differential motion


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differential motion

[‚dif·ə′ren·chəl ′mō·shən]
(mechanical engineering)
A mechanism in which the follower has two driving elements; the net motion of the follower is the difference between the motions that would result from either driver acting alone.
References in periodicals archive ?
This implies that the differential motion of 3-space manifests at all scales.
According to IIHS, a well-designed restraint can lower the risk of whiplash injury by reducing the differential motion of an occupant's head and torso in a rear-end crash.
rationalized that frontseat back collapse in rear-end crash tests did not produce any significant differential motion between the dummy's head and neck, and therefore posed less risk of connective-tissue injury.
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