scholarly journals Design of a Mechanical Part of an Automated Platform for Oblique Manipulation

2020 ◽  
Vol 10 (23) ◽  
pp. 8467
Author(s):  
Miroslav Blatnický ◽  
Ján Dižo ◽  
Milan Sága ◽  
Juraj Gerlici ◽  
Erik Kuba
Keyword(s):  
Engineering Design ◽  
Parametric Model ◽  
Numerical Calculations ◽  
Technical Development ◽  
Optimal Parameters ◽  
Technical Documentation ◽  
Mechanical Part ◽  
Working Principle ◽  
Automated Platform ◽  
Moment Load

Handling machines are increasingly being used in all sectors of the industry. Knowledge of the theory of transport and handling machines are basic prerequisites for their further technical development. Development in the field of manipulators is reflected not only in their high technical level, but also in increasing safety and economy. The article presents results of research focused on the complete engineering design of a manipulator, which will serve as a mean of the oblique transport of pelletised goods. The manipulator takes the form of a platform moving between two destinations by means of an electromotor. The engineering design of the platform including the track and a working principle is described. The design includes analytical and numerical calculations of main loaded components of the platform. Extensive functional and dimensional calculations serve as the base for preparation of the technical documentation. An important step will be the creation of a parametric model of the force and moment load acting on a platform drivetrain. Based on this, optimal parameters of an electromotor and its dimensional calculation are performed.

scholarly journals The method for determining working resistance of advance support bracket in deep fully mechanized roadway based on Flac3D

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401878362 ◽  
Author(s):  
Guanghui Xue ◽  
Jijie Cheng ◽  
Jian Guan ◽  
Jingxuan Chai ◽  
Guofeng Zhang ◽  
...  
Keyword(s):  
Coupling Model ◽  
Surrounding Rock ◽  
Numerical Calculations ◽  
Stress And Strain ◽  
Determination Method ◽  
Mechanical Coupling ◽  
Mining Depth ◽  
Geological Conditions ◽  
Working Principle ◽  
Working Resistance

Fully mechanized roadway is an area of high accident incidence, and the problem is more prominent with the increase of mining depth of coal resources. The advance support scheme put forward for fully mechanized mining roadway with self-moving support and anchor combined unit, and the configuration and working principle of support robot was explicated. A determination method on the working resistance of advance support bracket was proposed based on mechanical coupling model of surrounding rock-advance support brackets. Taking the geological conditions of the Qishan mine as an example, the process of analyzing and determining the working resistance of the advance support bracket was described using this method. An advance support bracket was designed using SolidWorks, and the working load was obtained based on numerical calculations. Then the stress and strain were analyzed using ANSYS. The results showed that the designed advance support bracket can withstand the corresponding top plate pressure. It provides a new method and thought for study and development of advance supporting equipment in deep fully mechanized roadway.

Design and Research of Constant Spring Hangers

2012 ◽  
Vol 482-484 ◽  
pp. 457-460 ◽  
Author(s):  
Li Hua Chen ◽  
Hao Zou ◽  
Chang Qing Sun
Keyword(s):  
Differential Equation ◽  
Engineering Design ◽  
Coordinate Transformation ◽  
Mechanical Model ◽  
Constant Force ◽  
Working Principle ◽  
Curve Equation

Compared with link constant hangers, main-compensating constant hangers are structural symmetric, having high theoretical constant force. Swing cams are important component of the device, therefore the design of cam curve is the key of constant hangers. Based on the analysis of working principle of constant hangers, a mechanical model of constant hanger is established, and the differential equation of cam curve is derived by means of coordinate transformation .Meanwhile, spring parameters are determined. Curve equation is resolved and the cam curves are plotted. Then, the influence of spring parameters on cam curves is discussed. Finally, force values acting on the cam and the central rod are calculated according to cam curve. The simulations in this paper can be used to instruct the actual engineering design.

Comparison and Extension of Novelty Metrics for Problem-Solving Tasks

2016 ◽  
Author(s):  
Tyler A. Johnson ◽  
Avery Cheeley ◽  
Benjamin W. Caldwell ◽  
Matthew G. Green
Keyword(s):  
Problem Solving ◽  
Engineering Design ◽  
Physical Principle ◽  
Levels Of Abstraction ◽  
Data Set ◽  
Working Principle ◽  
Abstract Ideas ◽  
Using Data

Shah’s metrics for measuring ideation effectiveness have been used extensively by the engineering design community to quantify the value of designed concepts. Shah measures novelty as the infrequency of an idea relative to a set of ideas. Vargas-Hernandez extended this novelty metric using partial genealogy trees to consider the frequency of ideas that share the same working principle. These genealogy trees capture differences between individual ideas organized by the following levels of abstraction: physical principle, working principle, and embodiment. Shah’s and Vargas-Hernandez’s metrics both require that all ideas be described at the lowest level (embodiment). This approach excludes ideas that are described at higher levels of abstraction. This paper proposes a new novelty metric that extends Vargas Hernandez’s metrics by including the higher levels of the genealogy trees, allowing abstract ideas to be properly evaluated. This paper compares the newly proposed novelty metric to Shah’s and Vargas Hernandez’s metrics using data from a previous study. The study required participants to perform problem-solving tasks in which they submitted a textual list of ideas for how to solve general day-to-day problems. The proposed novelty metric addresses limitations of the previous metrics when applied to the abstract ideas in the data set and meets established metric requirements. The proposed metric also broadens Shah’s metric in a similar manner as Vargas Hernandez but extends it to capture the entire genealogy tree rather than a subset of the tree.

Collaborative Multidisciplinary Engineering Design Experiences in IoT (Internet of Things) for Teachers Through Summer Research Site Program

2018 ◽  
Author(s):  
Alireza Karbalaei ◽  
Damla Turgut ◽  
Melissa Dagley ◽  
Eleazar Vasquez ◽  
Hyoung J. Cho
Keyword(s):  
Internet Of Things ◽  
Engineering Design ◽  
Technical Development ◽  
The Internet ◽  
Research Experiences ◽  
Train The Trainer ◽  
Teachers And Students ◽  
K 12 ◽  
Research Experiences For Teachers ◽  
The University

The objective of the NSF RET (Research Experiences for Teachers) site program hosted by the University of Central Florida is to provide K-12 teachers with a hands-on engineering design experience covering all aspects of the Internet of Things, from the manufacturing of a sensor, to the hardware and software that allows it to connect to the Internet. This program gives teachers learning opportunities to explore the practical use of science for engineering applications, and provide a context in which students in their classroom can test their own scientific knowledge as they recognize the interplay among science, engineering and technology. The uniqueness of this site program lies in the engagement of teachers in various facets of scientific, engineering, and educational methods based on Train-the-Trainer model with rotation in multiple research labs. In order to support the STEM educational services for teachers and students in middle and high schools, our site program aims at creating competent teacher trainers who ensure quality pre-service and in-service teacher education, by providing multidisciplinary experiences that are relevant to the current technical development. Teachers in the adjacent public school districts are primary participants in this site program. Significant efforts have been made to recruit teachers serving underrepresented student populations, and female and minority teachers who can reach out to them. In our RET site program, the participants rotated to four different laboratories with a 1.5–3 week residency in each, where they learned about the practice of engineering in various disciplines at the research laboratories on the university campus under the guidance of faculty and graduate mentors. The teachers presented their learning outcomes in the final week and were invited back to share their educational implementation experiences in their classes. This site program provided teachers with interdisciplinary engineering design experiences relevant to innovative technical development, and helped them develop teacher-driven teaching modules that can be deployed in the classroom.

Bonding of Rubber to Metals

1944 ◽  
Vol 17 (1) ◽  
pp. 200-212
Author(s):  
S. Buchan
Keyword(s):  
Sulfuric Acid ◽  
Engineering Design ◽  
Technical Development ◽  
Mechanical Vibrations ◽  
Rubber Industry ◽  
Design And Manufacturing ◽  
Bonding Properties ◽  
Bond Strengths ◽  
Soft Rubber

Abstract Rubber has been used for many years as a medium for minimizing and absorbing mechanical vibrations. Until comparatively recently, however, its employment for this purpose has been limited by the practical difficulties encountered in uniting it successfully with other more rigid materials, such as metals. At this stage, technical development in the rubber industry fell short of engineering design and manufacturing requirements. Earlier methods for uniting rubber to metal consisted either of attaching the rubber by mechanical means or by using a layer of ebonite between the soft rubber and the metal. These methods, however, were open to criticism, either on mechanical or chemical grounds, and the bond strengths were obtained at the expense of some of the flexibility of the units. Later, derivatives were produced by the action of sulfuric acid on rubber which gave excellent bonding properties, although they were thermoplastic and tended to weaken at temperatures over 60° C. Recently, cements based on rubber hydrochlorides have been put on the market which are superior in all respects to previous types. These are the “Ty-plys”.

How to evaluate reading and interpretation of differently structured engineering design rationales

2008 ◽  
Vol 22 (4) ◽  
pp. 345-358 ◽  
Author(s):  
Marco Aurisicchio ◽  
Marina Gourtovaia ◽  
Rob Bracewell ◽  
Ken Wallace
Keyword(s):  
Engineering Design ◽  
Crucial Role ◽  
Aerospace Industry ◽  
Full Potential ◽  
Design Rationale ◽  
Technical Documentation ◽  
Documented Information ◽  
Graduate Trainees ◽  
Source Of Information ◽  
Empirical Methodology

AbstractDocumented engineering design rationale has the potential to become a key source of information about past designs. Ease of comprehension of design rationale might play a crucial role in ensuring that the full potential of documented information is realized and that the effort and time necessary to capture design rationale pay off. This research proposes an empirical methodology for evaluating how structuring design rationale and supplying it with visual nontextual cues influences reading and interpretation. The study compares reading and interpretation of technical documentation presented in different formats to engineering graduate trainees in the aerospace industry.

scholarly journals Search for new engineering design solutions of equipment for technological processes in winemaking

2021 ◽  
pp. 97-102
Author(s):  
Антон Владимирович Сильвестров ◽  
Виктор Афанасьевич Загоруйко ◽  
Наталья Борисовна Чаплыгина ◽  
Валентин Васильевич Рыжков ◽  
Александр Семёнович Макаров
Keyword(s):  
Engineering Design ◽  
Mass Production ◽  
Flow Line ◽  
Machine Building ◽  
Technological Equipment ◽  
Technical Documentation ◽  
Batch Type ◽  
Physical Effects ◽  
Design Projects ◽  
Pumping Unit

В статье поднимается проблема оснащения винодельческой отрасли современным высокоэффективным технологическим оборудованием с целью получения конкурентно-способной винодельческой продукции в связи с отсутствием отечественной машиностроительной базы. Приводится информация о зарубежных пневматических прессах периодического действия, повсеместно получивших распространение в винодельческом производстве, по сравнению со шнековыми стекателями и прессами непрерывного действия. С 2014 г. институт «Магарач» занимается разработкой и организацией восстановления серийного производства технологического оборудования для виноделия в России. По технической документации института «Магарач» изготовлены и серийно выпускаются: установка насосная для перекачивания мезги НПМ-32/32, установка насосная для перекачивания сусла и виноматериалов НПВ-10/32. Приводятся данные о научно-конструкторских разработках института «Магарач», в том числе с использованием в виноделии новых физических эффектов. Представлены результаты фактической стабильности образцов готовой винодельческой продукции, прошедших поточно-сорбционную обработку. Поднимается вопрос о необходимости развития отечественной машиностроительной базы для серийного производства современного винодельческого оборудования и оснащения ими винодельческих предприятий. The article raises problem of supplying the winemaking industry with modern highly efficient technological equipment in order to obtain competitive wine products due to the lack of national machine-building basis. Information on foreign pneumatic batch-type presses, which have become widespread in winemaking industry in comparison with worm strainers and continuous presses is provided. Since 2014, the Institute Magarach develops and organizes manufacturing recovery of technological equipment mass production for winemaking in Russia. According to the technical documentation of the Institute Magarach, the pomace pumping unit NPM-32/32, the must and base wine pumping unit NPV-10/32 were manufactured and are mass-producing now. The statistics on scientific and engineering design projects of the Institute Magarach, which include using of new physical effects in winemaking, are given. The results of actual positive stability of finished wine product samples after flow line sorption processing are presented. Question about the necessity to develop national machine-building basis for mass production of modern winemaking equipment and further instrumentation of winemaking enterprises is taken up.

scholarly journals Engineering design of technological parameters of separation of seed in the upward air flow of pneumatic sorting machines

2019 ◽  
Vol 126 ◽  
pp. 00030
Author(s):  
Victor Khamuev ◽  
Stanislav Gerasimenko ◽  
Mikhail Chaava
Keyword(s):  
Engineering Design ◽  
Air Flow ◽  
Optimal Parameters ◽  
Technological Parameters ◽  
Optimal Ratio ◽  
Vertical Up

It was showed the results of the determination the optimal parameters of the narrowing partitions installed in pneumatic channels with a vertical up air flow for cleaning seeds. The installation narrowing partitions in pneumatic channels makes it possible to increase the productivity and efficiency for cleaning seeds from difficult–to–remove impurities by no less than 20%, while the optimal ratio of the width of the partitions and the depth of the pneumatic canal sections varies from 0.3 to 0.5.

Modeling and Design of High Power Half-Bridge LLC Resonant Converter

2013 ◽  
Vol 711 ◽  
pp. 367-374
Author(s):  
Tian Gao ◽  
Qi Wang ◽  
Yan Yang ◽  
He He
Keyword(s):  
Steady State ◽  
High Power ◽  
Resonant Converter ◽  
Optimal Parameters ◽  
Llc Resonant Converter ◽  
Working Principle ◽  
Converter Design ◽  
State Models

ntroduction was made to the working principle of topology for the half-bridge LLC resonant converter. Steady-state models of the high power LLC resonant network were researched. The high power half-bridge LLC converter was modeled and analyzed with First Harmonic Approach so as to obtain the optimal parameters. The turn ration of the converter was selected. The resonant inductance, resonant capacitance and excitation inductance were designed. The feasibility of the high power LLC converter design has been verified through simulation.

Confidently Exploring the Solution Space: The Within-Subject Effects of Product Dissection on Design Variety and Creative Self-Efficacy

2018 ◽  
Author(s):  
Elizabeth M. Starkey ◽  
Mohammad Alsager Alzayed ◽  
Samuel T. Hunter ◽  
Scarlett R. Miller
Keyword(s):  
Engineering Design ◽  
Self Efficacy ◽  
Exploratory Study ◽  
Solution Space ◽  
Idea Generation ◽  
Physical Principle ◽  
Educational Tool ◽  
Working Principle ◽  
Creative Self ◽  
Design Ideas

Product dissection is a popular educational tool in engineering design due to its ability to help students understand the components and sub-components of a product, provide inspiration for new design ideas, and aid in product redesign. While prior research has investigated how dissecting a product before idea generation impacts the creative output of the ideation session, these studies failed to look at the types of ideas generated before dissection or how the type of product dissected impacts this. In addition, few studies have looked at how creative self-efficacy (CSE), or one’s belief in their creative ability, is influenced by these intervention activities. Thus, the current study was developed to respond to these research voids through an exploratory study with engineering design students. The results of the study suggest that virtual dissection helps students generate a larger variety of ideas after the activity at the physical principle, working principle, and embodiment levels, and that the complexity of the dissected product impacts variation at the embodiment level. In addition, CSE was not affected by the dissection activity. These results strongly support the utilization and implementation of dissection practices in engineering education as a means for aiding students in the expansion of the solution space in the early stages of design. They also bring attention to the need to explore the exact cause-effect relationship between innovation interventions and student confidence gains in their creative abilities.

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