Run-In


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Related to Run-In: Run-in period

Run-In

 

the first stage in the operation of a technical device, usually characterized by a level of reliability lower than that demonstrated during the period of normal operation. The lower level of reliability is seen in failures of the device caused by hidden defects, such as those resulting from errors in manufacture or assembly and installation.

During the run-in, devices that have failed and are not repairable are replaced; otherwise, defects are either eliminated by repair, or they may disappear by themselves as a result of changes in the dimensions and shapes of interacting parts. These changes are caused by mutual adaptation of the parts as they wear. Many devices are run in either totally or partially before they begin operation. The duration of the run-in depends on the physical properties of the parts and materials in the device.

References in periodicals archive ?
TWO of the leading riders at the racecourses with the longest run-ins yesterday welcomed the rule that will restrict them to five strikes of the whip after the final jump, stating that it will encourage the "art of jockeyship".
Research by uSwitchforbusiness.com, the independent business energy broker, found almost three quarters of British workers (74%) argue with work colleagues over the office air conditioning - more than a quarter (28%) have regular run-ins.
Dembele scored 26 goals in 24 matches during his one season with LEvski, but also had run-ins with the law, which included drink-driving charges and possession of a fake driver's licence.
He was suspended for all of last season following a DUII arrest that came on the heels of several run-ins with the law by other Oregon players.
I've had my own run-ins with Fergie down the years and he can be prickly, but I still say in this land of supposed democracy and free speech, he is within his rights to speak - or not - to whoever he pleases, no matter what his employers have signed up to.
But Stirton - who is waging a six-year battle to recover pounds 5million of allegedly dirty money - has fallen out with some family members and has had a series of run-ins with brother-in-law Tommy McGovern, 42.
Despite some past run-ins with animal rights groups over seafood issues, Darden is generally viewed as a leader in environmentally responsible fishing and farming, according to experts.
ALL football journalists have the occasional run-ins with managers, players or other administrators.
The musician/actor has had a recent string of run-ins with the law, including an arrest at Phoenix Sky Harbour Airport earlier this month on outstanding warrants after he failed to appear in court.
These activities expose people to potential run-ins with sharks.
He has several run-ins with Ronnie, not least at the poker table as she tries to win money to pay off Peggy's debts.
Neighbours talked of an intelligent man who suffered problems in recent years, including run-ins with local youths who targeted him because he was seen as a loner.