lost motion


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lost motion

[′lȯst ′mō·shən]
(mechanical engineering)
The delay between the movement of a driver and the movement of a follower.
References in periodicals archive ?
W] represents the weighted target function: W is a weights matrix that is composed from sizes of lost motion vectors.
When selected areas of the socket system are compressed to this degree, most of the lost motion between the limb bone and socket wall is eliminated.
According to the company, the defective lost motion springs, which are compressed by rocker arms in normal engine use, may bend or break over time, resulting in abnormal engine noise and potentially causing engine stalling and problems in re-starting.
As a result there is minimal friction and lost motion and adjustment is easy; the steering is perfect in feel, weight and speed.
This type of system, usually found in much larger pumps, helps to reduce the shocks created by spring return lost motion designs which are traditionally used in pumps with these output ranges.
The flexible bellows itself is radially compliant, dramatically reducing side loading, as well as very light weight and highly torsionally rigid, which allows for optimal response time, with virtually no lost motion between the motor and dynamometer.
Total lost motion from all sources, including backlash, spring rate and hysteresis, is limited to a maximum of one arc minute.
Total lost motion including backlash, spring rate and hysteresis tops out at only one arc minute.
Lost motion in positioning linkages can equate to dead-band and hysteresis of more than 5%.
UCLA Archive Curator Eddie Richmond said, "We are pleased to have preserved this rarity and having added a new piece to the puzzle of a once completely lost motion picture.
The weapon had to stay fixed on the target after recoil and lost motion of the actuator output shaft would position the weapon to be aimed off target.