Hydro-regenerative shock absorber with two generators in series for vehicle suspension

2019 ◽  
Author(s):  
Harus Laksana Guntur ◽  
Wiwiek Hendrowati ◽  
Aida Annisa Amin Daman
Keyword(s):  
Shock Absorber ◽  
Vehicle Suspension ◽  
In Series ◽  
Regenerative Shock Absorber

Experimental Study on the Dynamic Characteristics of Hydro-Magneto-Electric-Regenerative Shock Absorber

2016 ◽  
Vol 836 ◽  
pp. 9-13
Author(s):  
Harus Laksana Guntur ◽  
Wiwiek Hendrowati
Keyword(s):  
Experimental Study ◽  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Shock Absorber ◽  
Excitation Frequency ◽  
Vehicle Suspension ◽  
Test Rig ◽  
Electric Generator ◽  
Car Suspension ◽  
Regenerative Shock Absorber

Regenerative shock absorber is designed to convert the vibration energy losses from the vehicle suspension into electricity. This paper presents an experimental study on the dynamic characteristics of hydro-magneto-electric-regenerative shock absorber (HMERSA). Study was carried out by developing a prototype of HMERSA and testing its dynamic characteristics. The results were analyzed and discussed. Prototype of the HMERSA consists of hydraulic system and electric generator. The HMERSA was tested using a quarter car suspension test rig with input displacement in various frequency (1.3Hz, 1.5Hz, 1.7Hz) and for HMERSA’s various oil viscousity (ISO VG 10, 32, 46). Sprung mass acceleration and the generated electric power representing the dynamic characteristics of HMERSA were measured. Maximum power 2.5 watt and root mean square acceleration 0.172 m/s2 gained for HMERSA with oil viscousity ISO VG 10 at all excitation frequency.

Modeling and Analysis of Hybrid Shock Absorber for Military Vehicle Suspension

2014 ◽  
Vol 493 ◽  
pp. 315-320 ◽  
Author(s):  
Harus Laksana Guntur ◽  
Wiwiek Hendrowati ◽  
Tidy Budiarto
Keyword(s):  
Shock Absorber ◽  
Electrical Energy ◽  
Vehicle Suspension ◽  
Modeling And Analysis ◽  
Military Vehicle ◽  
Different Types ◽  
Vehicle Suspension System ◽  
Regenerative Shock Absorber ◽  
The Military ◽  
High Possibility

This paper deals with the design, modeling and analysis of a hybrid shock absorber for vehicle suspension. A specific design of frictional-electromagnetic-regenerative shock absorber is proposed. The hybrid shock absorber consists of the proposed frictional-electromagnetic-regenerative shock absorber assembled in parallel with a conventional-viscous shock absorber. The concept of hybrid shock absorber is proposed due to the following advantages: the regenerative shock absorber will recover some wasted vibration energy from the suspension into electrical energy to support the need for electrical energy of the vehicle, while the viscous shock absorber maintains the performance of suspension closed to its original suspension. The vehicle suspension system dynamic was mathematically modeled for three different types of suspension:1).Conventional suspension using viscous shock absorber; 2).Hybrid suspension using combination of 50% frictional-electromagnetic-regenerative shock absorberand50% viscous shock absorber; and 3).Full regenerative suspension using 100% frictional-electromagnetic-regenerative shock absorber. In this research, 6 wheels military vehicle (APC:Armour Personal Carrier) is chosen as the model due to the high possibility of applying regenerative suspension to the military/off road vehicle. Based on the mathematical models, performances of the vehicle suspension and the regenerated power from regenerative shock absorber (RSA) were simulated. The results were compared between the three types of suspension and discussed.

scholarly journals Design, Modeling, and Analysis of a Novel Hydraulic Energy-Regenerative Shock Absorber for Vehicle Suspension

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Junyi Zou ◽  
Xuexun Guo ◽  
Lin Xu ◽  
Gangfeng Tan ◽  
Chengcai Zhang ◽  
...  
Keyword(s):  
Shock Absorber ◽  
Mathematic Model ◽  
Actual Condition ◽  
Vibration Energy ◽  
Vehicle Suspension ◽  
Modeling And Analysis ◽  
Improve Energy Efficiency ◽  
The Road ◽  
Damping Control ◽  
Regenerative Shock Absorber

To reduce energy consumption or improve energy efficiency, the regenerative devices recently have drawn the public’s eyes. In this paper, a novel hydraulic energy-regenerative shock absorber (HERSA) is developed for vehicle suspension to regenerate the vibration energy which is dissipated by conventional viscous dampers into heat waste. At first, the schematic of HERSA is presented and a mathematic model is developed to describe the characteristic of HERSA. Then the parametric sensitivity analysis of the vibration energy is expounded, and the ranking of their influences is k1≫m2>m1>k2≈cs. Besides, a parametric study of HERSA is adopted to research the influences of the key parameters on the characteristic of HERSA. Moreover, an optimization of HERSA is carried out to regenerate more power as far as possible without devitalizing the damping characteristic. To make the optimization results more close to the actual condition, the displacement data of the shock absorber in the road test is selected as the excitation in the optimization. The results show that the RMS of regenerated energy is up to 107.94 W under the actual excitation. Moreover it indicates that the HERSA can improve its performance through the damping control.

A Comparative Study of the Damping Force and Energy Absorbtion Capacity of Regenerative and Conventional-Viscous Shock Absorber of Vehicle Suspension

2015 ◽  
Vol 758 ◽  
pp. 45-50
Author(s):  
Harus Laksana Guntur ◽  
Wiwiek Hendrowati
Keyword(s):  
Comparative Study ◽  
Shock Absorber ◽  
Excitation Frequency ◽  
Vehicle Suspension ◽  
Friction Damper ◽  
Damping Force ◽  
Force Velocity ◽  
Elliptical Area ◽  
Regenerative Shock Absorber ◽  
Force Displacement

This paper presents a comparative study of the damping force and energy absorbtion capacity of a typical conventional-viscous and a regenerative shock absorber for vehicle suspension. Regenerative shock absorber (RSA) is a shock absorber which can regenerate the dissipated vibration energy from vehicle suspension into electricity. In this research, a prototype of regenerative shock absorber was developed, its damping force and energy absorbtion capacity were tested, and the results were analized and compared with those of a typical conventional-viscous shock absorber. The regenerative and viscous shock absorber were compressed and extended in various excitation frequency using damping force testing equipment to obtain force-velocity and the force-displacement curves. The force-velocity and force-displacement curves indicate the damping force and energy absorbtion capacity of the shock absorber. The results show that the damping force of the typical-viscous shock absorber closed to linear at all exciation frequencies. For regenerative shock absorber, nonlinearity and large hysteresis area of the damping force occur at all excitation frequencies. Further, the energy absorbtion capacity of the typical-viscous shock absorber shows an elliptical area with the compression part bigger than the extension one, while those of the regenerative shock absorber shows an asymmetric square area, which indicates a smaller energy absorbtion capacity. These phenomena indicate the significant effect of implementing dry friction damper and elctrical damper to the characteristics of regenerative shock absorber.

scholarly journals Development and Analysis of a Regenerative Shock Absorber for Vehicle Suspension

2013 ◽  
Vol 7 (3) ◽  
pp. 304-315 ◽  
Author(s):  
Harus LAKSANA GUNTUR ◽  
Wiwiek HENDROWATI ◽  
Rahman Roy LUBIS
Keyword(s):  
Shock Absorber ◽  
Vehicle Suspension ◽  
Regenerative Shock Absorber

A high-efficiency energy regenerative shock absorber for powering auxiliary devices of new energy driverless buses

2021 ◽  
Vol 295 ◽  
pp. 117020
Author(s):  
Hai Li ◽  
Peng Zheng ◽  
Tingsheng Zhang ◽  
Yingquan Zou ◽  
Yajia Pan ◽  
...  
Keyword(s):  
Shock Absorber ◽  
High Efficiency ◽  
New Energy ◽  
Regenerative Shock Absorber

Modelling the Dynamic Behaviour of A Motorcycle Damper

1995 ◽  
Vol 209 (4) ◽  
pp. 249-262 ◽  
Author(s):  
A L Audenino ◽  
G Belingardi
Keyword(s):  
Shock Absorber ◽  
Dynamic Behaviour ◽  
Fluid Dynamic ◽  
Critical Factor ◽  
Physical Models ◽  
Vehicle Suspension ◽  
Shock Absorbers ◽  
Internal Fluid ◽  
Output Force ◽  
Dependent Behaviour

Within the context of vehicle suspension component characterization, that of shock absorbers is one of the more difficult to achieve, yet it is a very critical factor in the prediction of vehicle dynamic behaviour. Strongly non-linear output force functions are always linked to a frequency-dependent behaviour. Using the internal fluid-dynamic phenomenon with respect to a motorcycle shock absorber, different physical models of increasing complexity are presented: using these models it is possible to evaluate the importance of different factors, for example oil compressibility or oil inertia. Comparisons with experimental data confirm the validity of these models

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