Search results for "motive"
showing 10 items of 708 documents
On-grid residential development with photovoltaic systems in Southern Norway
2013
The application of residential photovoltaic (PV) systems is increasing rapidly worldwide. In Southern Norway, a group of on-grid smart houses with embedded PV systems, solar thermal collectors, and geothermal heat pumps are under development at Skarpnes. In this paper, performance analysis based on simulations of an on-grid residential house with PV system located at Skarpnes is presented. This project is expected to demonstrate zero energy and zero emission housing in Norway. This paper discusses a theoretical study of home energy consumption with electricity production for a single house from a PV system, including simulations of irradiation conditions and tilt angles, and of the PV syste…
Broadening the Concept of Poka Yoke Beyond Automotive Industry
2014
Abstract This paper will present the development of the poka yoke systems, which were initially created and implemented just for the automotive industry, also to other domains. For some fields like medicine, constructions or software development there are already articles available on the benefits brought by poka yoke systems’ implementation. Besides these domains the article will contribute to the recognition of poka yoke systems in fields where, although error proofing systems are used, no link to the poka yoke method was made by the authors, creators and users
Advanced Product Quality Planning Reference Model in Automotive Industry
2013
The papers objective is to present a detailed model of the Advanced Product Quality Planning methodology in the context of the automotive industry. The relations existent between the various inputs and outputs of each planning phase are clearly formulized revealing the intricate web of connections present among them thus facilitating understanding and comprehension of the vast task for both novice and experienced managers. The model can also contain a time and cost analysis of the various activities, concerning a family of products.
Strategic Priorities and Lean Manufacturing Practices in Automotive Suppliers. Ten Years After
2011
Currently, automobile manufacturers have transformed their philosophy of production in favour of the lean manufacturing paradigm. By doing so, they hope to improve efficiency and to obtain better results in the markets in which they operate. This transformation must occur not only in their plants, but it seems important that their suppliers should also modify their production systems in line with the lean manufacturing philosophy (Liker & Wu, 2000; Morris et al., 2006; Oliver & Delbridge, 2002). The effects of this wave will probably result that one integrated supply chain can be built. Supply companies can see benefits from the implantation of lean manufacturing practices in certain of the…
Rear-view mirror use, driver alertness and road type: An empirical study using EEG measures
2006
Abstract The use of rear-view mirrors has been suggested as a good behavioural indicator of driver alertness in traffic situations (Brookhuis, K. A., De Vries, G., & De Waard, D. (1991). The effects of mobile telephoning on driving performance. Accident Analysis and Prevention, 23 (4), 309–316). In general terms, drivers look in the mirrors to find information and adapt their driving to traffic variations. This paper aims to analyse the links between time variations in alertness—measured from EEG activity data—and the frequency of rear-view mirror use in a group of drivers, both on motorways and conventional roads. The results point to a direct relationship between alertness level and mirro…
Self training and meta-cognition goals. New approaches, trends and tools in modern teaching of power electronics
2016
Teaching a complex discipline like power electronics is an open question and the best educational approach or the objectives to be achieved at the end of a power electronic course are still in debate. This paper presents a visual didactic approach chosen by the Authors in the last years in their respective courses in power electronics. It also discuss the objectives and the skills required to the students at the end of the course: in particular, some meta-cognition objectives recently fully entered into the education world in general. Such meta-cognition goals are now discussed for the particular case of power electronics courses. The Switching Functions (SFs) generalized approach is then d…
Development details and performance assessment of a Wind Turbine Emulator
2016
This paper describes an experimental platform to emulate the static and dynamic behavior of real Wind Energy Conversion Systems (WECS). The Wind Turbine Emulator (WTE) consists of two coupled 1.5 kW squirrel-cage induction machines. The WTE calculations are performed on a PC and a DSP, both connected via USB. The total torque applied to the WTE motor is the difference of the scaled wind mechanical torque calculated on the PC, and the turbine inertia torque calculated on the DSP. An improved WTE shaft speed derivative has been used for the inertia torque calculation, which provides better results in terms of attenuation of the high-frequency harmonics present in the generator speed acquisiti…
A sustainability point of view on sheet metal forming operations: material wasting and energy consumption in incremental forming and stamping process…
2012
Abstract Sustainability and sustainable production is nowadays a wide research field due the urgency of reducing environmental burdens of industrial production. Sustainable manufacturing issues are widely investigated too. In particular, due to the relevance such issues assume for automotive and aeronautical industry, the investigation of sheet metal forming processes sustainability is worth studying and, within this research fields, a certain lack of knowledge is still present. Many studies have been presented concerning the evaluation and reduction of environmental burdens in manufacturing. In this paper, the authors focus on sheet metal forming and aim to investigate both the efficient u…
Analysis of the maximization of wind turbine energy yield using a continuously variable transmission system
2017
Abstract In this paper, an analytic study of the subject of mechanical power transmission in HAWT wind turbine has been carried out. For the most part, the study analyzes the use of continuously variable transmission (CVT) in order to allow the turbine and the electric generator to couple, allowing in turn, an unremitting transmission ratio adjustment. In low-wind sites, the design criteria suggest an oversizing of the wind turbine in order to generate adequate electrical power even at low wind speed. The proposed solution enhances the space of operating points since it allows the electric generator to release the rotational speed from the turbine one (limited due to structural integrity). …
Exploring the uncertainty in capacity estimation at roundabouts
2017
Abstract Purpose In gap-acceptance theory the critical and the follow-up headways have a significant role in determining roundabout entry capacities which in turn depend on circulating flow rates under a specified arrival headway distribution. Calculation considers single mean values of the gap-acceptance parameters, neglecting the inherent variations in these random variables and providing a single value of entry capacity. The purpose of this paper is to derive the entry capacity distribution which accounts for the variations of the contributing (random) variables and suggest how to consider this issue in the operational analysis of the roundabouts. Methods We performed a Monte Carlo simul…