Dynamic Analysis of Detonation Chamber and Assessment Based on ASME Code Section VIII, Division 3 and Code Case 2564

Author(s):  
Takao Shirakura ◽  
Joseph K. Asahina ◽  
Koichi Hayashi ◽  
Masahiko Ouchi

The most simple and effective method for destroying chemical weapons, and thus eliminating stockpiling problems, is to detonate the entire payload in a chamber without separating the chemical agent from the explosives. A double walled chamber was developed by Kobe Steel, Ltd. (KSL) and has destroyed more than 7000 chemical weapons throughout the world since 2000. Explosion analysis (by AUTODYN) and dynamic structural analysis (by LS-DYNA) performed during development of the chamber design are presented with the experimental results. Design of the latest version of the double walled chamber was evaluated in accordance with the ASME Code Section VIII, Division 3 and Code Case 2564 based on the results of dynamic analysis and measured strains.

2012 ◽  
Vol 591-593 ◽  
pp. 2143-2147
Author(s):  
Chuan Dong Lv ◽  
Ji Fei Cai ◽  
Guang Li ◽  
Rui Ming Fang

Brushes-type blanket washer’s function is rubbing a high speed spinning brush roller against blanket roller, so as to clean the paper-lints and ink which adhere to the surface of blanket cylinder. It is very important to do a research into the dynamic structural analysis of the washer which determines the stability of this equipment. With the gyroscopic effect dynamic analysis of brush blanket, we get the relation curve between central offset of the washer and the load of permanent joint. The result show that a minute alteration of the central offset causes effect change of the load. This result provides a theoretical basis to control the effect change and then improve the stability and decrease the cost.


Author(s):  
Adrián Bertorello

RESUMENEl trabajo examina críticamente la afirmación central de la hermenéutica de Paul Ricoeur, a saber, que el soporte material de la escritura es el rasgo determinante para que una secuencia discursiva sea considerada como un texto. La escritura cancela las condiciones fácticas de la enunciación y crea, de este modo, un ámbito de sentido estable en el que se puede validar una concepción de la subjetividad que está implicada en las dos estrategias de lecturas (el análisis estructural y la apropiación), esto es, un sujeto pasivo que se constituye por la idealidad del significado. Asimismo, el trabajo intentará precisar una serie de ambigüedades en el uso que Ricoeur hace del «ser en el mundo» para sostener la referencialidad del discurso.PALABRAS CLAVETEXTO, ESCRITURA, REFERENCIA, SUBJETIVIDAD, MUNDOABSTRACTThis paper critically examines the main assertion of Paul Ricoeur´s hermeneutics, i.e., that the material base of writing is the determining feature to consider a discursive sequence as a text. Writing cancels the factual conditions of enunciation and creates, in this way, a background of stable meaning where it is possible to validate a conception of subjectivity implicated in the two reading strategies (the structural analysis and the appropriation), i.e., a passive subject constituted by the ideality of meaning. Likewise, this paper aims to clarify some ambiguities in the way Ricoeur uses the «beings in the world» to support the discourse referentiality.KEY WORDSTEXT, WRITING, REFERENCE, SUBJECTIVITY, WORLD


2018 ◽  
Vol 50 (04) ◽  
pp. 561-570
Author(s):  
I. A. QAZI ◽  
A. F. ABBASI ◽  
M. S. JAMALI ◽  
INTIZAR INTIZAR ◽  
A. TUNIO ◽  
...  

Author(s):  
Simon Nicholls ◽  
Michael Pushkin ◽  
Vladimir Ashkenazy

An introduction by Boris de Schloezer gives the genesis of the final text in the section, the Preliminary Action, and explains its relation to Skryabin’s projected life-work, the Mystery. Section I: an effusion of Orthodox religious feeling from teenage years. Sections II-VII: Around 1900, an expression of rejection of God in the face of disillusion is followed by the text of the choral finale of the First Symphony, declaring faith in the power of art. An unfinished opera libretto, symbolic in narrative, expressing belief in Art’s power to seduce and persuade. Three notebooks develop a world view in which the world is the result of the self’s creative activity. The creation of art and of the universe are identical. There is a higher self, identical with divinity. Forgetfulness of individuality leads to freedom and universal consciousness. Section VIII: The literary poem written during the composition of the symphonic Poem of Ecstasy summarises the scenario developed in the notebooks. Life starts with the desire to create, delight in creative play meets opposition, the creative goal is achieved and disappointment sets in. The process is repeated until it is realized that the struggle is itself joyful and self-affirmation is achieved. Section IX: The text of the Preliminary Action is symbolic in structure. Primal Male and Female Principles emerge; the Female is identified with Death. Life arises from the union of energies. Struggle and bloodshed follow. The conclusion is an impulse towards unification, the synthesis of experience and dematerialisation. Both the complete first draft and the incomplete revision are included.


Author(s):  
Mark A. Griep ◽  
Marjorie L. Mikasen

ReAction! gives a scientist's and artist's response to the dark and bright sides of chemistry found in 140 films, most of them contemporary Hollywood feature films but also a few documentaries, shorts, silents, and international films. Even though there are some examples of screen chemistry between the actors and of behind-the-scenes special effects, this book is really about the chemistry when it is part of the narrative. It is about the dualities of Dr. Jekyll vs. inventor chemists, the invisible man vs. forensic chemists, chemical weapons vs. classroom chemistry, chemical companies that knowingly pollute the environment vs. altruistic research chemists trying to make the world a better place to live, and, finally, about people who choose to experiment with mind-altering drugs vs. the drug discovery process. Little did Jekyll know when he brought the Hyde formula to his lips that his personality split would provide the central metaphor that would come to describe chemistry in the movies. This book explores the two movie faces of this supposedly neutral science. Watching films with chemical eyes, Dr. Jekyll is recast as a chemist engaged in psychopharmaceutical research but who becomes addicted to his own formula. He is balanced by the often wacky inventor chemists who make their discoveries by trial-and-error.


2021 ◽  
Vol 54 (2) ◽  
pp. 273-296
Author(s):  
Peter Thompson

AbstractIn April of 1915, the German-Jewish chemist Fritz Haber supervised the first deployment of industrialized chemical weapons against French colonial troops. The uncertain nature of the attack, both in its execution and outcome, led many German military men to question the controllability of poison gas. Over the next three decades, Germans would continue this line of inquiry, as aero-chemical attacks appeared increasingly imminent. This article narrates the German search for control over chemical weapons between the world wars, revealing the ways in which interwar techno-nationalists tied the mastery of poison gas to ethno-racial definitions of Germanness. Under the Nazis, leaders in civilian aero-chemical defense picked up this interwar thread and promoted a dangerous embrace of gas that would supposedly cull the technically superior Germans from other lesser races. Although this vision of a chemically saturated world did not suffuse German society, such logic did play out in the gas chambers of the Holocaust.


Author(s):  
Tomoaki Utsunomiya ◽  
Shigeo Yoshida ◽  
Hiroshi Ookubo ◽  
Iku Sato ◽  
Shigesuke Ishida

This paper is concerned with the development of a Floating Offshore Wind Turbine (FOWT) utilizing spar-type floating foundation. In order to design such a structure, it is essential to evaluate the dynamic response under extreme environmental conditions. In this study, therefore, a dynamic analysis tool has been developed. The dynamic analysis tool consists of a multi-body dynamics solver (MSC.Adams), aerodynamic force evaluation library (NREL/AeroDyn), hydrodynamic force evaluation library (In-house program named SparDyn), and mooring force evaluation library (In-house program named Moorsys). In this paper, some details of the developed dynamic analysis tool are given. In order to validate the program, comparison with the experimental results, where the wind, current and wave are applied simultaneously, has been made. The comparison shows that satisfactory agreements between the simulation and the experimental results are obtained. However, when VIM (Vortex Induced Motion) occurs, the current loads and cross flow responses (sway and roll) are underestimated by the simulation since the simulation code does not account for the effect of VIM.


2014 ◽  
Vol 621 ◽  
pp. 253-259
Author(s):  
Jing Qian ◽  
Ling Wei Meng

Based on the automatic dynamic analysis of mechanical systems software, both rigid and flexible models of the space-swing mechanism for the superpave gyratory compactor are developed. The structural analysis shows that the length and the initial phase of cranks, and the assembling accuracy (coordinates) of some points are very sensitive relative to the waving of compaction angle. Greater rigidity helps stabilize the change of the compaction angles.


2009 ◽  
Vol 131 (3) ◽  
Author(s):  
R. D. Dixon ◽  
E. H. Perez

The available design formulas for flat heads and blind end closures in the ASME Code, Section VIII, Divisions 1 and 2 are based on bending theory and do not apply to the design of thick flat heads used in the design of high pressure vessels. This paper presents new design formulas for thickness requirements and determination of peak stresses and stress distributions for fatigue and fracture mechanics analyses in thick blind ends. The use of these proposed design formulas provide a more accurate determination of the required thickness and fatigue life of blind ends. The proposed design formulas are given in terms of the yield strength of the material and address the fatigue strength at the location of the maximum stress concentration factor. Introduction of these new formulas in a nonmandatory appendix of Section VIII, Division 3 is recommended after committee approval.


2018 ◽  
Vol 2 (1) ◽  
pp. 41
Author(s):  
Dharma Satrya HD

<p>This paper discusses Kiki Sulistyo’s strategy for reaching position in Indonesia literary field. This research applied phenomenology and structural analysis method. Data were gathered by interview and objectification from social structure. The style of the writers’ poems and his consciousness toward Lombok were analyzed by phenomenology. The research result shows that Lombok literary field is denoted as the economy upside. Kiki Sulistyo denounces the world economy, thus moving within the production of a restricted arena. Kiki Sulistyo created literature as a movement, so he formed <em>Akar Pohon</em> community. Through this community, he generates a young poet and simultaneously undertakes a project of publishing works. Two anthologies of poetry he published brought him to the position of a legitimate poet. The legitimacy is given by poets, literary scholars, and institutions</p>


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