software used for machine design

... Calculations for Machine Design was written to be a companion to Marks’ Standard Handbook for Mechanical Engineers, providing detailed calculations to the important problems in machine design. For each ... four rivets that must carry the force (P), the shear force (V ) for each rivet is Step 2. As there are four rivets that must carry the force (P), the shear force (V ) for each rivet is 4V = P → V ... columns, the secant formula for eccentric loading, as well as a discussion on how to deal with short columns. Chapter 7, Fatigue and Dynamic Design, contains information on how to design for dynamic...

... could substitute for QFD. 1.9 Design for Manufacture (DFM) The principles of design for manufacture and design for electronic as- sembly have been widely been used in industry through design guide- lines ... expensive engineering and design competencies, such as specific design analysis, some of which are used infrequently in project design cycles. 6 Six Sigma for Electronics Design and Manufacturing The ... process 10.2 Technical Design Information Flow and Six Sigma 327 System Design 10.2.1 Opportunities in six sigma for system or 328 product design improvements 10.2.2 The system design process 329 10.2.3...

... 201 3MACHINE DESIGN. com20 designs, they could be custom shaped to make better use of the available space. As the design stands now, we have al- most the entire forearm empty and available for ... electronics. Learn more and register at http://machinedesign.com/ training. Formula Hybrid racer The Formula Hybrid design competition has students building high-performance race cars that are also efficient ... www.jhuapl.edu/prosthetics For another feature on prosthetic hands, scan this code or go to http:// machinedesign.com/ article/giving-artificial- hands-a-sense-of- touch-0909 MARCH 7, 2013 MACHINE DESIGN. com...

... from outside, for example, in punching press forces of very large magnitude is applied for a short while (impulsive force), in crank shafts variable loads act due to nature of force arising ... cylinders. Often dynamic forces appear in the moving parts, e.g., inertia forces in machines and mechanisms, forces due to unbalance of the rotating components etc. Since these forces are to be withstood ... value. For a complete reversal of stress the value of K = -1. The design stress for completely reversing load is calculated using the formula 1, 1, 1 a d k σ σ − − − = where 1,d σ − = design...

... ) and can  boot several operating systems (Linux, uClinux, and others) Softgun: http://softgun.sourceforge.net Virtual ARM system with many virtual on­board peripherals.  Boots Linux. SWARM ­ Software ARM ­ arm7 emulator http://www.cl.cam.ac.uk/~mwd24/phd/swarm.html Can run uClinux 13 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 klibc http://www.kernel.org/pub/linux/libs/klibc/ “Kernel C library” Tiny and minimalistic C library designed for use in an initramfs at  boot time (alternative to initrds). Fine for the creation of simple shell scripts. Ships with small executables for use in shells, built with klibc, and a klcc compiler to compile your own applications. Not elaborate enough to support BusyBox applications. Useful details in  http://en.wikipedia.org/wiki/Klibc 19 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Platform specific toolchains (1) ARM Code Sourcery (supports GNU/Linux, EABI and uClinux): http://www.codesourcery.com/gnu_toolchains/arm/ Also available for Windows workstations. MIPS http://www.linux­mips.org/wiki/Toolchains (useful links) 6 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Training contents (3) Annexes Automatic system generation with BitBake / OpenEmbedded 33 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Other emulators ColdFire emulator http://www.slicer.ca/coldfire/ Can boot uClinux 37 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Minicom (1) Definition: serial communication program Available in all GNU / Linux distributions Capabilities (all through a serial link): Serial console to a remote Unix system File transfer Modem control and dial­up Serial port configuration 50 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Denx Software Engineering http://denx.de Created by Wolfgang Denk, the author of the U­Boot bootloader. Create and support the Embedded Linux Development Kit (ELDK), a complete and well documented development environment. This kit is not only Free Software, it can be downloaded freely by anyone. A great community member and contributor! 15 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Free Software tools for embedded systems GNU / Linux workstation Cross­compiling toolchains 9 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 uClibc http://www.uclibc.org/ from CodePoet Consulting License: LGPL Lightweight C library for small embedded systems, with most features  though. The whole Debian Woody was ported to it ... ) and can  boot several operating systems (Linux, uClinux, and others) Softgun: http://softgun.sourceforge.net Virtual ARM system with many virtual on­board peripherals.  Boots Linux. SWARM ­ Software ARM ­ arm7 emulator http://www.cl.cam.ac.uk/~mwd24/phd/swarm.html Can run uClinux 13 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 klibc http://www.kernel.org/pub/linux/libs/klibc/ “Kernel C library” Tiny and minimalistic C library designed for use in an initramfs at  boot time (alternative to initrds). Fine for the creation of simple shell scripts. Ships with small executables for use in shells, built with klibc, and a klcc compiler to compile your own applications. Not elaborate enough to support BusyBox applications. Useful details in  http://en.wikipedia.org/wiki/Klibc 19 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Platform specific toolchains (1) ARM Code Sourcery (supports GNU/Linux, EABI and uClinux): http://www.codesourcery.com/gnu_toolchains/arm/ Also available for Windows workstations. MIPS http://www.linux­mips.org/wiki/Toolchains (useful links) 6 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Training contents (3) Annexes Automatic system generation with BitBake / OpenEmbedded 33 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Other emulators ColdFire emulator http://www.slicer.ca/coldfire/ Can boot uClinux 37 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Minicom (1) Definition: serial communication program Available in all GNU / Linux distributions Capabilities (all through a serial link): Serial console to a remote Unix system File transfer Modem control and dial­up Serial port configuration 50 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Denx Software Engineering http://denx.de Created by Wolfgang Denk, the author of the U­Boot bootloader. Create and support the Embedded Linux Development Kit (ELDK), a complete and well documented development environment. This kit is not only Free Software, it can be downloaded freely by anyone. A great community member and contributor! 15 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Free Software tools for embedded systems GNU / Linux workstation Cross­compiling toolchains 9 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 uClibc http://www.uclibc.org/ from CodePoet Consulting License: LGPL Lightweight C library for small embedded systems, with most features  though. The whole Debian Woody was ported to it ... You can assume it satisfied most needs! Size (arm): 4 times smaller than glibc! uClibc: approx. 400 KB (libuClibc: 300 KB, libm: 55KB) glibc: approx 1700 KB (libc: 1.2 MB, libm: 500 KB) Now supported by MontaVista, TimeSys and Wind River. 42 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Other ways to find existing free software SourceForge: http://sourceforge.net/ Lots of projects hosted there FSF / UNESCO Free Software Directory:  http://directory.fsf.org/ More than 4300 projects indexed (Nov 2005) Internet search engines (of course!) 31 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 qemu user emulation User emulation (Linux host only) User mode emulation : can run applications compiled for another CPU.  Supported: x86, ppc, arm, sparc, mips, m68k Easy to run BusyBox for arm on i386 GNU / Linux: qemu­arm ­L /usr/local/arm/3.3.2 \ /home/bart/arm/busybox­1.4.1/busybox ls ­L: target C library binaries path (here cross­compiler toolchain path) 41 Free Software tools for embedded systems © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license http://free­electrons.com Jan 24, 2008 Freshmeat.net http://freshmeat.net/ The number one site for Free Software searches Most free software tools advertised there Easy keyword search Sort by relevance, vitality, popularity, last update...

... tensions • Some commonly used design parameters 13.1.1 Flexible Machine Elements Belt drives are called flexible machine elements. Flexible machine elements are used for a large number of ... them are as follows. 1. Used in conveying systems Transportation of coal, mineral ores etc. over a long distance 2. Used for transmission of power. Mainly used for running of various industrial ... driver, for which the product, μα of equation for belt tension is the least, should be considered to determine the tension ratio. References 1. V.Maleev and James B. Hartman , Machine Design, ...

... selected from design data book for the given service condition. For the design stress in the belt, max SPD W CC ′ σ =σ × × However, design stress, ′ σ , for leather belt may be considered ... short to account for correct initial tension. Sample Problem Design a flat belt drive for the following data: Drive: AC motor, operating speed is 1440 rpm and operates for over 10 hours. ... stresses and its specifications • Types of design factors • A sample design procedure. 13.2.1 Flat belt drives Flat belts drives can be used for large amount of power transmission and...

... Textbook of Machine Design 3. In single helical gears, the helix angle ranges from 20° to 35°, while for double helical gears, it may be made upto 45°. 29.429.4 29.429.4 29.4 ForFor ForFor For mama mama ma tivtiv tivtiv tiv e ... zero. 29.229.2 29.229.2 29.2 TT TT T erer erer er ms used in Helical Gearms used in Helical Gear ms used in Helical Gearms used in Helical Gear ms used in Helical Gear ss ss s The following terms ... D P / m = 80 / m and formative or equivalent number of teeth for the pinion, T E = P 33 3 80 / 80 / 226.4 cos cos 45 (0.707) T mm m === α° ∴ Tooth form factor for the pinion for 20° stub teeth, y' P = E 0.841...