Modeling and simulation for product design process

Abstract

Descriptive simulation finds the performance measure of a system, given a particular value for the input parameters. Inverse simulation reverses this and attempts to find the controllable input parameters required to achieve a particular performance measure. This paper proposes using a ‘stochastic approximation’ to estimate the necessary design parameters within a range of desired accuracy. The proposed solution algorithm is based on Newton’s methods using a single-run simulation to minimize a loss function that measures the deviation from a target value. The properties of the solution algorithm and the validity of the estimates are examined by applying them to a reliability system with a known analytical solution.

A 3D analysis of geometrical factors and their influence on air flow around a satellite dish

“…A 3D CAD model of the satellite antenna is formed by the method of reverse engineering, which is made opposing air in the conditions of use of the technical system [4][5]. The simulation model is based on the factor of the speed of the airflow and the data are valid for the area in which the device is used.…”

“…The satellite antena in this study was designed in SolidWorks 2011 software tool ( Figure 4) and passed through a simulation tool flow SolidFlow (located in the professional package SolidWorks 2011) [4]. The results obtained by the simulation were compared with the results of tests of the real models of the satellite antenna that is made at the Aeronautical Technical Institute in Belgrade.…”

Research and Application of the Simulation Method for Product Development Process Based on System Dynamics

“…Analyzing the dynamic characteristics of the product development process is crucial for accurate prediction and control. Simulation methods are effective for solving complex dynamic problems, such as Petri nets [18] and Monte Carlo simulations [19]. These methods evaluate the performance (cost, lead time, risk, etc.)…”

Pathogenic Bacteria in Lake Victoria Shore Water at Kasenyi Landing Site in Entebbe Municipality, Uganda: A Cross-Sectional Pilot Survey on Occurrence Profiles and Associated Factors.

“…The sample size for this particular survey was determined based on the central limit theorem (Arsham, 2005) which considers an amount of, n > 30, to be a sufficiently large sample to represent a large population. Here; "n" represents the sample amount obtained at a particular moment in time.…”