Analysis and Design of Bus Chair for Economic Class Using Ergonomic Function Deployment (EFD) Method

Wibowo, Robertoes Koekoeh Koentjoro; Soekarno, Siswoyo; Syuhri, Ahmad; Vayendra, Dwi Devi

doi:10.31695/ijasre.2018.32921

Cited by 5 publications

(5 citation statements)

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“…The previous methods have different backgrounds and approaches but are unanimous in framing comfort as a combination of physical and psychological factors. Whilst the physical state can be influenced by external stimuli such as noise, temperature, or vibration, the psychological state is affected by the previous user experience and expectations [29][30][31]. Therefore, to be able to evaluate both, physical and psychological impact on the users' comfort, objective and subjective methods should be considered.…”

Section: Comfort and Discomfort Definitionmentioning

confidence: 99%

“…Derived from wheel-track interaction and rail motion, vibration is the critical factor affecting users' comfort and health, limiting their performance. Therefore, evaluating the vibration transmission in a rail environment is fundamental to quantify passengers' comfort levels and assess the harmful consequences of vibration [31][32][33][34][35].…”

Section: Ride Comfort Evaluationmentioning

confidence: 99%

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Railways Passenger Comfort/Discomfort: Objective Evaluation

Silva,

Mendes,

Seabra

et al. 2024

Civil Engineering

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Railways are one of the most used public transportation modes. Due to the low environmental impact, governments are promoting their use as a solution for mass transportation for middle-distance. Critical parameters to satisfy passengers and attract new ones are related to comfort, safety, and user conditions. Comfort is classified by dynamic and static methods, ideally combining both. The former is based on the comfort evaluation in the presence of vibration, whilst the latter is applied to standstill situations. Vibration, derived from the train motion, will be presented throughout the trip; thus, it is a major concern. For the same reason, assessing vibration levels associated with comfort gives important information about the train’s condition and its major maintenance or repair needs. Vibration transmissibility allows the study of the vibration frequency that is being transmitted to the user. In this chapter, the complete seat structure and the passenger’s comfort are evaluated combined with the interface pressure. This chapter presents the commonly used methodologies and results from the tests conducted on railway environment whilst running passenger service. These tests report the seat comfort evaluation and a new methodology to identify train and rail maintenance needs based on comfort analysis.

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Section: Comfort and Discomfort Definitionmentioning

confidence: 99%

Section: Ride Comfort Evaluationmentioning

confidence: 99%

Railways Passenger Comfort/Discomfort: Objective Evaluation

Silva,

Mendes,

Seabra

et al. 2024

Civil Engineering

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“…In design, the product is needed to human body dimension in related with product specification. In anthropometry concept, percentile used as the base of measure for product [17]. The specification for P5 is used because the design of product specification, a critical for people who have small body posture.…”

Section: Anthropometrymentioning

confidence: 99%

Product Development of Mini Chamber with Ergonomic Function Deployment (EFD) Method

Adrianto¹,

Wahyudi²,

Tiaramadhanti³

et al. 2021

TURCOMAT

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Corona Virus Disease-19 (Covid-19) pandemic is still ongoing until now. The spread of this virus is very dangerous because it can spread through droplets or the particles that come out from the nose and mouth. Based on these sentences, the spread of the virus has become risky, one of the activities is shopping online. Virus transmission can occur through delivery and receive stuff activities. The habit that occurs in public, often the stuff arrived at home indirectly sterilized. The purpose of the research is to develop a product that can sterilize the stuff with disinfectant automatically. This research for product development with Ergonomic Function Deployment (EFD) Method. In this method, the product concept is designed based on customer needs (voice of customer). Data of customer needs is obtained from the result of 100 respondents with an age range of 20-40 years who frequently online shopping. The product designed refers to the method used with the ergonomic principle after data is processed. The recommendation of product development from this research is a mini chamber. This product is a development of the chamber but its function is for spraying stuff from the outside of house. The procedure of this product is works automatically so the application of this product for customer can be easier.

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“…Nowadays, those numbers are even higher than the pre-pandemic ones [4,5]. To maintain this continuous rising trend, one must improve the trains' attractivity, which is usually achieved based on three main parameters: safety, comfort, and user conditions [6][7][8][9]. Resulting from the rail motion and wheel-track interaction, seat vibration affects users' comfort and health, limiting the attractiveness performance.…”

Section: Introductionmentioning

confidence: 99%

“…As passengers spend most of their time seated, vibration will be transmitted to the user through the interfaces between the human body and the seat structure and vehicle [8]. Thus, evaluating vibration transmission in a rail environment is crucial to assess the vibration frequencies and amplitudes transmitted to the user and evaluate passengers' comfort [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Modal Identification of Train Passenger Seats Based on Dynamic Tests and Output-Only Techniques

et al. 2023

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Railways are one of the most efficient and widely used mass transportation systems for mid-range distances, also being pointed out as the best strategy to reach European Union decarbonisation goals. However, to increase railways attractiveness, it is necessary to improve the quality of the ride, namely its comfort, by decreasing the vibration at the passenger level. This article describes the experimental vibration modal identification of train seats based on a dedicated set of dynamic tests performed on Alfa Pendular and Intercity trains. This work uses two output-only modal identification techniques: the transmissibility functions and the Enhanced Frequency Domain Decomposition (EFDD) method. The last method allows us to clearly distinguish the seat structural movements, particularly the ones related to torsion and bending of the seat frame, from the local vertical foam vibrations. The natural frequencies and mode shapes are validated by matching the results derived from the transmissibility functions and EFDD method. The identified modal parameters are particularly relevant to characterise the vibration transmissibility provided by the foams (local transmissibility) and the vibration transmissibility derived from the metallic seat frame (global transmissibility).

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Analysis and Design of Bus Chair for Economic Class Using Ergonomic Function Deployment (EFD) Method

Cited by 5 publications

References 0 publications

Railways Passenger Comfort/Discomfort: Objective Evaluation

Railways Passenger Comfort/Discomfort: Objective Evaluation

Product Development of Mini Chamber with Ergonomic Function Deployment (EFD) Method

Modal Identification of Train Passenger Seats Based on Dynamic Tests and Output-Only Techniques

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