scholarly journals Semi Automatic Bicycle using Fly Wheel Mechanism

2020 ◽  
Vol 8 (5) ◽  
pp. 2915-2921
Keyword(s):  
Kinetic Energy ◽  
Moving Vehicle ◽  
Bicycle Rider

Self-loader bike is a system for recovering the motor vita lity of the moving vehicle from the wheel put away and putting it as rotational vitality under braking in the flywheel Lot of kinetic energy is lost when a bicycle is applied brake. This loss in kinetic energy is recovered using flywheel and it stores the required energy. As per the requirement, the bicycle rider may descend or ascend the usage of energy. The flywheel increases the most intense acceleration and reduces pedal strength by 20 percent. During a drive, speeds are in the range between 15.5 and 25 km / h. The speed of the typical bike is 15.5 km/h. We are trying to increases its speed to 20km/hrby using flywheel and increase the bicycle efficiency.

scholarly journals SPEED BREAKER SEBAGAI PENGGERAK GENERATOR LISTRIK

2020 ◽  
Vol 3 (01) ◽  
pp. 1-5
Author(s):  
Zainuri Anwar
Keyword(s):  
Kinetic Energy ◽  
Electric Current ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Connecting Rod ◽  
Electric Voltage ◽  
Moving Vehicle

ABSTRACT The kinetic energy was produced by a moving vehicle can be used to generate power by using a speed breaker.  The kinetic energy is converted into mechanical energy by altering a reciprocating connecting rod into rotation of flywheel, then it is transmitted to the generator in order to produce electrical energy.  The purpose of this study was to determine the electrical energy generated from the crankshaft type speed breaker. Speed breaker used has 3 ramps with a maximum ramp height of 10 cm. the load and speed of vehicles passing the ramp are varied 72 kg, 82.5 kg, 88.7 kg at speeds of 5 km/h, 10 km/h, 15 km/h.  The result of the study shows that a vehicle with the mass of 88,7 kg was able to generate a 19 V of electric voltage, 32 A of electric current and 486,4 Watts.  That power is stored in a 12 V and 3 Ah batteries that needed  0.094 hour for charging.  Keywords: Flywheel, Generator, Kinetic energy, Speed breaker   ABSTRAK Energi kinetik yang dihasilkan oleh kendaraan yang bergerak dapat digunakan untuk menghasilkan daya dengan menggunakan speed breaker. Energi kinetik diubah menjadi energi mekanik dengan mengubah batang penghubung bolak-balik menjadi rotasi roda gila, kemudian ditransmisikan ke generator untuk menghasilkan energi listrik. Tujuan dari penelitian ini adalah untuk mengetahui energi listrik yang dihasilkan dari speed breaker tipe poros engkol. speed breaker yang digunakan memiliki 3 ramp dengan tinggi maksimum ramp 10 cm. beban dan kecepatan kendaraan yang melewati ramp di variasikan masing - masing 72 kg, 82,5 kg, 88,7 kg dengan kecepatan 5 km/h, 10 km/h, 15km/h. Hasil penelitian menunjukkan bahwa kendaraan dengan massa 88,7 kg mampu menghasilkan tegangan listrik 19 V, arus listrik 32 A, dan 486,4 Watt. Daya itu disimpan dalam baterai 12 V dan 3 Ah yang membutuhkan 0,094 jam untuk diisi daya. Kata kunci: Energi kinetik, Generator, Roda gila, Speed breaker

scholarly journals Designing & Analysis of Supercapacitor Hybrid Battery System with Regenerative Braking

2021 ◽  
Vol 9 (11) ◽  
pp. 894-901
Author(s):  
Joel Abraham Mathews
Keyword(s):  
Kinetic Energy ◽  
Rotating Magnetic Field ◽  
Battery Pack ◽  
Regenerative Braking ◽  
Battery Life ◽  
Super Capacitor ◽  
Moving Vehicle ◽  
Dynamo Mechanism ◽  
Electric Traction ◽  
Wasted Heat

Abstract: This work implements the help of a super capacitor hybridized with a battery pack to power a motor to work an electric bike. The supercapacitor of specification is built in combination with the battery pack to work in pair at instances where more load in needed. For example in situations like accelerating, decelerating, and climbing a slope. The supercapacitor is recharged while in motion using two different technologies: 1. Regenerative Braking and 2. Generator incorporated into wheel hub. Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This contrasts with conventional braking systems, where the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with dynamic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out very quickly. The system uses Faradays Law of Electromagnetic Induction to induce an EMF and generate voltage by passing a current carrying conductor through a rotating magnetic field. Using this implementation, it has been noted that the battery life has been increased significantly and the total range of the bike has also increased considerably. Keywords: Batteries, Battery pack, Supercapacitor, Hybrid power system, Dynamo mechanism

Dependence of the joint configuration on the dynamic immobility fulcrum

2019 ◽  
pp. 108-114
Author(s):  
A. D. Kozlov ◽  
Yu. P. Potekhina
Keyword(s):  
Kinetic Energy ◽  
Convex Surface ◽  
The Other ◽  
Concave Surface ◽  
Joint Configuration ◽  
Articular Surfaces

Although joints with synovial cavities and articular surfaces are very variable, they all have one common peculiarity. In most cases, one of the articular surfaces is concave, whereas the other one is convex. During the formation of a joint, the epiphysis, which has less kinetic energy during the movements in the joint, forms a convex surface, whereas large kinetic energy forms the epiphysis with a concave surface. Basing on this concept, the analysis of the structure of the joints, allows to determine forces involved into their formation, and to identify the general patterns of the formation of the skeleton.

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