design and construction of an automatic moldboard profilograph

Authors

جعفر مساح

استادیار، گروه فنی کشاورزی، دانشکده فنی و مهندسی، پردیس ابوریحان، دانشگاه تهران، تهران رضا علیمردانی

استاد، گروه مهندسی مکانیک ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، تهران جواد خزائی

استادیار، گروه فنی کشاورزی، دانشکده فنی و مهندسی، پردیس ابوریحان، دانشگاه تهران، تهران سید مهدی شریعتمداری

استادیار، گروه فنی کشاورزی، دانشکده فنی و مهندسی، پردیس ابوریحان، دانشگاه تهران، تهران

abstract

this paper presents design and construction of an automatic moldboard profilograph by substituting an optical sensor and a control system together with its evaluation. the modified profilograph is an electro mechanical apparatus in which a micro switch and a dc motor was replaced with an optical sensor and a control system for revolution of a dc motor. thereby, the considered surface is measured using a non – contact sensor. this apparatus has the capability of drawing the profilograms of a 3-d object as a 2-d drawing in the same contour lines. the profilograms drawn by this apparatus can be useful in moldboard design and its surface modeling. in the end, drawn profilograms before and after modification were compared. then, to verifying apparatus performance, the horizontal and vertical profilograms of a cylindroidal moldboard was drawn.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Design and Construction of an Automatic pH Adjustment System by Instant Feedback Method

Evaluations of the acidity or alkalinity of solutions are used in many industries such as food industries, medicine, chemical engineering, petrochemical industries, agriculture, animal husbandry, industrial laboratories, etc. Portable and stationary pH measurements are very common and are an integral part of these studies, due to the importance of pH. In most of these evaluations and studies, a...

full text

Design and implementation of an automatic car turning system

In this paper, a control system is designed for automatic car turning. At first, the necessary information of car turning that were collected from the traffic bylaw, car driving training centers and traffic police are explained. Then, car turning is studied experimentally on several streets with different widths. Afterward, a proper path is designed for the automatic car turning system consider...

full text

Design and Construction of an Electromagetic Supension System for Vehicles

This paper introduces a novel passive suspension system for ground vehicles. This system is based on a flexible Electromagnetic Shock Absorber (EMSA). In the proposed system, efforts are made to a) select a high damping coefficient usable in a car b) determine Physical dimensions and geometry not much different from those of the mechanical shock absorbers and c) seletct EMSA weight and volume l...

full text

design of an analog fuzzy logic controller chip

fuzzy logic has been developed over the past three decades into a widely applied techinque in classification and control engineering. today fuzzy logic control is one of the most important applications of fuzzy set theory and specially fuzzy logic. there are two general approachs for using of fuzzy control, software and hardware. integrated circuits as a solution for hardware realization are us...

15 صفحه اول

Design and Construction of an Electromagetic Supension System for Vehicles

This paper introduces a novel passive suspension system for ground vehicles. This system is based on a flexible Electromagnetic Shock Absorber (EMSA). In the proposed system, efforts are made to a) select a high damping coefficient usable in a car b) determine Physical dimensions and geometry not much different from those of the mechanical shock absorbers and c) seletct EMSA weight and volume l...

full text

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023