Simulation Based Acquisition: A New Approach

1998 ◽  
Author(s):  
Michael V. Johnson ◽  
Mark F. McKeon ◽  
Terence R. Szanto
Keyword(s):  
New Approach ◽  
Simulation Based

scholarly journals Optimizing Mastery Learning Environments: A New Approach to Deliberate Practice for Simulation-based Learning

2018 ◽  
Vol 2 (2) ◽  
pp. 77-81 ◽  
Author(s):  
Julie Rice ◽  
Rodney Omron ◽  
Hugh Calkins
Keyword(s):  
Learning Environments ◽  
Mastery Learning ◽  
Deliberate Practice ◽  
New Approach ◽  
Simulation Based

A New Approach for a Simulation-Based Prediction of Torsional Chatter in Deep Hole Drilling With Extra-Long Twist Drills

2013 ◽  
Author(s):  
E. Abele ◽  
D. Schäfer
Keyword(s):  
General Structure ◽  
Cutting Parameters ◽  
Torsional Stiffness ◽  
Hole Drilling ◽  
New Approach ◽  
Process Dynamics ◽  
Chatter Vibrations ◽  
Simulation Based ◽  
High Level ◽  
Twist Drills

Numerous investigations work on torsional chatter vibrations in drilling. Particularly in terms of productivity, torsional chatter is detrimental because of a reduction of tool life and an undesirably high level of noise emissions due to the increased process dynamics. To achieve a deeper understanding of the process dynamics, a new numerical simulation model was developed to predict torsional chatter for extra-long twist drills. It is used to determine the influence of numerous factors such as cutting parameters, drill torsional stiffness, rotary moment of inertia and torsional-axial coupling. In this paper, the general structure of the model and the tool model is presented.

Risk Evaluation by Human Trajectory Simulation Based on Real Data

2011 ◽  
Vol 15 (2) ◽  
pp. 220-225
Author(s):  
Kiyoshi Izumi ◽  
◽  
Yoshifumi Nishida ◽  
Yoichi Motomura ◽  
Keyword(s):  
Risk Evaluation ◽  
Real Data ◽  
Public Spaces ◽  
Layout Design ◽  
Sensor Data ◽  
Agent Based Simulation ◽  
New Approach ◽  
Agent Based ◽  
Trajectory Simulation ◽  
Simulation Based

This paper proposes a new approach integrating the modeling of moving persons from sensor data and agent-based simulation for indoor layout design viewed from preventing children’s accidents. Our model focuses on interaction between indoor objects and children to estimate the risk of indoor accidents. We discuss the agent-based simulation of multiple persons moving in public spaces and its application to evaluating information presentation for guidance.

Simulationsbasierte PPS-Optimierung für Instandhaltungsunternehmen*/Simulation-based optimization of production planning and control in maintenance companies

2015 ◽  
Vol 105 (04) ◽  
pp. 215-219
Author(s):  
B. Denkena ◽  
A. Georgiadis
Keyword(s):  
Production Planning ◽  
Spare Parts ◽  
Production Planning And Control ◽  
Wird Eine ◽  
New Approach ◽  
Complex Products ◽  
Planning And Control ◽  
Short Notice ◽  
Simulation Based ◽  
And Control

Die Produktionsplanung und -steuerung (PPS) steht bei der Instandhaltung komplexer Produkte vor der Herausforderung, mittelfristig Entscheidungen ohne detaillierte Kenntnis des Bauteilzustandes treffen zu müssen. Je nach Bauteildiagnose sind dann kurzfristig die Fertigungskapazitäten und Lagerbestände anzupassen. Die getroffenen Entscheidungen beeinflussen die Wirtschaftlichkeit des gesamten Instandhaltungsprozesses maßgeblich. Im Rahmen des Fachbeitrags wird eine simulationsbasierte Methode vorgestellt, um die PPS in der Instandhaltung mittels Ersatzteildisposition und Reihenfolgebildung zu optimieren. Dabei werden die Entwicklung und Ergebnisse des Ansatzes zur Ersatzteildisposition beschrieben.   Production planning and control (PPC) systems concerned with maintaining complex products are faced with the challenge of making decisions without knowing the product’s condition. After the diagnosis, the production and warehouse capacities are adapted at short notice. This article presents a simulation-based method for optimizing PPC in maintenance companies. It focuses on the development and the results of a new approach for the management of spare parts.

scholarly journals Simulation-based learning combined with debriefing: trainers satisfaction with a new approach to training the trainers to teach neonatal resuscitation

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Harish J Amin ◽  
Khalid Aziz ◽  
Louis P Halamek ◽  
Tanya N Beran
Keyword(s):  
Neonatal Resuscitation ◽  
New Approach ◽  
Simulation Based

Modeling and Simulation of Large Erecting System Based on Virtual Prototyping

2012 ◽  
Vol 479-481 ◽  
pp. 2462-2465 ◽  
Author(s):  
Yong Bao Feng ◽  
Chang Lin Ma ◽  
Xiao Song Guo ◽  
Chuan Qiang Yu
Keyword(s):  
Modeling And Simulation ◽  
Virtual Prototyping ◽  
Analysis Model ◽  
New Approach ◽  
Rigid Body Dynamic ◽  
Collaborative Simulation ◽  
Proposed Model ◽  
Simulation Based ◽  
Adams Software ◽  
Body Dynamic

The virtual prototyping model of large erecting system is established by means of ADAMS and AMESim software. Based on the theory of multi-rigid body dynamic, the topology description of erecting system is given. Dynamics analysis model of large erecting system is built in ADAMS software, and mechanics character is given through the analysis of the erecting system. The simulation model of hydraulic system is built using AMESim software. Collaborative simulation based on the interfaces of ADAMS and AMESim is discussed, and the dynamic characteristic of the erecting system is simulated based on the interfaces of ADAMS and AMESim. Some simulation results are given to demonstrate the validity of the proposed model. This method provides a new approach for the modeling and simulation of electro-mechanical systems.

scholarly journals Y-profile evidence: close paternal relatives and mixtures

2018 ◽  
Author(s):  
Mikkel M Andersen ◽  
David J Balding
Keyword(s):  
Mutation Rates ◽  
Weight Of Evidence ◽  
Allelic Ladder ◽  
New Approach ◽  
Additional Information ◽  
Simulation Based ◽  
Background Data ◽  
Male Line ◽  
Profile Changes ◽  
Number Of Males

AbstractWe recently introduced a new approach to the evaluation of weight of evidence (WoE) for Y-chromosome profiles. Rather than attempting to calculate match probabilities, which is particularly problematic for modern Y-profiles with high mutation rates, we proposed using simulation to describe the distribution of the number of males in the population with a matching Y-profile, both the unconditional distribution and conditional on a database frequency of the profile. Here we further validate the new approach by showing that our results are robust to assumptions about the allelic ladder and the founder haplotypes, and we extend the approach in two important directions. Firstly, forensic databases are not the only source of background data relevant to the evaluation of Y-profile evidence: in many cases the Y-profiles of one or more relatives of the accused are also available. To date it has been unclear how to use this additional information, but in our simulation-based approach its effect is readily incorporated. We describe this approach and illustrate how the WoE that a man was the source of an observed Y-profile changes when the Y-profiles of some of his male-line relatives are also available. Secondly, we extend our new approach to mixtures of Y-profiles from two or more males. Surprisingly, our simulation-based approach reveals that observing a 2-male mixture that includes an alleged contributor’s profile is almost as strong evidence as observing a matching single-contributor evidence sample, and even 3-male and 4-male mixtures are only slightly weaker.

Tool Feasibility Analysis for Fixture Assembly Planning

2008 ◽  
Vol 130 (4) ◽  
Author(s):  
Xiumei Kang ◽  
Qingjin Peng
Keyword(s):  
Setup Time ◽  
Critical Issue ◽  
Feasibility Analysis ◽  
Assembly Planning ◽  
Fixture Design ◽  
New Approach ◽  
Simulation Based ◽  
Design Systems ◽  
Tool Motion ◽  
Assembly Tool

Tool feasibility is a critical issue for generating a complete fixture assembly plan to reduce production setup time. Previous fixture design systems rarely consider the assembly tool feasibility. Current methods of assembly tool feasibility analysis mainly depend on simulation-based or user-interactive approaches, which rely on users’ judgment. This paper presents a new approach to tool feasibility analysis for fixture assembly planning. The fixture workspace around a tool is represented by a newly defined global accessibility sphere with depth of a truncated half-line. The assembly tools are modeled as five articulated parts to fully describe the tool characteristics. Tool feasibility analysis is executed to verify assembly tools’ feasibility applied on a fastener. In particular, both tool motion and tool placement constraints during tool applications are integrated into the tool geometric reasoning. The example demonstrates the fast computing speed and intuitive simulation of several assembly tools applied in fixture assembly.

Modeling of the Particles Pinning Effect on Grain Growth

2011 ◽  
Vol 702-703 ◽  
pp. 599-602
Author(s):  
N. Maazi ◽  
R. Penelle
Keyword(s):  
Grain Boundaries ◽  
Grain Growth ◽  
Simulation Models ◽  
New Approach ◽  
Growth Simulation ◽  
Preferential Interaction ◽  
Pinning Effect ◽  
Classical Simulation ◽  
Simulation Based ◽  
Curvature Driven

In silicon steels, interaction of grain boundaries with particles occurs in a selective way. Currently, it is very difficult to include this preferential interaction directly in the classical simulation models. A new approach of grain growth simulation based on the concept of curvature-driven migration of the grain boundaries in the presence of particles has been used to study the abnormal grain growth (AGG) in Fe-3%Si alloy.

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