Results of the design of crossstability stabilizers of the car Formula Student PNRPU

2021 ◽  
Keyword(s):  
Energy Efficiency ◽  
Dynamic Performance ◽  
Design Calculation ◽  
Student Teams ◽  
The World ◽  
Design And Manufacture ◽  
Control Accuracy ◽  
Acceleration Test

Сurrently Formula Student Motorsport competitions are actively gaining popularity in the world. These competitions are held exclusively for student teams whose goal is to develop, build and test racing cars. Competitions are divided into static and dynamic disciplines. The most important role among these disciplines is played by dynamic ones, which include such tests as: acceleration test, maneuverability, control accuracy, endurance race and energy efficiency. The main tasks of these tests are to pass various types of turns and difficult sections of the route.therefore, to get the best results, it is necessary to complete these tests in the shortest possible time. It is possible to achieve the desired result by achieving the best dynamic performance of the car. One of these problems solved in the design and manufacture of the Formula Student car is the problem of designing cross-stability stabilizers. Keywords Car "Formula Student" PNRPU, rear and front stabilizer bar, design, calculation, operation

Analysis Criteria for Choosing Energy Efficient High-Quality Light Sources and Luminaires

2018 ◽  
pp. 113-119
Author(s):  
Gennady Ya. Vagin ◽  
Eugene B. Solntsev ◽  
Oleg Yu. Malafeev
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
National Standards ◽  
Light Sources ◽  
The European Union ◽  
High Quality ◽  
Eu Directive ◽  
The World ◽  
A New Technique ◽  
Energy Labelling

The article analyses critera applying to the choice of energy efficient high quality light sources and luminaires, which are used in Russian domestic and international practice. It is found that national standards GOST P 54993–2012 and GOST P 54992– 2012 contain outdated criteria for determining indices and classes of energy efficiency of light sources and luminaires. They are taken from the 1998 EU Directive #98/11/EU “Electric lamps”, in which LED light sources and discharge lamps of high intensity were not included. A new Regulation of the European Union #874/2012/EU on energy labelling of electric lamps and luminaires, in which these light sources are taken into consideration, contains a new technique of determining classes of energy efficiency and new, higher classes are added. The article has carried out a comparison of calculations of the energy efficiency classes in accordance with GOST P 54993 and with Regulation #874/2012/EU, and it is found out that a calculation using GOST P 54993 gives underrated energy efficiency classes. This can lead to interdiction of export for certain light sources and luminaires, can discredit Russian domestic manufacturer light sources and does not correspond to the rules of the World Trade Organization (WTO).

scholarly journals A Component-Sizing Methodology for a Hybrid Electric Vehicle Using an Optimization Algorithm

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3147
Author(s):  
Kiyoung Kim ◽  
Namdoo Kim ◽  
Jongryeol Jeong ◽  
Sunghwan Min ◽  
Horim Yang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Electric Vehicle ◽  
Optimization Algorithm ◽  
Hybrid Electric Vehicle ◽  
New Technologies ◽  
New Technology ◽  
Dynamic Performance ◽  
Minimum Principle ◽  
Component Sizing ◽  
Hybrid Electric

Many leading companies in the automotive industry have been putting tremendous effort into developing new powertrains and technologies to make their products more energy efficient. Evaluating the fuel economy benefit of a new technology in specific powertrain systems is straightforward; and, in an early concept phase, obtaining a projection of energy efficiency benefits from new technologies is extremely useful. However, when carmakers consider new technology or powertrain configurations, they must deal with a trade-off problem involving factors such as energy efficiency and performance, because of the complexities of sizing a vehicle’s powertrain components, which directly affect its energy efficiency and dynamic performance. As powertrains of modern vehicles become more complicated, even more effort is required to design the size of each component. This study presents a component-sizing process based on the forward-looking vehicle simulator “Autonomie” and the optimization algorithm “POUNDERS”; the supervisory control strategy based on Pontryagin’s Minimum Principle (PMP) assures sufficient computational system efficiency. We tested the process by applying it to a single power-split hybrid electric vehicle to determine optimal values of gear ratios and each component size, where we defined the optimization problem as minimizing energy consumption when the vehicle’s dynamic performance is given as a performance constraint. The suggested sizing process will be helpful in determining optimal component sizes for vehicle powertrain to maximize fuel efficiency while dynamic performance is satisfied. Indeed, this process does not require the engineer’s intuition or rules based on heuristics required in the rule-based process.

Spline Based Design of Cam Contours for Improved Dynamic Performance

1993 ◽  
Author(s):  
Holly K. Ault ◽  
James C. Wilkinson
Keyword(s):  
Dynamic Performance ◽  
Integrated Design ◽  
Polynomial Functions ◽  
Piecewise Polynomial ◽  
Cam Design ◽  
Piecewise Polynomial Functions ◽  
Cam Follower ◽  
Cam Profile ◽  
Pitch Curve ◽  
Design And Manufacture

Abstract A method for the integrated design and manufacture of radial plate cams is discussed. Currently, a cam-follower system is designed by specifying constraints on the motion of the follower. The physical cam contour or cam pitch curve are not mathematically defined. The cam is manufactured from the discretized follower motion program. A new method for cam design is proposed which will produce a smooth, mathematically defined cam pitch curve while maintaining the proper constraints on the follower motion. Piecewise polynomial functions in the form of rational and/or non-rational splines may be used. Cams will be manufactured using smoothed profiles and tested for improved dynamic performance. The results of initial investigations of cam profile design for this research are presented.

scholarly journals IMPROVING THE ENERGY EFFICIENCY OF SMART CITIES DURING THE COVID-19 PANDEMIC

2021 ◽  
Vol 229 (3) ◽  
pp. 354-364
Author(s):  
MAKSIM D. PUSHKAREV ◽  
◽  
DMITRY A. PROKOFIEV ◽  
Keyword(s):  
Energy Efficiency ◽  
Smart City ◽  
Smart Cities ◽  
Urban Infrastructure ◽  
High Tech ◽  
The World ◽  
The Impact

Smart city technologies make the functioning of urban infrastructure more efficient, and the lives of citizens more comfortable and safe. During the COVID-19 pandemic, they were very popular, and this could not but affect the energy efficiency of high-tech megacities around the world. This article examines the impact of the COVID-19 pandemic on smart cities, and also offers a solution to the problem of energy efficiency of smart cities.

scholarly journals Dynamic statistical assessment of the competitiveness of an energy generating company (as exemplified by Rosenergoatom Concern JSC)

2021 ◽  
Vol 7 (4) ◽  
pp. 327-332
Author(s):  
Tatiana A. Burtseva ◽  
Sergey S. Khvorostyannikov ◽  
Anastasia A. Kuznetsova
Keyword(s):  
Energy Efficiency ◽  
National Economy ◽  
Nuclear Energy ◽  
Nuclear Industry ◽  
Total Energy Consumption ◽  
Russian Economy ◽  
The World ◽  
Two Factors ◽  
The Government ◽  
High Level

The depletion of traditional organic energy sources and aggravated environmental problems are the reasons why the level of energy efficiency is an important factor in the competitiveness of the national economy. Russia ranks third in the world in terms of total energy consumption and its economy is distinguished by a high level of energy intensity (amount of energy per unit of GDP). In 2019, this figure was 9.62 tons of oil equivalent (toe) per 1 million rubles, which is 40% higher than the world average. The low energy efficiency of the Russian economy is a widely recognized problem. A special decree of the Government of Russia in 2018 sets the task of increasing the level of energy efficiency of the Russian economy by 23% by 2030. One of the ways to solve this problem is the development of nuclear energy, and increasing the competitiveness of nuclear energy is one of the key issues for the national economy. In this connection, solving the problem of assessing the competitiveness of the nuclear industry and its leading companies occupies a key place among the practical scientific problems, the solution of which is facilitated by the results presented by the authors in this article. Rosenergoatom Concern JSC is the leading energy generating company in the Russian nuclear industry. The results of the study of the competitiveness of Rosenergoatom Concern JSC were obtained on the basis of the authors’ methodology for assessing the competitiveness of an energy generating company. The novelty of the presented methodology lies in the developed normative and evaluative model and the coefficients of competitiveness of an energy generating company. The advantages of the authors’ model are that it allows (1) obtaining integral assessments of the competitiveness of a power generating company at short time intervals for a large number of indicators and (2) quantitatively measuring the effects of different factors on the competitiveness of a power generating company, provided that the grouping of indicators of competitiveness of a power generating company is justified by influencing factors. The two factors considered by the authors were: the general market factor and the industry factor. According to the results of the study, it was found that Rosenergoatom Concern JSC demonstrates positive increase of the competitiveness indicator mainly due to the industry factor. With this regard, it was concluded that, within the framework of state policy, it is advisable to strengthen support for the Russian nuclear industry by creating additional conditions and opportunities for its energy generating companies on the domestic energy market.

Energy Efficiency of Vehicles

2020 ◽  
Author(s):  
Doug Carroll
Keyword(s):  
Energy Efficiency ◽  
Scientific Knowledge ◽  
Fuel Economy ◽  
Environmental Consequences ◽  
Energy Models ◽  
The World ◽  
Different Types ◽  
The Impact ◽  
The Relationship ◽  
Rational Decisions

Energy Efficiency of Vehicles educates readers about energy and the environment and the relationship between the energy we use and the environment. The world is at a point in time when people need to make very important decisions about energy in the next few decades. This book enables readers to utilize our scientific knowledge to make good rational decisions. Energy Efficiency of Vehicles provides information on: Calculations related to energy, power, and efficiency, and the impact of using different types of energy on the environment. Environmental consequences of consuming energy. Models related to impact of city driving on the energy efficiency and fuel economy of cars and trucks.

The 3M Company

2017 ◽  
pp. 185-318
Keyword(s):  
Water Management ◽  
Health Care ◽  
Energy Efficiency ◽  
Patient Safety ◽  
Social Sustainability ◽  
Gas Emissions ◽  
Diverse Workforce ◽  
Global Challenges ◽  
The World ◽  
Environmental Goals

This chapter has a purpose to acknowledge 3M's greatest opportunity to overcome sustainability and transparency challenges which lies within innovation and collaboration. As a science company, 3M partners with its customers and communities to make the world cleaner, safer and stronger. Starting with technology and working toward the improvement of every life on the planet allows the company to think holistically about addressing global challenges. With an eye toward the future, 3M launched their 2025 sustainability goals. These goals range from investing in sustainable materials and energy efficiency to water management and helping the customers reduce their greenhouse gas emissions through the use of 3M products. 3M has also set goals around building a diverse workforce and worker and patient safety in health care and industrial settings. 3M continues to invest in developing products that help its customers reach their environmental goals, as well as increasing its social sustainability efforts.

Energy and Energy Efficiency

2010 ◽  
pp. 1-9
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Nuclear Waste ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
18Th Century ◽  
Renewable Energy Sources ◽  
Nuclear Power Engineering ◽  
Energy Sources ◽  
The World

Originally, coal was the main source of energy. It remains so throughout the 18th century during the period of the rapid industry development. Later on, oil and naphtha began to be used as energy sources and their usage expanded especially in 19th century. A special feature of the above mentioned fossil fuels is their long creation period – requiring millennia. They are a result of rotting of different plant and animal kinds. In comparison to the period of their formation, the period of their utilization is far shorter. In accordance with a number of existing statistics about 2050 year it may be talked about a depletion of the liquid fossil fuels, also, the world coal supplies are considered to last within the next 200 years. Therefore, the development of nuclear power engineering is considered to be one of the alternatives to generate energy. Recently, the nuclear power energy generation has been denied in many countries because of the risks associated with its generation and because these risks have been confirmed by serious accidents throughout the World. The storage of worked nuclear waste is also a problem and risky. The renewable energy sources are another possibility to generate energy.

The Body Design and Body Flow Passage Digital Simulation Analysis of the Solar Car

2013 ◽  
Vol 364 ◽  
pp. 14-18
Author(s):  
Xuan Zuo Liu ◽  
Hui Min Wang ◽  
Fei Zhang ◽  
Yu Long Zhang ◽  
Qian Cheng Liu
Keyword(s):  
Theoretical Basis ◽  
Body Shape ◽  
Simulation Analysis ◽  
Digital Simulation ◽  
Three Dimensional ◽  
The Body ◽  
Air Resistance ◽  
The World ◽  
Body Design ◽  
Design And Manufacture

This paper designs the three-dimensional body modelling of a solar car prototype mainly according to the World Solar Challenge rules, and carries on the flow field digital simulation analysis. This paper analyzes the air resistance of the car body and adjusts to the body shape, and ultimately gets a model well accorded with air dynamics. This paper provides scientific theoretical basis for the design and manufacture of the solar car prototype.

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