Active Road Rumble Energy Harvesting Panels

2013 ◽  
Author(s):  
M. Salim Azzouz ◽  
Abhishek Chatterjee ◽  
Robert Rorabaugh ◽  
Christopher Venegas ◽  
Krista Duke ◽  
...  
Keyword(s):  
Sea Water ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Hydraulic Turbine ◽  
Equation Of Motion ◽  
The Road ◽  
Stop Sign ◽  
Physical Prototype ◽  
Toll Plaza ◽  
Save Energy

Vehicles traveling through busy roads and highways waste a huge portion of their kinetic energy. Up to five percent of the car’s energy is lost due to braking. In an effort to save energy it is possible to harvest some of this lost energy through a mechanical device built into the road. With over 1 billion cars, there is a huge potential for a man made untapped energy to be collected and harvested. This presentation focuses on designing a mechanical system that collects the energy of cars passing over a depressible flapping road rumble panel. As the car passes over the flap, the panel depresses and turns a directional shaft. The energy of many panels is collected and is summed up in a continuously turning flywheel. The collected mechanical energy can then be converted into electrical energy. The panels would be located where car drivers encounter deceleration ramps, when approaching a stop sign or entering a toll plaza. The analysis of this active road rumbles concept involved 1) designing a prototype using a computer drawing software such as SolidWorks, then 2) modeling the system mathematically to figure out all the important and intervening parameters factoring in the expression of the equation of motion of such systems, and then finally 3) building a physical prototype to analyzes the performances of such systems. The SolidWorks drawings for the model have been created. The dynamical model used free body diagrams and Newton’s second laws to determine the different loads and the equation of motion of the road rumble system. The mathematical model took into consideration the parameters of a shock absorber with a spring/mass/damper system. The kinematic equations of the shaft and flywheels were used to determine the speed and acceleration of the power train. A physical prototype was tested manually for time and frequency responses. It has been found that the energy collecting flywheel is lightly damped and loses a small part of its energy to friction. A feasibility study was conducted to evaluate the economic viability of such system. The harvested energy was estimated by measuring the RPM of the flywheel, and it was found that such system have an acceptable return on the investment. It is envisioned that such harvesting energy systems can be used in many ways one of them is to empty a huge offshore silo tank filled with sea water and producing peak electrical energy by allowing the sea water back into the silo through a hydraulic turbine.

Power Generation Performance of a Spherical Robot With Pendulums in Amphibious Environment

2021 ◽  
Author(s):  
Yansheng Li ◽  
Meimei Yang ◽  
Bo Wei ◽  
Yi Zhang
Keyword(s):  
Power Generation ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Spherical Robot ◽  
Experiment Platform ◽  
Voltage Balance ◽  
Physical Prototype ◽  
Physics Experiment ◽  
New Generation ◽  
Power Generation Performance

Abstract The energy of mobile robots severely limits their range of motion and work capabilities. This paper proposes a method of capturing energy from the amphibious environment for a spherical robot with pendulums. The movement of pendulums is analyzed during amphibious movement, and a feasible scheme is proposed for a pendulum to capture environmental energy and convert mechanical energy into electrical energy. The mathematical model of the swing power generation is established based on the pendulum dynamic equation and voltage balance equation. The physics experiment platform and virtual experimental platform are built to analyse the power generation performance. Furthermore, the power generation mathematical models are established respectively for the spherical robot rolling on the slope and floating in the water, and the power generation performance is analyzed and summarized under different conditions. The results show that the proposed power generation method and scheme can effectively supply the energy to the spherical robot, can enhance the endurance of the movement in the amphibious environment, and provide theoretical guidance for the development of the physical prototype of the new generation of amphibious spherical robot.

Design of Fitness Device with Power Generation and Multi-Function

2014 ◽  
Vol 624 ◽  
pp. 377-380
Author(s):  
Hai Fei Qiu ◽  
Jin Wei He ◽  
Long Gu
Keyword(s):  
Power Generation ◽  
Daily Life ◽  
Group Structure ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Test Results ◽  
Available Energy ◽  
Physical Prototype ◽  
Safe Load ◽  
Actual Test

In this paper, a fitness device which could generate electricity was designed into rod group structure based on theoretical calculation and experiment. The device could make mechanical energy into electrical energy in process of fitness, and the storage power could used to daily life lighting and small household electrical appliances power. Physical prototype of the device was developed successfully, the actual test results show that, the safe load of the device was 100kg, the charging voltage was 5V and 12V. People could generated available energy in process of fitness, positivity of fitness for people were removed, in results, the device contained certain practical value of popularization.

Reduction of structural vibrations with the piezoelectric stacks ring

2020 ◽  
Vol 64 (1-4) ◽  
pp. 729-736
Author(s):  
Jincheng He ◽  
Xing Tan ◽  
Wang Tao ◽  
Xinhai Wu ◽  
Huan He ◽  
...  
Keyword(s):  
Vibration Control ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Structural Vibrations ◽  
Rotor Systems ◽  
Fea Model ◽  
Piezoelectric Stacks ◽  
Shunt Damping ◽  
Reduction Effect ◽  
Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

scholarly journals A Monolithic Approach of Fluid–Structure Interaction by Discrete Mechanics

Fluids ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 95
Author(s):  
Stéphane Vincent ◽  
Jean-Paul Caltagirone
Keyword(s):  
Solid Mechanics ◽  
Mechanical Energy ◽  
Fluid Structure Interaction ◽  
Equation Of Motion ◽  
Discrete Equation ◽  
Discrete Mechanics ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Vector Potentials

The unification of the laws of fluid and solid mechanics is achieved on the basis of the concepts of discrete mechanics and the principles of equivalence and relativity, but also the Helmholtz–Hodge decomposition where a vector is written as the sum of divergence-free and curl-free components. The derived equation of motion translates the conservation of acceleration over a segment, that of the intrinsic acceleration of the material medium and the sum of the accelerations applied to it. The scalar and vector potentials of the acceleration, which are the compression and shear energies, give the discrete equation of motion the role of conservation law for total mechanical energy. Velocity and displacement are obtained using an incremental time process from acceleration. After a description of the main stages of the derivation of the equation of motion, unique for the fluid and the solid, the cases of couplings in simple shear and uniaxial compression of two media, fluid and solid, make it possible to show the role of discrete operators and to find the theoretical results. The application of the formulation is then extended to a classical validation case in fluid–structure interaction.

Investigation of Thermal Effects in Direct Driven Hydraulic System for Off-Road Machinery

2016 ◽  
Author(s):  
Niko Karlén ◽  
Tatiana Minav ◽  
Matti Pietola
Keyword(s):  
Energy Efficiency ◽  
Hydraulic System ◽  
Energy Savings ◽  
Mechanical Energy ◽  
Hydraulic Model ◽  
Energy Losses ◽  
Total Efficiency ◽  
Ambient Temperatures ◽  
Wheel Loaders ◽  
Save Energy

Several types of off-road machinery, such as industrial trucks, forklifts, excavators, mobile cranes, and wheel loaders, are set to be operated in environments which can differ considerably from each other. This sets certain limits for both the drive transmissions and working hydraulics of these machines. The ambient temperature must be taken into account when selecting the hydraulic fluid since the viscosity and density of the fluid are changing at different operating temperatures. In addition to the temperature, energy efficiency can also be a problem in off-road machinery. In most off-road machines, diesel engines are employed to produce mechanical energy. However, there are energy losses during the working process, which causes inefficiency in produced energy. For better energy efficiency, hybridization in off-road machinery is an effective method to decrease fuel consumption and increase energy savings. One of the possible methods to save energy with hybrids is energy regeneration. However, it means that the basic hydraulic system inside off-road machinery needs to be modified. One solution for this is to utilize zonal or decentralized approach by means of direct driven hydraulic (DDH) system. This paper aims to investigate a DDH system for off-road machinery by means of modelling and analyzing the effect of the temperature. In the direct-driven hydraulic system, the actuator is controlled directly by the hydraulic pump which is operated by the electric motor. Specifically, it is a valveless closed-loop hydraulic system. Thus, there will be no energy losses caused by the valves, and the total efficiency is assumed to be significantly higher. In order to examine the DDH system, a thermo-hydraulic model was created. Additionally, a thermal camera was utilized in order to illustrate the temperature changes in the components of the DDH system. To reproduce the action of the system in different circumstances DDH system was run at different ambient temperatures, and the component temperatures in the system were measured and saved for the analysis. The thermo hydraulic model was proven capable to follow the general trend of heating up.

scholarly journals Feasibility study of power generation using a turbine mounted in aircraft wing

2018 ◽  
Vol 7 (2-1) ◽  
pp. 433
Author(s):  
K. Sri Vamsi Krishna ◽  
Shiva Prasad ◽  
R. Sabari Vihar ◽  
K. Babitha ◽  
K Veeranjaneyulu ◽  
...  
Keyword(s):  
Reynolds Number ◽  
Power Systems ◽  
Free Stream ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Aircraft Wing ◽  
Aerodynamic Efficiency ◽  
Turbulent Reynolds Number ◽  
Main Motive ◽  
Emergency Power

The main objective of this study is to increase the aerodynamic efficiency of turbine mounted novel wing. The main motive behind this work is to reduce the drag by attaining the positive velocity gradient and generate power by converting the stagnation pressure which also acts as emergency power source. By using the energy source of free stream air, Mechanical energy is converted into electrical energy. The obtained power is presented in terms of voltage generated at various angles of attack with different Reynolds number. Experimental analysis is carried out for NACA4415 airfoil at various angles with respect to free stream ranging from 0deg to 30deg from laminar to turbulent Reynolds number. The results were obtained using the research tunnel at IARE aerodynamic facility center. The aerodynamic advantage of this design in terms of voltage is 9.5 V at 35m/s which can be utilized for the aircraft on board power systems.

scholarly journals An optimised system for energy monitoring and data acquisition in substations/domestic applications using IoT

2019 ◽  
Vol 87 ◽  
pp. 01001 ◽  
Author(s):  
V. Badri Rama Krishnan ◽  
Keerthana Sandepudi ◽  
Shaista Gazal
Keyword(s):  
Power Supply ◽  
Communication Protocol ◽  
Electrical Energy ◽  
Energy Monitoring ◽  
Innovative Methods ◽  
Energy Meter ◽  
Consumption Data ◽  
Tariff Rates ◽  
Save Energy ◽  
Reliable Power Supply

The rising demand and tariff rates of electric power have derived the need to develop innovative methods to monitor, manage, economize and save energy. Energy monitoring and conservation are pre-eminent today because of the imbalance between power generation and demand. This paper proposes the outline and application of electrical energy measurement by an Arduino micro-controller that is used to calculate the power consumed by any individual electrical device. The main intention of the presented energy meter is to monitor, acquire and interpret the power consumption data online by integrating smart plugs, sensors at the device level and upload it to the server using IoT based communication protocol. Thus, this project enables the consumer to act accordingly to save power and to render a reliable power supply by making maximum use of energy sources in the cheapest ways.

scholarly journals Analisis Pembangkit Listrik Berbasis Flywheel

2019 ◽  
Vol 17 (1) ◽  
pp. 95
Author(s):  
Jumadi Tangko ◽  
Remigius Tandioga ◽  
Ismail Djufri ◽  
Riza Haardiyanti
Keyword(s):  
Power Plant ◽  
Rotational Speed ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Moment Of Inertia ◽  
Mechanical Device ◽  
Load Bearing ◽  
Wheeled Vehicles ◽  
Load Conditions

Flywheel is a rotating mechanical device, which is generally used on four-wheeled vehicles. Flywheel has a moment of inertia that is able to withstand changes in rotational speed. The energy in flywheel is mechanical energy. This mechanical energy will be converted by generators into electrical energy. At the flywheel-based power plant, tests are carried out in the form of rotation, the generator power of the generator under no load or load conditions, and the time needed for this generator to survive. The results showed that the ability of the flywheel-based power plant in the condition without a backup supply to the motor in the condition of a generator without a load is able to generate power of 860.1 W for 22 seconds, while in a load-bearing generator capable of generating electricity by 708.75 W for 18 seconds 

scholarly journals Triboelectric nanogenerators (TENG): Factors affecting its efficiency and applications

2021 ◽  
Vol 34 (2) ◽  
pp. 157-172
Author(s):  
Deepak Anand ◽  
Singh Sambyal ◽  
Rakesh Vaid
Keyword(s):  
Large Scale ◽  
Review Paper ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Wearable Electronics ◽  
Factors Affecting ◽  
Electrostatic Induction ◽  
Triboelectric Nanogenerators ◽  
Human Motions ◽  
Great Scope

The demand for energy is increasing tremendously with modernization of the technology and requires new sources of renewable energy. The triboelectric nanogenerators (TENG) are capable of harvesting ambient energy and converting it into electricity with the process of triboelectrification and electrostatic-induction. TENG can convert mechanical energy available in the form of vibrations, rotation, wind and human motions etc., into electrical energy there by developing a great scope for scavenging large scale energy. In this review paper, we have discussed various modes of operation of TENG along with the various factors contributing towards its efficiency and applications in wearable electronics.

scholarly journals PERANCANGAN SISTEM OTOMATISASI CONTROL MOTOR 3 PHASE MENGGUNAKAN BLUETOOTH BERBASIS ARDUINO UNO

2019 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Syarif Moh Rofiq Al- Ghony ◽  
Subuh Isnur Haryudo ◽  
Jati Widyo Leksono
Keyword(s):  
Control System ◽  
Electric Motor ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Data Capture ◽  
Effective Range ◽  
Effective Distance ◽  
Arduino Uno

The electric motor is a device that serves to transform electrical energy into mechanical energy of motion. In this case the designed control system motor 3 phase by Smartphones through bluetooth network to find out the effective range of extremity. The methods used in the form of data capture of measurement effective range the furthest that can be reached by bluetooth to activate relay SPDT and motor 3 phase. Results of testing the most effective distance of the otomasisasi control system of motor 3 phase maximum as far as 15 meters with a time of pause 0.5 seconds.

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