Refine Your Search

Topic

Author

Affiliation

Search Results

Book

Proceedings for the Joint Conference: MFPT 2013 and ISA's 59th International Instrumentation Symposium

2013-05-13
The result of a combined effort between the Society for Machinery Failure Prevention Technology (MFPT) and the International Society of Automation (ISA), which held their conferences together in May, 2013, the proceedings are now are available in print format. Focusing on the theme of Sensors and Systems for Reliability, Safety and Affordability, the Joint Conference MFPT 2013 and ISA’s 59th International Instrumentation Symposium reflected the importance of sensing and condition management systems in lowering sustainment costs. The proceedings contain 33 technical papers chosen out of the 120 presented during the various sessions.
Book

Everything Works Wonderfully

2014-07-01
EVERYTHING WORKS WONDERFULLY is a 250-page A4 softback book written to provide a structured source of guidance and reference information on Servitization and the management of physical assets for people at all levels in industry: • Senior executives considering the expansion of their businesses into the provision of Asset Management services for the products they design and manufacture; • Middle management wishing to know what needs to be done to look after the assets they are responsible for and who to approach for help; • ‘Hands-on’ engineers looking for contacts and advice on detailed tools and techniques. • Academics may also find the book useful as a source of contacts and ideas for research.
Book

Technology for Magnesium Castings

2011-01-01
The latest casting and processing technologies have raised the importance of magnesium in the transportation industry. As a structural material with low density and a very high strength-to-weight ratio, magnesium can reduce vehicle weight and, in turn, reduce greenhouse gas emissions and increase fuel economy. This book provides valuable information on: • melt control • process control • casting and solidification • heat treatment • materials selection • various casting processes The 18 chapter authors are world-class scientists, professors and engineers with countless years of industrial and laboratory experience. Each chapter was also reviewed by qualified metallurgists/materials engineers from the metalcasting industry, academia and research laboratories to ensure that only the highest quality information was accepted for publication.
Technical Paper

System Integration and Analysis in a Virtual Prototype Environment

1999-11-15
1999-01-3712
The design and analysis of vehicle wire harnesses presents a daunting challenge to the modern day transportation industry. The continual increase in on-board vehicle electronics, driven by both consumer and legislative demands, is causing an exponential increase in wire harness complexity. To meet these challenges, software tools have been developed to assist harness designer the various tasks from system partitioning to signal integrity analysis. This paper will explore how the SaberHarness™ tool suite can be used as a virtual prototype environment for a complete system design and analysis including wire harness interconnectivity.
Technical Paper

Verification of Heavy Truck EBS and ABS Using MatrixX Hardware in the Loop Tools

1999-11-15
1999-01-3713
The development of advanced ABS, EBS, and vehicle dynamics control systems requires significant resources and testing. Even in the most controlled environment, on-track vehicle tests are not repeatable. A heavy vehicle model combined with pneumatic brake hardware connected to actual brake system controllers creates a powerful engineering tool. This tool is useful for control system development, electro-mechanical actuator development, and brake system development. An existing heavy vehicle model is modified to interact with the realtime simulation hardware and the pneumatic brake system hardware. Data from several hardware in the loop simulations are presented.
Technical Paper

Cooling System Cleaning through the use of a Chelating Cleaner Filter

1999-11-15
1999-01-3720
A new method of cleaning cooling systems has been developed that uses a filter with a chelating alkaline cleaner that is released into the cooling system. The cleaner filter is installed in place of the inhibitor filter on heavy-duty engines and left in place for one service cycle. After the service cycle, the cleaner filter is removed, the coolant tested, and the inhibitor filter is reinstalled. This represents a major change in the method traditionally used for cooling system cleaning.
Technical Paper

Particulate Traps Used in City-Buses in Switzerland

2000-06-19
2000-01-1927
1 Switzerland is enforcing the use of particulate traps for offroad applications like construction as well as for occupational health applications like tunneling. This decision is based on the results of the VERT-project (1994-1999), which included basic aerosol research, bench screening and field testing of promising solutions as well as the development of implementation tools like trap specification, certification scheems and field control measures. On the other hand there is no corresponding regulation for city-buses yet although PM 10 is about 2× above limit in most Swiss cities. Public pressure however is growing and city transport authorities have reacted by retrofitting Diesel city-buses instead of waiting for cleaner engine technology or CNG-conversions. The favored trap system with about 200 retrofits so far is the CRT.
Technical Paper

Off-Highway Noise - Diverging Demands of the Future

2000-09-11
2000-01-2548
Recent years has seen the development of increased restrictions on allowable noise output from Earthmoving equipment within the European Union, Australia, and Japan. At the same time, other environmental issues such as engine emissions have been the prime focus of America. With Europe now adopting a similar approach to emissions, earthmoving equipment manufacturers are anticipating the conflict that this brings in terms of machine design. This paper reviews the changes in recent years, illustrates the methods adopted so far to reduce noise, and considers what the future may hold in order to meet both legislative and customer demands.
Technical Paper

Pass-by-Noise Development for Trucks Considering Cooling and Airflow Management

2001-03-05
2001-01-3849
The work carried out with external noise insulation has been demanding high importance in vehicle concept since the second External Noise Regulation in Brazil (Conama 001/ 1993). The engineering effort shall increase significantly for near future developments due to the new Regulation (Conama 272 / 2000) with more stringent limits. The effect over vehicle systems beyond noise requirements is not restricted to the addition of shields and insulators. The airflow restriction created by the noise shields surfaces may become a huge cooling issue. This situation is usually observed on trucks designed for tropical markets and submitted to severe environments. Lessons learned in a current development are the basis of the proposed methodology. Vehicle and lab sound intensity noise source ranking tests are suggested as development tools. The paper also presents a pass-by-noise development strategy that includes CAE airflow and cooling management tools.
Technical Paper

Modelling and Simulation of Common Rail Systems

2001-10-01
2001-01-3183
The performances of high pressure fuel-injection systems and their effects on diesel engine combustion are strongly influenced by the injector characteristics and the set up of the whole equipment control system. High-pressure system based on the common-rail architecture allows a multi-stage injection, which is of paramount importance in controlling combustion noise, fuel consumption, operation roughness and exhaust pollutant emissions. Common rail fuel injection equipment for automotive diesel engine, together with its control system have been analysed by using AMESim environment; both standard library elements and self-developed sub-models have been adopted. At first the different components have been considered one by one; in this way the behaviour of high pressure pump (radial-jet), pressure regulator, rail, injectors, system control (e. c. u.) has been investigated; the results have been compared with experimental measurements.
Technical Paper

TIRE COSTS: A Contractor's Point of View

1983-02-01
830823
Tire costs contribute significantly to the operating cost of earthmoving equipment. These costs can be monitored with a tire record system and reduced by utilizing the different options and products the tire manufacturers have to offer.
Technical Paper

Tooth Contact Analysis of Spiral Bevel and Hypoid Gears Under Load

1981-04-01
810688
This paper describes a tool for analyzing tooth contact and motion transmission errors of spiral bevel and hypoid gear sets in the loaded state. Basic tooth geometry and no-load contact is described by standard tooth contact analysis programs (TCA) and blank dimensions. Relative deflections of the gear and pinion, due to load, are introduced either from deflection test data or are assumed based on typical deflections for an axle with similiar geometry. Loading is assumed to be Hertzian taking into account boundary limits. Tooth deflections are based on beam theory. Load sharing is achieved through an iterative technique considering surface mismatches, tooth deformation and tooth bending. Some preliminary results are included. Experimental verification is needed.
Technical Paper

Concepts of Product Support in an International Industrial Equipment Corporation

1981-04-01
810689
Minimizing equipment downtime is a central concern of this conference. Fundamental to this concern is the need to define and measure the elements that significantly influence equipment downtime. The requirement for in-field management information led to the design of the Deere & Company Total Reliability Analysis of Customer Equipment System (T.R.A.C.E.). T.R.A.C.E. measures in a timely and cost effective way, product reliability and life cycle costs, product serviceability, dealer service performance, and provides a means of improving parts service effectiveness.
Technical Paper

Trials and Tribulations of Fatigue Testing of Bearings

1983-09-12
831372
This paper, while not intended to be a comprehensive guide to all of the details of fatigue testing of bearings, does give an overview of the basic considerations that must be addressed. Compromises are always made in fatigue studies, and this paper provides information on the associated implications. Included is a discussion on the life scatter normally encountered in fatigue testing, means and limits of accelerating testing, and comments regarding equipment and cost.
Technical Paper

The Influence of Misalignment on Self-Lubricated Bearings

1983-09-12
831370
In all structures there are several reasons why misalignment can occur at a bearing. This is especially true with large structures such as off-highway equipment of all types, agricultural tractors and implements and roadway vehicles. Equipment of these types will see more bearing alignment problems than smaller automobiles, garden equipment and machine tools. Misalignments can be attributed to distortion in welded units. Efforts to line bore long distances and simply the accumulation of tolerances on several parts also cause alignment problems. Even if the designer makes diligent efforts to reduce tolerancing and manufacturing inaccuracies, the bearing surface will still be subjected to structural misalignment simply due to load application even though not considered overloading. All of these misalignment causes can occur individually or simultantously subsequently causing bearing overloading to shorten bearing life or crush the bearing.
Technical Paper

A Composite Approach to Reducing Abrasive Wear

1983-09-12
831375
“Today, wearing parts are regularly subjected to abnormal loading conditions. They must be able to accept these conditions without failure. In continuous operations, unscheduled downtime greatly increases maintenance costs, not to mention the cost of lost production. White iron castings offer premium abrasion resistance for many of these applications, but are often not used due to the possibility of brittle failure and the difficulty of mechanical attachment. This paper discusses the properties and applications of a composite of martensitic white iron and mild steel. This laminate will accept medium to high impact without loss of service failure, and can be installed by mechanical means or with welded attachment.”
Technical Paper

Computer-Aided Planning, Design, Estimating and Scheduling of Earthwork

1983-09-12
831307
A computer-aided technique is being developed for planning, design, estimating, and scheduling of horizontal construction for facilities required to support military operations. This technique permits the user to quickly analyze possible sites and identify those which would require the least construction effort. Once the user selects the site for a facility, the system can design the earthwork, quantify estimates of each earthmoving function, and generate a construction schedule. The user can choose whether the schedule is to be equipment constrained or completion time constrained. This paper describes the technique, including discussions of site data acquisition, the procedures used for quantifying earthwork and estimating equipment productivity, and correlations of these with a required task sequence to generate a construction schedule.
Technical Paper

CAD/CAM Use in Numerical Control

1983-09-12
831311
This paper discusses the benefits of using an interactive graphic system with a powerful high-level graphics language in the implementation of numerical control. Typical procedural steps are used to illustrate the process through the design, drafting, and manufacturing phases, and to depict some of the capabilities of interactive graphic system CAD/CAM software. These include multi-axis contouring, selection of required tools, generation of tool paths, and explanation of associativity, the use of a machining control file, and post processors for particular machines. Because the system shows the piece part in three dimensions, the user can verify the tool paths, tool clearances and mountings before cutting instructions are issued.
X