Pdf design and development of valve train system for. Here, the cam follower mechanism was modelled at the global origin with the nx cad software. Originalityvalue the novelty of the paper is consisted in presenting an integrated simulation methodology in order to precisely model, in component and assembly basis, the follower cam. What are the applications of different types of cam. They work in teams of 34 members and document their lab experience and results in a fo rmal technical report. You can apply the motion anywhere in your mechanism. Initially we will show how to create cam and follower parts next we w. Analysis and simulation of cam follower mechanism using. Luckily, suppliers of camfollower bearings list each camfollowers capacity as a force rather than a stress. In this video we will display how to create and simulate a cam and follower assembly.
There are three major parts in the setup as shown below. Calculation methodology and case studies on cam follower wear. Choose between virtually any standard cam motion with a couple mouse clicks. The cam follower mechanism is versatile and almost any arbitrarilyspecified motion can be achieved. Simulation model of cam follower mechanism with 345 polynomial cam profile. Simulation of a cam follower inventor 2017 autodesk. The portion to be mated must be one of the following. Cam simulator file exchange matlab central mathworks.
Linear and cylindrical cams for translating follower pivot distance y disc and linear cams for swinging arm arm length l a disc and linear cams for. You will enter the measurements for the flat or roller follower, or overhead cam valve train into the program. Deduction of the design of valve lift motion from a measured cam profile and the known geometry of the cam follower. Given a set of motion programs this interface plots the cam profile and rotates it. Visit my blog to learn how it is done with the autodesk inventor. The cam and follower is made of several basic components, figures 3, 4.
Analytix cams mechanical engineering software saltire software. Then, jump to our introduction and learn about the following questions. A number of methods of spring pack design are available to allow combined optimization with camshaft profile design. The camfollowers force capacity assumes it operates in a perfect environment. Modeling contact forces in a cam follower video matlab. Hello, i am making a 4 cylinder engine assembly and i am having difficulty for constraining cam with the cam follower. Analysis and simulation of cam follower mechanism using polynomial cam profile pages. Plus, how to choose the right program for your needs. This simulation program deals with many aspects of engine design related to the cylinder head. Camfollower experiment description the purpose of the camfollower experiment is to.
The cam has several faces and i chose one of them as the cam face. The contact pressure distribution on the cam and follower surface is calculated by imposing the boundary conditions of contact force, lubricant damping value and fixity constraint. Then copy and paste the embed code into your own web page. Valdyn kinematics produces comprehensive outputs to enable springcam design to be assessed, including cam contact hertzian stress, oil film thickness, cam wear, spring cover, spring stress and spring natural frequency. The contact end of the follower is roller and the rolling motion exists between the cam and follower. Mathworks is the leading developer of mathematical computing software for engineers and scientists. Heres how analytix cams is used to synthesize a cam profile. Drive constraint with adaptive component is animation. The problem is that when i make an animation out of it the follower will attach to that single face that i defined as my cam face and so it doesnt simulate a proper. The problem is defined as nonlinear by imposing a contact pair between the cam and the follower body.
At the tool, for forward kinematics, or at the camfollower or servoaxis for forward kinematics although we would always recommend inversekinematics. These systems may comprise various combinations of cam shapes, follower motions, follower arrangements and follower geometry. The simulation shows how labels are glued and applied to bottles. Use mechdesigner cad software to design complex mechanisms, cams and motions use mechdesigner to design machines so that they move smoothly and precisely with mechdesigner, it is easy to design any number of mechanisms and cams in one model, then analyze, scrutinize and optimize all of them together, so that you can get the best machine performance. This type of simulation should be done in dynamic sim environment. Analytix cams enables mechanical engineers to quickly synthesize a cam profile given their follower motion requirements. The cam is in most cases merely a flat piece of metal that has had an unusual shape or profile machined onto it. The use of algebraic polynomials to specify the follower motion is a new choice for cam. Check out our selection of the best cam software for solidworks, autocad, and other cad software. Another helpful item for choosing a cam is the free software offered by comp cam. The camfollower mechanism plays an important role in applications such as internal. These components are the cam, which displaces the follower, the linear bearings which hold the follower in place, and the cam shaft which connects the cam and the cam pulley. A twomass, singledegreeoffreedom dynamic model was created in simulink, a dynamic modeling tool, and validated by comparing to the model results from the cam design program, dynacam.
Cam sistemi animasyon solidworks 2015 spring and cam follower duration. Modeling contact forces in a geneva drive related videos. First, you choose the camfollower type and such things as direction of rotation and follower. Basic radius r 0 disc and cylindrical cams motion length l c linear cams cam width b c roller radius r r roller width b r for follower shape cylinder eccentricity e disc cams for translating follower eccentricity angle. A cam gear consists of a frame, a cam and a follower. For example, you are modelling a camfollower connection made up of a cylinder. I am trying to make an animation of a cam and follower mechanism and i have defined a cam mate between the two parts,namely the cam and follower. Controlled induction camshaft requirement software guarantees it. The type of follower used with this cam is the rollerfollower. This cam and follower mechanism is just part of it. Cam and follower modelling and motion simulation video. Adamsmachinery cam provides modeling options for 2d and 3d motion as well as a constraint or contact based camfollower interface. The process to choose the optimal motion law of the cams followers by fuzzy.
Cam and followermodelling and motion simulation video tutorial. Cam design software is fully integrated into mechdesigner. With analytix simulation software, you can optimize the camfollower interaction with your mechanical system. Cams can be produced in any shape, but the most common shapes are. Adams full simulation package is a powerful modeling and simulating environment that lets you build, simulate, refine, and ultimately optimize any mechanical system, from automobiles and trains to vcrs and backhoes. Data acquisition and computer simulation integrated. Basic adams full simulation package training teaches you how to build.
Initially we will show the way to create cam and follower parts next we will place them in assembly. The cam follower is a compact bearing with a highrigidity shaft and a builtin needle bearing. Then export dxf to cad or coordinate data to nccam software. Cam and followermodelling and motion simulation video. This article will discuss the calculation method of the velocity of cam follower. Simulation of cam and follower autodesk inventor on vimeo.
Click to access the camfollower connection definition dialog box and create. Insert the cam and follower into an assembly and add mates to prevent motion that is extraneous to the intended motion between the cam and follower. We will discuss the differential method for finding relation between the angular velocity of a cam and the linear velocity of a follower. This cam is attached to a shaft which enable it to be turned by applying a. A cam and follower system is systemmechanism that uses a cam and follower to create a specific motion. Or from an existing cam profile, the followers geometry and kinematics can be quickly designed, finetuned and analyzed. Tushar kiran et al analysis and simulation of cam follower mechanism using polynomial cam profile 214 int. Simulation software simulation of cam and follower mechanism simulation can be done using most recent simulation software, here in this paper attempt is made to carry out simulation using proengineering simulation module called promechanica figure 3. You can model then let mechdesigner calculate the cam coordinates of just about every cam type.
As the cam turns, the eccentricshaped cam lobe lifts and lowers a cam follower, or lifter. Application of different angular increment to different cam segment in a single simulation for every profile generated. Software for cam, mechanism and motion design, analysis and simulation. Cams and followers mechanical devices aqa bbc bitesize.
Cam and follower modelling and motion simulation video tutorial siemens nx 10. Keywords conjugate cam mechanism fuzzy evaluation simulation software. The software defines cams as extending infinitely in the extrusion direction. Predictions of cam follower wear in diesel engines. This video shows simulation of cam and follower with the help of autodesk inventor software.
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