Reliability and Maintainability Constrains for the Design, Production and Operation of Astronomical Equipment for the Antarctica

2007 ◽  
Vol 25 ◽  
pp. 273-277 ◽  
Author(s):  
W. Ansorge
Keyword(s):  
Design Production ◽  
Production And Operation

From the Digital-Twin to the Cyber Physical System Using Integrated Multidisciplinary Simulation

2021 ◽  
pp. 18-39
Author(s):  
Daniele Catelani
Keyword(s):  
Virtual Worlds ◽  
Computational Effort ◽  
Model Complexity ◽  
Reduced Order ◽  
Digital Twin ◽  
Order Of Magnitude ◽  
Design Production ◽  
Multidisciplinary Simulation ◽  
Lifecycle Management ◽  
Production And Operation

Simulation has been a competitive differentiator for engineering-driven businesses, available at all stages of the development process and lifecycle, used by the various domains within an organization, not necessarily simulation experts. It requires discipline integration, scalability, reduced-order model, and democratization. The concept of digital transformation involves new approaches for data and lifecycle management, the understanding of the digital thread, digital twin, predictive and cognitive capabilities, including improvement of model complexity, integration of physics, increase of knowledge. These trends require bringing the physical and virtual worlds closer together and also the adoption of cyber-physical model at all stages of design, production, and operation. To overcome the drawback of simulation and the need to balance the computational effort with accuracy and efficiency, new modelization strategies are adopted with ML and AI, which use a combination of virtual and physical data for training ROM, with an order of magnitude faster than the multiphysics one.

scholarly journals Structural Mechanics Aspect of Strength of Composite Reinforcement

2020 ◽  
Vol 212 ◽  
pp. 02002
Author(s):  
Vladimir Barsukov ◽  
Alla Volik ◽  
Svetlana Sazon
Keyword(s):  
Mechanical Analysis ◽  
Educational Process ◽  
Loading Capacity ◽  
Reinforcing Bars ◽  
Composite Construction ◽  
Lower Estimation ◽  
Design Production ◽  
Reinforcement Bar ◽  
Production And Operation ◽  
Composite Reinforcement

When operating in wet and corrosive conditions, composite reinforcement is in some cases an effective substitute for the suitable steel reinforcement. However, many questions related to its design, production and operation are insufficiently studied. The aim of the work is to create a methodology and carry out a comparative structural and mechanical analysis of strength indexes when working under load of coils and a bar of composite construction reinforcement. A method has been developed for analyzing the loading capacity of composite reinforcement according to the criteria of strength at rupture of a bar, as well as shear strength and bearing strength of its braid coils. Analytical and numerical modeling of conditions of equal strength of structural elements of composite construction reinforcement was carried out. Theoretically substantiated the assumption of a relatively low loading capacity of the braid coils in comparison with the loading capacity of the reinforcement bar. A predictive estimate of the conditions for ensuring the uniform strength of the bar for breaking and braid coils for shear and crushing by the method of lower estimation (for the minimum values of strength) has been carried out using the example of composite reinforcing bars produced by the industry of Republic of Belarus. In conclusion, results of work are formulated and it is noted that the results can be used by manufacturers and consumers of construction composite reinforcement, also in the educational process in the training of engineering personnel for the construction profile.

scholarly journals Digital Twin Technologies for Turbomachinery in a Life Cycle Perspective: A Review

2021 ◽  
Vol 13 (5) ◽  
pp. 2495
Author(s):  
Rong Xie ◽  
Muyan Chen ◽  
Weihuang Liu ◽  
Hongfei Jian ◽  
Yanjun Shi
Keyword(s):  
Life Cycle ◽  
Maintenance Phase ◽  
High Volume ◽  
Digital Twin ◽  
Industrial Internet ◽  
Life Cycle Perspective ◽  
Challenges And Opportunities ◽  
Design Production ◽  
Production And Operation ◽  
Modelling Simulation

Turbomachinery from a life cycle perspective involves sustainability-oriented development activities such as design, production, and operation. Digital Twin is a technology with great potential for improving turbomachinery, which has a high volume of investment and a long lifespan. This study presents a general framework with different digital twin enabling technologies for the turbomachinery life cycle, including the design phase, experimental phase, manufacturing and assembly phase, operation and maintenance phase, and recycle phase. The existing digital twin and turbomachinery are briefly reviewed. New digital twin technologies are discussed, including modelling, simulation, sensors, Industrial Internet of Things, big data, and AI technologies. Finally, the major challenges and opportunities of DT for turbomachinery are discussed.

Complexity and Modularity

2020 ◽  
pp. 67-96
Author(s):  
Henri Schildt
Keyword(s):  
Complex Systems ◽  
Scale Up ◽  
Digital Technologies ◽  
Technological Systems ◽  
Important Concept ◽  
Central Response ◽  
Design Production ◽  
The Creation ◽  
Production And Operation

Modularity is the single most important concept related to software and digitalization, and one that every manager and many experts should understand. This chapter elaborates modularity as a central response to complexity that relates to the design, production, and operation of technological systems. Digital technologies increase modularity by facilitating the creation of clear interfaces between sub-systems and processes. This, in turn, allows complex systems to be split into autonomous parts that can be developed and installed independently. Modularity allows companies to scale up their activities more quickly and cheaply, while also facilitating innovation both within modules, by eliminating interdependencies that hamper development efforts, and at the architectural level, through the creative recombination of pre-existing modules.

A Study of Vector-Valued Binary Scaling Functions and Parseval Frames with Integer Dilation Constant

2013 ◽  
Vol 321-324 ◽  
pp. 980-983
Author(s):  
Bing Qing Lv ◽  
Jing Huang
Keyword(s):  
Materials Science ◽  
Analysis Method ◽  
Time Frequency ◽  
Finite Group Theory ◽  
Parseval Frames ◽  
Design Production ◽  
Novel Method ◽  
Analysis Design ◽  
Production And Operation ◽  
Vector Valued

Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machines and tools. It is one of the oldest and broadest engineering disciplines. The notion of orthogonal vector-valued binary wavelet packs is introduced. Their traits is investigated by virtue of time-frequency analysis method and finite group theory. Orthogonality formulas are established. Orthonormal wavelet pack bases are obtained. A novel method for constructing a kind of orthogonal shortly supported vector-valued wavelets is presented.

scholarly journals Assessment of means of mechanization of construction risks using catastrophe theory

2018 ◽  
Vol 251 ◽  
pp. 03008
Author(s):  
Vladimir Zorin ◽  
Natali Baurova
Keyword(s):  
Catastrophe Theory ◽  
Technical Condition ◽  
Risk Level ◽  
Design Production ◽  
Service Conditions ◽  
Construction Risks ◽  
Production And Operation

In article questions of assessment of the risks arising in the course of design, production and operation of means of mechanization of construction using catastrophe theory are considered. In the course of operation of the machine malfunctions, suddenly defiant refusals of details gradually collect. The device of the theory of accidents allows to develop models of change of technical condition and operational properties of a details material for various service conditions. In the field of space of conditions of the system containing critical signs accident emergence conditions (refusal of a detail and an emergency) are created. Assessment of probability of emergence of refusal during a certain period of operation of the machine taking into account weight of consequences allows to establish risk level.

scholarly journals Supporting the life cycle of complex technical systems on the basis of intelligent technologies and predictive analytics

2019 ◽  
pp. 314-323
Author(s):  
V N Blinov ◽  
S S Valeev ◽  
N V Kondratyeva ◽  
R R Karimov ◽  
A S Kovtunenko ◽  
...  
Keyword(s):  
Life Cycle ◽  
Predictive Model ◽  
Predictive Analytics ◽  
Propulsion System ◽  
Information Support ◽  
Neural Network System ◽  
Design Production ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
Production And Operation

The application of predictive analytics in the design, production and operation to achieve the efficiency of the life cycle of complex technical systems is discussed. A predictive model of information support for the life cycle of a microsatellite propulsion system based on a neural network system is proposed. The predictive model can solve the problem of estimating fuel consumption, diagnosing and detecting possible failures of a small propulsion system.

Increasing the Bearing Capacity and Operational Reliability of Wooden Structures with Additional Elements

2020 ◽  
pp. 28-32
Keyword(s):  
Bearing Capacity ◽  
Operational Reliability ◽  
Building Structures ◽  
Material Resources ◽  
Advantages And Disadvantages ◽  
Construction Experience ◽  
Design Production ◽  
Structural Methods ◽  
Wooden Structures ◽  
Production And Operation

The article describes the main advantages and disadvantages of wooden structures, considers the main methods for improving their operational reliability as well as ways to solve the problem of reducing the material consumption of wooden structures. The indicator determining the efficiency of using material resources and, therefore, the economy of the structure, the level of methods of design, production and operation of structures is the safety factor. Its acceptable value is determined based on the experience of design and operation, and is found as the ratio of the destructive load to the design load-bearing capacity. The article, based on the analysis of design and construction experience, discusses some structural methods and methods to improve the reliability and durability of wooden building structures, such as reinforcement and the use of a set of perforated fasteners in the form of corners, plates and supports. The elements of structures and technologies for manufacturing wooden building structures using reinforcement, as well as using various types of fasteners, considered in this work, are of the greatest interest and are relevant in modern construction both when designing new structures, and during repair, restoration and reinforcement.

Methods for evaluation the manufacturability of a vehicle

2020 ◽  
pp. 152-160
Keyword(s):  
Neural Network ◽  
Initial Data ◽  
Comparative Data ◽  
Training Algorithm ◽  
Neural Network Method ◽  
The Neural Network ◽  
Network Method ◽  
Calculation Results ◽  
Production And Operation

Methods for evaluation the manufacturability of a vehicle in the field of production and operation based on an energy indicator, expert estimates and usage of a neural network are stated. By using the neural network method the manufacturability of a car in a complex and for individual units is considered. The preparation of the initial data at usage a neural network for predicting the manufacturability of a vehicle is shown; the training algorithm and the architecture for calculating the manufacturability of the main units are given. According to the calculation results, comparative data on the manufacturability vehicles of various brands are given.

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