Computer-Aided Design of Valves-Integrated Microfluidic Layouts Using Parameter-Guided Electrical Models

2018 ◽  
Author(s):  
Oron Feinerman ◽  
Mor Sofer ◽  
Elishai Ezra Tsur
Keyword(s):  
Computer Aided Design ◽  
Quantum Physics ◽  
Integrated Design ◽  
Electric Circuit ◽  
Physical Constraints ◽  
Analysis Methodology ◽  
Current Design ◽  
Design Paradigm ◽  
Circuit Analogy ◽  
Aided Design

Integrated microfluidic networks are being rapidly deployed in academia and industry for a vast spectrum of applications, ranging from molecular biology to quantum physics. Current design paradigm for microfluidic layouts is typically based on numerical modeling, which is not suitable for rapid prototyping nor parameter driven design. Here, we utilize the hydraulic-electric circuit analogy to propose a circuit analysis methodology and an open-source framework for a parameter-guided design of integrated microfluidic layouts. We provide a method with which a user can intuitively define the circuit’s constraints and an algorithm which optimizes the hydraulic layout according to physical constraints. Our algorithm supports valves-integrated design and provides a simulation framework that describes fluid flow with different valves configuration.

scholarly journals Computer-Aided Design of Microfluidic Circuits

2020 ◽  
Vol 22 (1) ◽  
pp. 285-307 ◽  
Author(s):  
Elishai Ezra Tsur
Keyword(s):  
Computer Aided Design ◽  
Integrated Design ◽  
Optimization Methods ◽  
Performance Requirements ◽  
Computer Aided ◽  
Paper Based Microfluidics ◽  
Specification Synthesis ◽  
Description Languages ◽  
Aided Design

Microfluidic devices developed over the past decade feature greater intricacy, increased performance requirements, new materials, and innovative fabrication methods. Consequentially, new algorithmic and design approaches have been developed to introduce optimization and computer-aided design to microfluidic circuits: from conceptualization to specification, synthesis, realization, and refinement. The field includes the development of new description languages, optimization methods, benchmarks, and integrated design tools. Here, recent advancements are reviewed in the computer-aided design of flow-, droplet-, and paper-based microfluidics. A case study of the design of resistive microfluidic networks is discussed in detail. The review concludes with perspectives on the future of computer-aided microfluidics design, including the introduction of cloud computing, machine learning, new ideation processes, and hybrid optimization.

scholarly journals Project-based learning of advanced CAD/CAE tools in engineering education

2020 ◽  
Vol 14 (3) ◽  
pp. 1071-1083
Author(s):  
Giovanni Berselli ◽  
Pietro Bilancia ◽  
Luca Luzi
Keyword(s):  
Engineering Education ◽  
Computer Aided Design ◽  
Integrated Design ◽  
Optimal Solution ◽  
Project Based Learning ◽  
Design Environment ◽  
Mechanical Devices ◽  
Aided Design ◽  
The University

Abstract The use of integrated Computer Aided Design/Engineering (CAD/CAE) software capable of analyzing mechanical devices in a single parametric environment is becoming an industrial standard. Potential advantages over traditional enduring multi-software design routines can be outlined into time/cost reduction and easier modeling procedures. To meet industrial requirements, the engineering education is constantly revising the courses programs to include the training of modern advanced virtual prototyping technologies. Within this scenario, the present work describes the CAD/CAE project-based learning (PjBL) activity developed at the University of Genova as a part of course named Design of Automatic Machines, taught at the second level degree in mechanical engineering. The PjBL activity provides a detailed overview of an integrated design environment (i.e. PTC Creo). The students, divided into small work groups, interactively gain experience with the tool via the solution of an industrial design problem, provided by an engineer from industry. The considered case study consists of an automatic pushing device implemented in a commercial machine. Starting from a sub-optimal solution, the students, supervised by the lecturers, solve a series of sequential design steps involving both motion and structural analysis. The paper describes each design phase and summarizes the numerical outputs. At last, the results of the PjBL activity are presented and commented by considering the opinions of all the parties involved.

scholarly journals Right the First Time

2008 ◽  
Vol 130 (06) ◽  
pp. 30-34 ◽  
Author(s):  
Brian MacCleery ◽  
Nipun Mathur
Keyword(s):  
Computer Aided Design ◽  
Integrated Design ◽  
Gear Ratio ◽  
Motion Simulation ◽  
Web Based ◽  
Trade Offs ◽  
Systems Software ◽  
Integrated Design Process ◽  
Aided Design ◽  
And Control

This paper discusses development of new tools that can help mechanical engineers avoid common pitfalls in designing complex mechatronic motion control systems. To help facilitate a more integrated design process for electromechanical systems, software developers are partnering with electrical and control design companies to add motion simulation capabilities to computer-aided design (CAD) environments to create a more unified mechatronics workflow. Integrating motion simulation with CAD simplifies design because the simulation uses information that already exists in the CAD model, such as assembly mates, couplings, and material mass properties. Simulations also simplify evaluating engineering trade-offs between different conceptual designs. The paper also highlights that several web-based motor-sizing tools have been designed to help sort through the thousands of choices, and some include motor data from multiple vendors. Using realistic multiaxis motion profiles to drive simulation can provide more accurate torque and velocity requirements, which depend on the acceleration characteristics of your motion profiles and the mass, friction, and gear ratio properties of the transmission.

ANALYTICAL PARTITION OF SOFTWARE COMPONENTS FOR EVOLVABLE AND RELIABLE MEMS DESIGN TOOLS

1999 ◽  
Vol 09 (02) ◽  
pp. 153-171
Author(s):  
CAROL L. HOOVER ◽  
PRADEEP K. KHOSLA
Keyword(s):  
Computer Aided Design ◽  
Microelectromechanical Systems ◽  
Future Research ◽  
Optimized Design ◽  
Software Components ◽  
Mems Accelerometer ◽  
Reliable Performance ◽  
Current Design ◽  
High Assurance ◽  
Aided Design

Transforming software requirements into a software design involves the iterative partition of a solution into software components. The process is human-intensive and does not guarantee that design objectives such as reusability, evolvability, and reliable performance are satisfied. The costly process of designing, building, and modifying high-assurance systems motivates the need for precise methods and tools to generate designs whose corresponding implementations are reusable, evolvable, and reliable. This paper demonstrates an analytical approach for partitioning basic elements of a software solution into reusable and evolvable software components. First, we briefly overview the role of partitioning in current design methods and explain why computer-aided design (CAD) tools to automate the design of microelectromechanical systems (MEMS) are high-assurance applications. Then we present our approach and apply it to the design of CAD software to layout an optimized design of a MEMS accelerometer to be used in the navigational units of aircraft. Lastly, we discuss the implications of our approach and future research directions.

scholarly journals Methods of integrated computer-aided design of structural elements of the aircraft

2015 ◽  
pp. 92-98
Author(s):  
Деніс Миколайович Данилюк ◽  
Геyнадій Анатолійович Вірченко
Keyword(s):  
Computer Aided Design ◽  
Parametric Design ◽  
Three Dimensional ◽  
Integrated Design ◽  
Longitudinal Force ◽  
Structural Elements ◽  
Method Of Calculation ◽  
Computer Aided ◽  
Force Element ◽  
Aided Design

Previously applied methods of designing aircraft based on two-dimensional geometric models that made it impossible to take into account all the necessary design and technological features. It was a prerequisite for the development of an integrated methodology that includes design and computer simulation of three-dimensional parametric design of the aircraft as a whole and its individual parts [2-5]. In this paper, the method of computer-aided design stringer at the master model geometry and space allocation wing aircraft.In article approaches to integrated computer-aided design. These types of problems preliminary design and the method of calculation of typical aircraft structural elements for example longitudinal force element sets as stringer. Also, the algorithm constructs a fully stringer system aided design of integrated Siemens NX. What can shorten the design time and use it as a reference for the calculation and further change just values for other dimensions stringers.Methods integrated design ensure the application of standard parametric analytical stringers in the calculation of aerodynamics and strength, life and vitality, weight of the aircraft and its alignment, safety of structures, as well as technological preparation of production and quality control, maintenance and repair.Considered aided design techniques can be extended to other than the stringers typical elements airframe.

Interactive graphics in structural analysis

1983 ◽  
Vol 10 (3) ◽  
pp. 396-407
Author(s):  
J. L. Humar
Keyword(s):  
Data Base ◽  
Circuit Design ◽  
Computer Aided Design ◽  
Electronic Circuit ◽  
Electric Circuit ◽  
Interactive Graphics ◽  
Computer Aided ◽  
Video Terminal ◽  
Aided Design ◽  
Electronic Circuit Design

Interactive computer graphics which implies a continuous exchange of information between the computer and the user has emerged as a very powerful tool in engineering applications. Computer-aided design (CAD) and computer-aided manufacturing (CAM) have found use in electronic circuit design, manufacturing, mapping, and architectural and engineering planning. Using CAD, a machine part, an electric circuit, or a building plan can be drawn and displayed on a video terminal. The product or plan can then be manipulated, rotated, viewed from different angles, or separated into segments. The graphic and attribute information related to the drawing is stored in a data base, and can be retrieved and modified at any time. At a more sophisticated level of CAD, the data base is used to generate input data for a finite element or another analysis program. This paper presents a brief survey of the CAD scene and the hardware and software available and describes the use of interactive graphics in generating data input for analysis.

Computer aided design in education and its’ interpretation through design thinking

2016 ◽  
Author(s):  
Abdullah Togay ◽  
Merve Coşkun ◽  
Serkan Güneş ◽  
Çiğdem Güneş
Keyword(s):  
Computer Aided Design ◽  
Design Education ◽  
Design Thinking ◽  
Design Tools ◽  
Computer Aided ◽  
Current Design ◽  
Current Content ◽  
Tools And Techniques ◽  
Aided Design ◽  
Alternative Solutions

The notion of “design thinking” can be regarded as a way of thinking that consists of both divergent and convergent phases. As a creative problem solving methodology, it first defines the problem with a human-centered perspective and then analyzes all the aspects of the problem as a part of a whole. This approach can be applied in all fields, including design education. With the emerging technology, computer-aided design tools and techniques have become an indispensable part of design professions, and therefore education. However, the way how computer-aided design tools and techniques should be integrated into current design education has not been discussed adequately. This study aims to frame the problems related to the current content, structure and timing of CAD courses. The alternative solutions regarding the integration of CAD courses to product design education will be proposed by using design thinking method.Keywords: design thinking, computer aided design (CAD), design education 

SIMULATION OF THE FIGHTING IN THE DOMESTIC CAD SOFTWARE RADAR FULL END-TO-END CYCLE

2018 ◽  
pp. 30-34
Author(s):  
A. P. Konovalchik ◽  
O. A. Plaksenko ◽  
A. O. Schiriy
Keyword(s):  
Computer Aided Design ◽  
Import Substitution ◽  
Integrated Design ◽  
Design Parameters ◽  
Design System ◽  
Loop Design ◽  
Radar Systems ◽  
Computer Aided ◽  
End To End ◽  
Aided Design

JSC Almaz-Antey in the implementation of the integrated design of complex electronic systems, particularly radar systems, it is required to solve the problem of choosing and optimizing the design parameters of radar devices, including antenna systems, transmitter-receiver paths of radar systems (radar), algorithms and devices for digital generation and processing of radar signals, and radar systems in General. Currently there is no domestic computer-aided design systems that solve these tasks in the complex. Therefore, to solve such problems, the Concern’s enterprises are used by a number of disparate software solutions with their own development and their foreign counterparts. Due to the restrictions caused by the sanctions, the closed scope of the work, as well as in import substitution, highly relevant is the creation of CAD radar, allowing to solve the above problems in a continuous end-to-end loop design. The development of CAD radar conducted by the JSC Almaz-Antey, its subsidiaries and companies with expertise in the design of the radar, using their existing backlog. The paper shows the General architecture of a domestic computer aided design in full cycle end-to-end radar systems (facilities, stations); the concept of five levels of design in the system being developed and the basic requirements for the implementation of this concept. The specificity of the developed computer-aided design system is most pronounced in activity-based scenarios for the use of the designed product in terms of specific air and space attack and defense, and is implemented in the form of functional simulation of the fighting.

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