Aircraft Design: A Conceptual Approach, Sixth Edition and RDSwin Student SET

2019 ◽  
Author(s):  
Daniel Raymer
Keyword(s):  
Aircraft Design ◽  
Conceptual Approach ◽  
Sixth Edition

scholarly journals Conceptual Advanced Transport Aircraft Design Configuration for Sustained Hypersonic Flight

Aerospace ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 91 ◽  
Author(s):  
Can Alkaya ◽  
Ashish Alex Sam ◽  
Apostolos Pesyridis
Keyword(s):  
Aircraft Design ◽  
Combined Cycle ◽  
Cfd Analysis ◽  
Conceptual Approach ◽  
Transport Aircraft ◽  
Hypersonic Flight ◽  
Hypersonic Aircraft ◽  
Conceptual Aircraft Design

The conceptual aircraft design and its integration with a combined cycle engine for hypersonic cruise at Mach 8 is documented in this paper. The paper describes the process taken to develop a hypersonic aircraft from a conceptual approach. The discussion also includes the design and CFD analysis of the integrated combined cycle engine. A final conceptual hypersonic transport aircraft with an integrated combined cycle engine was achieved through this study. According to the analysis carried out, the aircraft is able to take-off and land at the airports it is intended to be used and will be able to generate enough thrust to sustain hypersonic cruise at an altitude of 30 km.

Conceptual Design of an Unmanned Aerial Vehicle for Mars Exploration

2021 ◽  
Vol 6 (5) ◽  
pp. 111-117
Author(s):  
Ishan Mishra ◽  
Aayush Kumar ◽  
Vanshaj Malhotra
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Regional Scale ◽  
Aircraft Design ◽  
Planetary Science ◽  
Conceptual Approach ◽  
Near Surface ◽  
Thin Carbon ◽  
Aerial Vehicle ◽  
New Perspective ◽  
Aerial Systems

Significant technology advances have enabled planetary exploration aircraft to be considered as a viable science platform. These systems fill in a unique planetary science measurement gap, that of the regional scale, near-surface observation while providing a new perspective for planetary discovery. Exploration of Mars using UAV (Unmanned Aerial Vehicle) has been planned for over 25 years by leading space organizations such as NASA. Recent efforts have been able to produce some mature mission and flight system concepts, ready for flight project implementation. There are however si0gnificant numbers of challenges associated with getting an airplane to fly through the thin, carbon dioxide-rich Martian atmosphere. Traditional aircraft design expertise does not always apply to this sort of vehicle, and geometric, aerodynamic, and mission restrictions result in a restricted viable design space. This paper presents the conceptual approach that was taken to design a UAV capable of performing a VTOL (Vertical Take-Off and Landing) in the atmosphere of Mars. The UAV was designed to participate in the International Planetary Aerial Systems Challenge 2021. The UAV could carry a science payload of up to 5 kg (weight on mars). 

The AMA Guides in Pennsylvania “Post-Protz”: Act 111 and Case Law Update

2020 ◽  
Vol 25 (3) ◽  
pp. 12-19
Author(s):  
Justin D. Beck ◽  
Judge David B. Torrey
Keyword(s):  
Case Law ◽  
General Assembly ◽  
Disability Benefits ◽  
Permanent Disability ◽  
Sixth Edition ◽  
Legal Questions ◽  
The Supreme Court ◽  
Recent Edition ◽  
Impairment Ratings

Abstract Medical evaluators must understand the context for the impairment assessments they perform. This article exemplifies issues that arise based on the role of impairment ratings and what edition of the AMA Guides to the Impairment of Permanent Impairment (AMA Guides) is used. This discussion also raises interesting legal questions related to retroactivity, applicability of prior precedent, and delegation. On June 20, 2017, the Supreme Court of Pennsylvania handed down its decision, Protz v. WCAB (Derry Area Sch. Dist.), which disallows use of the “most recent edition” of the AMA Guides when determining partial disability entitlement under the Pennsylvania Workers’ Compensation Act. An attempted solution was passed by the Pennsylvania General Assembly and was signed into law Act 111 on October 24, 2018. Although it affirms that the AMA Guides, Sixth Edition, must be used for impairment ratings, the law reduces the threshold for total disability benefits from 50% to 35% impairment. This legislative adjustment benefited injured workers but sparked additional litigation about whether, when, and how the adjustment should be applied (excerpts from the laws and decisions discussed by the authors are included at the end of the article). In using impairment as a threshold for permanent disability benefits, evaluators must distinguish between impairment and disability and determine an appropriate threshold; they also must be aware of the compensation and adjudication process and of the jurisdictions in which they practice.

A Historical Review of Complex Regional Pain Syndrome in the “Guides Library”

2009 ◽  
Vol 14 (6) ◽  
pp. 1-9
Author(s):  
Robert J. Barth
Keyword(s):  
Differential Diagnosis ◽  
Complex Regional Pain Syndrome ◽  
Reflex Sympathetic Dystrophy ◽  
International Association ◽  
Historical Review ◽  
Pain Syndrome ◽  
Sixth Edition

Abstract Complex regional pain syndrome (CRPS) is a controversial, ambiguous, unreliable, and unvalidated concept that, for these very reasons, has been justifiably ignored in the “AMA Guides Library” that includes the AMAGuides to the Evaluation of Permanent Impairment (AMA Guides), the AMA Guides Newsletter, and other publications in this suite. But because of the surge of CRPS-related medicolegal claims and the mission of the AMA Guides to assist those who adjudicate such claims, a discussion of CRPS is warranted, especially because of what some believe to be confusing recommendations regarding causation. In 1994, the International Association for the Study of Pain (IASP) introduced a newly invented concept, CRPS, to replace the concepts of reflex sympathetic dystrophy (replaced by CRPS I) and causalgia (replaced by CRPS II). An article in the November/December 1997 issue of The Guides Newsletter introduced CRPS and presciently recommended that evaluators avoid the IASP protocol in favor of extensive differential diagnosis based on objective findings. A series of articles in The Guides Newsletter in 2006 extensively discussed the shortcomings of CRPS. The AMA Guides, Sixth Edition, notes that the inherent lack of injury-relatedness for the nonvalidated concept of CRPS creates a dilemma for impairment evaluators. Focusing on impairment evaluation and not on injury-relatedness would greatly simplify use of the AMA Guides.

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