Machine design lecture notes ppt
Factors affecting design details. Selection of materials. Modes of loading. Safety factors and allowable stresses. Design of detachable joints: threaded joints , keys and splines. Design of permanent joints: welding, interference fitting, riveting, riveting, adhesion.
Design of some machine elements: springs, power screws, Thin pipes and pressure vessels, Seals and design of hydraulic and pneumatic cylinders. Application of computer aided design. Introduction to power transmission elements. Creation of new and better machines AND Improving existing ones So that it is economical in the cost of production and operation. Fluid flow, Heat transfer, Friction, Energy transport, Material selection, Statistical descriptions, ……….
Define functions of the device. State design requirements. Define evaluation criteria. Propose several alternative design concepts.
Evaluate each proposed alternative. Rate each alternative against each evaluation criteria. Select the optimum design concept. Complete detailed design of the selected concept. Strength, hardness, durability, flexibility, weight, resistance to heat and corrosion, electrical conductivity, machinability, etc. Important considerations in Machine Design…..
Form and size of the parts Use I-beam or Angle-iron? General procedure in Machine Design….. Need or aim Recognize and specify the problem Select the mechanism that would give the desired motion and form the basic model with a sketch etc Synthesis Analysis of the FORCES Material selection Determine the stresses and thereby the sizes of components s.
Syllabus and method of evaluation. Create Presentation Download Presentation. Skip this Video. Safe designs tend to function well and perform reliably. The United States law recognizes the concept of strict reliability. The manufacturer of a product is responsible for any damage or harm that arises due to a defect in the product. Negligence does not have to be proven. A plaintiff only has to establish that the product was defective and that the defect caused damage or harm. Some samples will have strengths greater than the specified value.
Others — hopefully a very few — will have strengths lower than the specified value. The actual fraction is based upon experience with successful designs.
Still used by civil engineers and for the design of weldments. Based upon the concept of reliability, R:. Create Presentation Download Presentation. Skip this Video. Loading SlideShow in 5 Seconds.. Download Presentation.
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1 a. Introduction design of machine element. Dr.R. SELVAM. views. •. 17 slides · Design considerations and engineering materials. Full syllabus notes, lecture & questions for PPT: Fundamentals of Machine Design Notes | Study Design of Machine Elements – Mechanical Engineering. Aims This course is provided to give the student the knowledge to Produce a useful machine/device/product that is safe, efficient, economical, and practical. What is Machine Design?. Creation of new and better machines AND Improving existing ones So that it is economical in the cost of production and. note: some slides of this file contain animation. ME Machine Design -. lecture 5: fully-reversing fatigue and the s-n diagram. w dornfeld.
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Machine design lecture notes ppt.PPT – ME Machine Design PowerPoint presentation | free to view – id: 3eMjE0M
Concept 6 Two integrated, split transverse cross members, rear transverse member similar to original, reduced sheet thickness in cross members. Alternative design concepts for cross members in a light-duty truck floorpan assembly.
Intermediate design always involves iterations. The design projects will involve elements of detail design. If a requirement affects design, it is called a design consideration.
For example, if the ability to carry large loads without failure is important, we say that strength is a design consideration. ASME groups develops and maintains standards using committees. Essentially, a code is a set of standards with the force of law behind it. Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more. Toggle navigation. Help Preferences Sign up Log in.
Title: ME Machine Design. Tags: curve design machine strain stress. Store or absorb energy. May be made of round or rectangular wire bent into a suitable form such as a coil, or made of flat stock loaded as a beam.
These are shown in the previous page. Helical Compression Springs Used in applications involving large deflections, such as shock absorbers in automobiles or to hold batteries in consumer products. Used in valve-return springs in engine, die springs, etc. Conical Springs Spring rate is nonlinear. By varying coil pitch, a nearly constant spring rate can be obtained. Advantage is the ability to close to a height as small as one wire diameter if the coils nest.
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Siddiqui, Asst. Norton, McGraw Hill. Course Project….. Activate your 30 day free trial to unlock unlimited reading. The SlideShare family just got bigger. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. You also get free access to Scribd! Instant access to millions of ebooks, audiobooks, magazines, podcasts and more.
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Unit 1 what is machine design. Somnath Kolgiri. Next SlideShares. You are reading a preview. Activate your 30 day free trial to continue reading. Continue for Free.
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Complete detailed design of the selected concept. Prototyping: Visualizing and Improving the Design. Communication: Engineering Drawings, Specifications. Production: Final Design, Manufacturing, Distribution. Strength, hardness, durability, flexibility, weight, resistance to heat and corrosion, electrical conductivity, machinability, etc. Form and size of the parts Use I-beam or Angle-iron? Need or aim Recognize and specify the problem Synthesis Select the mechanism that would give the desired motion and form the basic model with a sketch etc Analysis of the FORCES Material selection Determine the stresses and thereby the sizes of components s.
Engineering analysis and simulation Finite element, fluid flow, dynamic analysis, motion, etc. Math solvers Spreadsheet, procedural programming language, equation solver, etc.
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