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Dissertations / Theses on the topic 'Smooth paths'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Maier, Georg [Verfasser]. "Smooth Minimum Arc Paths : Contour Approximation with Smooth Arc Splines / Georg Maier." Aachen : Shaker, 2010. http://d-nb.info/1084536501/34.

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2

Pamali, Abhinand P. "Using Clothoidal Spirals to Generate Smooth Tool Paths for High Speed Machining." NCSU, 2004. http://www.lib.ncsu.edu/theses/available/etd-05212004-114758/.

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We present a new and innovative method to generate Contour Parallel tool paths using Clothoidal spirals for 2.5D pocket milling. The tool paths generated by the proposed method are more suitable for High Speed Machining compared to the traditional tool paths. Mechanical parts, such as those in Aerospace industry, Mold and Dies industry, etc require large volumes of milling operations. Modern High Speed CNC Machines are used in making of these parts. Although the High Speed CNC machines can provide very high spindle speed, due to various reasons, it has not been possible to use their High speed

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Bott, M. P. "A new, robust, and generic method for the quick creation of smooth paths and near time-optimal path tracking." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2095.

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Robotics has been the subject of academic study from as early as 1948. For much of this time, study has focused on very specific applications in very well controlled environments. For example, the first commercial robots (1961) were introduced in order to improve the efficiency of production lines. The tasks undertaken by these robots were simple, and all that was required of a control algorithm was speed, repetitiveness and reliability in these environments. Now however, robots are being used to move around autonomously in increasingly unpredictable environments, and the need for robotic cont

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4

Lu, Zhaosong. "Algorithm Design and Analysis for Large-Scale Semidefinite Programming and Nonlinear Programming." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7151.

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The limiting behavior of weighted paths associated with the semidefinite program (SDP) map $X^{1/2}SX^{1/2}$ was studied and some applications to error bound analysis and superlinear convergence of a class of primal-dual interior-point methods were provided. A new approach for solving large-scale well-structured sparse SDPs via a saddle point mirror-prox algorithm with ${cal O}(epsilon^{-1})$ efficiency was developed based on exploiting sparsity structure and reformulating SDPs into smooth convex-concave saddle point problems. An iterative solver-based long-step primal-dual infeasible path-fo

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5

Steiger, Wilfried. "Smooth continuous path motion generation for stepping motor driven manipulators." Thesis, Nottingham Trent University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384899.

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6

Salgado, Regis Baratti Lima. "A roughly smooth optimal consumption path: smoothing the rough annuity puzzle." reponame:Repositório Institucional do FGV, 2012. http://hdl.handle.net/10438/10169.

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Submitted by Regis Baratti Lima Salgado (regiss@fgvmail.br) on 2012-10-09T13:30:32Z No. of bitstreams: 1 TeseRegisBarattiLSalgado_VFim.pdf: 861409 bytes, checksum: 48cbf91a3e1e3ed3d3c91940bfde85ac (MD5)<br>Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2012-10-22T19:15:00Z (GMT) No. of bitstreams: 1 TeseRegisBarattiLSalgado_VFim.pdf: 861409 bytes, checksum: 48cbf91a3e1e3ed3d3c91940bfde85ac (MD5)<br>Made available in DSpace on 2012-10-23T18:23:36Z (GMT). No. of bitstreams: 1 TeseRegisBarattiLSalgado_VFim.pdf: 861409 bytes, checksum: 48

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7

Girbés, Juan Vicent. "Clothoid-based Planning and Control in Intelligent Vehicles (Autonomous and Manual-Assisted Driving)." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/65072.

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[EN] Nowadays, there are many electronic products that incorporate elements and features coming from the research in the field of mobile robotics. For instance, the well-known vacuum cleaning robot Roomba by iRobot, which belongs to the field of service robotics, one of the most active within the sector. There are also numerous autonomous robotic systems in industrial warehouses and plants. It is the case of Autonomous Guided Vehicles (AGVs), which are able to drive completely autonomously in very structured environments. Apart from industry and consumer electronics, within the automotive fiel

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8

Mansilla, Lucy Alsina Choque. "Transformada imagem-floresta com funções de conexidade não suaves: pesos adaptativos, polaridade de borda e restrições de forma." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-17032014-121734/.

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Segmentar uma imagem consiste em particioná-la em regiões relevantes para uma dada aplicação, como para isolar um objeto de interesse no domínio de uma imagem. A segmentação é um dos problemas mais fundamentais e desafiadores em processamento de imagem e visão computacional. Ela tem desempenhado um papel importante, por exemplo, na pesquisa em neurologia, envolvendo imagens de Ressonância Magnética (RM), para fins de diagnóstico e tratamento de doenças relacionadas com alterações na anatomia do cérebro humano. Métodos de segmentação baseados na transformada imagem- floresta (IFT, Image Fore

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9

Gim, Suhyeon. "Flexible and Smooth Trajectory Generation based on Parametric Clothoids for Nonholonomic Car-like Vehicles." Thesis, Université Clermont Auvergne‎ (2017-2020), 2017. http://www.theses.fr/2017CLFAC023/document.

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La génération de chemins lisses pour les voitures intelligentes est l’une des conditions les plus importantes pour faire accepter et faciliter la navigation autonome de ces véhicules. Cette thèse propose plusieurs méthodes de génération de chemins lisses pour les véhicules non-holonomes qui permet une continuité intrinsèque de la courbure de navigation et offre par ailleurs une flexibilité accrue pour diverses conditions aux limites. Le chemin de courbure continue est construit en composant plusieurs clothoids, comprenant notamment des segments de lignes et/ou d’arcs, et où chaque clothoid est

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Samaniego, Riera Franklin Eduardo. "Diseño de nuevos algoritmos de guiado y navegación con evasión de colisiones para vehículos aéreos no tripulados." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/161274.

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[ES] Debido a la creciente popularidad sobre la variedad de los Vehículos No Tripulados tanto en el campo militar como en el comercial, y de sus capacidades para navegar por diversos entornos, ya sean terrestres, aéreos o marinos, se evidencia que la clásica planificación de trayectorias y movimientos bidimensionales 2D podría no ser suficiente en un futuro inmediato. De esta manera, se debe resaltar que el presente trabajo aborda el problema de los Vehículos Aéreos No Tripulados (UAVs) de ala fija. En este sentido, la necesidad de encontrar una trayectoria navegable en el espacio euclídeo 3D

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11

Yu, Han-jun, and 余漢浚. "The Calculation of Tool-axis Orientations to Smooth the Tool Paths of Five-axis Machining." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/27923713826097766928.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>102<br>More and more companies in machining communities utilize five-axis machines to carry out material processing of complex components. The purpose of such machines is to ensure better processing quality. However, in order to enhance the processing quality, the smoothness of toolpath for five-axis machining is very important. Therefore, in accordance with the characteristics of five-axis toolpath strategies, this thesis has divided the geometry of typical to-be-machined parts into the following five types: convex shape, U-shape, concave shape, hole shape, and annu

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12

Khan, Maqsood Ahmed. "Piecewise Arc-Length Parameterized NURBS Tool Paths Generation for 3-Axis CNC Machining of Accurate, Smooth Sculptured Surfaces." Thesis, 2010. http://spectrum.library.concordia.ca/7529/1/Khan_PhD_S2011.pdf.

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In current industrial applications many engineering parts having complex shapes are designed using sculptured surfaces in CAD system. Due to the lack of smooth motions and accurate machining of these surfaces using standard linear and circular motions in conventional CNC machines, new commercial CNC systems are equipped with parametric curve interpolation function. However, in some applications these surfaces can be very complex that are susceptible to gouging and due to the approximation of; CL-path in CAM system and path parameter in real –time, high machining accuracy, smooth kinematic and

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13

Phan, Tan-Phat, and 潘晉發. "Image-Based Smooth Path Planning for Wheeled Robot." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/68451005488062907138.

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碩士<br>中國文化大學<br>機械工程學系數位機電碩士班<br>102<br>To guide a wheeled robot safely and smoothly in the space of obstacles, a novel path planning system including image-based planning and fuzzy path smoothing inference mechanism is proposed in this thesis. On the path planning system, various planning and smoothing techniques have been proposed to manipulate some scheduled waypoints. However, there exist some drawbacks in the announced methods, e.g., the time-consuming calculation and accumulated error etc. To tackle these problems, some obstacle reduction, path planning and smoothing methods are proposed

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14

"Smooth Path Planning Using Splines For Unmanned Planetary Vehicles." Master's thesis, 2013. http://hdl.handle.net/2286/R.I.20864.

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abstract: One of the main challenges in planetary robotics is to traverse the shortest path through a set of waypoints. The shortest distance between any two waypoints is a direct linear traversal. Often times, there are physical restrictions that prevent a rover form traversing straight to a waypoint. Thus, knowledge of the terrain is needed prior to traversal. The Digital Terrain Model (DTM) provides information about the terrain along with waypoints for the rover to traverse. However, traversing a set of waypoints linearly is burdensome, as the rovers would constantly need to modify their o

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15

HUANG, CHIEN-HSIANG, and 黃建翔. "Optimization of Acceleration/Deceleration Planning for Smooth Cornering Path." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8vgy2n.

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碩士<br>國立中正大學<br>機械工程系研究所<br>107<br>In this paper, a set of acceleration and deceleration optimization system is designed. The system mainly designs the optimal acceleration and deceleration plan with corner smoothing, asymmetric S-type acceleration and deceleration planning and particle swarm optimization. The best definition is the plan with the highest processing efficiency under the constraints of the machine. 　　The corner smoothing is three kinds of connecting paths for straight line and straight line, straight line and arc, and arc and arc. According to the corner error's tolerance value

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16

Lopes, Tiago Guia Ribeiro. "Alternative smoothing strategies in smooth partial least squares path modelling." Master's thesis, 2020. http://hdl.handle.net/10362/99737.

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Dissertation presented as the partial requirement for obtaining a Master's degree in Statistics and Information Management, specialization in Marketing Research e CRM<br>The assessment of nonlinear relationships in the context of Partial Least Squares Path Modelling (PLS-PM) has received a growing interest in recent years. One important contribution to this subject has been the work of Henseler, Fassot, Dijkstra and Wilson (2012) on the analysis of four different approaches to quadratic effects. The Smooth Partial Least Squares (PLSs) estimation technique studied in this work removes any

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17

Li, TsungYing, and 李宗穎. "Contouring Control for Five-axis Machine Tools with Non-smooth Path." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/32114283435713088138.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>100<br>This study investigates the designs of five-axis machine tools in different non-smooth paths. Due to the additional rotation axes, it is more difficult to achieve high speed and high accuracy for 5-axis machine tools, compared to the conventional machine tools. The main difficulties include: (1) the contouring controller is difficult to design; (2) in a 5-axis machine tool, the velocity profile of the machining path possesses complicated relationship with that of each axis, and hence is difficult to design. So we start with the two-axis machine tool to do t

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18

Chou, Feng-Yi, and 周峰毅. "Safe and Smooth Robotic Path Planning: A Large Margin SVM Embedded Approach." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/01932774442923724841.

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碩士<br>淡江大學<br>機械與機電工程學系碩士班<br>96<br>The paper presents a new model merging Voronoi tessellation with the optimization of support vector machine (SVM) which aims to develop a path planning for guiding a mobile robot safely and smoothly in the space with obstacles. Being a cell decomposition method for path generation, a Voronoi tessellation is employed as a preprocessor to rapidly generate a rough path in the 2-dimentional configuration space. The geometric property of Voronoi tessellation keeps the path distant away from obstacles as far as possible. Consecutively, a SVM postprocessor is used

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19

Cheng, Ching-wen, and 鄭景文. "Smooth and Collision-free Path Planning Using Genetic Algorithms with B-Spline Curves." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/40417806636886208524.

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碩士<br>國立臺南大學<br>資訊工程學系碩士班<br>98<br>Advances in mechatronics and artificial intelligence make robots play important roles in modern life. Bill Gates, the president of Microsoft Corporation, also predicted that the next hot field will be robotics. In the future, some domestic robots may be Humanoid robots as described in science fiction, but most of them will be household mobile robots that are responsible for particular housework. Path planning is an important issue in mobile robotics. In an environment with obstacles, path planning is to find a suitable collision-free path, which satisfies cer

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20

Chiu, Zheng-Kai, and 邱政愷. "Implementation of a Wheeled Robot with Obstacle Avoidance, Target Following and Smooth Path Planning Capabilities." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/geb7fe.

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碩士<br>國立暨南國際大學<br>電機工程學系<br>106<br>In these days, the wheeled robots are popular in the robotic search area. The wheeled robots can move more agilely in smooth ground. With the great mobility, the wheeled robots could complete more difficult missions. In the thesis, the structure of the wheeled robots is the acrylic plane with four wheels which can improve the carrying capacity. The high-torque motors force the front wheels. To reduce the radius of gyration, the ball casters with omni-direction metal are utilized as the rear wheels. The FPGA is employed as the core of the robot and it control

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21

Chang, Hsi-Tse, and 張惠澤. "SMOOTH TRAJECTORY PLANNING FOR INDUSTRIAL MANIPULATORS ALONG AN EUCLIDEAN OPTIMAL PATH WITH OBSTACLES IN THE PLANE." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/79949475518899635676.

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碩士<br>大同大學<br>電機工程研究所<br>89<br>In this thesis, we proposed an algorithm about the smooth trajectory planning for industrial manipulators along the shortest path with obstacles in the plane. First, an Euclidean shortest path, avoiding obstacles which were well covered by ellipses, was found by our algorithms. A smooth trajectory could be kept by limiting the torque and torque rate of the joints when the manipulator worked along the shortest path. From the Euclidean shortest path, determined by the thesis, we can be sure that the summation of distances is smallest for manipulators working along

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22

Sekaran, Aarthi. "Study of Impact of Orbit Path, Whirl Ratio and Clearance on the Flow Field and Rotordynamic Coefficients for a Smooth Annular Seal." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-848.

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The study of the effect of different orbit paths and whirl ratios on the rotordynamic coefficients of a smooth eccentric annular seal, using Computational Fluid Dynamics (CFD) was performed. The flow was simulated for two different orbits - linear and circular for orbit speeds ranging from 0 to 1. This was done using the FLUENT CFD code with a time - dependent solver which allowed the use of dynamic meshing and User Defined Functions (UDFs). The effect of clearance was also studied by simulating the flow through an eccentric seal with one-tenth the clearance and comparing the results. It was s

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