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2017-05-16 ...
  • May 16-17, 2017 (8:30 a.m. - 4:30 p.m.) - Shanghai, China
  • September 14-15, 2017 (8:30 a.m. - 4:30 p.m.) - Shanghai, China
Training / Education Classroom Seminars
Driven by high fuel prices, environmental regulations, and consumer demand, the market for hybrid electric vehicles (HEV) has experienced rapid growth. Every major automotive company produces an HEV. There are approximately fifty different HEV models on the market and over eight million HEVs already sold. In order to meet current and future demands in the HEV and PHEV markets, success will depend on engineering personnel knowing how to develop and manufacture HEV powertrains. This two day seminar will cover the fundamentals of HEV powertrain design.
This is the electronic format of the Journal.
Technical Paper
Akhilendra Pratap Singh, Avinash Kumar Agarwal
Premixed charge compression ignition (PCCI) combustion has the potential to utilise alternative fuels such as alcohols. PCCI combustion emits significantly lower oxides of nitrogen (NOx) and particulate matter (PM) and resulted thermal efficiency similar to conventional CI engines. However, PCCI combustion cannot be used in production grade engines due to its incapability to operate at high engine loads. This study focussed on development of hybrid combustion engine, which can operate in both combustion modes such as CI combustion as well as PCCI combustion mode. Hybrid combustion system was controlled by an open ECU, which varied the fuel injection parameters for mode switching between CI and PCCI combustion modes. At low-to-medium engine loads, engine was operated in PCCI combustion mode and at higher engine loads ECU automatically switched the engine operation in CI combustion mode.
Journal Article
Sanjin Saric, Andreas Ennemoser, Branislav Basara, Heinz Petutschnig, Christoph Irrenfried, Helfried Steiner, Günter Brenn
RANS computations of heat transfer involving wall bounded flows at elevated Prandtl numbers typically suffer from a lack of accuracy and/or increased mesh dependency. This can be often attributed to an improper near-wall turbulence modeling and the deficiency of the wall heat transfer models (based on the so called P-functions) that do not properly account for the variation of the turbulent Prandtl number in the wall proximity (y+<5) [1]. As the conductive sub-layer gets significantly thinner than the viscous velocity sub-layer (for Pr >1), treatment of the thermal buffer layer gains importance as well. Various hybrid strategies utilize blending functions dependent on the molecular Prandtl number, which do not necessarily provide a smooth transition from the viscous/conductive sub-layer to the logarithmic region [2].
WIP Standard
This SAE Aerospace Information Report (AIR) presents metrics for assessing the performance of diagnostic and prognostic algorithms applied to Engine Health Management (EHM) functions. This document consolidates and expands upon the metric information previously contained in AIR4985 and AIR5909. The emphasis is entirely on metrics and as such is intended to provide an extension and complement to such documents as ARP4176, which provides insight into how to create a cost benefit analysis to determine the justification for implementing an EHM system.
WIP Standard
This document establishes general gland design criteria for static and dynamic O-ring seal applications used in fluid systems and at fluid pressures common to the aerospace industry. Detailed discussion of design criteria and tables of recommended gland dimensions are contained in the documents listed in Table 1. S.I. unit conversions for U.S. customary units have been provided for reference purposes.
WIP Standard
This document summarizes a number of guidance values and measured values in published literature for Substances listed in ARP4418.
WIP Standard
This Aerospace Recommended Practice (ARP) offers best practice regarding the implementation of IVHM systems taking into account Human Factors, both the vehicle crew and the maintenance staff. The document will include considerations regarding both military and civil fixed wing aircraft. Safety implications will also be addressed.
This Aerospace Information Report (AIR) describes a Limited Engine Monitoring System that can be used by the flight crew or the maintenance staff, or both, to monitor the health of gas turbine engines in aircraft. This AIR considers monitoring of gas path performance and mechanical parameters, and systems such as low cycle fatigue counters and engine history recorders. It also considers typical measurement system accuracies and their impact. This AIR is intended as a technical guide. It is not intended to be used as a legal document or standard. AIR 1873 supplements ARP 1587, Aircraft Gas Turbine Engine Monitoring System Guide.
WIP Standard
The scope of these standards will relate to single-axis moment scales only. Topics covered include dimensional characteristics of single-axis moment scale interfaces, general tooling requirements, scale and tooling accuracy, and display instrument accuracy requirements. Additionally, general guidelines for qualification of equipment and tooling are included, as are general requirements for single-axis blade distribution software.
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