ON THE CHARACTERISTICS OF FUNCTIONAL ELEMENTS FOR INNOVATIVE DESK LAMP CONCEPTUAL DESIGN

2017 ◽  
Vol 41 (3) ◽  
pp. 457-467
Author(s):  
Nien-Te Liu ◽  
Chang-Tzuoh Wu ◽  
Jia-Cin Li

Desk lamp designers tend to focus on the structure of lamps and not consider the option of incorporating new, innovative designs. Creative functional elements and innovative illustrations for desk lamps are proposed in this study. The main creative functional elements are lamp shades, bases, hinges, and pipes. There are three connecting types for these main creative functional elements: the assembled type, the composite type, and the integrated type. These principles are applied to create three creative functional elements and three connecting types that are subsequently used to generate three innovative conceptual designs.

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 133
Author(s):  
Tobias Vonderbank ◽  
Katharina Schmitz

Increasing performance in modern hydraulics is achieved by a close investigation of possible enhancements of its components. Prior research has pointed out that electromechanical actuators can form suitable alternatives to hydraulically piloted control systems. Since the requirements at these actuation systems depend on the operating conditions of the system, each actuator can be optimized to the respective hydraulic system. Considering that many different conceptual designs are suitable, the phase of conceptual design plays a decisive role during the design process. Therefore, this paper focuses on the process of developing new conceptual designs for electromechanical valve actuation systems using the method of function structures. Aiming to identify special design features, which need to be considered during the design process of electromechanical actuation systems, an exemplary actuator was designed based on the derived function structure. To highlight the potential of function structures for the development of new electromechanical valve actuation systems, two principal concepts, which allow the reduction of the necessary forces, have been developed by extending the function structure. These concepts have been experimentally investigated to identify their advantages and disadvantages.


Author(s):  
H. Perez-Blanco ◽  
Paul Albright

The Virtual Energy Lab (VEL) is a PC based didactic tool for use in conjunction with courses on technical thermodynamics and thermal system design. The tool can also be used for conceptual design of large-scale systems incorporating cogeneration schemes of varied types. The user can learn how to combine conventional thermal systems in creative ways to enhance exergetic efficiency. In the present work, we describe upgrades to this tool, and we present several examples to show the possibilities of energy cascading. The features of ease of learning, user ability to specify important parameters and ready targeting of conceptual designs were preserved in the updated version.


Author(s):  
Douglas L. Van Bossuyt ◽  
Stephen D. Wall ◽  
Irem Y. Tumer

Complex system conceptual design trade studies traditionally consider risk after a conceptual design has been created. Further, one person is often tasked with collecting risk information and managing it from each subsystem. This paper proposes a method to explicitly consider and trade risk on the same level as other important system-level variables during the creation of conceptual designs in trade studies. The proposed risk trading method advocates putting each subsystem engineer in control of risk for each subsystem. A risk vector is proposed that organizes many different risk metrics for communication between subsystems. A method of coupling risk models to dynamic subsystem models is presented. Several risk visualization techniques are discussed. An example is presented based upon a simplified spacecraft model. The risk trading method discussed offers an approach to more thoroughly consider risk during the creation of conceptual designs in trade studies.


2017 ◽  
Vol 41 (3) ◽  
pp. 489-497
Author(s):  
Nien-Te Liu ◽  
Chang-Tzuoh Wu ◽  
Yung-Chun Lin

The purpose of this paper is to propose a simple and quick process for creating new design concepts for human-powered vehicles. First, the design theme for an innovative bicycle is described. Next, the functional elements of the bicycle are selected according to the contents described in the design theme. Based on the design requirements, various spatial arrangements of the creative functional elements are produced. In the final step, we followed the flowchart of the creative functional elements constructed by this research and demonstrated a case study design.


2021 ◽  
Author(s):  
Deryck Machado Rangel ◽  
Liz Cardim da Rocha Cardoso ◽  
Cláudia Márcia Ribeiro Machado Albernaz

In mechanical engineering, the possibility of developing conceptual designs before building a prototype makes the process faster, more flexible and at a lower cost, enabling various tests, changes and improvements in the initial project. The construction of radio controlled aircraft is interesting for the technological growth of the engineering area, and competitions such as the one promoted by SAE Aerodesign enable the development of multidisciplinary projects involving various skills and students from different courses making them exercise their entrepreneurial skills and acquisition of new knowledge. This work aimed to elaborate a conceptual design of an aircraft based on the requirements defined by the SAE Brazil Aerodesign 2020 competition regulations, as well as its structural and aerodynamic analyses. After preliminary studies of the regulations and results from the winning teams of the last competitions, the parameters were defined and the conceptual project was elaborated and the preliminary structural and aerodynamic analyses were performed. With these results it was possible to define the design of the radio controlled aircraft meeting the requirements of the SAE Brazil Aerodesign competition for regular class, enabling the construction of the prototype and the start of the first competition team at ISECENSA


2018 ◽  
Vol 122 (1252) ◽  
pp. 960-987
Author(s):  
B. Lawrence ◽  
C. R. Theodore ◽  
W. Johnson ◽  
T. Berger

ABSTRACTOver the past decade, NASA, under a succession of rotary-wing programs, has been moving towards coupling multiple discipline analyses to evaluate rotorcraft conceptual designs. Handling qualities is one of the component analyses to be included in such a future Multidisciplinary Analysis and Optimization framework for conceptual design of Vertical Take-Off and Landing (VTOL) aircraft. Similarly, the future vision for the capability of the Concept Design and Assessment Technology Area of the U.S Army Aviation Development Directorate also includes a handling qualities component. SIMPLI-FLYD is a tool jointly developed by NASA and the U.S. Army to perform modelling and analysis for the assessment of the handling qualities of rotorcraft conceptual designs. Illustrative scenarios of a tiltrotor in forward flight and a single-main rotor helicopter at hover are analysed using a combined process of SIMPLI-FLYD integrated with the conceptual design sizing tool NDARC. The effects of variations of input parameters such as horizontal tail and tail rotor geometry were evaluated in the form of margins to fixed- and rotary-wing handling qualities metrics and the computed vehicle empty weight. The handling qualities Design Margins are shown to vary across the flight envelope due to both changing flight dynamics and control characteristics and changing handling qualities specification requirements. The current SIMPLI-FLYD capability, lessons learned from its use and future developments are discussed.


Author(s):  
Masataka Yoshimura ◽  
Kohji Nose

Abstract This paper presents a methodology for generating conceptual designs of structural shapes and functional elements of machine systems from initial conditions having no preconceived information. Firstly, a feasible design region initially containing nothing is defined. The whole feasible region which is uniformly filled up with finite elements having an extremely low rigidity is here assumed to be a region containing nothing. Then, a seed element grows into a whole structural system in the feasible design region by conducting both the creation of external shapes and the growth of the inner structures. Next, the design method is advanced so that a functional element of a rotational joint is also generated with the structural shapes simultaneously. Finally, the proposed conceptual design method is applied to design of industrial robots.


Author(s):  
Lora Oehlberg ◽  
Celeste Roschuni ◽  
Alice Agogino

Designers employ a range of tools to gather, create, explore, sort, and act on user needs and conceptual design information. However, designers work both individually and collaboratively. This research is a descriptive study of technologies employed by designers to individually capture and collaboratively share user needs and conceptual designs. In this paper we examine the range and affordances of tools used by designers, and how they use these tools to share design information. We do this by looking at data gathered in interviews with practicing designers and design researchers, as well as documents produced in undergraduate and graduate-level new product development courses. We gather a wide range of tools from our informants, and analyze them based on sharing semantics and formality. We then introduce a model of sharing as a cycle of capture, reflect and share. Finally, we provide design recommendations for future information tools that support both personal and collaborative user needs and conceptual design information.


Author(s):  
Martin Pache ◽  
Anne Roemer ◽  
Udo Lindemann ◽  
Winfried Hacker

Abstract In this paper a case study on conceptual design in mechanical engineering design is presented. At first, an exemplary sketch from the design process is discussed with regard to the modality and level of abstraction of the elements used in this sketch. The possibility to predefine geometry of components, as well as functional features on different levels of abstraction provides clues for reinterpretation of the sketch. Furthermore a remarkable sequence of sketching is presented, that shows how reinterpretation of a sketch can result in significant changes of the conceptual solution. This may be due to the combination of geometrical and functional elements, that gain meaning within the overall context of the sketch only in combination with the other elements. Therefore recombination by reinterpretation may change this context entirely. The proposed mechanisms could not be verified due to the rareness of their occurrence, still these mechanisms may have a significant impact on a design process. Therefore this paper is supposed to provide hypotheses for further research on this subject.


Sign in / Sign up

Export Citation Format

Share Document