RAMSIS STANDARD creates a manikin for the detailed simulation of vehicle occupants. To do this, the virtual human being is positioned in a CAD environment, which in space and design terms conforms exactly to the future vehicle. This forms the basis for precise analyses. In order to design the vehicle for the complete physical spectrum of future users, RAMSIS works with anthropometric scaling, changing smoothly between male and female models. Task-related postures and movements plus individual movement sequences are calculated automatically. Yet another advantage: The user sees the vehicle interior as RAMSIS sees it. Thus outward visibility and the view of each individual instrument can be optimally evaluated.
The Functions of RAMSIS STANDARD
Model structure
- Rendering of the skin in wire grill model form, surface area model form or in the form of a 3D scan
- Physiologically exact joint representation: 53 joints, 104 degrees of joint freedom
- Correct simulation of the H-point (dependent on manikin and seat)
- Various shoe models
- User-defined reference pointscan be optionally coupled with the skin
- Attachment of geometry (tools, clothing . . .)
Anthropometric databases
- 90 statistically validated anthropometric types for each database (adults)
- Typology based on body height, proportions and corpulence
- Children’s data for different age groups from nine months to twelve years
- Data is matched to target markets: databases for North and Central Europe, USA/Canada, Mexico, South America, Japan/Korea, China; standard configuration: Germany
- Acceleration prognosis for taking future body size development into account
- Direct coupling with the anthropometric editor RAMSIS BodyBuilder
Geometrical functions
- Import and export via the CAD interfaces IGES, VDAFS and SAT
- Optional: Direct translators for reading and writing of models from CATIA V5
- Creation of basic geometry
- Interactive or numerical rotation and translation
- Sectional view calculation for surface areas
- Definition and control of kinematic degree of freedom (rotation and translation)
- Layer function, including individual allocation of names and automatic positioning of geometry during import
Task-related posture simulation
- Automatic calculation of postures for freely-definable tasks
- Probability-based optimization of posture as applies to a specific posture model; available models: car drivers and passengers, trucks, motor cycles, pilots, Formula 1, standing posture including balance; standard configuration: car drivers, standing posture
- Task definition, interactive and independent of type, carried out by user
- Flexible reusability thanks to manikin-independent archiving Large number of various task types: targeting, directional, edge surface, grasping, pelvic, joint angle and fixation (anchorage) tasks
- Self-penetrations taken into account
- Rendering of the variation area of H-point and eye positions
- Automatic calculation and analysis of the entire test samples, including documentation (automatic sequence generator)
Manikin analysis
- Calculation of all body part coordinates and joint angles
- Request for body sizes and body mass including partial mass and centers of gravity
- Distance analyses between manikin and geometry
Health and comfort analysis
- Analysis of posture comfort
- Comfort analysis for body parts
- Orthopedic evaluation of spinal curvature
- Direct comparison between various postures
Visibility and mirror visibility analysis
- Line of sight and movement integrate into posture simulation
- Internal vision (as seen from RAMSIS’s eyes), for right and left eyes
- Representation of occlusion by means of calculation of the shadows cast by objects as seen by eye vision
- Realtime output of vision, also during playback of animation
- Mirror view, simulation planar/spherical (any desired number of mirrors possible)
- Mirror position and mirror orientation freely definable
- Ergonomic evaluation of the visual field
- Focusing distance taken into account
Belt analysis
- Calculation and visualization of the belt run over the manikin
- Imaging/representation of belt release points
- Analysis for 2 and 3 point belts
Force analysis
- Comprehensive force atlas based on detailed measurements of test persons
- Differentiation of data according to gender and age group
- Calculation of forces and maximum moments as regards current posture and the body measurements of the manikin
Accessibility analysis
- Body size-dependent calculation of accessibility limit areas for freely definable joint chains
- Visualization of accessibility areas as 3D CAD surface areas
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