A Global Multidimensional Sensitivity Analysis of Electronic Systems Subjected to Time-Dependent Excitations

1998 ◽  
Vol 120 (4) ◽  
pp. 391-394
Author(s):  
H. A. Jensen ◽  
A. O. Cifuentes
Keyword(s):  
Sensitivity Analysis ◽  
Technical Note ◽  
Previous Method ◽  
Design Parameters ◽  
Electronic Systems ◽  
Analysis Method ◽  
Electronic Components ◽  
One Dimensional ◽  
Sensitivity Analysis Method ◽  
The One

This technical note presents a global sensitivity analysis method for the dynamic response of electronic systems considering several design parameters at the same time. The method is an extension of a previous method presented by the authors for the one-dimensional case (only one design variable at a time was considered subjected to uncertainty). The method is expected to be useful in the design, analysis and qualification of electronic components.

Application of the Adjoint Sensitivity Method to the Analysis of a Supersonic Ejector

1984 ◽  
Vol 106 (4) ◽  
pp. 425-429 ◽  
Author(s):  
E. Wacholder ◽  
J. Dayan
Keyword(s):  
Sensitivity Analysis ◽  
Analysis Method ◽  
Adjoint Sensitivity ◽  
Supersonic Ejector ◽  
Sensitivity Analysis Method ◽  
Manufacturing Tolerances ◽  
Adjoint Functions ◽  
The One ◽  
Sensitivity Method

Although the concepts of various types of ejectors have been thoroughly discussed in the literature during the past sixty years, a rigorous sensitivity analysis of the ejector’s performance has never been presented. In the present work a sensitivity analysis method, based on the use of adjoint functions, is introduced and applied to the one-dimensional model of a supersonic ejector. The advantage of the proposed method over all other possible techniques is that a single computer run can provide the response function sensitivities with respect to all input parameters. The usefulness of the sensitivity coefficients in predicting the ejector’s performance and the uncertainty involved, as well as in the determination of manufacturing tolerances, is demonstrated and proven to be a powerful tool in the design.

Reliability-Based Sensitivity Design of Mechanical Components with Arbitrary Distribution Parameters

2008 ◽  
Vol 44-46 ◽  
pp. 885-892
Author(s):  
Zhou Yang ◽  
Yi Min Zhang ◽  
Li Sha Zhu
Keyword(s):  
Sensitivity Analysis ◽  
Random Parameter ◽  
Design Parameters ◽  
Arbitrary Distribution ◽  
Fourth Moment ◽  
Analysis Method ◽  
Mechanical Joints ◽  
Reliability Sensitivity ◽  
Sensitivity Analysis Method ◽  
Distribution Parameters

In the reliability-based analysis of mechanical joints, as each factor has different effect on the failure of mechanical joints, the effects of design parameters on reliability of the mechanical joints are determined with the reliability-based sensitivity analysis method. Furthermore, the reliability of mechanical joints can be effectively designed. As a matter of fact, if a change of a certain random parameter has great effect on the reliability of mechanical joints, the parameter must be strictly controlled in the course of design and manufacture to ensure reliability. Whereas if a change of a certain random parameter has unobvious effect on the reliability of mechanical joints, it can be treated as a deterministic value to reduce the complexity of the analysis. In this paper, based on the reliability design theory, the sensitivity analysis method and the fourth moment technique, the reliability sensitivity of the mechanical joints with arbitrary distribution parameters is extensively discussed and a numerical method for reliability sensitivity design is presented. The variation regularities of reliability sensitivity are obtained and the effects of design parameters on reliability of the mechanical joints are studied. The method presented in this paper provides reasonable and necessary reliability basis for the design, manufacture, use and evaluation of the mechanical joints.

scholarly journals Sensitivity of Design Parameters on State of Charge of Electric Vehicles

2020 ◽  
Vol 9 (11) ◽  
pp. 127-129
Keyword(s):  
Sensitivity Analysis ◽  
Electric Vehicles ◽  
State Of Charge ◽  
Design Parameters ◽  
Analysis Method ◽  
Vehicle Model ◽  
Main Design ◽  
Driving Cycles ◽  
Vehicle Mass ◽  
Sensitivity Analysis Method

Paper This study is to find out how sensitively the design parameters of Electric Vehicle (EV) will affect the State Of Charge (SOC) it. The main design parameters that selected are the frontal area of the vehicle, vehicle mass and coefficient of drag. With the help of Advisor software MatLab model of EV s made. The vehicle model is run in different universally accepted driving cycles with different values of design parameters selected. The analysis is done using the sensitivity analysis method, which will show how one parameter is affecting others.

Reliability-Based Sensitivity Design of Beam Structure with Non-Normal Distribution

2007 ◽  
Vol 353-358 ◽  
pp. 2459-2462
Author(s):  
Xiang Dong He ◽  
Yi Min Zhang ◽  
Yu Chun Xue ◽  
Bang Chun Wen
Keyword(s):  
Sensitivity Analysis ◽  
Normal Distribution ◽  
Design Theory ◽  
Design Parameters ◽  
Analysis Method ◽  
Beam Structure ◽  
Reliability Based Design ◽  
Reliability Sensitivity ◽  
Sensitivity Analysis Method ◽  
Distribution Parameters

Based on the reliability-based design theory and sensitivity analysis method, the reliability-based sensitivity design of beam structure with non-normal distribution parameters is extensively researched and a numerical method for reliability-based sensitivity design is presented. The variation regularities of reliability sensitivity are obtained and the effects of design parameters on reliability of beam structure are studied. The method presented in this paper provided the theoretic basis for the reliability-based design of beam structure with non-normal distribution parameters.

Efficient Sensitivity Analysis for Multibody Dynamics Systems Using an Iterative Steps Method With Application in Topology Optimization

2011 ◽  
Author(s):  
Guang Dong ◽  
Zheng-Dong Ma ◽  
Gregory Hulbert ◽  
Noboru Kikuchi ◽  
Sudhakar Arepally ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Topology Optimization ◽  
Multibody Dynamics ◽  
Optimization Problem ◽  
Finite Difference Methods ◽  
Analysis Method ◽  
Topology Optimization Problem ◽  
Design Variables ◽  
Sensitivity Analysis Method ◽  
Rotational Motions

Efficient and reliable sensitivity analyses are critical for topology optimization, especially for multibody dynamics systems, because of the large number of design variables and the complexities and expense in solving the state equations. This research addresses a general and efficient sensitivity analysis method for topology optimization with design objectives associated with time dependent dynamics responses of multibody dynamics systems that include nonlinear geometric effects associated with large translational and rotational motions. An iterative sensitivity analysis relation is proposed, based on typical finite difference methods for the differential algebraic equations (DAEs). These iterative equations can be simplified for specific cases to obtain more efficient sensitivity analysis methods. Since finite difference methods are general and widely used, the iterative sensitivity analysis is also applicable to various numerical solution approaches. The proposed sensitivity analysis method is demonstrated using a truss structure topology optimization problem with consideration of the dynamic response including large translational and rotational motions. The topology optimization problem of the general truss structure is formulated using the SIMP (Simply Isotropic Material with Penalization) assumption for the design variables associated with each truss member. It is shown that the proposed iterative steps sensitivity analysis method is both reliable and efficient.

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