scholarly journals Design Method of Offsetting the Orbiting Scroll and Its Influence on the Self-Rotation Characteristics of the Orbiting Scroll

2019 ◽  
Vol 604 ◽  
pp. 012081
Author(s):  
Shuai Zhang ◽  
Jianhua Wu
Keyword(s):  
Design Method ◽  
The Self

Improved Analysis of Unstable Bouncing Vibration and Stabilizing Design of Flying Slider in Near-Contact Regime

2005 ◽  
Author(s):  
Kyosuke Ono ◽  
Masami Yamane
Keyword(s):  
Parametric Study ◽  
Adhesion Force ◽  
Design Method ◽  
Contact Stiffness ◽  
Frictional Coefficient ◽  
Disk Surface ◽  
The Self ◽  
Air Bearing ◽  
Excited Vibration ◽  
Bearing Stiffness

We proposed a design method of a flying head slider that can suppress the bouncing vibration in a near-contact regime, based on parametric study using an improved slider and contact models. At first, we numerically calculated the characteristics of contact force and adhesive force between air bearing pad and disk surface under the current small roughness conditions and found that the contact characteristics can be modeled by constant contact stiffness, a constant adhesion force and the separations of beginning and end of contact. Next we numerically computed the slider dynamics of a 2-DOF slider model by using these contact characteristics and nonlinear air-bearing stiffness. As a result, we could get the self-excited bouncing vibration whose general characteristics are more similar to the experimented results compared to our previous study. Parametric study shows that the frictional coefficient, attractive force and contact stiffness should be decreased and front and rear air-bearing stiffness and ratio of rear to front air-bearing stiffness should be increased in order to realize a stable flying slider in a smallest possible spacing. Moreover, we elucidated the effect of micro-waviness on the self-excited vibration of the slider.

Design Method of Self-Loading Device of the Side-Crane Used for Container

2012 ◽  
Vol 466-467 ◽  
pp. 951-955
Author(s):  
Jun Qing Zhan ◽  
Xiao Mei Feng ◽  
Li Shun Li ◽  
Xiang De Meng
Keyword(s):  
Mathematical Model ◽  
Structural Design ◽  
Design Method ◽  
The Self ◽  
Design Calculation ◽  
Force Analysis ◽  
Loading Device ◽  
Calculation Results ◽  
The Mathematical Model ◽  
Flat Ground

The self-loading device used for side-crane is put forward. Its structure is presented. Based on the force analysis when the side-crane works at flat ground, the mathematical model is established when the crane working at uneven ground. And the design calculation is performed. The self-loading device’s optimal design is accomplished. Based on the above calculation results, the self-loading prototype is manufactured. And the design method can be adopted to the similar equipment’s structural design.

scholarly journals Data-Centric Architecture for Self-Driving Laboratories with Autonomous Discovery of New Nanomaterials

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Maria A. Butakova ◽  
Andrey V. Chernov ◽  
Oleg O. Kartashov ◽  
Alexander V. Soldatov
Keyword(s):  
Design Method ◽  
Functional Materials ◽  
Research Strategy ◽  
The Self ◽  
Multilevel Data ◽  
Functional Nanomaterials ◽  
Driven Systems ◽  
The Core ◽  
Autonomous Discovery ◽  
Fusion Approach

Artificial intelligence (AI) approaches continue to spread in almost every research and technology branch. However, a simple adaptation of AI methods and algorithms successfully exploited in one area to another field may face unexpected problems. Accelerating the discovery of new functional materials in chemical self-driving laboratories has an essential dependence on previous experimenters’ experience. Self-driving laboratories help automate and intellectualize processes involved in discovering nanomaterials with required parameters that are difficult to transfer to AI-driven systems straightforwardly. It is not easy to find a suitable design method for self-driving laboratory implementation. In this case, the most appropriate way to implement is by creating and customizing a specific adaptive digital-centric automated laboratory with a data fusion approach that can reproduce a real experimenter’s behavior. This paper analyzes the workflow of autonomous experimentation in the self-driving laboratory and distinguishes the core structure of such a laboratory, including sensing technologies. We propose a novel data-centric research strategy and multilevel data flow architecture for self-driving laboratories with the autonomous discovery of new functional nanomaterials.

Whole Trajectory Design Optimization of Self-Propelled Artillery Based on Adaptive Genetic Algorithm

2014 ◽  
Vol 971-973 ◽  
pp. 1391-1395
Author(s):  
Fu Qiang Niu ◽  
Cheng Xu ◽  
Xiao Xiao
Keyword(s):  
Genetic Algorithm ◽  
Trajectory Optimization ◽  
Optimization Design ◽  
Design Method ◽  
Structural Parameters ◽  
Engineering Application ◽  
The Self ◽  
Charge Weight ◽  
Adaptive Genetic Algorithm ◽  
Trajectory Design

An optimization design method of whole trajectory for a self-propelled artillery, including interior, exterior and terminal ballistic trajectory, is proposed. The structural parameters of the projectile, ballistic parameters, charge weight and explosive weight are selected as the design variables. The optimization objectives are the largest lethal area, the longest range at 45° and the highest utilization of propellant energy. Constraining the maximum bore pressure, muzzle pressure, packing density and the relative position of propellant burning end, the whole trajectory optimization model of the self-propelled is established. The model is calculated using both genetic algorithm and adaptive genetic algorithm. Optimization results show that the effect and convergence rate of the adaptive genetic algorithm are better than those of the genetic algorithm. The method in this paper play an important role in theory reference and engineering application for the whole trajectory design of the self-propelled artillery.

Design and Experimental Research of Self-Suction Sprinkler Irrigation Jet Pump

2011 ◽  
Author(s):  
Jianrui Liu ◽  
Xiaoke He ◽  
Weidong Shi ◽  
Qiqin Su
Keyword(s):  
Design Method ◽  
Sprinkler Irrigation ◽  
The Self ◽  
National Standard ◽  
Average Weight ◽  
Pump Efficiency ◽  
Jet Pump ◽  
Working Mechanism ◽  
New Type ◽  
And Performance

A new type of self-suction sprinkler irrigation jet pump was presented in this paper. A jetted self-priming set with Venturi Tube was installed in the inlet of the pump, and the self-priming performance was improved. The valve of the jetted self-priming set shut off when the pump self-priming was finished and the pump efficiency was increased. The design method, working mechanism and structure of the pump were introduced. The experiment results of the jet aerator of the pump, the self-shutoff of the reflowing valve and performance were obtained. The results showed that the self-priming performance of the pump was principal concern with the size of the jet aerator and the pump efficiency was increased as the reflowing valve automatically closing. The efficiency of the pump is higher by 5.3%∼8.9% and the time of the self-priming is shorter by 25∼73s and the average weight is lighter by 16% than the national standard, which indicates that comprehensive technical index is on the top of international level.

Design of multi-bolted joints to prevent self-loosening failure

2016 ◽  
Vol 230 (15) ◽  
pp. 2564-2578 ◽  
Author(s):  
G Dinger
Keyword(s):  
Automotive Industry ◽  
Development Process ◽  
Design Method ◽  
The Self ◽  
Bolted Joints ◽  
Combined Loading ◽  
Experimental Investigations ◽  
Transverse Loading ◽  
Periodic Load ◽  
Element Analysis

The rotational self-loosening of bolted joints under cyclic loading is a process, which means a screw rotation against the assembly direction by periodic load cycles. Thus, the preload balance is released and the clamping function is no longer maintained. The effect is well known, but prevention is usually performed experimentally only after occurrence of self-loosening events. The paper gives a systematic presentation of the dimensioning and the possibility to consider self-loosening in the development process. The procedure for self-loosening dimensioning and the influences are demonstrated with safety-relevant multi-bolted connections from the automotive industry. The aim of this paper is to provide a numerical design method with finite element analysis for detecting and understanding of the self-loosening process at bolted joints. Another focus of the work is to investigate the self-loosening behaviour under combined loading with a superposition of translation and rotation. Combined loading can lead to self-loosening even before reaching the limit of self-loosening for transverse loading. The computational results of the numerical simulation (FEA) are compared with experimental investigations.

Structure Optimum Design Based on Maintenance and Lifting Equipment for Wind Turbine

2014 ◽  
Vol 684 ◽  
pp. 273-278 ◽  
Author(s):  
Jia Sun ◽  
Ke Zhang ◽  
Yu Hou Wu
Keyword(s):  
Wind Turbine ◽  
Design Method ◽  
The Self ◽  
Main Design ◽  
Advantages And Disadvantages ◽  
Mechanics Model ◽  
Wind Turbine Tower ◽  
Solid Works ◽  
The Cost ◽  
Lifting Equipment

To meet the urgent demand of maintenance and lifting equipment for wind turbine, combined with designation demand, two kinds of primary structure of the maintenance and lifting equipment has been proposed, analyzed and compared. By means of the Solid Works software the initial design on the two kind of the machine, the self-climbing crane and the trailed hoisting platform, have been conducted, the static analysis has been performed based on the mechanics model, and the advantages and disadvantages of these methods have been pointed out and compared in the paper. Compared with the self-climbing crane, the mechanical structure of the trailed hoisting platform is simpler, the control system presented more reliable, simple, easier realized etc, and the cost is lower. The self-climbing crane is high-automatic, but the design of crane high in the free degree and high in difficulty, and the climbing force focused on the wind turbine tower is too large. Conclusion The trailed hoisting platform is determined as the main design method to design the maintenance and lifting equipment for wind turbine.

scholarly journals Perancangan Media Komunikasi Visual Pada Museum Uang Sumatera

2020 ◽  
Vol 3 (1) ◽  
pp. 356-369
Author(s):  
Arif Budiman ◽  
PG. Wisnu Wijaya
Keyword(s):  
Graphic Design ◽  
Visual Communication ◽  
Design Method ◽  
Corporate Identity ◽  
The Self ◽  
Brand Identity ◽  
Sign System ◽  
Graphic Information ◽  
History Of ◽  
North Sumatra

The Sumatran Money Museum (MUS) in Medan, North Sumatra is one of the self-managed museums, with a collection of thematic and distinctive artifacts, namely the Sumatran currency! The official currency that was issued after independence in 1947-1949. This is among MUS's strengths. However, the problem that arises is that MUS has not yet maximally arranged aspects of visual communication such as consistency in implementing corporate identity, stationary, and graphic signaling (sign system), including the absence of graphic information (infographic) information on the history of the Sumatran currency. This study provides solutions to problem solving through designing a visual communication media based on identity (brand identity) and prioritizing informationfriendly principles, especially for young millennials. The problem in this study was answered by using the design method by following the stages of the graphic design process from Amy E. Arntson namely Research, Thumbnails; Roughs, Comprehensives and Ready for Press. The solution obtained from this research is to design a corporate identity service. Consists of the logo, stationary, merchandise and graphic information of the museum. As a first step in building the MUS brand identity.

Research on the Design Method of Self-Repairing Digital Integrated Circuit Based on Embryonic Cellular Array

2014 ◽  
Vol 624 ◽  
pp. 401-404
Author(s):  
Duo Zhou
Keyword(s):  
Integrated Circuit ◽  
Biological Process ◽  
Fault Tolerant ◽  
Design Method ◽  
Digital Circuit ◽  
The Self ◽  
Cellular Array ◽  
Look Up Table ◽  
Simulation Results ◽  
Computing Machines

A digital circuit with self-repairing characteristic based on embryonic cellular array, which attempts to draw inspiration from the biological process of ontogeny, to implement novel digital computing machines endowed with better hardware fault-tolerant capabilities is researched in this paper. The Self-repairing Digital Circuit (SDC) consists of the two-dimensional electronic cellular array, the SDC's structure and the self-repairing mechanism are expounded, and the design of the cellular circuit based on LUT (look-up table) is proposed. Then, a multiplication circuit is presented as an example of the application of the SDC, the function and self-repairing ability of the multiplication circuit by SDC are demonstrated by the simulation results.

Self-Adapting Function Principle and Creative Design of BFT Type

2013 ◽  
Vol 397-400 ◽  
pp. 830-832
Author(s):  
Huai Lin Luo ◽  
Ling Yu Zhang ◽  
Quan Yuan
Keyword(s):  
Design Method ◽  
The Self ◽  
Creative Design ◽  
Total Function

The author summed up the total function of the self-adapting system of slow-footed multiple-flexible driving with overloading by making use of the creative design method of function principle, applied the mechanism of self-adapting to creative design this sort equipment of BFT,funded its false, and proposed way of creative design basing on the total functions.This way has super-performance of self-adapting .It has a good foreground

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