scholarly journals Automated Chair Design for an Excavator Machine

2021 ◽  
Vol 6 (3) ◽  
pp. 48-52
Author(s):  
Roshan Gangadhar Chavan
Keyword(s):  
Real Life ◽  
Hydraulic Cylinder ◽  
Circuit Diagram ◽  
Horizontal Position ◽  
Electronic Components ◽  
Centre Of Gravity ◽  
Flow Pressure ◽  
Grinding Machine ◽  
Chair Design ◽  
Working Parameter

The design & development of automated chair is done in the project for the Excavator machine to ensure the comfort of the rider ensured for any angle of work being carried out by the excavator. The various components like the chair, support rod, rod end eye bearing, the control valves for the flow, pressure and direction, hose pipe and hydraulic cylinder are used to make the model of the automatic chair. The various electronic components like the proximity sensors, relays and SMPS are utilized to control and regulate the incline and decline of the chair as per the machine’s inclination so that horizontal position of the chair can be attained. The part designing and the assembly of all components are conducted in CATIA software. The circuit diagram for the proximity sensor is also made. The model is fabricated using the tools and equipment like the gas cutter, grinding machine, bending machine etc. The prepared model is tested for the incline and decline of the chair at 20˚ angle using the real-life working parameter of the machine. From the test the chair is observed to properly attain the horizontal position along with actuation of hydraulic cylinder by making sure that operator’s centre of gravity is maintained to ensure the comfort of rider.

Augmented Reality-Based Simulation of Some Basic Electrical Circuits Which Requires Oscilloscope for Analysis without Hardware

2019 ◽  
Vol 29 (06) ◽  
pp. 2050096
Author(s):  
Mehmet Özüaǧ ◽  
İsmail Cantürk ◽  
Lale Özyilmaz
Keyword(s):  
Augmented Reality ◽  
Physical Environment ◽  
Operational Amplifier ◽  
Mobile Application ◽  
Real Life ◽  
Touch Screen ◽  
Electronic Circuits ◽  
Electronic Components ◽  
Electrical Circuits ◽  
3D Simulations

This study aims to contribute to the electronics education through the use of Augmented Reality (AR) technology, and thus, limit the dependency on a physical environment and the equipment required for the experiments performed in electronics education. In this regard, an Augmented Reality-based mobile application (ARElectronicLab) has been designed to provide a technology–reality blended experience of electronic circuits in real physical life. This AR-based mobile application has been used to create simulations of diode clipper circuit and inverting operational amplifier circuit. The mobile application operates with a marker in real life and enables monitoring of 3D simulations of electronic components through a touch screen. Hence, the application offers a real-like experience and brings an innovative and enriching perspective into the electronics education.

scholarly journals Design and Development of a Low-Cost Wearable Glove to Track Forces Exerted by Workers in Car Assembly Lines

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 296 ◽  
Author(s):  
Leire Francés ◽  
Paz Morer ◽  
Maria Rodriguez ◽  
Aitor Cazón
Keyword(s):  
Low Cost ◽  
Real Life ◽  
Worker Safety ◽  
User Requirements ◽  
Assembly Lines ◽  
Electronic Components ◽  
Specific Design ◽  
Wearable Systems ◽  
Technical Factors

Wearables are gaining widespread use and technologies are making it possible to monitor human physical activity and behaviour as part of connected infrastructures. Many companies see wearables as an opportunity to enhance worker safety since they can monitor their workers’ activity in real life scenarios. One of the goals of this technology is to integrate existing electronic components, such as sensors or conductors, in order to create fully wearable systems. This integration is constrained not only by technical factors but also by user requirements and internal company standards. This paper considers such constraints and presents preliminary research for the design of a wearable glove as a new tool to track forces exerted by workers in car assembly lines. The objective of the glove is to measure forces and compare these to maximum forces already identified by the company. Thus, the main objectives are to: (1) integrate the components based on the requirements of the users and the context of application, and (2) provide a new tool that can be used “in situ” to track workers. This study was carried out in close collaboration with Volkswagen through a human-centred iterative design process. Thus, this paper presents the development of a wearable device glove based on a specific design methodology where both the human and technological aspects are considered.

Design of an Experimental Platform for Hydraulic Servo System

2011 ◽  
Vol 69 ◽  
pp. 51-54
Author(s):  
Jin Fang Zhu
Keyword(s):  
Hydraulic System ◽  
Servo System ◽  
Hydraulic Cylinder ◽  
Hydraulic Motor ◽  
Electronic Components ◽  
Servo Systems ◽  
Experimental Platform ◽  
Overall Design ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

VRLA (valve-regulated lead-acid) and Pump-control are the two kinds of power components for hydraulic servo system. With different command device, feedback measurement device and different corresponding electronic components, the hydraulic servo systems are different. To ensure maximum performance of the whole device, the overall design (including mechanical, electrical design) should be considered for hydraulic servo system. Machinery-electric-hydraulic should be in coordination with each other. The hydraulic system components are used to change the speed of hydraulic cylinder and alter direction of hydraulic cylinder and hydraulic motor. The solenoid valve for motor and hydraulic servo system and the control of pressure relay can implement by the electric section.

scholarly journals Design and development of low-range frequency modulated signal (F.M.) transmitter

BIBECHANA ◽  
2017 ◽  
Vol 15 ◽  
pp. 30-36
Author(s):  
Abhishek Shrivastava
Keyword(s):  
Short Range ◽  
Circuit Diagram ◽  
Electronic Components ◽  
Design And Development ◽  
Human Voice ◽  
Small Device ◽  
Favorable Conditions

Frequency Modulated (FM) signal transmitter is a small device that can transmit Frequency Modulated signal over short range. [1] This document consists of most simple and economical technique for building a FM transmitter using basic electronic components like resistor, capacitor, inductor etc. The FM transmitter receives human voice signals though microphone. It further amplifies it, modulate it over carrier and finally transmit it. Assuming favorable conditions, output of transmitter can be received by anyone who tunes it in frequency of our transmitter. Here, I have described Circuit diagram, its working, components required, uses of various components in our circuit, its practical applicability. The design is simulated using NI Multisim and is further implemented on bread-board. This design is capable of transmitting signal for distance of radius 20m, tuned at 97.1 MHz One could clearly hear sound produced at microphone of transmitter.BIBECHANA 15 (2018) 30-36

scholarly journals A Simplified Methodology to Evaluate the Design Specifications of Hydraulic Components

2018 ◽  
Vol 8 (9) ◽  
pp. 1612 ◽  
Author(s):  
Pedro Roquet ◽  
Pedro Gamez-Montero ◽  
Robert Castilla ◽  
Gustavo Raush ◽  
Esteban Codina
Keyword(s):  
Fatigue Life ◽  
Real Life ◽  
Hydraulic Cylinder ◽  
Fatigue Behaviour ◽  
Test Methods ◽  
Load Spectrum ◽  
Know How ◽  
Design Specifications ◽  
Service Conditions ◽  
Experimental Background

The fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when determining fatigue life. Compared with the structural variability, determining the variability in the load spectrums is more difficult because the service conditions are complicated and the measurements of the load parameters are slow and expensive. The problem that arises when studying the fatigue behaviour of such components is the transferability of short data samples from real-life load histories, which are application-dependant, to laboratory test methods. Derived from the experimental background and know-how of the authors, this paper proposes a methodology that allows the definition and establishment of the hydraulic cylinder design specificactions, while taking into account the probabilistic characterisation of the load spectrum variability. This methodology could be extrapolated to other hydraulic or mechanical components.

Shape grammars as design tools: an implementation of a multipurpose chair grammar

2018 ◽  
Vol 32 (2) ◽  
pp. 240-255
Author(s):  
Sara Garcia ◽  
António Menezes Leitão
Keyword(s):  
Three Dimensional ◽  
Real Life ◽  
Research Area ◽  
Design Tool ◽  
Shape Grammars ◽  
Combinatorial Explosion ◽  
Interface Elements ◽  
Practical Applications ◽  
Design Alternatives ◽  
Chair Design

AbstractThis paper presents a multipurpose chair grammar and its implementation in the design tool ChairDNA. This tool is oriented for the exploration of design alternatives in the early concept phase of the chair design process. This work addresses two shortcomings within the research area of shape grammars (SGs), namely, the lack of implementation of SGs applied to design domains, and the lack of practical applications in real-life design scenarios. To address these problems, a methodology is proposed for the implementation of a SG (more specifically, a set grammar) into a tool, comprising the translation of the grammar into user-interface elements oriented for design practitioners. By using the proposed tool, the user can add/delete chair components and edit shape parameters, while visualizing the effects on a three-dimensional digital model presented in a variety of CAD applications. Compared with other SG implementations, ChairDNA uses an approach that keeps under control the combinatorial explosion of rule applications, which simplifies the use of the tool by designers that do not have experience in SGs. The generative potential of the tool is demonstrated by generating chairs of different types, and its usability and utility in aiding the designer are evaluated by design students and design practitioners.

scholarly journals Research on Dynamic Characteristics and Compensation of Wire Rope Tension and Load Measurement Based on Hydraulic Connection Device

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Di Song ◽  
Gui-Yun Xu ◽  
Gao-Yang Lei ◽  
Xiao-Guang Zhang ◽  
Bao-Lai Tian
Keyword(s):  
Friction Force ◽  
Pressure Loss ◽  
Hydraulic Cylinder ◽  
Wire Rope ◽  
Friction Model ◽  
Inertia Force ◽  
Local Pressure ◽  
Hydraulic Connection ◽  
Load Monitoring ◽  
Flow Pressure

During the operation of hoist, the speed and acceleration of each wire rope are inconsistent and the inertia force is changed due to the wear of the friction pad on the drum, which makes an impact on the cylinder of the tension balance hydraulic connection device and aggravates the flow pressure loss. It results in the nonlinear friction force between the piston and cylinder and affects the accuracy of wire rope tension and load measured by an oil pressure sensor which is installed on the tension balance hydraulic connecting device. In this paper, the simulation model of the tension balanced hydraulic connecting device is established by AMESim software, and the hydraulic dynamic response under different pressures, flow rates, and speed of a single hydraulic cylinder and tension balanced hydraulic connecting device is analyzed. The Leuven friction model is used to compensate the pressure loss along the course and local pressure loss and calculate the friction force, where specific parameters are determined by experiments. The real-time compensation experiment of the tension balance hydraulic connecting device proves that the device effectively improves the accuracy of wire rope tension and load monitoring.

A peek in the micro-sized world: a review of design principles, engineering tools, and applications of engineered microbial community

2020 ◽  
Vol 48 (2) ◽  
pp. 399-409
Author(s):  
Baizhen Gao ◽  
Rushant Sabnis ◽  
Tommaso Costantini ◽  
Robert Jinkerson ◽  
Qing Sun
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Environmental Remediation ◽  
Real Life ◽  
Design Principles ◽  
Microbial Interactions ◽  
Potential Applications ◽  
New Gene ◽  
Global Biogeochemical Cycles ◽  
Synthetic Microbial Communities

Microbial communities drive diverse processes that impact nearly everything on this planet, from global biogeochemical cycles to human health. Harnessing the power of these microorganisms could provide solutions to many of the challenges that face society. However, naturally occurring microbial communities are not optimized for anthropogenic use. An emerging area of research is focusing on engineering synthetic microbial communities to carry out predefined functions. Microbial community engineers are applying design principles like top-down and bottom-up approaches to create synthetic microbial communities having a myriad of real-life applications in health care, disease prevention, and environmental remediation. Multiple genetic engineering tools and delivery approaches can be used to ‘knock-in' new gene functions into microbial communities. A systematic study of the microbial interactions, community assembling principles, and engineering tools are necessary for us to understand the microbial community and to better utilize them. Continued analysis and effort are required to further the current and potential applications of synthetic microbial communities.

The Speech-Language Pathologist in the Public Schools: Preparation for Real Life Practices From the Perspective of a Speech-Language Pathology Program Coordinator

2010 ◽  
Vol 11 (2) ◽  
pp. 60-65
Author(s):  
Francine Wenhardt
Keyword(s):  
Public Schools ◽  
School Setting ◽  
Real Life ◽  
Effective School ◽  
Program Coordinator ◽  
Educational Preparation ◽  
The Public ◽  
Speech Language Pathologist ◽  
New Graduate ◽  
Language Pathology

Abstract The speech-language pathologist (SLP) working in the public schools has a wide variety of tasks. Educational preparation is not all that is needed to be an effective school-based SLP. As a SLP currently working in the capacity of a program coordinator, the author describes the skills required to fulfill the job requirements and responsibilities of the SLP in the school setting and advises the new graduate regarding the interview process and beginning a career in the public schools.

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