Results 91 to 100 of about 20,619 (262)

Research on the Influence of Backlash on Mesh Stiffness and the Nonlinear Dynamics of Spur Gears

open access: yesApplied Sciences, 2019
In light of ignoring the effect of backlash on mesh stiffness in existing gear dynamic theory, a precise profile equation was established based on the generating processing principle. An improved potential energy method was proposed to calculate the mesh
Yangshou Xiong   +5 more
doaj   +1 more source

Non-linear dynamic analysis of geared systems, part 2 [PDF]

open access: yes
A good understanding of the steady state dynamic behavior of a geared system is required in order to design reliable and quiet transmissions. This study focuses on a system containing a spur gear pair with backlash and periodically time-varying mesh ...
Houser, Donald R.   +2 more
core   +1 more source

Size‐selective mortality evolutionarily alters collective behaviour in response to predation risk in a zebrafish (Danio rerio) harvest‐induced selection model

open access: yesJournal of Fish Biology, EarlyView.
Abstract Intensive multigenerational size‐selective mortality has been found to alter collective properties like shoaling via evolutionary adaptations of individual‐level behavioural traits. For example, experimental populations of zebrafish (Danio rerio) experiencing intensive large size‐selective mortality over multiple generations developed less ...
Tamal Roy   +2 more
wiley   +1 more source

Dimensional Chain and Dynamics Analysis of the Gear System with Backlash based on CETOL

open access: yesJixie chuandong, 2015
By using the 3- Dimension tolerance analysis software CETOL 6σ,taking the gear backlash in the gear system as closed- loop,considering the actual assembly sequence and the standard normal distribution of the processing size of each part,the 3D dimension ...
Sun Tao, Cheng Yaqiang
doaj  

Stigma Management within and between Levels

open access: yesJournal of Management Studies, EarlyView.
Abstract We respond to recent calls to connect our understanding of stigma across and between levels of analysis by investigating how stigma management strategies to the same stigma vary and relate in nested industry, organizational, and individual actors.
Rebecca Mitchell   +3 more
wiley   +1 more source

Split torque transmission load sharing [PDF]

open access: yes
Split torque transmissions are attractive alternatives to conventional planetary designs for helicopter transmissions. The split torque designs can offer lighter weight and fewer parts but have not been used extensively for lack of experience, especially
Kish, J. G., Krantz, T. L., Rashidi, M.
core   +1 more source

The linear boom actuator designed for the Galileo spacecraft [PDF]

open access: yes, 1983
Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core   +1 more source

How Alternative Management Ideas Are Realized for the Public Good: Performative Fabrics of Humanistic Practices

open access: yesJournal of Management Studies, EarlyView.
Abstract Repurposing management for the public good involves realizing alternative ideas to serve societal interests. Humanistic management is centred on such ideas as human dignity and well‐being. Realization refers to the generation and maintenance of social realities corresponding to these ideas.
Oliver Laasch   +4 more
wiley   +1 more source

Tracking Control and Backlash Compensation in an Inverted Pendulum with Switched-Mode PID Controllers

open access: yesApplied Sciences
In electromechanical systems, backlash in gear trains can lead to a degradation in control performance. We propose a drive–anti-drive mechanism to address this issue. It consists of two DC motors that operate in opposite directions. One motor acts as the
Aisha Akbar Awan   +3 more
doaj   +1 more source

Motion stabilization in the presence of friction and backlash: a hybrid system approach [PDF]

open access: yes, 2008
In this paper a hybrid system approach is considered to deal with backlash and friction induced nonlinearities in mechanical control systems. To describe the low velocity frictional behaviour a linearized friction model is proposed. The novelty of this
Lantos, Béla, Márton, Lőrinc
core  

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