Final answer:
MTBS, MTBF, MTTF, MTTR, and failure rate are terms used in engineering to measure reliability and maintainability of systems. There are different types and classes of maintenance costs, including preventive, corrective, predictive, proactive, and reactive maintenance.
Step-by-step explanation:
In engineering, MTBS stands for Mean Time Between Failures, which measures the average time between two consecutive failures of a system or equipment. MTBF stands for Mean Time Between Failures, which measures the average time between two consecutive failures for repairable systems.
MTTF stands for Mean Time To Failure, which measures the average time until the first failure for non-repairable systems. MTTR stands for Mean Time To Repair, which measures the average time required to repair a failed system or equipment.
Failure rate, on the other hand, is the number of failures of a system or equipment over a specified period of time.
There are different types and classes of maintenance costs, including:
- Preventive Maintenance: This type of maintenance involves regularly scheduled inspections, adjustments, and repairs to minimize the risk of failure.
- Corrective Maintenance: This type of maintenance is performed after a failure occurs and aims to restore the system or equipment to its normal operating condition.
- Predictive Maintenance: This type of maintenance uses data and analysis techniques to predict when a failure is likely to occur, allowing for proactive maintenance to be performed.
- Proactive Maintenance: This type of maintenance involves taking preventive action based on the prediction of failure or degradation.
- Reactive Maintenance: This type of maintenance is performed in response to a failure and aims to quickly restore the system or equipment to its normal operating condition.