Hasil untuk "Mechanical drawing. Engineering graphics"

Abir Bouhamed, Hanen Jrad, Mondher Wali et al.

Congyi Zhang, Lei Yang, Nenglun Chen et al.

Nelli Ismailova

The founder of the scientific school of applied geometry in Odessa was Anatoly Podkorytov, academician of the higher school of Ukraine, doctor of technical sciences, professor. During the scientific and pedagogical activity, A. Podkorytov prepared 15 candidates of technical sciences, 3 doctors of technical sciences.
 He was awarded the Order of the Badge of Honor, silver and bronze medals for the development of 5 automatic installations that were exhibited at the exhibition of achievements of the national economy, he was also awarded two government awards. A. Podkorytov is the author of 27 copyright certificates for inventions, more than 549 printed scientific and methodological works published in Ukraine and abroad. Among them are several textbooks and textbooks on sketching geometry, computer graphics, several monographs. A. Podkorytov edited inter-university scientific and methodological collections on textual geometry.
 Today, the head of the scientific school "Applied Geometry and Engineering Graphics" named after Anatoly Nikolayevich Podkorytov is his student, Academician of the Higher School of Ukraine, Doctor of Technical Sciences, Professor Ismailova Nellya.
 The basis of all research areas of the scientific school is applied mechanics, the main areas of scientific research are related to weapons and military equipment. Representatives of the scientific school are engaged in geometric modeling of technical forms and automation of their design process.

D.M. Woo

Nathan W. Hartman

It has been suggested there is a knowledge base that surrounds the use of 3D modeling within the engineering design process and correspondingly within engineering design graphics education. While solid modeling receives a great deal of attention and discussion relative to curriculum efforts, and rightly so, surface modeling is an equally viable 3D modeling option in many circumstances within industry as well as academic settings. However, is often not given its due consideration within engineering design graphics (EDG) curricula for a variety of reasons, some being more practically oriented than others. This paper is an effort to provide a rationale for the inclusion of 3D surface modeling into the EDG body of knowledge, an example of the inclusion of such a course in an EDG curriculum, and potential topics to be covered and assessment strategies to be used during the instruction.

Ita Novita Sari, Sulaeman Deni Ramdani

Daw-Kwei Leu, Jen-Yu Wu

A new and practically applicable equation, including the normal anisotropy R, the strain hardening exponent n, the friction coefficient μ, and the bending factor t0/rd for estimating the limiting drawing ratio LDR (a measure of drawability of sheet metal) in cup drawing of a cylindrical cup with a flat-nosed punch is derived by an elementary theory of plasticity in an explicit form. Whiteley’s and Leu’s equations for estimating the LDR, and Hill’s upper limit value of LDR, all are the special cases of the derived equation. The estimation of LDR agrees well with the experiment. It is shown that the most important parameters for LDR are the normal anisotropy R and friction coefficient μ, however the strain hardening exponent n has little effect on the LDR. On the other hand, a new and simple equation, incorporating the derived LDR and the critical drawing load Pc, for estimating the maximum drawing load Pd at a certain drawing ratio is derived. It also agrees well with the experiment. It is thereby possible to better understand and control the drawing limit of sheet metal in industry necessity.

J. L. Batoz, H. Naceur, A. Delamézière et al.

C. W. MacCord

C. W. MacCord

C. W. McCord

C. W. MacCord

C. W. McCord

C. W. Maccord