUNK_HOLE',           'MACHINING_FEATURES_ARM.ROUND_HOLE',
            'MECHANICAL_DESIGN_FEATURES_AND_REQUIREMENTS_ARM.EXPLICIT_COMPOSITE_HOLE'] *          TYPEOF(SELF)) =   0;

           WR3: NOT EXISTS(SELF\Multi_axis_feature.maximum_feature_limit);

           WR4: NOT EXISTS(SELF\Characterizable_object.auxiliary_shape_representations);

           WR5: NOT EXISTS(SELF\Characterizable_object.shape_type);

           WR6: NOT EXISTS(SELF\Characterizable_object.description);

         
         END_ENTITY;


ENTITY Md_counterbore_hole_definition

           SUBTYPE OF (Explicit_composite_hole);

           counterbore_definition : LIST[1:?] OF 
         UNIQUE
         Explicit_round_hole;

           drilled_hole_depth : 
         OPTIONAL 
         Positive_length_data_element;

           drilled_hole_depth_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

           drilled_hole_diameter : Positive_length_data_element;

           drilled_hole_diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           through_hole : BOOLEAN;

           shape_model : Geometric_model;
WHERE

           WR1: through_hole XOR EXISTS(drilled_hole_depth);

         
         END_ENTITY;


ENTITY Md_counterbore_hole_occurrence

           SUBTYPE OF (Shape_element);

           definition : Md_counterbore_hole_definition;
WHERE

           WR1: 'PART_VIEW_DEFINITION_ARM.PART_VIEW_DEFINITION' IN TYPEOF(SELF\Shape_element.associated_definition);

           WR2: SELF\Shape_element.product_definitional = TRUE;

         
         END_ENTITY;


ENTITY Md_counterbore_hole_occurrence_in_assembly

           SUBTYPE OF (Md_counterbore_hole_occurrence);

           modified_components : LIST[1:?] OF 
         UNIQUE
         Multi_level_reference_designator;

         
         END_ENTITY;


ENTITY Md_counterdrill_hole_definition

           SUBTYPE OF (Explicit_composite_hole);

           counterbore : Explicit_round_hole;

           counterdrill_angle : Positive_angle_data_element;

           counterdrill_angle_tolerance : 
         OPTIONAL 
         Angle_plus_minus_bounds;

           drilled_hole_depth : 
         OPTIONAL 
         Positive_length_data_element;

           drilled_hole_depth_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

           drilled_hole_diameter : Positive_length_data_element;

           drilled_hole_diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           through_hole : BOOLEAN;

           shape_model : Geometric_model;
WHERE

           WR1: through_hole XOR EXISTS(drilled_hole_depth);

         
         END_ENTITY;


ENTITY Md_counterdrill_hole_occurrence

           SUBTYPE OF (Shape_element);

           definition : Md_counterdrill_hole_definition;
WHERE

           WR1: 'PART_VIEW_DEFINITION_ARM.PART_VIEW_DEFINITION' IN TYPEOF(SELF\Shape_element.associated_definition);

           WR2: SELF\Shape_element.product_definitional = TRUE;

         
         END_ENTITY;


ENTITY Md_counterdrill_hole_occurrence_in_assembly

           SUBTYPE OF (Md_counterdrill_hole_occurrence);

           modified_components : LIST[1:?] OF 
         UNIQUE
         Multi_level_reference_designator;

         
         END_ENTITY;


ENTITY Md_countersink_hole_definition

           SUBTYPE OF (Explicit_composite_hole);

           countersink_diameter : Positive_length_data_element;

           countersink_diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           countersink_angle : Positive_angle_data_element;

           countersink_angle_tolerance : 
         OPTIONAL 
         Angle_plus_minus_bounds;

           drilled_hole_depth : 
         OPTIONAL 
         Positive_length_data_element;

           drilled_hole_depth_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

           drilled_hole_diameter : Positive_length_data_element;

           drilled_hole_diameter_tolerance : 
         OPTIONAL 
         md_tolerance_value_or_limits_and_fits;

           through_hole : BOOLEAN;

           shape_model : Geometric_model;
WHERE

           WR1: through_hole XOR EXISTS(drilled_hole_depth);

         
         END_ENTITY;


ENTITY Md_countersink_hole_occurrence

           SUBTYPE OF (Shape_element);

           definition : Md_countersink_hole_definition;
WHERE

           WR1: 'PART_VIEW_DEFINITION_ARM.PART_VIEW_DEFINITION' IN TYPEOF(SELF\Shape_element.associated_definition);

           WR2: SELF\Shape_element.product_definitional = TRUE;

         
         END_ENTITY;


ENTITY Md_countersink_hole_occurrence_in_assembly

           SUBTYPE OF (Md_countersink_hole_occurrence);

           modified_components : LIST[1:?] OF 
         UNIQUE
         Multi_level_reference_designator;

         
         END_ENTITY;


ENTITY Mechanical_design_requirement_item_association

           SUBTYPE OF (Item_identified_representation_usage);

           requirement : Requirement_assignment;

         
         END_ENTITY;


ENTITY Simplified_md_counterbore_hole_definition

           SUBTYPE OF (Md_counterbore_hole_definition);

           SELF\Md_counterbore_hole_definition.shape_model RENAMED position : Geometric_model;
WHERE

           WR1: SIZEOF(position\Geometric_model.items) = 1;

         
         END_ENTITY;


ENTITY Simplified_md_counterdrill_hole_definition

           SUBTYPE OF (Md_counterdrill_hole_definition);

           SELF\Md_counterdrill_hole_definition.shape_model RENAMED position : Geometric_model;
WHERE

           WR1: SIZEOF(position\Geometric_model.items) = 1;

         
         END_ENTITY;


ENTITY Simplified_md_countersink_hole_definition

           SUBTYPE OF (Md_countersink_hole_definition);

           SELF\Md_countersink_hole_definition.shape_model RENAMED position : Geometric_model;
WHERE

           WR1: SIZEOF(position\Geometric_model.items) = 1;

         
         END_ENTITY;


ENTITY Simplified_spotface_hole_definition

           SUBTYPE OF (Spotface_hole_definition, Simplified_md_counterbore_hole_definition);

         
         END_ENTITY;


ENTITY Spotface_definition

           SUBTYPE OF (Explicit_round_hole);

           spotface_radius : Positive_length_data_element;

           spotface_radius_tolerance : 
         OPTIONAL 
         Length_plus_minus_bounds;

         
         END_ENTITY;


ENTITY Spotface_hole_definition

           SUBTYPE OF (Md_counterbore_hole_definition);

           SELF\Md_counterbore_hole_definition.counterbore_definition RENAMED spotface : LIST[1:?] OF 
         UNIQUE
         Spotface_definition;

         
         END_ENTITY;


ENTITY Spotface_occurrence

           SUBTYPE OF (Md_counterbore_hole_occurrence);

           SELF\Md_counterbore_hole_occurrence.definition : Spotface_hole_definition;

         
         END_ENTITY;


ENTITY Spotface_occurrence_in_assembly

           SUBTYPE OF (Md_counterbore_hole_occurrence_in_assembly);

           SELF\Md_counterbore_hole_occurrence.definition : Spotface_hole_definition;

         
         END_ENTITY;


FUNCTION get_the_placement
 (input : Geometric_model) : Axis_placement_3d;

  LOCAL
  ap : SET OF Axis_placement_3d := QUERY(ri
                                         <* input\Geometric_model.items
                                         | ('ELEMENTAL_GEOMETRIC_SHAPE_ARM.AXIS_PLACEMENT_3D' IN TYPEOF(ri)));
    END_LOCAL;
      RETURN(ap[LOINDEX(ap)]);


         END_FUNCTION;



         END_SCHEMA;  -- Mechanical_design_features_and_requirements_arm