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Journal articles on the topic 'Stricture analysis of seat'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

C., D. PATIL, and D. PATIL R. "DESIGN & ANALYSIS FOR STRENGTH OF SCHOOL BUS SEAT TO AVOID THE FAILURE." JournalNX - a Multidisciplinary Peer Reviewed Journal 3, no. 6 (2017): 22–25. https://doi.org/10.5281/zenodo.1420999.

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Advanced manufacturing engineering is a move towards to build an object with the insertion of all technical features including sturdiness and safety. In automobile manufacturing approach, it can be a great opportunity to save life of inhabitant if safety parameters were intended successfully. Business commuter vehicles can carry several people at a time, and if accident happens, numerous people can die overall. These types of vehicle can have impact from different sides i.e. front, side, rear etc. Among these types of collisions impact of frontal collision is the most ruthless. In front impact

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2

Rindel, Jens Holger. "Acoustical aspects of the development of Greek theaters in the 4th century B.C.E." Journal of the Acoustical Society of America 157, no. 3 (2025): 2042–66. https://doi.org/10.1121/10.0036255.

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In ancient Greece, the 4th century B.C.E. was a time of rapid development in arts, culture, science, politics, and theater architecture. The first part of this article describes the origin and use of the Greek theater building and its connection to the Dionysus cult and festivals with musical and drama competitions. Next, scientific context is discussed as a background regarding the highly skilled architects who designed these theaters. The 4th century B.C.E. is characterized by the blooming of the sciences, especially mathematics, strongly stimulated by Plato's Academy near Athens. The archit

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3

Lynch, J. M., C. T. Albanese, M. P. Meza, and E. S. Wiener. "Intestinal stricture following seat belt injury in children." Journal of Pediatric Surgery 31, no. 10 (1996): 1354–57. http://dx.doi.org/10.1016/s0022-3468(96)90826-x.

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Satria, Romi, Ka Ho Tsoi, Maria Castro, and Becky P. Y. Loo. "A Combined Approach to Address Road Traffic Crashes beyond Cities: Hot Zone Identification and Countermeasures in Indonesia." Sustainability 12, no. 5 (2020): 1801. http://dx.doi.org/10.3390/su12051801.

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Addressing fatalities on road is a major concern in most countries in the world. South-East Asian countries are no exception. In Indonesia, three persons die on road every hour. Understanding where and how road traffic crashes happen is imperative before the most efficient countermeasures can be devised and implemented. In this paper, three tools—hot spots, hot zones and hot clusters—are used to identify sections of two main highways in the Province of Aceh that require most urgent action. Many countermeasures have been developed to address the problem of black sites (hot spots). Examples of i

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Ueda, Shiro, Yasuhito Hara, Reijiro Kiriishi, et al. "Post-traumatic delayed stricture of small bowel after seat belt injury." Nihon Kyukyu Igakukai Zasshi 7, no. 2 (1996): 91–96. http://dx.doi.org/10.3893/jjaam.7.91.

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Piangpen, P., and C. Attapon. "Trooper Seat Attachment Design and Analysis." Applied Mechanics and Materials 704 (December 2014): 98–101. http://dx.doi.org/10.4028/www.scientific.net/amm.704.98.

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In order to protect the army troopers, it is important to consider the assessment of hazardous areas in the military vehicle, attacked by the enemy. For armored vehicles, the design, analysis, and test of explosive seat protection are significant to ensure the trooper survivability. Particularly, we note that the significant factor affecting the trooper survivability is ability of trooper seat to absorb shock generated by the explosion. Therefore, this research focused on the design and analysis of trooper seat attachment for armored vehicles. The research proposed various designs of the troop

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Hu, Cai Qi. "Performance Analysis and Improvement Design of School Bus Seat Based on Workbench." Applied Mechanics and Materials 477-478 (December 2013): 99–104. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.99.

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In order to make the school bus seat structure meet the seat safety standards, in this paper the finite element simulation analysis method was adopted to establish the finite element model of the school bus seat frame. Based on this model, respectively, at two different height of seat, and two different numerical test forces were applied to the school bus seat, and in two cases the performances of the seat frame were analyzed and its safety was evaluated. For the analysis result improvement design and modal analysis were conducted, and all those ensure the seat performance to meet standards of

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Lin, Jui Chang, Bean Yin Lee, Yuan Chuan Hsu, King Sun Lee, and Feng Tsai Weng. "Strength Analysis and Safety Design of Baby Car Seat." Applied Mechanics and Materials 224 (November 2012): 252–55. http://dx.doi.org/10.4028/www.scientific.net/amm.224.252.

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After the automobile made an emergency brake or bumped by accident, the baby car seat will be deformed and cracked by great force, the baby car seat have became a very important topic for years. This study focuses on analyzing the state of baby car seat after receiving forces, propose the improvement of structure strength and safety factors, enhance the structural strength of baby car seat and improve collision resistance. The internal skeleton was a backbone of baby car seat structural design, this research utilized simulation that combined CAD software (Pro-E) with finite element analysis so

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Ndiaye, Modou, Ndiaga Seck Ndour, Omar Gaye, et al. "INTERNAL ENDOSCOPIC URETHROTOMY FOR URETHRAL STRICTURES : EVALUATION OF RESULTS AND INFLUENZATING FACTORS." International Journal of Advanced Research 8, no. 12 (2020): 1100–1104. http://dx.doi.org/10.21474/ijar01/12259.

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Objective: To describe the clinical aspects of urethral strictures managed internal endoscopic urethrotomy (IEU) and to evaluate the outcomes and factors on success rate. Patients and methods:This is a retrospective, descriptive, analytical and monocentric 2-year study of patient records with an IEU indicated for urethral stricture. The parameters studied were: age, history of endo-urethral maneuvers, clinical symptomatology,etiologies, strictures characteristics and outcomes. The outcomes were appreciated by the quality of the voiding jet and the outcomes of the control rÃƒÂ©trograde urethroc

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10

Song, Hao, Liyou Xu, Xiaoliang Chen, Weizhen Wei, and Kui Liu. "Static and dynamic performance analysis of scissor seat of combine harvester." Journal of Physics: Conference Series 2125, no. 1 (2021): 012042. http://dx.doi.org/10.1088/1742-6596/2125/1/012042.

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Abstract This paper takes the scissor type seat of a domestic combine harvester as the research object, uses CATIA software to carry out three-dimensional modeling of the seat, and then imports the seat model into ANSYS Workbench software for static analysis and modal analysis, so as to judge whether the scissor type seat of the combine harvester meets the design requirements. The results of static analysis show that the maximum stress of the seat under the two different loads is less than the yield strength of the material, and the overall strength of the seat meets the design requirements. T

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Zhang, Xinjie, Chunlei Wang, Konghui Guo, Ming Sun, and Qilin Yao. "Dynamics modeling and characteristics analysis of scissor seat suspension." Journal of Vibration and Control 23, no. 17 (2015): 2819–29. http://dx.doi.org/10.1177/1077546315622888.

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Scissor seat suspension is used widely for attenuating the cab vibration of commercial vehicles, and obtaining its dynamics characteristics accurately is the basis of scissor seat suspension optimization, control and development. As a result, this paper focuses on the scissor seat suspension dynamics modeling and characteristics analysis. Firstly, the scissor seat suspension constraint dynamics equations are derived according to the detailed physical structure. Then, a numerical algorithm with the Baumgarte is proposed to solve the derived multi-body dynamics model which considers the correlat

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12

Yang, Qi Zhi, Guo Quan Huang, Chen Long, and Xiao Bing Zhu. "Kinematic Analysis and Simulation on Parallel Vibration Reduction Seat." Key Engineering Materials 464 (January 2011): 195–98. http://dx.doi.org/10.4028/www.scientific.net/kem.464.195.

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Vibration of vehicle system is a typical vibration of multi-degree freedom. The damping performance of multi-degree freedom seat suspension is important to ride comfort of vehicle occupants. Based on the multi-dimensional movement principle of parallel mechanism, it is built a new vehicle seat with 3-DOF suspension. It is Established a kinematics model and then analyzed the theory of the displacement of the parallel vehicle seat system. Finally, using ADAMS software to build the simulation models of seat suspension, it is showed that the seat vibration system has a good effort on vibration red

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Wang, Haiting, Senlei Ma, Yu Peng, and Changning Liu. "Performance Analysis of Seat Inertial Suspension Vibration Suppression and Energy Harvesting for Electric Commercial Vehicles." World Electric Vehicle Journal 16, no. 4 (2025): 216. https://doi.org/10.3390/wevj16040216.

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This study examines the efficacy of a seat inertial suspension system in relation to vibration isolation and energy recovery in electric commercial vehicles. The research focuses on the structural modifications of the suspension system that arise from the incorporation of an inerter, a novel vibration isolation component. A dynamic model of the seat inertial suspension is constructed, which includes two different structures consisting of components connected in parallel and in series. The analysis explores how the absorption of suspension parameters affects both seat comfort and the characteri

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14

Hu, Lingling, Onder Tor, Liming Shen, Jilei Zhang, Franklin Quin, and Xiaohong Yu. "Cushioning capability analysis of seat foundations considering the sitter’s anthropometric dimensions." BioResources 15, no. 4 (2020): 7992–8007. http://dx.doi.org/10.15376/biores.15.4.7992-8007.

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Sitting comfort is primarily determined by the cushioning capability of the seat foundation. Limited literature has been found related to the effects that different sized human buttocks had on the cushioning capability of the seat foundation. Moreover, there is no testing method specialized to measure the load-deformation behavior of foam cushions that imitates the sitting behavior between indenters with different sizes and seat support. This study investigated the effects of various indenter diameters (20 cm, 30 cm, 36 cm, 41 cm, 51 cm, and 58 cm), foam stiffness levels (high and low), and se

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15

Li, Yun Tang, Qin Qin Pan, Jun Li, and Chang Xu. "Kinematics and Dynamics Analysis of an Innervation Seat Based on ADAMS." Applied Mechanics and Materials 55-57 (May 2011): 1047–52. http://dx.doi.org/10.4028/www.scientific.net/amm.55-57.1047.

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As a new type of entertainment venue, four-dimensional cinema can make the effects of rock, collision and weightlessness using innervation seat controlled by a computer. At the same time, audience can feel the film scene such as storm, thunder, rain, bounce, spray and beating in the cinema. So the performance of innervation seat directly influences the effects of a four-dimensional cinema. In this paper, a compact innervation seat driven by four air cylinders is designed. The kinematics and dynamic characteristics of the seat are analyzed based on Adams. Then, the modal characteristics of the

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16

Li, Junjie, and Chen Zang. "Effect Analysis of Different Use Ways of a Q10 Child Seat." Academic Journal of Science and Technology 12, no. 3 (2024): 20–28. http://dx.doi.org/10.54097/raqk6j21.

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In this paper, the injury situation of Q10 child dummy was optimized and analyzed by analyzing the impact of different ways of using a certain child seat ,and analyzing the crash test data of a real car based on LS-DYNA crash simulation analysis software after the vehicle benchmarking, by elaborating on the protection of child occupants in different ways of using this type of child seat, so as to provide a reference for the development of child restraint system of new cars. The results show that: Regardless of whether this type of child seat has an optional seat back, adding seat belt Secure G

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17

Kernytskyy, Ivan, Yevheniia Yakovenko, Orest Horbay, et al. "Development of Comfort and Safety Performance of Passenger Seats in Large City Buses." Energies 14, no. 22 (2021): 7471. http://dx.doi.org/10.3390/en14227471.

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A bus seat needs to be designed ergonomically for better seating comfort. The present study is intended to develop a cost-effective ergonomic bus seat design based on seat comfort and safety demands. As part of the proposed seat design procedure, seating comfort analysis, identifying preferred design features, and developing a seat design are included. An analysis of the bus seat back and seat pan profiles was conducted. Based on the results of the comfort analysis, the authors identified the preferred design features of bus seats during the design identification process. An improved bus seat

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18

Jiang, Fan. "Piston Contact Stress Analysis and Simulation." Advanced Materials Research 941-944 (June 2014): 1432–36. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1432.

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Contact stress and Pull-out stress formatted by piston and the valve seat directly affects the piston seal and friction wear performance. It is of great realistic significance to study on distribution of the contact stress and the assembly relationship between piston and valve seat. Finite element analysis methods were used to obtain the distribution of the contact stress in static and dynamic conditions. Problem of piston size selection was analyzed between different assembly interferences. Simulation results indicate that contact surface average Mises stress of valve seat was about equal to

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19

Rabbani, Ariq Naufal, Ken Risa Ayu Ndaru Ningrum, Alvin Widjaya, and Farid Triawan. "The Design and Analysis of a Child Seat for a Motorcycle." Journal of Mechanical Engineering and Mechatronics 5, no. 2 (2020): 101. http://dx.doi.org/10.33021/jmem.v5i2.1059.

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<p>This paper discusses the methodology of design and analysis of a child seat for motorcycles. After realizing the dangers of an unrestrained child in motorcycles, this seat offers a solution to the problem. The seat features sliding beams that allow the user to access the under-seat compartment of the motorcycle and the fuel tank, without requiring any disassembly of the child seat. The dimensions are measured and considered when designing in a graphical application. Once the assembly drawing is completed, the seat is analyzed to identify critical parts of the seat to ensure failure do

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20

Wretenberg, P., UP Arborelius, L. Weidenhielm, and F. Lindberg. "Rising from a chair by a spring-loaded flap seat: a biomechanical analysis." Journal of Rehabilitation Medicine 25, no. 4 (1993): 153–59. http://dx.doi.org/10.2340/165019771993153159.

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Nine healthy male subjects and 8 patients with unilateral knee osteoarthrosis were studied while rising from a chair with and without the aid of a spring-loaded flap seat. The seat force started at 216 N and decreased with increasing seat angle. Ground reaction forces and motion were recorded using a force plate and video. EMG of the left vastus lateralis muscle was recorded. The effort when rising was estimated by the Borg scale. The use of the flap seat reduced the mean peak knee moment for the healthy subjects from 73 to 41 Nm and for the patients from 55 to 33 Nm. The decreases were signif

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21

Min, Hequn, and Yitian Liao. "Mechanism Analysis of the Influence of Seat Attributes on the Seat Dip Effect in Music Halls." Applied Sciences 11, no. 20 (2021): 9768. http://dx.doi.org/10.3390/app11209768.

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The seat dip effect (SDE) is an acoustic phenomenon of low-frequency band attenuation that occurs in the music halls when the sound of the music passes at a near grazing incidence over the seats. In this paper, the numerical simulations on the basis of the finite element method are conducted to study the influence of seat attributes (seat height, seat spacing and seat absorption) on the SDE and the corresponding mechanism. The mapping of sound spatial distribution related to the SDE is employed to observe the behavior of sound between the seats. The results show that the dip frequency of the S

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22

Yaltıraklı, Mehmet Berkay, and Okan Gül. "Office Seat Design And Analysis." International Conference on Applied Engineering and Natural Sciences 1, no. 1 (2023): 900–906. http://dx.doi.org/10.59287/icaens.1107.

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An office seat, or work chair, is a type of chair that is designed for use at a desk in an Office. Usually a padded back, a padded seat, arm that enables us to rest and the back of the chair has wheels. Office seats presently, in offices, hospitals and homes, in many places It is a product we come across. The thing that makes this product so popular compared to the chair casual/comfortable and has provided the ability to move that is. Related to working life according to the results of the review, especially for employees in small and medium-sized organizations they spend more than sitting for

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23

Karwala, Łukasz. "Analysis of the selection of a child seat." Archives of Automotive Engineering – Archiwum Motoryzacji 101, no. 3 (2023): 86–95. http://dx.doi.org/10.14669/am/172370.

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The selection of a child seat is not an easy task for future parents. Information about child seats, assembly methods, usability and prices affect the purchasing preferences of parents or legal guardians of children. The article contains information about the factors to pay attention to when buying a child seat. The main purpose of the article is to analyze and evaluate information on the selection of a vehicle seat for the right passenger vehicle and child. The article discusses information about the ADAC child seat crash test and the plus test, which are mainly performed for rear-facing chil

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24

Heo, Uk, Sun-Kyu Kim, Myung-Jun Song, In-Young Yang, and Kwang-Hee Im. "Effectiveness evaluation for seat parts by seat belt anchorage strength analysis." International Journal of Precision Engineering and Manufacturing 12, no. 6 (2011): 1031–34. http://dx.doi.org/10.1007/s12541-011-0137-1.

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25

Siwadamrongpong, Somsak, Supakit Rooppakhun, Pakorn Burakorn, and Natchaya Murachai. "Strength Analysis of the Seat Structure for Large Passenger Vehicles by Using Finite Element Method." Advanced Materials Research 658 (January 2013): 335–39. http://dx.doi.org/10.4028/www.scientific.net/amr.658.335.

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Presently, large passenger vehicles are known to have high risk of an injury due to accident and insufficient of safety regulation. The strength of seat is one of important issues that affect to injury level of passenger. Therefore, suitable structure strength and design of the seat are very important to prevent injuries and passenger life. This study was to evaluate strength of the seat structure for bus according to preliminary safety regulation of Department of Land Transport. Finite element analysis is employed by using a static load. The seat model was simplified and simulated. Stress and

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Majid, Noor Aliah binti Abdul, Mohd Fareez Edzuan Abdullah, Mohd Syahmi Jamaludin, Mitsuo Notomi, and John Rasmussen. "Musculoskeletal Analysis of Driving Fatigue: The Influence of Seat Adjustments." Advanced Engineering Forum 10 (December 2013): 373–78. http://dx.doi.org/10.4028/www.scientific.net/aef.10.373.

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Main causes for discomfort experienced by vehicle drivers during driving were investigated using a rigid-body model originally developed in the AnyBody Modeling System [. The interactions between the human body and the car-seat in various combinations of seat-pan/backrest inclinations and the effect of pedal spring stiffness were analyzed using an inverse dynamics approach. To deal with the muscle redundancy problem, (i.e. the problem with the human-body containing more muscles than necessary to drive its degrees of freedom) a minimum-fatigue criterion [ was utilized. The results show that var

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27

Pawar, Prathmesh, and Prof Gayatri S. Patil. "Design and Analysis of Driver Seat Suspension System." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (2023): 1470–76. http://dx.doi.org/10.22214/ijraset.2023.53849.

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Abstract: Over the years, the vehicle driver has endured a great deal of agony and anguish as a result of poor road conditions or lengthier travel lengths that they must complete within a certain time limit. It is a misery to them that the standard or budget vehicles do not feature a good suspension system for their wellbeing. This research article demonstrates a unique design of scissor seat suspension for vehicles, as well as models for manufacturing and testing the system to eliminate low-frequency and high-amplitude vibrations that might cause health problems for vehicle drivers or passeng

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Liu, Jun, Xiang Wang, Xue Rong Zhang, and Xiao Dong Cheng. "Booster Seat Dynamic Parameter and Damage Analysis." Advanced Materials Research 718-720 (July 2013): 1579–84. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1579.

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In order to reduce the rate that child passengers injury their chest and head in a collision, parameter analysis of child restraint system is performed. Based on multi-body dynamics software MADYMO, child occupant crash simulation model is built. In accordance with the laws and regulations, the validity of the model is verified. Damage criterions, such as head the centroid synthesis of acceleration, HIC36 and resultant chest acceleration, are used to analyze the influence of different coefficients on childs injury, including friction between booster seat and vehicle seat, safety belt stiffness

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Peng, Yan, Liang Yu Zong, Liu Feng Hao, and Qi Yang Li. "Ball Valve Seat Design Method Based on Finite Element Analysis and Calculation." Applied Mechanics and Materials 551 (May 2014): 331–36. http://dx.doi.org/10.4028/www.scientific.net/amm.551.331.

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The face of the valve seat sealing surface design, the finite element analysis and calculation of ball valve seat sealing surface and angle of the design method is studied. Through 3D CAD technology for ball valve design, guide 3D design model to finite element analysis software to calculate ,reveal the sealing load distribution of pressure in the valve seat sealing surface, sealing pressure values are obtained, through the valve seat sealing surface design Angle analysis, to obtain the optimal value of sealing surface angle.

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Patrícia Silva, Eurico Seabra, Patrícia Silva, Eurico Seabra, and Joaquim Gabriel Mendes Joaquim Gabriel Mendes. "COMFORT ANALYSIS COMPARISON BETWEEN ALFAPENDULAR AND INTERCITY PORTUGUESE TRAINS AT THE NORTH RAIL." PIRETC-Proceeding of The International Research Education & Training Centre 27, no. 06 (2023): 206–13. http://dx.doi.org/10.36962/piretc27062023-206.

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Nowadays, trains are one of the most used public transportation modes. Comfort is the key to keeping and attracting new users. Vibration highly influences comfort levels and, once it is derived from the train motion it is stated as a primary concern. Due to contact with the seat and floor, passengers are subjected to whole-body vibration. ISO 2631 standard is fully dedicated to the evaluation of this type of vibration. Following its approach, the present research evaluates the comfort levels of Alfapendular and Intercity trains operating in Portugal at the Porto Campanhã – Lisbon Oriente conne

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Siwadamrongpong, Somsak, Supakit Rooppakhun, Natchaya Murachai, and Pakorn Burakorn. "Strength Analysis of the Seat Anchorages for Large Passenger Vehicles Using Finite Element Method." Advanced Materials Research 658 (January 2013): 340–44. http://dx.doi.org/10.4028/www.scientific.net/amr.658.340.

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Since the vehicle accident is one of the major causes of dead and injury in Thailand, especially the large passenger vehicle. The seat anchorage was often damaged and lead to high number and critical of patient. To improve the safety of large passenger vehicle, seat anchorage should be investigated. The aim of this research was to analyze strength of seat anchorages for the bus according to European standard ECE Regulation 80 using finite element method and DOE(Design of Experimental) approach. In this study, the boundary conditions on finite element model of seat structure were defined accord

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Badipati, Raju, Lakshmi Durga Kasinikota, Kushal Gunturu, and Syed Mazhar Galib Ali. "Delayed presentation of an entrapped small bowel loop stricture in a case of seat belt injury with the seat belt sign: laparoscopic resection and anastomosis." International Journal of Gastrointestinal Intervention 13, no. 1 (2024): 26–28. http://dx.doi.org/10.18528/ijgii230017.

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Wu, Wen Yu, Cheng Qi Xue, and Lin Dong Liu. "Characteristic Parameters of Cushion in High-Speed Train (CRH) Contribute to Seat Pressure Distribution Analysis." Applied Mechanics and Materials 397-400 (September 2013): 593–98. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.593.

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Based on the seat cushions in high-speed train, three main characteristic parameters, surface angle, width and height are involved in this simulation experiment analysis. With this CAE method, a standard buttocks model fit to seat cushion is imported, and the study on seat pressure distribution is taken through characteristic parameters of seat cushions related to different concave surfaces using ANSYS’s finite element analysis, and contribute to much flexible and more adjustable feature points, use seat pressure distribution to determine geometric parameter according to maximum pressure point

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Błażejewski, Andrzej, and Sebastian Głowiński. "Evaluation of vehicles’ active seat suspension system using wavelet analysis." Noise & Vibration Worldwide 51, no. 10 (2020): 176–85. http://dx.doi.org/10.1177/0957456520924813.

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In this work, the dedicated test stand was applied to investigate the human body–vehicle seat system. The particular signals were measured by accelerometers placed on the seat and the human head. The horizontal vibrations were applied as the input to the system. As an alternative to the classical Fourier approach, the wavelet transfer function was introduced to describe the effectiveness of particular seat suspension. The human head reaction was investigated as the system output.

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Gao, Shun Xi, Shu Guo Zhao, and Li Fang Zhao. "Structural Analysis and Optimization Design of Motor Hanging Seat Structural Based on Pro/ENGINEER." Applied Mechanics and Materials 380-384 (August 2013): 39–42. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.39.

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This paper establishes a parametric model on the motor hanging seat structure by pro / ENGINEER software, and then optimizes the structure of the hanging seat by the weight of the hanging seat as the objective function. Taking into account the stress and displacement constraints in the optimization process, the weight of the hanging seat is greatly reduced after being optimized. It is practical significance to save a large amount of raw materials for the mass production and to reduce production costs and create higher economic efficiency.

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Zuska, Andrzej, Damian Frej, Jerzy Jackowski, and Marcin Żmuda. "Research and Analysis of the Propagation of Vertical Vibrations in the Arrangement of a Vehicle Seat—A Child’s Seat." Sensors 21, no. 24 (2021): 8230. http://dx.doi.org/10.3390/s21248230.

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This paper deals with the issues of the impact of vertical vibrations on a child seated in a child seat during a journey. Its purpose was to assess the impact of fastening the child seats and road conditions on the level of vibrations recorded on child seats. The paper describes the tested child seats, the methodology of the tests and the test apparatus included in the measuring track. The tests were carried out in real road conditions where the child seats were located on the rear seat of a passenger vehicle. One was attached with standard seat belts, and the other with the ISOFIX base. When

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Xu, Zhi Wei, Zhong Qi Sheng, Hong Hong Zhang, and Yong Xian Liu. "Car Seat Backrest Static Strength Experiment and Simulation." Applied Mechanics and Materials 16-19 (October 2009): 178–82. http://dx.doi.org/10.4028/www.scientific.net/amm.16-19.178.

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According to the characteristics of car seat structure and the distribution of car seat load, the finite element static strength model of the car seat is constructed in this paper. The model contains shell elements and beam elements. Some seat structure elements such as welding connection, screw connection, pin connection are simplified in the model. Simulation analysis of the static characteristics of car seat backrest frame model is carried out. At the same time, the experimental research on the static strength characteristics of the back seat is made by the measurements of non-electric phys

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El Refai, Bahia S., and Patrick J. Naughton. "Numerical analysis of stress concentration around bridge bank seat in Geosynthetic Reinforced Soil – Integrated Bridge Systems (GRS-IBS)." IOP Conference Series: Materials Science and Engineering 1260, no. 1 (2022): 012037. http://dx.doi.org/10.1088/1757-899x/1260/1/012037.

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Abstract Geosynthetic Reinforced Soil – Integrated Bridge Systems involve directly supporting the bridge abutment bank seat on the top of a reinforced soil structure without piles or bridge bearings. Analysis, using Plaxis 2D, found that the arrangement of geogrid in the upper part of the reinforced soil abutment, the distance of the abutment bank seat from the wall face and the direction of horizontal load application were important considerations in controlling the deformational response of the abutment. Placing the bank seat further away from the wall face reduced wall displacement, peak ve

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Qiao, Yu, Changjiang Du, Yunpeng Cong, Zeyang Tian, Shuhang Wang, and Zhun Zhao. "Research on seat perceived comfort evaluation based on factor analysis." E3S Web of Conferences 260 (2021): 03019. http://dx.doi.org/10.1051/e3sconf/202126003019.

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Car seat is one of the most important parts of the direct contact with consumers, consumers' subjective perception of seat comfort depends on the choice of car, and the automobile industry in the perception of car seat comfort evaluation and research work, is still in its infancy, convened by the project through to the six major cities, 900 consumers respectively for 18 to subjective comfort evaluation of standard models, this article selects three same level models of standard models, for example, through the factor analysis method to calculate the subjective comfort ratings, and use the obje

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Frej, Damian, Andrzej Zuska, and Karin Cadge. "Analysis of vertical vibrations affecting a child transported in a child seat during a car passing over the release speed bump." Archives of Automotive Engineering – Archiwum Motoryzacji 86, no. 4 (2019): 111–25. http://dx.doi.org/10.14669/am.vol86.art8.

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The article presents the results of research on the assessment of vibrational comfort of children carried in child seats. The work analyzes the impact of the child's mass and the speed of the car passing through the speed bump on the level of vibration to which the passenger (child) transported in the child seat mounted on the rear seat of the car is exposed. The tested car seats were installed in a passenger car using the ISOfix base. During the tests, the measured values were the acceleration of the seat child seat, the backrest of the child seat, the rear seat of the car and the child seat

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JUNG, H. J., Y. H. CHO, D. S. LEE, J. C. OH, and Y. D. KWON. "A STUDY OF OPTIMUM DESIGN AND ANALYSIS WITH D.O.E FOR AUTOMOTIVE SEAT FRAME." International Journal of Modern Physics: Conference Series 06 (January 2012): 594–600. http://dx.doi.org/10.1142/s2010194512003832.

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In modern times, development trend of automobiles is the tendency to prefer the high fuel efficiency of automobile. Also, the structure of seat that takes 4% of automobile's weight is the target to be secured the stability enough and attain the lightweight, To meet this, the characteristics of load to be applied to seat structure must be analyzed from the initial time, and it must be considered and designed material, thickness, distance to be assembled with recliner and condition of section through the calculation of numerical value. This study performed to reduce stress and moments to be occu

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Zhao, Li Hui, and Ying Long Tao. "Structure Optimization for Backrest Frame of CRH Seat Based on DOE Analysis." Advanced Materials Research 430-432 (January 2012): 2071–74. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.2071.

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The stiffness of the seat from CRH high speed train was studied. First, FEM analysis was performed on the entire seat and the backrest frame. Results showed that the backrest frame accounts for most of the seat’s deformation. Then a three factors and three levels orthogonal experiment was designed to find which component affects the stiffness of backrest. From the results of nine experiments, conclusion that side beams have the high sensitivity on seat stiffness. Finally, size optimization was carried on to find best cross section of the side beam. The FEM analysis of new design showed that th

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Yao, You Liang, Cui Peng Zuo, Cui Lan Li, Li Wang, and Hao Li. "Modal Analysis of Seat Frame of Bulldozer's Cab Based on Finite Element Method." Advanced Materials Research 479-481 (February 2012): 1375–79. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1375.

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As the seat frame is an essential structure of bulldozer's cab, dynamic characteristics of the structure are particularly important. The finite element model of the seat frame was established by CATIA software, and then modal analysis was carried out in absolute freeness. After investigating inherent frequency and vibration mode of several typical modes seriously, dynamic characteristics of the frame were clear. Weak links of the structure were obtained on the basis of analysis result, and structure improvement was conducted. Finally, the comparison and analysis was carried out between the unm

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Singh, Amandeep, Siby Samuel, Harwinder Singh, Yash Kumar, and Chander Prakash. "Evaluation and Analysis of Whole-Body Vibration Exposure during Soil Tillage Operation." Safety 7, no. 3 (2021): 61. http://dx.doi.org/10.3390/safety7030061.

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This study investigated whole-body vibration (WBV) response in real field harrowing operations at different tractor ride conditions i.e., average speed, front harrow pin angle (FHPA), and rear harrow pin distance (RHPD). Taguchi’s L27 orthogonal array was used to formulate a systematic design of experiments. WBV exposure was measured along the three translational axes to compute overall daily vibration magnitude i.e., A(8). Tractor’s seat isolation capacity was assessed in terms of Seat Effective Amplitude Transmissibility i.e., SEAT%. Raw acceleration data was analysed to obtain dominant freq

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Treaster, Delia. "Measurement of Pressure Distributions as a Function of Seating Parameters." Proceedings of the Human Factors Society Annual Meeting 30, no. 6 (1986): 538–41. http://dx.doi.org/10.1177/154193128603000607.

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This study examines the effect of seat pan and backrest angles on the distribution of seating pressures. Experimental equipment and data analysis which allow continuous measurement, quantification and analysis of seating pressures on the seat pan and backrest are described. It was found that the seat and backrest angles affected the distribution of pressure on both the seat pan and backrest. The results indicate that increasing the backrest angle was more effective in relieving areas of high pressure than increasing the seat pan angle.

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Carneiro, J. O., F. J. Q. de Melo, J. T. Pereira, and V. Teixeira. "Pseudo-Dynamic Method for Structural Analysis of Automobile Seats." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 219, no. 4 (2005): 337–44. http://dx.doi.org/10.1243/146441905x52964.

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This work describes the application of a pseudo-dynamic (PsD) method to the dynamic analysis of passenger seats for the automotive industry. The project of such components involves a structural test considering the action of dynamic forces arising from a crash scenario. The laboratory certification of these automotive components consists essentially on the inspection of the propagation and extension of plastic deformations zones in metallic members of the seat structure as consequence of the mutual action between the seat and the passenger fastened to the seat via seat belt anchorages. This wo

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Tang, Zhi, Zhihui Liu, Yingte Tang, Jinzhen Dou, Chang Xu, and Lina Wang. "Model construction and analysis of ride comfort for high-speed railway seat cushions." Work 68, s1 (2021): S223—S229. http://dx.doi.org/10.3233/wor-208019.

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BACKGROUND: More and more people choose to travel by high-speed railway. The seats in these vehicles are an important contact point and comfort of the seat cushions needs attention. OBJECTIVE: The aim of this study is to choose among three seat cushions, the one that creates most comfort for a high-speed train. METHODS: Twelve healthy volunteers were selected to participate in the experiment. Three different surface shape models of high-speed railway seat cushions were used. The Seat Pressure Distribution Index (SPD%) was calculated and analysed. A 7-point Likert scale questionnaire was applie

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Zuo, Xidong, Qingzhang Chen, and Youshi Li. "Double roller negative stiffness mechanism seat suspension optimization design and vibration analysis." Journal of Physics: Conference Series 2730, no. 1 (2024): 012057. http://dx.doi.org/10.1088/1742-6596/2730/1/012057.

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Abstract To further improve the vibration isolation performance of automobile seat suspension and the riding comfort of automobiles, this paper uses the double roller negative stiffness mechanism (NSM) to calculate the seat suspension with quasi-zero stiffness (QZS) characteristics. The influence of the structural parameters on the QZS characteristics is simulated and analyzed, and the structural parameters are optimized by the orthogonal design method. The effectiveness of the optimization was verified by analyzing the dynamic response of the seat suspension system. The results show that the

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Yan, Bijuan, and Jie Zhang. "Analysis of vehicle ride comfort applying a 2SPS+SR parallel seat mechanism." Noise & Vibration Worldwide 52, no. 4-5 (2021): 93–101. http://dx.doi.org/10.1177/0957456521999835.

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The violent vibration may cause discomfort to the driver and operation instability in different directions including fore-aft, lateral, and vertical when construction vehicles are driven or operated on off-roads. To improve ride comfort, a novel kind of 2SPS+SR parallel seat mechanism is proposed in this article. First, to verify the motion state of one translation and two rotations, the model of this new seat mechanism was built and analyzed using UG software. Furthermore, the acceleration and power spectrum density between the conventional seat and the 2SPS+SR parallel seat were compared in

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Purohit, Pritee, Raviraj Gurav, and Sandeep Nalavade. "Improving crash-worthiness and occupant safety of bus seat structures in frontal crashes as per AIS023 using Finite Element Analysis." Journal of Physics: Conference Series 2601, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1742-6596/2601/1/012039.

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Abstract Buses are a popular mode of traveling worldwide. In the incidence of a frontal crash (also called a “Head-on collision”) the passengers seating in the second and further rows gets injured due to sudden impact over the front seats. Any accident can cause injury, but statistics show that head-on crashes are even more likely to result in serious harm or fatality to the driver or passengers in either vehicle. During the frontal crash of a bus, if a passenger collides with the next seat and the seat structure performs rigidly it leads to severe injuries. At the same time the front seat sho

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