In this paper we present an approach to adaptive control of hydraulic actua tors with exible mechanical loads The approach is based on recursive identi cation of low order models of the dynamics from valve input to actuator position and e ective load pressure respectively The model parameters are used to com pute a regulator that gives a well damped system with good servo properties The identi ...

This paper presents innovative manufacturing and control procedures applied in the design, construction and operation, of a mobile hydraulic press machine (RoboPress). The research demonstrates how the design of an automated mobile manufacturing system can be optimized through using qualitative modeling and simulation from artificial intelligence.

Crane Hooks are highly liable components and are always subjected to failure due to the amount of stresses concentration which can eventually lead to its failure. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of ABAQUS software. Real time pattern of stress concentration in 3D model of crane hook is obtained. The stress d...

A 30-ton industrial bridge crane located at an aluminum sheet manufacturer has been equipped with a crane manipulation system enabling swing-free motion, disturbance rejection, and precise positioning. Previous investigations of anti-sway, positioning, and crane control have yielded important contributions in these areas. These advancements are combined into the unified crane manipulation syste...

Both the Siberian Crane (Leucogeranus leucogeranus) and Hooded Crane (Grus monacha) have limited population sizes and are considered endangered by domestic Chinese and international agencies. To document the current size of their respective populations and characterize their groups, between October 2012 and April 2013 we undertook fieldwork at four nature reserve areas within the Poyang Lake we...

In this paper, a study on the role of force feedback for teleoperation of industrial overhead crane is presented. Teleoperation of industrial crane was described and analyzed. We proposed several types of force feedback signals which can reduce sway motion in industrial crane. First, force feedback signal was selected and designed based on dynamic model of the system. Then, we simplified force ...

Standardisation of crane design procedures enables designers to develop their own crane automation software for crane design applications. Since main effort and time for implementation of the crane design procedures are generally spent for interpretation and explanation of the available crane design standards, a computer-automated access to the available standards may improve speed, reliability...

of a Suspended Load with a Robotic Crane Jae Y. Lew Ahmed Khalil Dept. of Mechanical Engineering Ohio University Athens, OH 45701 USA controlled velocity source which may not hold under a heavy load. In addition, it often requires an exact model of the overall system. This paper presents a feedback control algorithm for a robotic crane carrying a suspended load. The proposed controller suppress...

The sessile lifestyle of plants constrains their ability to acquire mobile nutrients such as nitrate. Whereas proliferation of roots might help in the longer term, nitrate-rich patches can shift rapidly with mass flow of water in the soil. A mechanism that allows roots to follow and capture this source of mobile nitrogen would be highly desirable. Here, we report that variation in nitrate conce...