Study on the Energy Conversion from the Dynamic Load of Vehicles on the Road Using Piezoelectric Materials

2010 ◽  
Vol 658 ◽  
pp. 57-60 ◽  
Author(s):  
Jae Yun Lee ◽  
Moon Kyu Lee ◽  
Jae Geun Oh ◽  
Kwang Soo Kim
Keyword(s):  
Energy Conversion ◽  
Dynamic Load ◽  
Fossil Fuel ◽  
Piezoelectric Materials ◽  
Piezoelectric Element ◽  
Passenger Vehicle ◽  
The Road ◽  
Vehicle Load ◽  
Energy Conversion System ◽  
On The Road

Many researchers have studied the harvesting from discarded energy such as solar energy, wind and vibration because of the exhaustion of fossil fuel and the environmental pollution. Particularly, vibration-based energy harvesting has increasingly received an attention in last decade. Therefore, the aim of study is to analyze the characteristics of piezoelectric materials to be used in the energy conversion system on vehicle road. At first, the dynamic loads of vehicle on the road are measured with respect to the weight and speed prior to analyzing the characteristics of piezoelectric materials. Then, the energy conversion amount of piezoelectric element is quantified for its size and type under the load profiles. The vehicle dynamic load is the average of 200kgf. The result indicates that the dynamic vehicle load is less affected by the speed. The generated voltage is 1.8kV, and extracted energy is 0.11mJ from one under the load of 8kgf applied on piezoelectric element. The power extracted from one passenger vehicle is able to operate a sensor and transmit acquisition data.

scholarly journals Analysis of driving behaviours of truck drivers using motorway tests

2020 ◽  
Vol 234 (13) ◽  
pp. 3103-3111 ◽  
Author(s):  
Jianbing Gao ◽  
Haibo Chen ◽  
Kaushali Dave ◽  
Junyan Chen ◽  
Ying Li ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Fossil Fuel ◽  
Dominant Role ◽  
Acceleration Process ◽  
Fuel Saving ◽  
Normal Distributions ◽  
The Road ◽  
Consumption Rates ◽  
Potential Benefits ◽  
On The Road

Road transportations still play a dominant role in goods delivery, and driving behaviours significantly affect the fuel economy of heavy-duty trucks. Plenty of fossil fuel is wasted as a result of unreasonable driving behaviours even in the case of highly experienced drivers. The objective of this paper is to analyse drivers’ behaviours over two segments of motorways and estimate the potential benefits of fuel saving caused by a change in driving habits during national and international goods delivery. Drivers’ habits on motorways change depending on the road situations. In the acceleration process, the fuel consumption rates are huge even under low-speed conditions. The truck fuel consumption rates are exaggerated by positive road slopes, but still dominated by acceleration. Accelerations are generally in normal distributions, with the median value being approximately 0.5 m/s2. The speed ranges corresponding to each gear enlarge with the increase in gear number. The potentials of annual fuel saving for parts of European Union countries are nearly 2 × 106 m3 by adopting proper driving behaviours.

Analysis of Dynamic Load Level of High-Speed Heavy Vehicle Imposed on Uneven Pavement

2011 ◽  
Vol 138-139 ◽  
pp. 146-152
Author(s):  
Guo He Guo ◽  
Yu Feng Bai ◽  
Tao Wang
Keyword(s):  
Dynamic Load ◽  
High Speed ◽  
Load Level ◽  
Heavy Vehicle ◽  
Vehicle Speed ◽  
Destructive Effect ◽  
The Road ◽  
Wide Range ◽  
On The Road ◽  
Factor Interaction

Based on the significant destructive effect of heavy vehicle on uneven roads, two simplified models of pavement unevenness and vehicle dynamic load were established in accordance with D'A lembert principle, and Matlab software was used to analyze the changing law of dynamic load under the conditions of different road unevenness, vehicle speed and load. The results show that vehicles running on uneven road may produce more cumulative damages than static load, and DLC (dynamic load coefficient) changes in wide range, maximum up to 2.0 or more; the effect of speed and load on dynamic load is complex, and due to multi-factor interaction, DLC doesn’t consistently increase or decrease with speed and load increasing. Although the dynamic load level caused by high-speed heavy vehicle is not necessarily too high, its impact on the road can not be ignored.

Study on the Dynamic Wheel Load of Multi-Axle Vehicle Based on Distribute Loading Weight

2010 ◽  
Vol 159 ◽  
pp. 35-40
Author(s):  
Zhong Hong Dong
Keyword(s):  
Dynamic Load ◽  
Influence Factors ◽  
Vehicle Speed ◽  
Tire Pressure ◽  
Wheel Load ◽  
The Road ◽  
Road Roughness ◽  
Tire Stiffness ◽  
On The Road

To study the dynamic wheel load on the road, a dynamic multi-axle vehicle mode has been developed, which is based on distribute loading weight and treats tire stiffness as the function of tire pressure and wheel load. Taking a tractor-semitrailer as representative, the influence factors and the influence law of the dynamic load were studied. It is found that the load coefficient increases with the increase of road roughness, vehicle speed and tire pressure, yet it decreases with the increase of axle load. Combining the influences of road roughness, vehicle speed, axle load and tire pressure, the dynamic load coefficient is 1.14 for the level A road, 1.19 for the level B road, 1.27 for the level C road, and 1.36 for the level D road.

scholarly journals METROLOGICAL SUPPORT OF GEODETIC WORKS IN THE ROAD ROUGHNESS MEASURING

2021 ◽  
Vol 6 (166) ◽  
pp. 130-133
Author(s):  
H. Sarkisian ◽  
V. Tymoshevskyi ◽  
S. Urdzik
Keyword(s):  
Metrological Support ◽  
Dynamic Load ◽  
Road Maintenance ◽  
Rigid Pavement ◽  
The Road ◽  
Pavement Roughness ◽  
Road Roughness ◽  
Accuracy Of Measurements ◽  
On The Road

Most of the transport and operational indicators that directly affect the road roughness depend on the roughness of coverage. Therefore, the control and timely monitoring of the road roughness is an extremely important issue that needs the attention of road maintenance services. At monitoring of the road roughness it is most expedient to use a technique of leveling of a covering. The method of leveling the coating provides more detailed information about the coating and allows you to determine the smallest deformations on the road coating, which may be at the first stage of their development, especially at that stage of their development, and show roughness and various parameters. One of the main tasks of measurements in the process of performing geodetic works is not only to obtain the measurement result, but also to assess its reliability. The required quality of instrumental measurement can not be achieved without adhering to the principles of unity and the required accuracy of measurements, so much attention should be paid to the metrological support of geodetic works. The purpose of this article is to analyze the metrological support of geodetic works in determining the pavement roughness and substantiation of the required accuracy of measuring the non-rigid pavement roughness. On the basis of dependences for determining the coefficient of dynamic load on pavement and the correlation between the pavement roughness and the coefficient of dynamic load and on the basis of experimental data, the necessary accuracy of measuring the non-rigid pavement roughness is substantiated. Based on the analysis, it was found that the accuracy of determining the height of the irregularities should not exceed 0.5 mm, for which it is necessary to use optical or electron-optical levels.

scholarly journals Visual Safe Road Travel App Over Google Maps About the Traffic and External Conditions

2018 ◽  
Vol 7 (2.32) ◽  
pp. 283
Author(s):  
Dr S.Hrushikesava Raju ◽  
Dr M.Nagabhushana Rao ◽  
Dr N.Sudheer ◽  
Dr P.Kavitharani
Keyword(s):  
Family Member ◽  
Opposite Direction ◽  
High Mountains ◽  
Google Maps ◽  
The Road ◽  
Vehicle Load ◽  
External Conditions ◽  
Load Characteristics ◽  
On The Road ◽  
Safe Road

In travelling on the roads, Most of our people might get accidents because of lack of road awareness and the traffic potential, also this unpredicted traffic leads to delay in the predicted travel duration. To avoid this kind of odd experiences, the proposed work focuses on the vehicle load characteristics in the available road paths traffic that is existing in the distance of 2-3 kilometers. The characteristics dealt here are vehicle load moving in the same direction as well as vehicle load moving in the opposite direction, danger zones, any wild turns, floods status on the road, group of animals crossing or on the road, any road works intimation, any bridges or flyover conditions, any situational areas like forests, high mountains, lack of public in the areas in the coming 2-3 kilometers in that road if it is two way path in the same road or separate paths infrastructure available. This is more secure because authorized users only will use this kind of facility where users are authorized by their Unique aadhar Number along with their family member details.  

SILICA-REINFORCED EPOXIDIZED NATURAL RUBBER TIRE TREADS — PERFORMANCE AND DURABILITY

2015 ◽  
Vol 88 (3) ◽  
pp. 390-411 ◽  
Author(s):  
Pamela J. Martin ◽  
Paul Brown ◽  
Andrew V. Chapman ◽  
Stuart Cook
Keyword(s):  
Environmental Impact ◽  
Natural Rubber ◽  
Fossil Fuel ◽  
Rolling Resistance ◽  
Epoxidized Natural Rubber ◽  
Research Centre ◽  
Wear Performance ◽  
The Road ◽  
Tire Wear ◽  
On The Road

ABSTRACT Concerns regarding climate change and public health have compelled governments to reduce the environmental impact of transport. Many countries are introducing tire labeling and legislation targeting rolling resistance, wet grip, and noise. The proposed U.S. tire label also includes wear performance. Implementation of tire labeling is enabling buyers to choose better tires. The tire industry is responding to these demands and is developing the next generation of green tires. Current passenger tire tread technology is primarily petroleum based; however, the long-term availability of fossil-fuel supplies is limited. Thus a further step to minimize the environmental impact and carbon footprint of tires over their life cycle is to use sustainable materials not derived from fossil-fuels. Sumitomo Rubber Industries used epoxidized natural rubber (ENR) reinforced with silica in their route to a greener fossil-fuel free tire (the ENASAVE 100). At 25 mol% epoxidation, ENR has a glass transition temperature (Tg) most suitable for tread applications. Silica-filled ENR-25 tread compounds deliver lower rolling resistance, hence reduced fuel consumption, and enhanced wet and ice traction compared with benchmark premium passenger or truck treads. Optimization of wear performance to extend product durability is a current focus of research. However, correlation between laboratory abrasion and on-the-road tire wear is notoriously poor. The Tun Abdul Razak Research Centre (TARRC) have used light microscopy and transmission electron microscopy (TEM) to ascertain a mechanistic insight into tread wear, using results from wear studies on-the-road and laboratory abrasion. The results indicate that the mechanism of on-the-road tire wear differs from that of in-laboratory Akron abrasion tests.

scholarly journals GENERATING ELECTRICITY BY FOOTPATH POWER GENERATOR FLOOR TILES

2021 ◽  
Vol 9 (2) ◽  
pp. 576-582
Author(s):  
Dr. R. Mohanapriya Et al.
Keyword(s):  
Impact Energy ◽  
Piezoelectric Materials ◽  
Human Life ◽  
Electrical Energy ◽  
Road Surface ◽  
Power Generator ◽  
The Road ◽  
Floor Tiles ◽  
Working Principle ◽  
On The Road

Walking is the most common movement in human life. When a person walks, he distributes energy to the road surface in the form of impact, vibrations, sound etc, due to the transfer his weight on the road exterior, through foot falls on the ground during a every steps. This energy Can be tapped and transformed in the practical form such as in electrical form. In order to develop a procedure to connect footstep energy, we are developing a footstep electricity generating device. This device, if embedded in the footpath can varying foot impact energy into electrical energy. The working principle, when a pedestrian step on the upper plate of the device, the plate will dip down to some extent due to the weight of the pedestrian. The descendant movement of the plate results in sturdiness of the piezoelectric materials fitted in the device to produce electrical energy the device was worked by persons walking over to it. However, if there is determined movement of pedestrians over the device, a large amount power will be a formed in this research a prototype of the power producing tiles is developed and studied under varying loading environments to inspect the feasibility of the technology.

scholarly journals On the road to cost-effective fossil fuel desulfurization by Gordonia alkanivorans strain 1B

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25405-25413 ◽  
Author(s):  
Marta Pacheco ◽  
Susana M. Paixão ◽  
Tiago P. Silva ◽  
Luís Alves
Keyword(s):  
Yeast Extract ◽  
Fossil Fuel ◽  
Culture Media ◽  
Cost Effective ◽  
Production Costs ◽  
Growth Promoters ◽  
The Road ◽  
Nutrient Culture ◽  
Gordonia Alkanivorans ◽  
On The Road

The utilization of desulfurizing microorganisms that can grow in low nutrient culture media without vitamins and other growth promoters (e.g. yeast extract, peptone) is an advantage for BDS upgrade since it may reduce the biocatalyst production costs significantly

scholarly journals Cloud Technology FOR Real Time Vehicular Pollution Monitoring and Management in India

2019 ◽  
Vol 8 (3) ◽  
pp. 1495-1498
Keyword(s):  
Climate Change ◽  
Real Time ◽  
Fossil Fuel ◽  
Pollution Monitoring ◽  
Technological Solution ◽  
Rapid Rise ◽  
Vehicular Pollution ◽  
The Road ◽  
On The Road ◽  
Time Basis

Global warming has reached alarming proportion. Climate change is rapidly on the rise. India is one of the worst affected countries by this malaise. All this has been due to the rapid rise in greenhouse gases. These gases have been contributed by both the industries and the multitude of vehicles running on fossil fuel. Both are an evil necessity but the exponential growth of old polluting vehicles have contributed to a big chunk of the vehicular pollution. This paper attempts to provide a technological solution to monitoring these vehicles on a real time basis and preventing these vehicles to be on the road till the pollution is addressed to. It also helps alert the authorities on the minute details of the polluting vehicle, including pinpointing its present location.

Mechanical Properties of Soil under Vehicle Load

2014 ◽  
Vol 633-634 ◽  
pp. 1095-1099 ◽  
Author(s):  
Rui Liang Xu ◽  
Tao Yang
Keyword(s):  
Mechanical Properties ◽  
Traffic Load ◽  
The Road ◽  
Vehicle Type ◽  
Vehicle Load ◽  
On The Road ◽  
Future Work ◽  
The Impact ◽  
Deformation Relationship ◽  
Properties Of Soil

Based on the analysis of relevant characteristics of the traffic load, explores the impact of static and dynamic vehicle type, shaft type factors,and cars on the road, down to analyze the stress level in the soil loads -deformation relationship Through theoretical analysis, research, and future prospects, the measures proposed to solve the problem, come to study the mechanical properties of the program under the vehicle load soil and make the outlook for future work in this area terramechanics.

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