Kinematics Of Mechanical Systems: Fundamentals,...
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This book is aimed to provide comprehensive and systematic knowledge of kinematic synthesis as developed up to date. Modern mechanical systems require advance kinematics knowledge to support mechanism design with sound theories and methods. The book includes not only the classical foundations of kinematic synthesis, but also the latest advances developed by the authors. Moreover, many examples are included to illustrate both methods and their supporting theory.
Prerequisite: MECHENG 382. (3 credits) Mathematical modeling of manufacturing processes used in industry to manufacture mechanical systems: machining, deformation, welding, assembly, surface treatment, and solidification processes. Process costs and limits; influence of processes on the final mechanical properties of the product. Reconfigurable manufacturing, Rapid prototyping, Direct Metal Deposition (DMD) and semiconductor manufacturing. (Course Profile)
Kinematic analysis of mechanisms such as linkages, flywheels, cams and gears. Dynamic forces and vibrations of mechanisms. M E 380 Machine Dynamics (3)In this course students learn how to apply the techniques of dynamics to analyze both the motion and forces associated with planar mechanisms. Students learn how to model and solve for the position, velocity, acceleration and forces on linkages using vectors. They also study the kinematics of gears, flywheels and cams. Machine vibrations is introduced as an integral part of Machine Dynamics. Students learn how to model simple mechanical systems as vibrating systems and then analyze the vibratory response of these systems. Once these analytical skills have been developed, the students can apply these skills to the design of linkages, internal combustion engines, gears, shafts and cams. Several in-class exams are used to evaluate students' performance. Computer problems are assigned so students can experience the solution methods to some of the more complex problems. This required course integrates material from calculus and dynamics to provide the student with tools that can be used to analyze the motion of machinery and can be used in the design of machinery and machine components. It is offered annually in the Fall semester and occasionally in the Spring semester.
This lab is about Dynamic systems and Vibration. It studies the step response of first order system and second-order system: how to quantify transient response using parameters such as amplitude, frequency, overshoot, rising time, etc; and relate them to the modeling parameters such as time constant, damping ratio and natural frequency. It also studies free vibration and harmonically excited vibration of SDOF, MDOF, and continuous mechanical systems: how to identify the resonance of vibration and measure/derive the transmissibility, and relate them to the modeling parameters such as damping ratio, natural frequency, and mode shapes. The proper implementation of those relation in the vibration isolation and absorption are also studied.
21st Century Kinematics focuses on algebraic problems in the analysis and synthesis of mechanisms and robots, compliant mechanisms, cable-driven systems and protein kinematics. The specialist contributors provide the background for a series of presentations at the 2012 NSF Workshop. The text shows how the analysis and design of innovative mechanical systems yield increasingly complex systems of polynomials, characteristic of those systems. In doing so, it takes advantage of increasingly sophisticated computational tools developed for numerical algebraic geometry and demonstrates the now routine derivation of polynomial systems dwarfing the landmark problems of even the recent past.The 21st Century Kinematics workshop echoes the NSF-supported 1963 Yale Mechanisms Teachers Conference that taught a generation of university educators the fundamental principles of kinematic theory. As such these proceedings will provide admirable supporting theory for a graduate course in modern kinematics and should be of considerable interest to researchers in mechanical design, robotics or protein kinematics or who have a broader interest in algebraic geometry and its applications.
Flight in flies results from a feedback cascade in which the animal converts mechanical power produced by the flight musculature into aerodynamic forces. A major goal of flight research is to understand the functional significance of the various components in this cascade ranging from the generation of the neural code, the control of muscle mechanical power output, wing kinematics and unsteady aerodynamic mechanisms. Here, I attempted to draw a broad outline on fluid dynamic mechanisms found in flapping insect wings such as leading edge vorticity, rotational circulation and wake capture momentum transfer, as well as on the constraints of flight force control by the neuromuscular system of the fruit fly Drosophila. This system-level perspective on muscle control and aerodynamic mechanisms is thought to be a fundamental bridge in any attempt to link the function and performance of the various flight components with their particular role for wing motion and aerodynamic control in the behaving animal. Eventually, this research might facilitate the development of man-made biomimetic autonomous micro air vehicles using flapping wing motion for propulsion that are currently under construction by engineers.
MECH 209. Advanced Mechatronics IIIElectro-mechanical modeling and system development. Introduction to mechatronic support subsystems: power, communications. Fabrication techniques. Functional implementation of hybrid systems involving dynamic control and command logic. Also listed as ELEN 462. Prerequisite: MECH 208. (2 units)
Classification and applications for mechanical manipulator systems.Manipulator motion description, forward kinematics transformations, andsolution of inverse kinematics equations. Velocity kinematics and manipulator dynamicsequations. Trajectory generation and control schemes including sensoryfeedback. Laboratory exercises to augment lecture material.
Prerequisite: ME 134 or permission of coordinator. Dynamics of mechanical systems with emphasis on equations of motion. Kinematics of particles, energy and momentum methods, variational methods, LaGrange's method, kinematics and plane motion of rigid bodies, kinetics of rigid bodies in three dimensions, mechanical vibrations.
KMODDL is a collection of mechanical models and related resources for teaching the principles of kinematics--the geometry of pure motion. The core of KMODDL is the Reuleaux Collection of Mechanisms and Machines, an important collection of 19th-century machine elements held by Cornell's Sibley School of Mechanical and Aerospace Engineering.
Writing to Cornell's president Andrew D. White in 1882, Dr. Franz Reuleaux enthusiastically describes his kinematic mechanisms that White has purchased for the teaching of mechanical engineering. Reuleaux's basic field was machine design, but within that, his speciality - avocation, really - was kinematics: the mathematical description of motion.
There is little reference in archived materials to the use of the Reuleaux collection in the mechanical engineering curriculum, but there is a set of 40 index cards, with descriptions of various mechanisms in the Cornell collection. These cards reference Reuleaux's Kinematics of Machinery as well as other books on kinematics in the late l9th and early 20th century and appear to have been written in the 1940s or 1950s. One possibility is that they were used in the original Sibley Hall Museum display before the collection was moved to Upson Hall around 1950.
The study of kinematics as a separate discipline in mechanical engineering dwindled by the early l950s, partly because it became recognized that dynamics as well as kinematics was important in the design of machines. Reuleaux and other kinematicians had all but ignored dynamics. In the late 20th century, however, kinematics has seen a renaissance due largely to the development of high-speed computers for computer-aided design and engineering. Mechanisms still form a vital component of design in the automotive, aircraft, space, and manufacturing industries, as well as in the electronics industry. 59ce067264
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