biomechanics applies mechanics to biology physiological and medical applications are the main points...
TRANSCRIPT
Biomechanics
• applies mechanics to biology
• physiological and medical applications are the main points in this
course
Biomechanics
”Biomechanics is the science that examines forces acting upon and within a biological structure and effects produced by such forces.”
B.M. Nigg
Historical backgroundLeonardo da Vinci, 1452-1519Andreas Vesalius, 1514-1564Galileo Galilei, 1564-1642William Harvey, 1578-1658René Descartes, 1596-1650Giovanni Alfonso Borelli, 1608-1679Robert Boyle, 1627-1691Robert Hooke, 1635-1703Isac Newton, 1642-1727Leonard Euler, 1707-1783Thomas Young, 1773-1829Jean Poiseuille, 1797-1869Adolf Fick, 1829-1901....
The way of solving a Biomechanical problem
1. How does the construction work mechanically ?
0. Description of the anatomy, the CAD-drawing.
Kinematics
AnatomyLimitations
2. What about the loading ?
Outer forces
Equations of equilibrium (forces) Equations of equilibrium (moments)
2. What about the loading?
Internal forces
Loading
Loading
Bending
TensionCompression
Ligament
Cartilage
Bending
TensionCompression
It is not obvious that the position follows unambiguous from the loading …
ONLY PASSIVE ELEMENTS
The position is given from the loading
WITH ACTIVE ELEMENTS
The position can be com-pletely different even if the loading is the same