Abstractions and base operations of a specialized description \ language of algorithms for solving problems of structural analysis and synthesis

2013 ◽  
Vol 13 (12) ◽  
Author(s):  
Galina Ivanova
1973 ◽  
Vol 95 (2) ◽  
pp. 525-532 ◽  
Author(s):  
M. Huang ◽  
A. H. Soni

Using graph theory and Polya’s theory of counting, the present paper performs structural synthesis and analysis of planar and three-dimensional kinematic chains. The Section 2 of the paper develops a mathematical model that permits one to perform structural analysis and synthesis of planar kinematic chains with kinematic elements such as revolute pairs, cam pairs, springs, belt-pulley, piston-cylinder, and gears. The theory developed is applied to enumerate eight-link kinematic chains with these kinematic elements. The Section 3 of the paper develops a mathematical model that permits one to perform structural analysis and synthesis of multi-loop spatial kinematic chains with higher and lower kinematic pairs. The theory developed is applied to enumerate all possible two-loop kinematic chains with or without general constraints.


2008 ◽  
Vol 55 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Hideki Okada ◽  
Naoki Kawazoe ◽  
Akira Yamamori ◽  
Shuichi Onodera ◽  
Norio Shiomi

Robotica ◽  
2015 ◽  
Vol 34 (11) ◽  
pp. 2467-2485 ◽  
Author(s):  
Wen-ao Cao ◽  
Huafeng Ding ◽  
Ziming Chen ◽  
Shipei Zhao

SUMMARYThis paper presents a systematic method for dealing with mobility analysis and structural synthesis of a class of important spatial mechanisms with coupling chains, which involve more complex coupling relations than spatial parallel mechanisms. First, an approach to the establishment of the motion screw equation of the class of mechanisms is derived. Then, a general methodology for mobility analysis along with detection of rigid substructures is proposed based on the motion screw equation. Third, the principle of structural synthesis of the class of mechanisms is established on the basis of the method of mobility analysis. Finally, some novel spatial mechanisms with coupling chains are synthesized, illustrating the effectiveness of the method. The study of the paper will benefit structural analysis and synthesis of more complex spatial mechanisms with coupling chains.


Author(s):  
O. Pimenova O. ◽  
S. Pimenov

The necessity of formation of integrated reporting by Ukrainian enterprises is investigated. The importance of business presentation of information on the company's value creation, its effectiveness, opportunities, risks it faces, and development prospects for investors and other stakeholders in the form of integrated reporting is determined. It is investigated that integrated reporting should provide stakeholders with information on the long-term development of the enterprise in contrast to financial reporting, which cannot provide such full information. That is the main purpose of integrated reporting is to explain to financial capital providers and other stakeholders how an enterprise creates and plans to create the value in the future over a long period of time. The purpose of the study is to substantiate the need of taking into account the needs of stakeholders in the work of enterprise and the disclosure of non-financial information in the form of integrated reporting, which will increase the efficiency of the business model. The methodological basis of the study is a set of general and special principles, provisions and methods of scientific research, the use of which is determined by the purpose and objectives, in particular, methods of generalization, comparison, analysis and synthesis, methods of system and structural analysis, diagnostic evaluation. In particular, in the process of research the methods of generalization, analysis and synthesis were used in defining the concept of integrated reporting and its individual elements; methods of system and structural analysis in the study of the basic principles of integrated reporting; method of comparison in the study of scientific approaches to the formation of integrated reporting. It is substantiated that by providing information on value creation, in particular on the company's competitive advantages, strategic assets, environmental, social and management indicators (ESG), the company will gain an advantage over competitors, effectively implementing its business model in the market and be able to achieve sustainable development in the long run.


Author(s):  
C. Vaida ◽  
N. Plitea ◽  
B. Gherman ◽  
A. Szilaghyi ◽  
B. Galdau ◽  
...  

Author(s):  
Peiren He ◽  
Wenjun Zhang ◽  
Qing Li

Abstract Identification of kinematic chains is needed when studying in structural analysis and synthesis of mechanisms. Research on detection of isomorphism in graphs/kinematic chains has a long history. Many algorithms or methods have been proposed. However, these methods have only achieved success in restricted conditions. This paper proposes a new approach using the concept of quadratic form. Graphs/kinematic chains are first represented by their adjacency matrices, the eigenvalues and their eigenvectors corresponding to these adjacency matrices are then calculated. Two graphs are represented by two quadratic expressions. The comparison of two graphs reduces to the comparison of two quadratic expressions. Quadratic expressions are characterized by the eigenvalues and eigenvectors. An algorithm is developed to compare, correspondingly, eigenvalues and eigenvectors of two graphs, known test cases are used to verify the effectiveness of the approach.


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