Η Toyota έχει αναπτύξει ένα νέο software που τοποθετεί μυς στα ανδρείκελα των δοκιμών ασφαλείας, ώστε να αναδημιουργήσει το πως το ανθρώπινο σώμα αντιδρά κατά τη διάρκεια μιας πρόσκρουσης. Πρόκειται για την 5η έκδοση του Total Human Model for Safety που έχει την δυνατότητα να προσομοιώσει πολλά χαρακτηριστικά των μελών του ανθρώπινου σώματος, δίνοντας έτσι τη δυνατότητα στους ερευνητές να αναλύσουν τα κατάγματα των οστών, τις πληγές στο σώμα, τις κακώσεις στις αρθρώσεις και στους συνδέσμους, όπως και τους άλλους τραυματισμούς που μπορούν να εμφανιστούν κατά τη διάρκεια μιας σύγκρουσης.
Το πρόγραμμα έχει δυνατότητα να προσομοιώσει τη στάση του σώματος είτε αυτή είναι χαλαρή, είτε σε εγρήγορση, με την Toyota να υποστηρίζει πως συμβάλει στην ακριβέστερη μελέτη της αποτελεσματικότητας της ζώνης ασφαλείας, των αερόσακων, των άλλων συστημάτων παθητικής και ενεργητικής ασφαλείας.
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Toyota’s Latest Virtual Crash Dummy Software Can Model Occupant Posture before Collisions
Toyota City, Japan, June 26, 2015―Studies show that roughly half of drivers take defensive action (such as sudden braking or steering) to avoid collisions, with vehicle occupants commonly bracing themselves at the same time. Occupant posture―whether braced or relaxed―has a significant effect on body movement during a collision. However, current human surrogate models used in virtual crash simulations are unable to simulate the reflexive defensive actions that humans take in the moments before an imminent collision, such as bracing one’s body for impact.
To address this, Toyota has successfully added a new muscle model capable of simulating human postural states in the latest version of its Total Human Model for Safety (THUMS) virtual human model software. THUMS Version 5 can simulate a variety of states from relaxed to braced, thus enabling more detailed computer analysis of injuries caused by collisions.
Until now, THUMS was only able to simulate changes in posture post-collision; however with THUMS Version 5’s new muscle model, changes in occupant posture prior to collisions can now be simulated.
This makes it possible to more accurately study the effectiveness not only of seatbelts, airbags and other safety equipment, but also of active safety technologies such as pre-collision systems. In turn, this will lead to development of active safety technologies that better protect vehicle occupants.
THUMS Version 5 is available through Tokyo-based JSOL Corporation and ESI Japan. THUMS has already been adopted by dozens of companies, including automobile and parts manufacturers, and is contributing to vehicle safety research all over the world.
By simulating the many characteristics of various parts of the human body, from its overall shape to its bones and skin, THUMS enables detailed analysis of bone fractures, severed ligaments, and other injuries that can occur during a vehicle collision.
Toyota began developing THUMS in 1997 in cooperation with Toyota Central R&D Labs, Inc. THUMS Version 1 was completed and commercially launched in 2000, followed by Version 2 in 2004, which added a face and bones to the model. Version 3, launched in 2006, added a precise brain model. Version 4, with detailed modeling of internal organs, was completed and released in 2010.
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