About the Journal

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Aim & Scope

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The Indian Journal of STEAM, provides a broad-based platform for Innovations & Researches in various streams. The Journal is the initiative of the students and research scholars of D. Y. Patil University Ambi Pune to have the broad based platform for publishing research work or case studies or review article of different disciplines and it is a journey towards consilience in a way of interdisciplinary approach.

The focus of Journal aims:

I) To publish the most exciting research areas and sub areas in the field of STEAM

II) To provide easy accessibility for publishing with rapid reviewing to disseminate the articles for teaching, research, and reference purposes. In today's world of quick information availability globally at the click of the button. The Indian Journal of STEAM gives an open access worldwide to reach readers on larger scale than that of any other subscription-based journal. The published papers in Indian Journal of STEAM increases the visibility and impact factor.

Objective

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• To create awareness of knowledge, its quality and effectiveness of various innovative ideas.
• To stimulate further research on the effects of innovations for exploring the scope of further research.
• To contribute to an overview of areas that lacks interventions.

Guidelines for Authors

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1. Type of Papers published: Paper should be of sufficient novelty and not published or under consideration of publication anywhere else. It may be of research article or case studies or review type in nature. The Author Guidelines and paper template is provided in journal webpage.
2. Plagiarism: Manuscript is checked for plagiarism. Similarity index should not be more than 10%.
3. No. of issues: It is published quarterly, there are 4 issues published per year.
4. Publication charges: Open access publication charges are 150 Rupees and 500 Rupees for UG and PG/Ph.D scholars respectively. The payment of fees is accepted only if the paper is accepted for publication after single blind review process. If the authors demands print version of the issue, it is chargeable extra as per the prevailing expenses incurred.
5. Call for Papers: The manuscripts are accepted throughout the year. Manuscripts are called by editorial board members through email and Journal web page.
6. After submitting manuscript to the Journal : The chief Editor will assign Editorial board members to the manuscript received based on its scope. All the manuscripts submitted undergoes single blind review process. If any conflict of interest, corresponding author should clearly mention while submission. The manuscript goes through initial screening by the editor about its novelty. If it lies within the scope of the Journal, suitable reviewers are assigned. The manuscript is forwarded to the reviewers (mostly two) with instructions of the review process. Within Fifteen days, reviewer submits his/her comments to the editor. Based on the reviewer comments, editor decides about publishing it in the current issue or next issue. Before the paper being published, authors should submit copyright duly signed.
7. The journal is indexed in most of the indexing sources. The list will be provided very soon.

• Manuscript should be outcome of the Original research work, Review of previous work or case studies in the areas meeting the scope of the journal. It should not have been published elsewhere or under consideration for publication.
• Length of article should be between 6-8 pages or word count between 3000 to 4500.
• The article should be submitted using the journal template following double column in word format.
• The journal will follow single blind review process with minimum two peer review.
• The paper will be published after acceptance within two week.
• The article processing Charges (APC) as per the ordinance of the journal .
Following guideline are to be followed while submitting article to journal:
• Title: Concise and informative. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae where ever possible.
• Author names and affiliations: Please clearly quote the given name(s) and family name(s) of each author and ensure that they are precisely spelled. You can add your name between parentheses in your own script behind the English transliteration. Present the authors' affiliation.
• Corresponding author: Clearly identify who will handle correspondence at all stages while refereeing and publication, along with post-publication services. This responsibility includes answering the queries about Methodology and Research Materials. Ensure that the e-mail address is given and that contact details are kept up to date by the corresponding author.
• Present/permanent address: If an author has relocated after the work described in the article was done, or was visiting at the time, a 'Present address' (or 'Permanent address') may be indicated as same.
• Abstract: A concise and factual abstract is required. The abstract should state briefly the purpose of the research, the principal results and major conclusions, and should not exceed 200 words. An abstract is often presented separately from the article, so it must be able to stand alone. For this reason, References should be avoided, but if essential, then cite the author(s) and year(s).
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• Acknowledgements: Collate acknowledgements in a separate section at the end of the article before the references and do not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help during the research (e.g., providing language help, writing assistance or proof reading the article, etc.).
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Examples:
• Reference to a journal publication: [1] Van der Geer J, Hanraads JAJ, Lupton RA. The art of writing a scientific article. J Sci Commun 2010;163:51–9. https://doi.org/10.1016/j.Sc.2010.00372.
• Reference to a journal publication with an article number: [2] Van der Geer J, Hanraads JAJ, Lupton RA. The art of writing a scientific article. Heliyon. 2018;19:e00205. https://doi.org/10.1016/j.heliyon.2018.e00205
• Reference to a book: [3] Strunk Jr W, White EB. The elements of style. 4th ed. New York: Longman; 2000.
• Reference to a chapter in an edited book: [4] Mettam GR, Adams LB. How to prepare an electronic version of your article. In: Jones BS, Smith RZ, editors. Introduction to the electronic age, New York: E-Publishing Inc; 2009, p. 281–304.
• Reference to a website: [5] Cancer Research UK. Cancer statistics reports for the UK, http://www.cancerresearchuk.org/aboutcancer/statistics/cancerstatsreport/; 2003 [accessed 13 March 2003].

Paper Template Download

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Paper Title (24pt, Times New Roman, upper case, line spacing: Before: 8pt, after: 16pt)

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(*Corresponding Author- email id)

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Abstract :  This study has been undertaken to investigate theAbstract should be written up to 200 words and it should focus on the main theme of the work along with important findings. It becomes most important to study the vehicle vibrations for human body comfort. The model fabrication is done on the basis of comparing real human body parameters with human physical models used in the ISO 10068:2012 standard. This article revealed effect of vibration transferring to the specific parts of human body due to vibration transferring from Seat to Height (STH) and from Hands on steering. The focus of the present study was to determine the vibration output from fabricated model. T he vibrations as input to the model are from automotive vehicles. The input verses output vibration characteristics will be useful to study effects of vibration on human health. The human body is considered as a simple spring, mass, damper system for analysis. This multi body model representative of the automotive postures found in the literature were investigated, one with and the other without a backrest support. The model was modified to suitably represent the different automotive postures with and without backrest supports, to the same postural conditions on the basis of the analytical study. The prepared model has been further compared with similar model provided in the literature on automotive sitting environments.

Key Words : Vehicle vibrations, energy flow, human body comfort, hand-arm vibrations, hands on steering

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    I. Introduction

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All manuscripts must be in English. These guidelines include complete descriptions of the fonts, spacing, and related information for producing your proceedings manuscripts. Please follow them.

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Mechanical vibrations generated by vibrating systems of power tools or transport vehicles can have a negative impact on the human body. Long-term exposure to vibrations can cause many disorders in the operator’s body, leading to

permanent damage. In a seated position, humans are most sensitive to full body vibrations under less frequency excitation; hence, biodynamic responses of a seated human body when exposed to vertical vibrations have receive much attention through the years. Moreover, it is important to understand the cause-effect relationships in between the vibrations transmission through the body, its health, comfort and performance. These responses have been widely assessed in terms of seat-to-head (STH) transmissibility, driving point mechanical (DPM) impedance, and apparent (AP) mass [1]. The first function refers to the motion transmission thorough the body; whereas the other two refers to the force and motion at the point of vibration input. The human body is dynamic system whose mechanical properties changes from moment to moment and from person to person. From the results of a large amount of experimental data, various mathematical models have been developed to describe human motion. According to different techniques, these models can be grouped as lumped-parameter (LP), finite element (FE), and multibody (MB) models [2].and performance. These responses have been widely assessed in terms of seat-to-head (STH) transmissibility, driving point mechanical (DPM) impedance, and apparent (AP) mass [1]. The first function refers to the motion transmission thorough the body; whereas the other two refers to the force and motion at the point of vibration input. The human body is dynamic system whose mechanical properties changes from moment to moment and from person to person. From the results of a large amount of experimental data, various mathematical models have been developed to describe human motion. According to different techniques, these models can be grouped as lumped-parameter (LP), finite element (FE), and multibody (MB) models [2].

   II. MODELLING OF HUMAN BODY

Figure 1 Proposed system layout

MB model of consist of several rigid bodies interconnected by bushing elements (rotational and translational spring-damper units), pin (2-D) and/or ball-and-socket (3D) joints. The 3-D model is designed and fabricated by comparing specifications. Then used in the study of biodynamic responses of the human body. For the responses of a seated body exposed to vertical vibrations, mathematical models was at least 2-D in the sagittal plane. Especially in an automotive seating environment, bouncing and pitching motions are the important factors in vehicle riding assessment. As a result (shown in fig number 1), a few 2-D models reaches minimal satisfaction of the mentioned body.

  III. MEASUREMENTS AND MATHEMATICAL MODEL

As mentioned earlier, from a few years several mathematical models for the study of biodynamic responses of a sitting body are printed on the idea of individual take a look at knowledge. As part of this study, the basic assumptions and experimental data for the analysis of seated humans exposed to vertical vibrations will be studied first. Moreover, MB model, having fourteen degrees of freedom (DOFs) will be illustrated and summarized in this section of study [4].

  III-I Measurements without Backrest Support

A variety of test data used to categorized the biodynamic response functions has been established by using different variety of testing conditions, most of which can be grouped in the data sets for a seated body without back rest support. Such grouping has resulted in considerable discrepancies among the data. To avoid these deficiencies, a primary conclusion was reached that any attempt to define generalized values might not be correct unless it could be defined specifically for a particular application or within a limited but well-defined range of situations. From the literature, data sets satisfying the following requirements were selected for the study of biodynamic characteristics of seated human subjects [5].

Body masses were limited to the range within 49–94 kg;

The feet were supported and vibrated;

Data sets tested under vibration excitations were exposed to the vertical direction;

Vibration excitation amplitudes were below 5 m/s2, the nature of excitation being specified as either sinusoidal or random;

The excitation frequency range was limited to 0.5–20 Hz.

  III-II Measurements with Backrest Inclined 21°

In this study only the STH transmissibility data were selected to validate the targeted MB models to avoid comparisons of the response function from simulations, and data is compared with data of Experimental results: seated human body exposed to vertical vibrations without backrest support from Cho-Chung LIANG1 and Chi-Feng CHIANG1.

  III-III Measurements with Backrest Inclined 12°

Because of associate in nursing, incomplete information of the mechanical properties of the body, the effect of hand positions and body mass on AP mass is difficult to determine. This research studies only on the effect of the backrest angle on the biodynamic response functions. The AP mass values measured at three different back-support positions, representing a flat pan with the back unsupported, and with the back supported by a vertical backrest or an inclined backrest as mentioned in Cho-Chung LIANG1 and Chi-Feng CHIANG1.

Figure 2Cho Chung Liang and Chi Feng Chiang Model

As previously mentioned, the experimental studies on the biodynamic of a seated human body exposed to vertical vibrations have been widely assessed in terms of STH transmissibility, DPM impedance, and AP mass. Moreover, the support in automotive seating environments contributes to decrease muscle tensions and maintain sitting posture throughout driving.

Derivations of system Derivations of system Derivations of system

Ceq=(C1*Cs1)/(C1+Cs1) ; Keq=((C12ks1+CS12k1)+K1KS1(C1+CS1))/((K1+KS1)+S(C1+CS1)) ;
[M]*{q}+[C]*{q}+[K]*{q}={fE}

Where [M], [C], and [K] are the 14 × 14 mass, damping and stiffness matrices, respectively; {q} is the vector of generalized coordinates; {fE} is the force vector due to external excitation. By considering model as a simple spring mass system with certain assumptions derivations for following measurements were derived.

(a) Measurements without backrest support

(b) Measurements with backrest inclined 21°

(c) Measurements with backrest inclined 12°

Table 1Specifications of Engine

Manufacture	Rocket engg. Corpn. Ltd.
SFC	251 g/kWhr.
Rated power	4.8 kW @ 1500 RPM
Standard CR	17.5:1/td>
Bore	87.5 mm
Stroke	110 mm
Injection Timing	230 before TDC
Exhaust valve open	35.5 bBDC
Inlet valve close	35.5 aBDC
Exhaust valve close	4.5 aTDC

  IV. 4. CONCLUSION

A study of MB models of a fixed human body on a platform which is exposed to vertical vibrations has been implemented. The model proposed in this study has been analyzed in terms of STH transmissibility.

From the analysis following comments can be made:

For responses of a seated body exposed to vertical vibrations, the models must be at least 2-D in the sagittal plane. Therefore, the MB model in this study was observed when sitting both with and without backrest supports, irrespective of hand positions, while the feet were supported and allowed to vibrate. In the biodynamic analyses both models were simplified to linear systems to reduce the analytical and simulation complexities.

The proposed model is fit in different automotive sitting environments very well. It is recommended that the proposed model be used in evaluations of the biodynamic responses of a seated human body exposed to vertical vibrations in various automotive postures

References

[1] AMarian Witalis dobry and Tomasz Hermann 2014, A Comparison of Human Physical Models Used in the ISO 10068:2012 Standard Based on Power Distribution PART 2, University of Technology, Institute of Applied Mechanics. Vibrations in Physical Systems, Volume 26.

[2] Ghuman Kuljit Singh 2007, Effect of Whole-Body Vibration on Vehicle Operators: A Review, Research Scholar, Production Engineering Department, PEC University of Technology, Chandigarh-160012, India.

[3] Cho-Chung LIANG1, Chi-Feng CHIANG 2007, Modeling of a Seated Human Body Exposed to Vertical Vibrations in Various Automotive Postures, Department of Mechanical and Automation Engineering, Dayeh University, 112 Shanjiau Rd., Datsuen, Changhua, Taiwan 515, R.O.C

[4] Katu U.S., Desavale R.G., Kanai R.A. Effect of Vehicle Vibration on Human Body – RIT Experience, Department of Mechanical Engg. Rajarambapu Institute of Technology Sakharale, pp. 415−414.

[5] CLech J. Sitnik, Monika Magdziak-Tokáowicz, Radosáaw Wróbel, Piotr Kardasz 2015, Vehicle Vibration In Human Health, Wroclaw University of Technology Institute of Machine Design and Operation àukasiewicza Street 7/9 Wroclaw, Poland, pp, 50−371.

Current Issue

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Volume 1, Issue 2, August 2021

Archives

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Volume 1, Issue 1, September 2020