Control Lever Connections (60° V Serrations)

1995 ◽  
Author(s):  
Keyword(s):  
Control Lever

BYOD Policies as a Negotiable Control Lever . . . or Not

2018 ◽  
Author(s):  
Keri K. Stephens
Keyword(s):  
Human Resources ◽  
Mobile Device ◽  
Labor Law ◽  
Consumer Products ◽  
Work Hours ◽  
Bring Your Own Device ◽  
Ongoing Debate ◽  
Global Challenges ◽  
Device Use ◽  
Control Lever

Enterprise consumerization describes how technologies purchased by “enterprises” (i.e., organizations or companies) became consumer products. Mobile devices fall into this category because, as they became more affordable, individuals purchased them and brought them to work. As this trend proliferated, organizations had to protect their proprietary data, but their employees were clamoring for access to Wi-Fi. Their response: create bring-your-own-device-to-work (BYOD) policies. This chapter discusses human resources and global challenges surrounding BYOD policies. There are labor-law concerns at play, as well as national declarations that restrict mobile-device use outside of work hours. Furthermore, there’s still ongoing debate concerning who should be “allowed” to participate in BYOD. Readers are invited to consider that these policies have introduced a form of free control: individuals have flexibility in choosing their devices, but that freedom is also how people voluntarily participate in being controlled by organizations.

scholarly journals An Interactive Haptic Guidance System for Intuitive Programming CNC Machine Tool

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3860
Author(s):  
Kamil Stateczny ◽  
Karol Miądlicki
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Experimental Validation ◽  
Guidance System ◽  
Cnc Machine Tools ◽  
Cnc Machine Tool ◽  
Haptic Guidance ◽  
Cnc Machine ◽  
Human Machine Interfaces ◽  
Control Lever

The human-machine interfaces in modern CNC machine tools are not very intuitive and still based on archaic input systems, i.e., switches, handwheels, and buttons. This type of solution has two major drawbacks. The pushed button activates the movement only in one direction and is insensitive to the amount of the force exerted by the operator, which makes it difficult to move the machine axes at variable speeds. The paper proposes a novel and intuitive system of manual programming of a CNC machine tool based on a control lever with strain-gauge sensors. The presented idea of manual programming is aimed at eliminating the need to create a machining program and at making it possible to move the machine intuitively, eliminating mistakes in selecting directions and speeds. The article describes the concept of the system and the principle of operation of the control levers with force sensors. The final part of the work presents the experimental validation of the proposed system and a functionality comparison with the traditional CNC control.

scholarly journals A novel throughput control algorithm for semi-heterarchical industry 4.0 architecture

2021 ◽  
Author(s):  
Silvestro Vespoli ◽  
Guido Guizzi ◽  
Elisa Gebennini ◽  
Andrea Grassi
Keyword(s):  
Production System ◽  
Industry 4.0 ◽  
Control Algorithm ◽  
Radical Change ◽  
Control Law ◽  
Primary Control ◽  
Response Strategies ◽  
Additional Control ◽  
Production Concept ◽  
Control Lever

AbstractModern market scenarios are imposing a radical change in the production concept, driving companies’ attention to customer satisfaction through increased product customization and quick response strategies to maintain competitiveness. At the same time, the growing development of Industry 4.0 technologies made possible the creation of new manufacturing paradigms in which an increased level of autonomy is one of the key concepts to consider. Taking the advantage from the recent development around the semi-heterarchical architecture, this work proposes a first model for the throughput control of a production system managed by such an architecture. A cascade control algorithm is proposed considering work-in-progress (WIP) as the primary control lever for achieving a specific throughput target. It is composed of an optimal control law based on an analytical model of the considered production system, and of a secondary proportional-integral-derivative controller capable of performing an additional control action that addresses the error raised by the theoretical model’s. The proposed throughput control algorithm has been tested in different simulated scenarios, and the results showed that the combination of the control actions made it possible to have continuous adjustment of the WIP of the controlled production system, maintaining it at the minimum value required to achieve the requested throughput with nearly zero errors.

Design of a linear electric actuator for an aircraft engine control lever

2021 ◽  
Author(s):  
Flyur R. Ismagilov ◽  
Viacheslav E. Vavilov ◽  
Aleksey A. Zherebtsov ◽  
Evgeniy O. Zharkov ◽  
Nikolay G. Tarasov ◽  
...  
Keyword(s):  
Aircraft Engine ◽  
Engine Control ◽  
Electric Actuator ◽  
Control Lever
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