Collaborative Engineering and Design Leads to Optimized MPD Land Rig Concept

Abstract This paper presents a land rig concept optimized for managed pressure drilling (MPD) service deployment, achieved through close partnership between an MPD technology provider and a drilling contractor. An initial scoping phase identified high-level requirements based on the Operator's planned drilling plans. After the initial concept selection engineering teams continued to optimize MPD rig integration. The engineering teams collaborated closely on optimal placement and configuration for maximum operational efficiency. The system was designed to facilitate fast rig moves and walking within each pad with minimum disruption to other processes. Safety and handling issues were identified in the detailed design stage and allowed optimizing field deployment and operability. The equipment was paired with an MPD control system that was fully integrated in the rigs’ drilling automation platform, enabling consistent, reliable, and repeatable performance. This paper will outline the concept selection process, the design and deployment phase, and further optimization that was implemented after initial learnings.

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Analytical Hierarchy Process for Design Selection of Micro Hot-Marking Tool

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.699.897 ◽

2014 ◽

Vol 699 ◽

pp. 897-902

Author(s):

Sivarao ◽

Mohd Fairuz Dimin ◽

N.M.F. Faris ◽

A. Hambali ◽

Sivakumar Dhar Malingam ◽

...

Keyword(s):

Analytical Hierarchy Process ◽

Selection Process ◽

Design Concept ◽

Design Stage ◽

Cnc Milling ◽

Concept Selection ◽

Cnc Milling Machine ◽

Initial Stage ◽

Design Selection ◽

Hierarchy Process

Veracious concept selection process is crucial in design engineering where, a concept with concise description will fulfill customers’ requirements. Failure in concept selection can lead to inaccurate design which will result in unnecessary process repetition of the initial stage. One of the best tools that can be used in determining the best design concept is Analytical Hierarchy Process (AHP). Micro Hot-Marking Tool (HMT) is a super-finished tool with micro tip which is to be used for alphabetical marking process using CNC milling machine. In this research, AHP was successfully employed in selecting design concept for HMT. Four significant and robust concepts were analyzed, namely C1, C2, C3 & C4. Concept 2 (C2) has been chosen as the best concept with the highest score of 27% among all the evaluated concepts which will be taken into next design stage.

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Developing a BIM-Based MUVR Treadmill System for Architectural Design Review and Collaboration

Applied Sciences ◽

10.3390/app11156881 ◽

2021 ◽

Vol 11 (15) ◽

pp. 6881

Author(s):

Calvin Chung Wai Keung ◽

Jung In Kim ◽

Qiao Min Ong

Keyword(s):

Architectural Design ◽

Human Locomotion ◽

Virtual Space ◽

Design Stage ◽

Design Review ◽

Team Members ◽

Physical Constraints ◽

Simulated Environment ◽

Set Up ◽

High Level

Virtual reality (VR) is quickly becoming the medium of choice for various architecture, engineering, and construction applications, such as design visualization, construction planning, and safety training. In particular, this technology offers an immersive experience to enhance the way architects review their design with team members. Traditionally, VR has used a desktop PC or workstation setup inside a room, yielding the risk of two users bump into each other while using multiuser VR (MUVR) applications. MUVR offers shared experiences that disrupt the conventional single-user VR setup, where multiple users can communicate and interact in the same virtual space, providing more realistic scenarios for architects in the design stage. However, this shared virtual environment introduces challenges regarding limited human locomotion and interactions, due to physical constraints of normal room spaces. This study thus presented a system framework that integrates MUVR applications into omnidirectional treadmills. The treadmills allow users an immersive walking experience in the simulated environment, without space constraints or hurt potentialities. A prototype was set up and tested in several scenarios by practitioners and students. The validated MUVR treadmill system aims to promote high-level immersion in architectural design review and collaboration.

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Favoring Complexity: A Mixed Methods Exploration of Factors That Influence Concept Selection When Designing for Additive Manufacturing

Journal of Mechanical Design ◽

10.1115/1.4050303 ◽

2021 ◽

Vol 143 (10) ◽

Author(s):

Rohan Prabhu ◽

Rainmar L. Leguarda ◽

Scarlett R. Miller ◽

Timothy W. Simpson ◽

Nicholas A. Meisel

Keyword(s):

Additive Manufacturing ◽

Selection Process ◽

Solution Space ◽

Idea Generation ◽

Concept Selection ◽

Stage Design ◽

Four Dimensions ◽

Build Time ◽

Traditional Manufacturing ◽

Selection Stage

Abstract The capabilities of additive manufacturing (AM) open up designers’ solution space and enable them to build designs previously impossible through traditional manufacturing (TM). To leverage this design freedom, designers must emphasize opportunistic design for AM (DfAM), i.e., design techniques that leverage AM capabilities. Additionally, designers must also emphasize restrictive DfAM, i.e., design considerations that account for AM limitations, to ensure that their designs can be successfully built. Therefore, designers must adopt a “dual” design mindset—emphasizing both, opportunistic and restrictive DfAM—when designing for AM. However, to leverage AM capabilities, designers must not only generate creative ideas for AM but also select these creative ideas during the concept selection stage. Design educators must specifically emphasize selecting creative ideas in DfAM, as ideas perceived as infeasible through the traditional design for manufacturing lens may now be feasible with AM. This emphasis could prevent creative but feasible ideas from being discarded due to their perceived infeasibility. While several studies have discussed the role of DfAM in encouraging creative idea generation, there is a need to investigate concept selection in DfAM. In this paper, we investigated the effects of four variations in DfAM education: (1) restrictive, (2) opportunistic, (3) restrictive followed by opportunistic (R-O), and (4) opportunistic followed by restrictive (O-R), on students’ concept selection process. We compared the creativity of the concepts generated by students to the creativity of the concepts they selected. The creativity of designs was measured on four dimensions: (1) uniqueness, (2) usefulness, (3) technical goodness, and (4) overall creativity. We also performed qualitative analyses to gain insight into the rationale provided by students when making their design decisions. From the results, we see that only teams from the restrictive and dual O-R groups selected ideas of higher uniqueness and overall creativity. In contrast, teams from the dual R-O DfAM group selected ideas of lower uniqueness compared with the mean uniqueness of ideas generated. Finally, we see that students trained in opportunistic DfAM emphasized minimizing build material the most, whereas those trained only in restrictive DfAM emphasized minimizing build time. These results highlight the need for DfAM education to encourage AM designers to not just generate creative ideas but also have the courage to select them for the next stage of design.

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How Concept Selection Tools Impact the Development of Creative Ideas in Engineering Design Education

Journal of Mechanical Design ◽

10.1115/1.4039338 ◽

2018 ◽

Vol 140 (5) ◽

Cited By ~ 7

Author(s):

Xuan Zheng ◽

Sarah C. Ritter ◽

Scarlett R. Miller

Keyword(s):

Decision Making ◽

Engineering Design ◽

Design Education ◽

Cognitive Biases ◽

Design Stage ◽

Concept Selection ◽

Engineering Design Education ◽

Student Teams ◽

The Impact ◽

Selection Tools

Concept selection tools have been heavily integrated into engineering design education in an effort to reduce the risks and uncertainties of early-phase design ideas and aid students in the decision-making process. However, little research has examined the utility of these tools in promoting creative ideas or their impact on student team decision making throughout the conceptual design process. To fill this research gap, the current study was designed to compare the impact of two concept selection tools, the concept selection matrix (CSM) and the tool for assessing semantic creativity (TASC) on the average quality (AQL) and average novelty (ANV) of ideas selected by student teams at several decision points throughout an 8-week project. The results of the study showed that the AQL increased significantly in the detailed design stage, while the ANV did not change. However, this change in idea quality was not significantly impacted by the concept selection tool used, suggesting other factors may impact student decision making and the development of creative ideas. Finally, student teams were found to select ideas ranked highly in concept selection tools only when these ideas met their expectations, indicating that cognitive biases may be significantly impeding decision making.

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Favoring Complexity: A Mixed Methods Exploration of Factors That Influence Concept Selection in Design for Additive Manufacturing

Volume 11A: 46th Design Automation Conference (DAC) ◽

10.1115/detc2020-22447 ◽

2020 ◽

Author(s):

Rohan Prabhu ◽

Rainmar L. Leguarda ◽

Scarlett R. Miller ◽

Timothy W. Simpson ◽

Nicholas A. Meisel

Keyword(s):

Additive Manufacturing ◽

Selection Process ◽

Solution Space ◽

Idea Generation ◽

Concept Selection ◽

Educational Groups ◽

Early Design Stages ◽

Traditional Manufacturing ◽

Design For Am

Abstract The capabilities of additive manufacturing (AM) open up designers’ solution space and enable them to build designs previously impossible through traditional manufacturing. To leverage AM, designers must not only generate creative ideas, but also propagate these ideas without discarding them in the early design stages. This emphasis on selecting creative ideas is particularly important in design for AM (DfAM), as ideas perceived as infeasible through the traditional design for manufacturing lens could now be feasible with AM. Several studies have discussed the role of DfAM in encouraging creative idea generation; however, there is a need to understand concept selection in DfAM. In this paper, we investigated the effect of two variations in DfAM education: 1) restrictive DfAM and 2) dual DfAM (opportunistic and restrictive) on students’ concept selection process. Specifically, we compared the creativity of the concepts generated by the students to the creativity of the concepts selected by them. Further, we performed qualitative analyses to explore the rationale provided by the students in making these design decisions. From the results, we see that teams from both educational groups select ideas of greater usefulness; however, only teams from the restrictive DfAM group select ideas of higher uniqueness and overall creativity. Further, we see that introducing students to opportunistic DfAM increases their emphasis on the complexity of designs when evaluating and selecting them. These results highlight the need for DfAM education to encourage AM designers to not just generate but also select creative ideas.

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Centralization of Canada’s Spent Nuclear Fuel

Volume 6: Beyond Design Basis Events; Student Paper Competition ◽

10.1115/icone21-16511 ◽

2013 ◽

Author(s):

Krista Nicholson ◽

John McDonald ◽

Shona Draper ◽

Brian M. Ikeda ◽

Igor Pioro

Keyword(s):

Nuclear Fuel ◽

Site Selection ◽

Nuclear Power ◽

Power Plants ◽

Spent Nuclear Fuel ◽

Selection Process ◽

Spent Fuel ◽

Geologic Repository ◽

Candu Reactors ◽

High Level

Currently in Canada, spent fuel produced from Nuclear Power Plants (NPPs) is in the interim storage all across the country. It is Canada’s long-term strategy to have a national geologic repository for the disposal of spent nuclear fuel for CANada Deuterium Uranium (CANDU) reactors. The initial problem is to identify a means to centralize Canada’s spent nuclear fuel. The objective of this paper is to present a solution for the transportation issues that surround centralizing the waste. This paper reviews three major components of managing and the transporting of high-level nuclear waste: 1) site selection, 2) containment and 3) the proposed transportation method. The site has been selected based upon several factors including proximity to railways and highways. These factors play an important role in the site-selection process since the location must be accessible and ideally to be far from communities. For the containment of the spent fuel during transportation, a copper-shell container with a steel structural infrastructure was selected based on good thermal, structural, and corrosion resistance properties has been designed. Rail has been selected as the method of transporting the container due to both the potential to accommodate several containers at once and the extensive railway system in Canada.

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Intelligent Approach to Floor Vibration Control

Dynamic Systems and Control, Parts A and B ◽

10.1115/imece2005-80037 ◽

2005 ◽

Author(s):

Janice L. Martell ◽

Arya Ebrahimpour ◽

Marco P. Schoen

Keyword(s):

Cantilever Beam ◽

Human Perception ◽

Shopping Mall ◽

Optimal Placement ◽

Sensors And Actuators ◽

Control Approach ◽

Novel Approach ◽

Floor Vibration ◽

High Level ◽

Floor System

Genetic Algorithms (GAs) have been used to solve a multiple of engineering problems with the civil engineering applications ranging from optimal placement of sensors and actuators on structures to pipeline layouts. GAs are especially useful in finding optimal solutions to problems that have many parameters with complex search spaces and a high level of interaction among the describing parameters. The novel experimental control approach presented in this paper uses a GA and a piezoelectric actuator to control the vibration of an aluminum cantilever beam. This set-up is based on a floor vibration problem, where the human perception of vibration dictates the sensitivities in the cost function of the GA. Lightweight floors can be excited by occupant activities such as walking, jumping and dancing. Humans are especially sensitive to vibrations in the range of 4 to 8 Hz. The occupancy of a floor system — whether the floor is used in an office, a shopping mall, or a ballroom — determines the degree to which humans are annoyed by the vibration. In this paper, the GA based control limits the peak acceleration within a predefined bandwidth. Since the cantilever beam has a higher natural frequency than a lightweight floor system a bandwidth of approximately 1.6–15.9 Hz (10–100 rad/s) is used as the frequency range to control. The control to be designed will be a genetic algorithm-robust controller. The analytical results indicate that this novel approach works well.

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1.2 Computers and Their Potential: Software

BSAP Occasional Publication ◽

10.1017/s0263967x00003657 ◽

1981 ◽

Vol 5 ◽

pp. 5-8

Author(s):

Pamela A. Geisler ◽

J. France

Keyword(s):

High Reliability ◽

Computer Hardware ◽

Design Stage ◽

Final Phase ◽

Implementation Phase ◽

Storage Media ◽

Systems Software ◽

And Performance ◽

High Level

At the present time, with the high reliability and performance of computer hardware, computer systems applied in any field must be judged more by the quality of the software provided. Thus it is highly relevant in an investigation of the use of computers in a field such as animal production, to concentrate on aspects of the software.Software provides the computer with the ability to obey instructions and to do as the user wishes. However, before arriving at these ‘machine instructions’ a number of steps have to be covered. First, it is essential to design the software — that is, to establish the requirements to be achieved on the computer. This design stage is followed by the implementation phase, in which the requirements as stated in English are transformed into such instructions as the machine can read and obey. The final phase is testing, in which it must be determined whether the requirements have been met, and to modify the design and iterate until the performance is satisfactory.Software in general can be divided into three classes — systems, utility and applications software. The systems software drives the machine and its associated peripherals such as a VDU and printer. The systems software also includes a file system for organization of the data on the relevant storage media (floppy disks, cartridges, magnetic tape). Also considered part of the systems software are the assembler, interpreters and compilers for high level languages such as BASIC and FORTRAN and for programming aids such as DEBUGGERS. Systems software is normally supplied with the computer and needs to be evaluated along with the hardware by any prospective purchaser of a computer system.

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Study on a Decision Making Methodology with Uncertainties in the Selection Process of Preliminary Investigation Areas

MRS Proceedings ◽

10.1557/proc-807-21 ◽

2003 ◽

Vol 807 ◽

Author(s):

Hiroyuki Tsuchi ◽

Toshihiro Seo ◽

Richard Metcalfe ◽

Kenji Kawano ◽

Hiroyasu Takase ◽

...

Keyword(s):

Decision Making ◽

Selection Process ◽

Preliminary Investigation ◽

Process Models ◽

Evidential Support ◽

High Level ◽

Hlw Repository ◽

Level Process ◽

Specific Evaluation ◽

Selection Of

ABSTRACTThe selection of Preliminary Investigation Areas (PIAs) to be considered in the siting procedure for a Japanese High Level Radioactive Waste (HLW) repository, will require Site-specific Evaluation Factors (SSEF) to be considered. Evaluation of these factors requires a methodology for taking into account various kinds of uncertainties in varied types of literature data. The study described here evaluated the application of Evidential Support Logic (ESL) for this purpose. The approach involves constructing hierarchical process models. Uncertainties are then propagated from the lowest processes, corresponding to data or information, through intermediate processes, to some top level process of interest, such as “assessing the existence of an active fault”. To evaluate the usefulness of ESL a hypothetical site was assessed. The results demonstrate the value of the approach to support decision-making in the selection of PIAs.

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State of the scientific and technical knowledge about limiting temperatures in the Repository Site Selection process of Germany with simultaneous consideration to Europe and other European repository concepts

10.5194/egusphere-egu2020-20302 ◽

2020 ◽

Author(s):

Ute Maurer-Rurack ◽

Axel Liebscher ◽

Fabien Magri

Keyword(s):

Outer Surface ◽

Site Selection ◽

Selection Process ◽

Temperature Limit ◽

Crystalline Rock ◽

Technical Knowledge ◽

Federal Republic Of Germany ◽

Regulatory Frameworks ◽

High Level ◽

Limiting Temperatures

The Federal Republic of Germany has decided to dispose its high-level radioactive waste in deep geological formations. Three types of host rock are considered: rock salt, clay rock and crystalline rock. The Site Selection Act (StandAG1), which came into effect on the 16th of May 2017, defines the successive steps of the repository siting process, which has to ensure the best possible safety conditions for a period of one million years. Based on precaution considerations, the StandAG (&#167;27 (4) StandAG) sets a preliminary temperature limit of 100&#176;C at the outer surface of a repository container for the preliminary safety assessment.This contribution provides an overview about the state of the scientific and technical knowledge on the limiting temperatures in the repository site selection process of Germany. It also illustrates the different treatments of the definition of temperature limits within other European siting processes. The findings highlight that, in Europe, the proposed criteria which consider temperature at the outer surface of a repository container get more and more into focus of research and discussion especially for the three different types of host rocks.After presenting the national regulatory frameworks, this contribution summarizes how the European countries address the different temperature related issues for their site selection, their repository concepts and how in turn these all can influence the German safety case strategy for the German site selection. Not at least, links to site selection criteria in other countries (e.g. USA, Japan, Russia) are provided.Reference1&#160; StandAG: Standortauswahlgesetz vom 5. Mai 2017 (BGBl. I S. 1074), das zuletzt durch Artikel 2 Absatz 16 des Gesetzes vom 20. Juli 2017 (BGBl. I S. 2808) ge&#228;ndert worden ist.

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