Analysis of Structural and Material Aspects of Selected Elements of a Hydropneumatic Suspension System in a Passenger Car

Konieczny, Łukasz; Burdzik, Rafał; Węgrzyn, Tomasz

doi:10.1515/amm-2016-0018

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…Dari klasifikasi suspensi mempunyai beberapa jenis di setiap klasifikasinya, terutama suspensi hydraulic pneumatic yang sering dijadikan sebagai suspensi untuk kendaraan alat berat seperti yang di analisa oleh Küçük, Kahraman dari Selçuk University, Konya, Turki tentang sistem suspensi dalam meredam gaya yang ditimbulkan dari permukaan jalan serta sistem pegas yang berfungsi sebagai penyebab terjadinya rebound dari gaya yang dihasilkan dari gaya redam fluida yang terkompresi masuk melalui orifice yang mendorong gas yang bertekanan. Sistem suspensi hydraulic pneumatic hampir sama dengan sistem suspensi pada umumnya hanya saja pada pegas suspensi hydraulic pneumatic menggunakan gas yang bertekanan [3]. Sistem suspensi hydraulic pneumatic pertama kali dikenalkan oleh Paul Mag`es pada tahun 1940 [4].…”

Section: Pendahuluanunclassified

Desain Dan Analisa Performa Suspensi Hydraulicpneumatic Suspension System Kendaraan Pertanian Berbasis Mattrack

ABDILLAH,

Familiana

2024

permadi

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Indonesia is agrarian country whose people make their living as farmers, but until now still has hard to handle problem using agricultural’s technology, because the development of agricultural’s technology in Indonesia still inadequate, such as crop distribution, because some regions have texture of the ground surface is uneven, with use hydraulicpneumatic suspension and mattrack designed using SOLIDWORK is expected to be able to overcome the distribution of crop yields by adjusting Daihatsu Grandmax PU 1.3 STD. The main of this research is to see response of harmonic oscillatory sinusoidal with amplitude 0.02 m and frequency of 0.5 Hz, response of the damping force and spring force of a hydraulicpneumatic suspension using ideal PID controller. Simulation using MATLAB and Simulink to see continuous results with a time of 20 seconds. The test was carried out on the rear wheels with quarter vehicle systeml, by replacing the conventional suspension with a hydraulicpneumatic which has an orifice diameter of 2 mm and a piston of 78 mm using ASTM D 1298 oil of , for the gas accumulator it has the initial pressure and volume in both cylinders is , of with a floating piston diameter of 78 mm, produces harmonic oscillation movements of the vehicle that are smaller than the road profile conditions, and experience a stable condition at 6.2 seconds. And the maximum oscillating force produced by the mattrack is almost the same as the road profile conditions which produce good road holding.

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Section: Pendahuluanunclassified

Desain Dan Analisa Performa Suspensi Hydraulicpneumatic Suspension System Kendaraan Pertanian Berbasis Mattrack

ABDILLAH,

Familiana

2024

permadi

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“…The traditional air spring passive suspension system can realize the functions of vibration reduction and small-scale chassis adjustment [9] . However, in the face of complex conditions such as field potholes, crop plant protection with different plant heights and multi-level road driving, due to its own structure, it is unable to achieve high-performance vibration reduction and large-scale chassis clearance adjustment, and the comfort and handling performance are not good, which has a great impact on the spray stability of the boom [10,11] . The hydro-pneumatic suspension benefits from the advantages of hydraulic cylinder with accumulator for vibration reduction, large-scale damping adjustment of hydraulic system and compact structure layout, which can achieve improved vibration reduction performance and wider range chassis height adjustment function [12][13][14] , it has certain advantages in solving the problem of reducing vibration of sprayers, and has broad application prospects.…”

Section: Introductionmentioning

confidence: 99%

Optimization design of the hydro-pneumatic suspension system for high clearance self-propelled sprayer using improved MOPSO algorithm

Fan,

Yuefeng,

Changkai

et al. 2024

International Journal of Agricultural and Biological Engineering

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Large high clearance self-propelled sprayers were widely used in field plant protection due to their high-efficiency operation capabilities. Influenced by the characteristics of field operations such as high power, heavy weight, high ground clearance, and fast operation speed, the comprehensive requirements for the ride comfort, handling stability and road friendliness of the sprayer were increasingly strong. At the present stage, the chassis structure of the high clearance selfpropelled sprayer that attaches great importance to the improvement of comprehensive performance still has the problems of severe bumps, weak handling performance and serious road damage in complex field environments. Therefore, this paper proposes an optimization design method for hydro-pneumatic suspension system of a high clearance self-propelled sprayer based on the improved MOPSO (Multi-Objective Particle Swarm Optimization) algorithm, covering the entire process of configuration design, parameter intelligent optimization, and system verification of the high clearance self-propelled sprayer chassis. Specifically, chassis structure of the hydro-pneumatic suspension suitable for the high clearance self-propelled sprayer was designed, and a design method combining the improved MOPSO algorithm based on time-varying fusion strategy and adaptive update with the parameter optimization of hydro-pneumatic suspension based on this algorithm was proposed, and finally the software simulation and bench performance verification were carried out. The results show that the optimized hydropneumatic suspension has excellent vibration reduction effect, and the body acceleration, suspension dynamic deflection and tire deflection were increased by 16.5%, 9.9% and 0.9% respectively, compared with those before optimization. The comprehensive performance of the hydro-pneumatic suspension designed in this study is better than that of the traditional suspension.

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“…HP suspension is mainly used where vehicle height adjustment is required [10], where there is limited space to install system components, where there is a need to lock the suspension, and where a change in suspension stiffness is required. For this reason, this type of suspension is often used…”

Section: Introductionmentioning

confidence: 99%

Hydropneumatic suspension testing of a wheeled armoured personnel carrier

Hryciów¹,

Rybak²,

Wojciechowski³

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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The purpose of this study was to determine the effect of gas pressure and temperature on the spring characteristic of a HP strut used in a wheeled armoured personnel carrier. The research was performed based on a simulation model. Data to validate the model were obtained during experimental tests. The results indicate, among other things, that the friction generated in the seals is an important source of resistance force. Comparison of the simulation results with the measured characteristics indicates a proper modelling of the strut operation. Simulation studies have indicated that it is easy to modify the required suspension parameters by adjusting the initial gas pressure. A linear effect of pressure on static deflection can be assumed. Temperature has a strong influence on the spring characteristic. When it changes, significant changes in vehicle height are observed due to the lack of a compensation system. The temperature changes are not only due to changes in ambient temperature, but also by intense heating of the HP struts caused by the vehicle moving over rough terrain.

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Analysis of Structural and Material Aspects of Selected Elements of a Hydropneumatic Suspension System in a Passenger Car

Cited by 9 publications

References 10 publications

Desain Dan Analisa Performa Suspensi Hydraulicpneumatic Suspension System Kendaraan Pertanian Berbasis Mattrack

Desain Dan Analisa Performa Suspensi Hydraulicpneumatic Suspension System Kendaraan Pertanian Berbasis Mattrack

Optimization design of the hydro-pneumatic suspension system for high clearance self-propelled sprayer using improved MOPSO algorithm

Hydropneumatic suspension testing of a wheeled armoured personnel carrier

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