Preliminary Design Analysis of a Catalytic Ceramic Structure in a Turbine Combustor

1981 ◽  
Vol 103 (2) ◽  
pp. 338-344
Author(s):  
W. S. Y. Hung ◽  
W. H. Dickson ◽  
S. M. DeCorso
Keyword(s):  
Steady State ◽  
Preliminary Analysis ◽  
Mechanical Analysis ◽  
Preliminary Design ◽  
Support Structure ◽  
Ceramic Structure ◽  
Analysis And Design ◽  
Design Considerations ◽  
Low Emission ◽  
Conceptual Designs

Analysis and design of a catalytic ceramic element and its support structure in a turbine combustor for low emission application have been performed. Preliminary analysis including a survey of literature has helped identify certain design considerations and conceptual designs of the catalytic ceramic element. A thermo-mechanical analysis of the major components in these conceptual designs has been performed for both steady-state and transient (shut-down) situations. Consequently, an arrangement to build a viable catalytic ceramic combustor element has been identified which is expected to perform its mechanical functions.

scholarly journals Structure Analysis and Design of Automobile plastic clutch pump body based on friction welding

2020 ◽  
Vol 316 ◽  
pp. 02001
Author(s):  
Jing Sheng ◽  
Aamir Sohail ◽  
Mengguang Wang ◽  
Zhimin Wang
Keyword(s):  
High Temperature ◽  
Structural Design ◽  
Friction Welding ◽  
Room Temperature ◽  
Welding Process ◽  
Structure Type ◽  
Mechanical Analysis ◽  
Analysis And Design ◽  
Technical Requirements ◽  
Design Requirements

In order to realize the need for lightweight automobiles through replacing steel with plastics, the research and development of the plastic clutch pump body based on the friction welding was carried out. For the clutch pump body connected by friction welding process between the upper pump body and the lower pump body, the technical requirements of pressure 14 MPa and durability (high temperature 7.0 × 104 times, room temperature 7.0 × 105) are required. The structure type of the upper and lower pump bodies of the end face welding type was proposed. Through the static analysis of the pump body and weld and the mechanical analysis under the working condition, the structure of the clutch pump body (upper and lower pump body) was determined. According to the established welding process, the pressure of the clutch pump body is more than 15 MPa, and the number of high-temperature durable circulation and the number of room temperature durable circulation also reached 7.2×104 and 7.3×105 times respectively. The results show that the structural design of a clutch pump body meets the design requirements.

scholarly journals CubeSat Development for Lightning Flashes Detection: RaioSat Project

2020 ◽  
pp. 80-93
Author(s):  
Antonio Cassiano Julio Filho ◽  
Auro Tikami ◽  
Elaine de Souza Ferreira de Paula ◽  
Jhonathan Murcia Piñeros ◽  
George Favale Fernandes ◽  
...  
Keyword(s):  
Preliminary Analysis ◽  
Short Range ◽  
Numerical Models ◽  
Human Action ◽  
Severe Weather ◽  
Preliminary Design ◽  
The World ◽  
Prediction Techniques ◽  
Operational Modes ◽  
Existing Data

Annually, severe weather phenomena are responsible for tens of thousands of deaths and tens of billions of dollars of damage around the world. In Brazil, unlike other hydrometeorological events, severe atmospheric events are random and, therefore, do not have a sociospatial pattern. Because of that, there is a significant motivation to improve the prediction techniques for this kind of events, using high resolution numerical models. A large amount of high-quality observational data is required, including lightning data in a very short-range. In addition, the detection of lightning flashes produced by storms is important for a wide variety of applications and in some areas of scientific research, which include the understanding of the human action on the climate and how the climate change can affect the behavior of storms in long range. One method to monitor the lightning flashes is the implementation of sensors in satellites to obtain data. In this sense, the objective of the RaioSat project is to develop national technology for detecting lightning flashes from the space, in order to complement the existing data from the ground detection network, BrasilDAT. The main objective of this article is to present a methodology for the development of the RaioSat mission including some parts of the preliminary design and operational modes. Additionally, the article describes the expected results and the continuity of the project and a preliminary analysis of a constellation for future projects.

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