ON-BOARD VIBRATIONS AND HEALTH MONITORING SYSTEMS: AN APPROACH TO ACHIEVE CONDITION-BASED MAINTENANCE (CBM)

摘要

The objectives of our program are 1) to evaluate the cost and effectiveness of the AH-64 (Apache) and UH-60 (Blackhawk) helicopters' on-board Vibration Monitoring (VM) System, to provide an annual cost savings analysis of the Vibration Management Enhancement Program (VMEP), and to initially correlate vibration signals with the ULLS-A (logistics) database to create a Costs Benefits Analysis (CBA) model, 2) to extend our activities in data collection and analysis to achieve the condition-based maintenance (CBM) principles, and 3) to develop diagnosis and prognosis models based on scientific knowledge and laboratory experimentations. In order to provide a timely and sufficient cost and economic analysis to support the effective allocation and management of resources for Army programs, a CBA model has been developed. As of today, our activities have been highlighted by savings in parts cost, operational support, an increase in mission capability rates, a decrease in maintenance, and an increase in total flight time. Other highlights of non-tangible benefits include an increase in confidence for early diagnosis, an increase in attention and performance, an increase in personnel morale, and an increase in safety and sense of safety. Our second objective has begun to extend our On-Board Vibration Monitoring System (VMEP, MSPU, HUMS) activities to meet the objectives and goals of the Condition-Based Maintenance (CBM) concept. At the conclusion of this program we are going to deliver a methodology and the needed technologies for the CBM concept (using logistics (ULLS-A), maintenance (MDR) and vibrations (VMU) databases) to complete a qualified prognosis model(s) and an analytical tool to relate usage and condition indicators to the aforementioned data in order to predict the remaining life as a function of CI's and usage profile; and a simulation model to demonstrate flight regimes and flight profile.