2,839 Hits in 11.2 sec

Review on vibration quality improvement of a passenger seat

Malika Perera, Mohamed Rikaz, Asith Abeysinghe
2019 Vibroengineering PROCEDIA  
Suspension systems, seat cushion and sitting postures are some of the vital parameters that have huge impacts on comfort analysis.  ...  Human structure, as a mechanical system, is immensely complex and the mechanical properties of human body readily undergo change.  ...  Measured values indicate that active suspension system has better potential than the passive suspension system to increase both comfort and road holding.  ... 
doi:10.21595/vp.2019.20590 fatcat:zrzzu5lxibb4lfosbwhmudsk3u

Optimal Seat and Suspension Design for a Half-Car with Driver Model Using Genetic Algorithm

Wael Abbas, Ashraf Emam, Saeed Badran, Mohamed Shebl, Ossama Abouelatta
2013 Intelligent Control and Automation  
This paper presents an optimal vehicle and seat suspension design for a half-car vehicle model to reduce human-body vibration (whole-body vibration).  ...  For validation, the solution obtained by GA was compared to the ones of the passive suspensions through sinusoidal excitation of the seat suspension system for the currently used suspension systems.  ...  Acknowledgements This research is a part of a project titled "Optimal seat suspension design for a quarter-car with human-body model using genetic algorithms".  ... 
doi:10.4236/ica.2013.42024 fatcat:kn36zuxpojderarhjsfuib3ilm

The control of an active seat with vehicle suspension preview information

Abdulaziz Alfadhli, Jocelyn Darling, Andrew J Hillis
2017 Journal of Vibration and Control  
Finally, the performance of the active seat suspension Page 2 of 31 is analysed and compared to a passive system, demonstrating significant acceleration attenuation of more than 10 dB across a broad frequency  ...  The objective function optimises ride comfort in terms of the Seat Effective Amplitude Transmissibility (SEAT) factor, taking into account constraints on both the allowable seat suspension stroke and actuator  ...  long-term vibration can be harmful to human health.  ... 
doi:10.1177/1077546317698285 fatcat:fv7y35sxlzeidcjokxc3vaak2e

Vertical vibration attenuation for truck's suspension seat by adjusting air spring stiffness

Pornporm Boonporm, Kriattisak Houdjaroen, Thanarat Baumart
2019 Vibroengineering PROCEDIA  
Our study deals with the vibration isolation at the suspension seat to reduce the human body's harmfulness from the oscillation.  ...  The passive suspension cannot overcome the problem, but the active suspension is too complicate and expensive for this system.  ...  The vertical acceleration transmitted from the road roughness over the vehicle suspension and body through the seat and the human's body, causing to long-term health problem and physical harmfulness.  ... 
doi:10.21595/vp.2019.20709 fatcat:zfcjexzm3zebpcgqb4utr4yase

Parametric Optimization and Experimental Validation for Nonlinear Characteristics of Passenger Car Suspension System

Avesh Mohd, Rajeev Srivastava
2019 Periodica Polytechnica Transportation Engineering  
The developed passive design of car suspension system exhibits excellent vibrational characteristics and convinces the acceptable range of vehicle vibration as suggested by ISO-2631-1997.  ...  The design of experiments gives the optimum parametric combination in the domain on the basis of vertical body acceleration data obtained by simulation of a 2-DOF nonlinear quarter car model.  ...  Presented work, is focused on the optimum design of a conventional suspension system with reduced experimentation time and cost.  ... 
doi:10.3311/pptr.12999 fatcat:h2uvv2zrkfajhhyt3b4cr2ermy

Computer-Based Analysis of the Stochastic Stability of Mechanical Structures Driven by White and Colored Noise

Aydin Azizi
2018 Sustainability  
noise on active suspension system.  ...  The goal of this paper is to design an effective Proportional Integral Derivative (PID) controller, which will control the active suspension system of a car, in order to eliminate the imposed vibration  ...  For example, when ozone levels increase in lower elevations, it can have a direct impact on human health, including harming the respiratory system.  ... 
doi:10.3390/su10103419 fatcat:w4k3u2v25reanf4nh7wtyp2wsm

Review on Seat Suspension System Technology Development

Alireza Heidarian, Xu Wang
2019 Applied Sciences  
Active, passive and semi-active suspension systems are employed in vehicle seats to alleviate the harmful and damaging effects due to the transmitted vibration to the human body.  ...  Operators of either on-road or off-road vehicles are regularly subjected to an extended variety of various vibration levels, especially at low frequencies.  ...  Funding: This research was funded by Australian Research Council grant number LP160100132. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app9142834 fatcat:td2l2qlyv5hsvjz4tetxpw4xyu

Time-Delay Vibration Reduction Control of 3-DOF Vehicle Model with Vehicle Seat

Kaiwei Wu, Chuanbo Ren, Yuanchang Chen
2021 Applied Sciences  
excitation, compared with active suspension and passive suspension based on inverse control.  ...  Vehicles driving on the road continuously suffer low-frequency and high-intensity road excitation, which can cause the occupant feelings of tension and dizziness.  ...  Utilizing a device generating an active force, it can actively suppress the impact of uneven road surfaces on the car body.  ... 
doi:10.3390/app11209426 fatcat:75qbdhvmjjdlvajyseqrb7vmti

A State-Of-The-Art Review of Car Suspension-Based Piezoelectric Energy Harvesting Systems

Doaa Al-Yafeai, Tariq Darabseh, Abdel-Hamid I. Mourad
2020 Energies  
Meanwhile, the main concentration is harvesting energy from a vehicle suspension system.  ...  The paper will also shed light on the variety of potential applications of the harvested energy.  ...  Their focus was on the active suspension system, while our focus is on the passive suspension system.  ... 
doi:10.3390/en13092336 fatcat:u2mq4xlponcghlwuriw4ef6q6a

Vibration damping of the anti-vibration platform intended for use in combination with audio/music devices

Łukasz Breńkacz, Paweł Bagiński, Jarosław K. Korbicz
2020 Journal of Vibroengineering  
The design of this platform is unique and has been developed by applying several technical solutions in a combination not found on any other anti-vibration platform on the audio market.  ...  The article presents research on the damping properties of an anti-vibration platform (designed and manufactured by Stacore), which is intended for use in combination with high class audio devices.  ...  It turned out that the anti-vibration system was able to reduce vibrations caused by road traffic.  ... 
doi:10.21595/jve.2019.20846 fatcat:3ha7sr2ijjafjp52troo2o36ja

Review on Development of High-Static–Low-Dynamic-Stiffness Seat Cushion Mattress for Vibration Control of Seating Suspension System

Linchuan Guo, Xu Wang, Rang-Lin Fan, Fengrong Bi
2020 Applied Sciences  
is lower than that of the active and semi-active control system, and the relative simplicity of adding a vibration isolation cushion mattress in an existing passive seating suspension system makes it  ...  Advantages and disadvantages of different vibration isolation techniques will be compared in order to find an innovative method to reduce seating suspension system vibration and improve the ride comfort  ...  Furthermore, the research aims to alleviate the harmful and damaging effects of the transmitted vibration on the human body through investigating the passive seating suspension system and its vibration  ... 
doi:10.3390/app10082887 fatcat:gofr3nirhvbhrka6exrq3vg4oy

Surveying Off-Board and Extra-Vehicular Monitoring and Progress Towards Pervasive Diagnostics [article]

Joshua E. Siegel, Umberto Coda
2021 arXiv   pre-print
We survey the state-of-the-art in offboard diagnostics for vehicles, their occupants, and environments, with particular focus on vibroacoustic approaches.  ...  We close by exploring the particular application of vibroacoustic monitoring to vehicle diagnostics and prognostics and propose the introduction of automated vehicle- and context-specific model selection  ...  Occupant Monitoring Many automotive incidents resulting in injury or harm to property result from human activity.  ... 
arXiv:2007.03759v2 fatcat:eyo7y4pplbdihgfpdj2sytcezi

Overview of modern contributions in vehicle noise and vibration refinement with special emphasis on diagnostics

Dejan Matijevic, Vladimir Popovic
2017 FME Transaction  
The influence on human body is processed and certain noise and vibration analyzers are presented.  ...  The first, practical aspect was used toward structuring of the acquired knowledge and relationships, required for proper problem diagnosis. On the other hand, advanced signal analyses are considered.  ...  The occurrence of resonance has a significant role in both many physical processes and in the assessment of harmful effects on human health.  ... 
doi:10.5937/fmet1703448m fatcat:dtez4nssaffzragtbcsjkis2qe

Smart wearable devices for human exposure vibration measurements on two-wheel vehicles

Marco Carratù, Antonio Pietrosanto, Paolo Sommella, Vincenzo Paciello
or wear of the road surface as well as by the aerodynamic influence and high-frequency rotation of the motorcycle engine.  ...  A suitable measurement system has been designed and tested using a real motorcycle.  ...  The measurement system described could also be used for the evaluation of the vertical vibration reduction introduced by a semi-active suspension system [28] instead of the classical suspension system  ... 
doi:10.21014/acta_imeko.v9i4.727 fatcat:ubgbrvi4cfcl5dbmts43gbjmji

Trends in Rubber Parts for Automobiles

Tetsunori Haraguchi
of the suspension and steering systems.  ...  Act took effect in the United States, better combustion control technology, catalytic converter systems, and better quality fuels have reduced the amounts of harmful substances in exhaust emissions to  ... 
doi:10.2324/gomu.79.103 fatcat:vewsvgvnejck3ludpmvdqhev5e
« Previous Showing results 1 — 15 out of 2,839 results