maintainability


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maintainability

[mān‚tā·nə′bil·əd·ē]
(engineering)
The ability of equipment to meet operational objectives with a minimum expenditure of maintenance effort under operational environmental conditions in which scheduled and unscheduled maintenance is performed.
Quantitatively, the probability that an item will be restored to specified conditions within a given period of time when maintenance action is performed in accordance with prescribed procedures and resources.

Maintainability

 

one of the chief characteristics of reliability; the suitability of equipment for the various procedures involved in technical servicing and repair. Maintainability is determined by the equipment’s operating and repair effectiveness. Operating effectiveness is the suitability of the equipment for procedures carried out during technical servicing and when the equipment is being prepared for operation, when the operation is in progress, and after the operation is completed. Repair effectiveness is the suitability of the equipment for rapid and convenient repair.

In the narrow sense of the word, maintainability is the suitability of equipment for rapid and convenient performance of specific production operations when the equipment is being serviced and repaired, when its technical condition is being monitored, and when its components are being dismantled, checked, replaced, and reassembled. When equipment is being designed and manufactured, maintainability is ensured by correctly selecting the design and performing all manufacturing operations exactly as specified. When equipment is being operated, maintainability is ensured by an efficient system of technical servicing and repair. Maintainability is characterized by the average time needed to return equipment to operating condition, the probability of returning equipment to working condition within a given period of time, operational readiness, utilization factor, interchangeability, and the degree of standardization.

REFERENCE

Volkov, P. N., and A. I. Aristov. Remontoprigodnost’ mashin. Moscow, 1971.

V. N. FOMIN

maintainability

i. The ability of equipment to meet operational objectives with a minimum expenditure of maintenance effort under the operational and environmental conditions in which scheduled and unscheduled maintenance is performed.
ii. Quantitatively, the probability that an item will be restored to specified conditions within a given period of time when maintenance is performed in accordance with prescribed procedures and resources.
References in periodicals archive ?
M1.1 Documented system maintainability objectives, policies and standards address all areas affected by system
The court while directing federation, petitioner and NAB to file reply with reference to maintainability of the petition adjourned the hearing of case for 3 weeks.
Chapter 4, "Systems Engineering," of the Defense Acquisition Guidebook describes the systems engineering processes and the fundamentals of their application to DoD acquisition, addressing the many design considerations, including reliability and maintainability, that should be taken into account throughout the systems engineering process.
After hearing initial arguments, the court reserved verdict on maintainability of the writ petition.
This contract management assistance to work in usability and maintainability expertise for study phase diagram Principle (SDP) Preliminary draft (Avp) and Project (Pro) is spent in accordance with Articles 72, 144, 150, 165 and 166 of the Procurement Code.
The AHFM RRPI enhanced the fleet's high-priority maintainability program and improved material delivery schedule and production cost.
In fact the slamabad High Court recognized the jurisdiction of CCP subject to determination of maintainability by CCP through an Order.
SHC to hear arguments on maintainability of the petitions on June 12
At this, the court adjourned further hearing till November 4 and directed parties' counsel to advance further arguments on maintainability of the suit.Shehbaz Sharif had filed the Rs 10 billion damage suit in district and sessions court under sections 4 and 9 of the Defamation Ordinance 2002 against the PTI chief.
The ECP after initial hearing on maintainability of the case clubbed the petitions and adjourned the proceedings till next month.
Workshop sponsors have included professional logistics organizations like the International Society of Logistics (formerly known as SOLE) and the Reliability, Maintainability, Supportability Partnership.
Previously the registrar office had also put an objection on the maintainability of the petition, however, the court had heard the petition as an 'objection case' and reserved its verdict.