scholarly journals Design And Analysis Of Formula Sae Vehicle Rear Upright Andcomparision Of Analytical And Software Analysis Solutions Ofprincipelstressesat Differentpoints

2021 ◽  
Vol 12 (2) ◽  
pp. 2794-2809
Author(s):  
Sasanapuri Sandeep, Et. al.
Keyword(s):  
Analytical Solutions ◽  
Matlab Software ◽  
Formula Sae ◽  
Software Analysis ◽  
Different Types

Upright is used in vehicles which connects frame or chassis and tires. Chassis is connected toupright with A-arms at the top and bottom using different types of fasteners through which theload is transmitted to it. I choose to design a FSAE(formula society of automobile engineers) caruprightbasedonthedatacollectedfromarealtimehybridformulavehicle.Uprightismodeledin Solidworks 2015 and all principle stresses and strains are found through simulation analysissoftware ANSYS 19.2. Now these solutions are compared with the analytical solutions which issolved using MATLAB software, So that we can be able to predict which one is more accurateandhowthese simulationsoftwareare beingableto solveproblemsbased ontheseconcepts.

scholarly journals Recursive Differentiation Method for Boundary Value Problems: Application to Analysis of a Beam-Column on an Elastic Foundation

2014 ◽  
Vol 44 (2) ◽  
pp. 57-70 ◽  
Author(s):  
Mohamed Taha
Keyword(s):  
Differential Equations ◽  
Analytical Solutions ◽  
Boundary Value ◽  
Adomian Decomposition Method ◽  
Buckling Mode ◽  
Beam Columns ◽  
Differentiation Method ◽  
Adomian Decomposition ◽  
Different Types ◽  
Finite Domains

Abstract In the present work, the recursive differentiation method (RDM) is introduced and implemented to obtain analytical solutions for differential equations governing different types of boundary value prob- lems (BVP). Then, the method is applied to investigate the static behaviour of a beam-column resting on a two parameter foundation subjected to different types of lateral loading. The analytical solutions obtained using RDM and Adomian decomposition method (ADM) are found similar but the RDM requires less mathematical effort. It is indicated that the RDM is reliable, straightforward and efficient for investigation of BVP in finite domains. Several examples are solved to describe the method and the obtained results reveal that the method is convenient for solving linear, nonlinear and higher order ordinary differential equations. However, it is indicated that, in the case of beam-columns resting on foundations, the beam-column may be buckled in a higher mode rather than a lower one, then the critical load in that case is that accompanies the higher mode. This result is very important to avoid static instability as it is widely common that the buckling load of the first buckling mode is always the smaller one, which is true only in the case of the beam-columns without foundations.

scholarly journals Generation of Microclimates From the Differential Decomposition of Textiles in North Central Florida

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Raphaela M Meloro ◽  
Breeanne Linnea Nastav ◽  
Valerie B DeLeon
Keyword(s):  
Soil Temperature ◽  
Weather Data ◽  
Soil Environment ◽  
Decomposition Rates ◽  
North Central ◽  
Central Florida ◽  
Post Mortem Interval ◽  
Software Analysis ◽  
Different Types ◽  
Subsequent Decomposition

The analysis of textiles as trace evidence is an important area of focus in the field of forensic science, because enhanced understanding of the decomposition of textiles may point to more accurate methods for estimating the post mortem interval (PMI) of remains found in association with these materials. This research is especially crucial in areas with unique climates, like the state of Florida. This study examines the generation of microclimates from the differential decomposition of various textile types. This study hypothesized that the decomposition of textiles will generate microclimates with soil properties that differ from those of the surrounding environment, and that different types of textiles will create different microclimates as they decompose. Samples of cotton, UV-proofed cotton, polyester, cotton-polyester blended fabric, ripstop, and wool were buried at four sites on a property in North Central Florida for thirteen weeks, with measures of soil temperature, pH, and moisture level, and weather data collected weekly. Following burial, decomposition of each textile type was scored. Data collected were analyzed in R statistical software. Analysis indicated that the level of degradation differed by textile type but not by site. Textile presence, type of textile, and subsequent decomposition significantly impacted soil pH and moisture at all sites, but did not have a significant effect on soil temperature. The results of this study demonstrate that the decomposition of textiles can create diverse and unique microclimates in the soil environment. When found in association with human remains, presence and type of textile should be considered when estimating decomposition rates and the postmortem interval.   

scholarly journals Acoustic Resonance in a Reservoir-Pipeline-Orifice System

2010 ◽  
Author(s):  
Arris S. Tijsseling ◽  
Qingzhi Hou ◽  
Bjo̸rnar Svingen ◽  
Anton Bergant
Keyword(s):  
Analytical Solutions ◽  
Large Scale ◽  
Theoretical Study ◽  
Acoustic Resonance ◽  
Numerical Results ◽  
Oscillating Flow ◽  
Different Types

The fundamentals of oscillating flow in a reservoir-pipe-orifice system are revisited in a theoretical study related to acoustic resonance experiments carried out in a large-scale pipeline. Four different types of system excitation are considered: forcing velocity, forcing pressure, linear oscillating resistance and nonlinear oscillating resistance. Analytical solutions are given for the periodic responses to the first three excitations. Analytical and numerical results for the large-scale pipeline are presented and some peculiarities are discussed.

scholarly journals Chaotic provinces in the kingdom of the Red Queen

2016 ◽  
Author(s):  
Hanna Schenk ◽  
Arne Traulsen ◽  
Chaitanya S. Gokhale
Keyword(s):  
Analytical Solutions ◽  
Arbitrary Number ◽  
Chaotic Dynamics ◽  
General Framework ◽  
Red Queen ◽  
Parameter Region ◽  
Long Run ◽  
Different Types ◽  
Deterministic Framework ◽  
The Red Queen

AbstractThe interplay between parasites and their hosts is found in all kinds of species and plays an important role in understanding the principles of evolution and coevolution. Usually, the different genotypes of hosts and parasites oscillate in their abundances. The well-established theory of oscillatory Red Queen dynamics proposes an ongoing change in frequencies of the different types within each species. So far, it is unclear in which way Red Queen dynamics persists with more than two types of hosts and parasites. In our analysis, an arbitrary number of types within two species are examined in a deterministic framework with constant or changing population size. This general framework allows for analytical solutions for internal fixed points and their stability. For more than two species, apparently chaotic dynamics has been reported. Here we show that even for two species, once more than two types are considered per species, irregular dynamics in their frequencies can be observed in the long run. The nature of the dynamics depends strongly on the initial configuration of the system; the usual regular Red Queen oscillations are only observed in some parts of the parameter region.

scholarly journals The Analytical Solution of Parabolic Volterra Integro- Differential Equations in the Infinite Domain

2016 ◽  
Author(s):  
Yun Zhao ◽  
Feng-Qun Zhao
Keyword(s):  
Fourier Transform ◽  
Analytical Solution ◽  
Differential Equations ◽  
Analytical Solutions ◽  
Kernel Functions ◽  
Infinite Domain ◽  
Memory Kernel ◽  
One Dimensional ◽  
Different Types ◽  
Frictional Memory Kernel

This article focuses on obtaining the analytical solutions for parabolic Volterra integro- differential equations in d-dimensional with different types frictional memory kernel. Based on theories of Laplace transform, Fourier transform, the properties of Fox-H function and convolution theorem, analytical solutions of the equations in the infinite domain are derived under three frictional memory kernel functions respectively. The analytical solutions are expressed by infinite series, the generalized multi-parameter Mittag-Leffler function, Fox-H function and convolution form of Fourier transform. In addition, the graphical representations of the analytical solution under different parameters are given for one-dimensional parabolic Volterra integro-differential equation with power-law memory kernel. It can be seen that the solution curves subject to Gaussian decay at any given moment.

scholarly journals APPLICATION OF ANALYTICAL SOLUTIONS FOR BENDING BEAMS IN THE METHOD OF MOVEMENT

2021 ◽  
Vol 6 (4) ◽  
pp. 42-53
Author(s):  
Vladimir Karpov ◽  
◽  
Evgeny Kobelev ◽  
Aleksandr Panin ◽  
◽  
...  
Keyword(s):  
Analytical Solutions ◽  
Accurate Solution ◽  
Transverse Load ◽  
Bending Moments ◽  
Displacement Method ◽  
Lagrange Principle ◽  
Concentrated Force ◽  
Concentrated Load ◽  
Local Loads ◽  
Different Types

Introduction: Usually, to analyze statically indeterminate rod systems, the classical displacement method and preprepared tables for two types of rods of the main system are used. A mathematically correct representation of local loads with the use of generalized functions makes it possible to find an accurate solution of the differential equation for the equilibrium of a beam exposed to an arbitrary transverse load. Purpose of the study: We aimed to obtain analytical expressions for functions of deflection, rotation angles, transverse forces, and bending moments depending on four types of local loads for beams with different boundary conditions, so as to apply accurate solutions in the displacement method. Methods: We propose an analytical form of the displacement method to analyze rod structural models. For beams exposed to different types of transverse load (uniformly distributed force, concentrated force, or a couple of forces), accurate analytical solutions were obtained for functions of deflection, bending moments, and transverse forces at different types of beam ends’ restraint. This is possible due to the fact that concentrated load and load in the form of the moment of force can be specified by using unit column functions. By transforming Mohr’s integrals, using integration by parts, we show that the system of canonical equations of the displacement method was obtained based on the Lagrange principle. Results: Based on the analysis of a statically indeterminate frame, the effectiveness of the proposed analytical method is shown as compared with the classical displacement method.

Parametric Study for Design and Analysis of Box Culvert by Using Newton's-Raphson Method and MATLAB Software

2020 ◽  
Vol 870 ◽  
pp. 11-19
Author(s):  
Layth Abdul Rasool Al Asadi ◽  
Hussein Shakir Al Bahrani ◽  
Luay Kadhim Al Waeli
Keyword(s):  
Earth Pressure ◽  
Design Parameters ◽  
Matlab Software ◽  
Discharge Water ◽  
Different Types ◽  
Box Culverts ◽  
Box Culvert ◽  
Earth Fill ◽  
Pressure Factor ◽  
Raphson Method

Box culverts are the monolithic unit build to pass across railway lines, roadways, etc. earthworks are made to balance the discharge water on both sides. Box takes different types of loads created by a cushion, traffic, water, soil, etc. This paper deals with the optimum design of box culvert by using Newton's-Raphson Method and AppDesigner in MATLAB Software R2017a and studies the design parameters such as the influence of depth of earth fill at the top slab of the culvert, earth pressure, factor Dead Load, Live load, effective width, etc. In this paper, the study of the box-culvert with normal and minimum cushion analyzed for different classes of loadings and conclusions made on the basis of Newton's-Raphson Method normal and minimum cushion and normal cushioning cases.

The extinction time of a general birth and death process with catastrophes

1986 ◽  
Vol 23 (04) ◽  
pp. 851-858 ◽  
Author(s):  
P. J. Brockwell
Keyword(s):  
Laplace Transform ◽  
Size Distribution ◽  
Sufficient Conditions ◽  
Necessary And Sufficient Conditions ◽  
Death Process ◽  
Extinction Time ◽  
Birth And Death Process ◽  
Different Types ◽  
The Laplace Transform ◽  
Necessary And Sufficient

The Laplace transform of the extinction time is determined for a general birth and death process with arbitrary catastrophe rate and catastrophe size distribution. It is assumed only that the birth rates satisfyλ0= 0,λj> 0 for eachj> 0, and. Necessary and sufficient conditions for certain extinction of the population are derived. The results are applied to the linear birth and death process (λj=jλ, µj=jμ) with catastrophes of several different types.

Differentiating between different forms of moral obligations

2020 ◽  
Vol 43 ◽  
Author(s):  
Rajen A. Anderson ◽  
Benjamin C. Ruisch ◽  
David A. Pizarro
Keyword(s):  
Moral Character ◽  
Moral Obligations ◽  
Different Types

Abstract We argue that Tomasello's account overlooks important psychological distinctions between how humans judge different types of moral obligations, such as prescriptive obligations (i.e., what one should do) and proscriptive obligations (i.e., what one should not do). Specifically, evaluating these different types of obligations rests on different psychological inputs and has distinct downstream consequences for judgments of moral character.

Ultrastructural Investigations of the Contractile Filaments of Amoebae

1974 ◽  
Vol 32 ◽  
pp. 188-189
Author(s):  
P.L. Moore
Keyword(s):  
Cytoplasmic Streaming ◽  
Three Dimensional ◽  
Freeze Fracture ◽  
Amoeboid Movement ◽  
Different Types ◽  
Chemical Conditions ◽  
Complete Interpretation

Previous freeze fracture results on the intact giant, amoeba Chaos carolinensis indicated the presence of a fibrillar arrangement of filaments within the cytoplasm. A complete interpretation of the three dimensional ultrastructure of these structures, and their possible role in amoeboid movement was not possible, since comparable results could not be obtained with conventional fixation of intact amoebae. Progress in interpreting the freeze fracture images of amoebae required a more thorough understanding of the different types of filaments present in amoebae, and of the ways in which they could be organized while remaining functional.The recent development of a calcium sensitive, demembranated, amoeboid model of Chaos carolinensis has made it possible to achieve a better understanding of such functional arrangements of amoeboid filaments. In these models the motility of demembranated cytoplasm can be controlled in vitro, and the chemical conditions necessary for contractility, and cytoplasmic streaming can be investigated. It is clear from these studies that “fibrils” exist in amoeboid models, and that they are capable of contracting along their length under conditions similar to those which cause contraction in vertebrate muscles.

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