Abstract
It is common for original equipment manufacturers (OEMs) of high value products to provide maintenance or service packages to customers to ensure their products are maintained at peak efficiency throughout their life. To quickly and efficiently plan for maintenance requirements, OEMs require accurate information about the use and wear of their products. In recent decades, the aerospace industry in particular has become expert in using real time data for the purpose of product monitoring and maintenance scheduling. Significant quantities of real time usage data from product monitoring are commonly generated and transmitted back to the OEMs, where diagnostic and prognostic analysis will be carried out. More recently, other industries such as construction and automotive, are also starting to develop capabilities in these areas and condition based maintenance (CBM) is increasing in popularity as a means of satisfying customers’ demands. CBM requires constant monitoring of real time product data by the OEMs, however the biggest challenge for these industries, in particular construction, is the lack of accurate and real time understanding of how their products are being used possibly because of the complex supply chains which exist in construction projects. This research focuses on current dynamic data acquisition techniques for mobile hydraulic systems, in this case the use of a mobile inline particle contamination sensor; the aim was to assess suitability to achieve both diagnostic and prognostic requirements of Condition Based Maintenance. It concludes that hydraulic oil contamination analysis, namely detection of metallic particulates, offers a reliable way to measure real time wear of hydraulic components.
Highlights
Products are designed and manufactured to meet customers’ demands, but these can change dramatically over time
The correlation between Tin (Sn) and Cu that was only discovered by the use of SPSS suggests that bronze was wearing out more quickly as the machine ran towards 1900 h
Uncertainties about the condition of products operating in the field make it extremely difficult for original equipment manufacturers (OEMs) to plan maintenance schedules efficiently and cost effectively
Summary
Products are designed and manufactured to meet customers’ demands, but these can change dramatically over time. High value products such as construction equipment, trucks, buses and aeroplanes are expected to have long lifespans. These products are often bought in quantity as a fleet and are likely to be in service for 10 to 30 years or more. N Correspondence to: Centre for Innovative and Collaborative Construction Engineering (CICE), Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom
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