Planar Friction Modelling with LuGre Dynamics and Limit Surfaces

Contact surfaces in planar motion exhibit a coupling between tangential and rotational friction forces. This paper proposes planar friction models grounded in the LuGre model and limit surface theory. First, distributed planar extended state models are proposed and the Elasto-Plastic model is extended for multi-dimensional friction. Subsequently, we derive a reduced planar friction model, coupled with a pre-calculated limit surface, that offers reduced computational cost. The limit surface approximation through an ellipsoid is discussed. The properties of the planar friction models are assessed in various simulations, demonstrating that the reduced planar friction model achieves comparable performance to the distributed model while exhibiting ~80 times lower computational cost

Moral emotions and ethics in organisations: introduction to the special issue

The aim of our special issue is to deepen our understanding of the role moral emotions play in organisations as part of a wider discourse on organisational ethics and morality. Unethical workplace behaviours can have far-reaching consequences—job losses, risks to life and health, psychological damage to individuals and groups, social injustice and exploitation and even environmental devastation. Consequently, determining how and why ethical transgressions occur with surprising regularity, despite the inhibiting influence of moral emotions, has considerable theoretical and practical significance to management scholars and managers alike. In this introduction, we present some of the core arguments in the field; notably, the effect of organisational life and bureaucracy on emotions, in general, and moral emotions, in particular; the moral standing of leaders, managers and followers; moral challenges raised by obedience and resistance to organisational power and ethical blindspots induced by what may appear as deeply moral emotions. These issues are explored by a collection of geographically diverse articles in various work contexts, which are thematically organised in terms of (i) moral emotions, ethical behaviour and social pressure, (ii) moral emotions and their consequences within/across levels of analysis, (iii) psychoanalytic perspectives on the management of moral emotions, (iv) virtue and moral emotions and (v) moral emotions and action tendencies. We end by suggesting certain avenues for future research in the hope that the endeavour initiated here will inspire improved practice at work. Keyword

Leadership in a post-truth era : a new narrative disorder?

This essay, and the speical issue it introduces, seeks to explore leadership in a post-truth age, focusing in particular on the types of narratives and counter-narratives that characterize it and at times dominate it. We first examine the factors that are often held responsible for the rise of post-truth in politics, including the rise of relativist and postmodernist ideas, dishonest leaders and bullshit artists, the digital revolution and social media, the 2008 economic crisis and collapse of public trust. We develop the idea that different historical periods are characterized by specific narrative ecologies, which, by analogy to natural ecologies, can be viewed as spaces where different types of narrative and counter-narrative emerge, interact, compete, adapt, develop and die. We single out some of the dominant narrative types that characterize post-truth narrative ecologies and highlight the ability of language to ‘do things with words’ that support both the production of ‘fake news’ and a type of narcissistic leadership that thrive in these narrative ecologies. We then examine more widely leadership in post-truth politics focusing on the resurgence of populist and demagogical types along with the narratives that have made these types highly effective in our times. These include nostalgic narratives idealizing a fictional past and conspiracy theories aimed at arousing fears about a dangerous future

Identity, choice and consumer freedom – the new opiates? A psychoanalytic interrogation

Psychoanalysis opens a variety of windows into understanding contemporary consumption and consumerism. The psychoanalytic theory of defence and the unconscious enables us to understand why commodities, from fast cars to luxury chocolate, so readily stand in to offer substitute gratification for deeper repressed desires and why the meaning of such commodities is liable to become mobile and unstable (Baudrillard, 1988 [1970]). The psychoanalytic concepts of narcissism (Freud, 1914) and the mirror stage (Lacan, 2006) provide powerful entry points into understanding our culture's obsession with image (Cluley and Dunne, 2012), whilst the theory of neurosis offers significant insights into the addictive and deeply irrational qualities of contemporary consumption (Lasch, 1980). Object relations theory (Winnicott, 1964) enables us to understand how material objects, from early childhood attachments to teddy bears, act as bridges between our sense of self and what we come to view as an external world deeply indifferent to our desires. Several other psychoanalytic concepts and ideas have proven particularly helpful in contemporary discourses on consumption. This essay draws its inspiration from Freud's theory of religion (Freud,1927, 1930) to test the view that the consumer's freedom to choose and construct an identity is an illusion in the technical sense - a fantasy that discloses deeper desires and offers substitute gratifications for the discontents inflicted on us by contemporary consumer culture. Like earlier illusions, the illusion of freedom and the derivative illusions of choice and identity may provide some consolation, but, arguably, then deepen the discontents for which they purport to offer comfort

Reflexivity and beyond – a plea for imagination in qualitative research methodology

Purpose – The purpose of this paper is to demonstrate that, important as reflexivity is, it does not constitute the gold standard of qualitative research. Instead the author makes a plea for the use of sociological imagination. Design/methodology/approach – The paper makes use of data from the ISI Web of Science database to demonstrate the increasing popularity of the concept of reflexivity. Findings – All researchers exercise reflexivity in as much as carrying out research alters both the subject and the object of the research. Conscious reflexivity enables researchers to question their assumptions and consequences of their work but does not guarantee high quality research. For this, creative imagination in recognizing the creative possibilities afforded by the data, are essential. Originality/value – Arguing against the emerging orthodoxy of qualitative research methodology, the original proposal of this paper lies in its plea to relax methodological strictures and judge the quality of research pragmatically in terms of its scientific value and social usefulness

Beyond Compassion: Replacing a Blame Culture With Proper Emotional Support and Management Comment on “Why and How Is Compassion Necessary to Provide Good Quality Healthcare?”

The absence of compassion, argues the author, is not the cause of healthcare failures but rather a symptom of deeper systemic failures. The clinical encounter arouses strong emotions of anxiety, fear, and anger in patients which are often projected onto the clinicians. Attempts to protect clinicians through various bureaucratic devices and depersonalization of the patient, constitute as Menzies noted in her classic work, social defences, aimed at containing the anxieties of clinicians but ending up in reinforcing these anxieties. Instead of placing additional burdens on clinicians by bureaucratizing and benchmarking compassion, the author argues that proper emotional management and support is a precondition for a healthcare system that offers humane and effective treatment to patients and a humane working environment for those who work in it

So much choice and no choice at all: a socio-psychoanalytic interpretation of consumerism as a source of pollution

Psychoanalytic concepts and theory have long served studies of consumption, from exposing unconscious motives to elucidating contemporary consuming desire. Sharing with psychoanalysis an interest in symbolic meanings, anthropological approaches have also contributed to the study of contemporary consumption and social life. In this article, we draw on both Freudian psychoanalysis and Douglas’s structural anthropology to examine the field of non-consumption or the ‘choice’ not to buy. Based on detailed interpretations of interview data, we argue that consuming less at the individual level is not always the result of purposeful acts of ideological, anti-consumption protest or the outward expression of countercultural sentiments. Rather, forms of non-consumption can have deeper psychological origins that are located in a view of consumerism as a threatening force and a potent source of toxic contamination to mind and body, ‘dirt’ in Douglas’s conceptualization. We argue that this outlook prompts a constant vigilance and the deployment of different defensive measures, prohibitions and purification rituals akin to Freud’s conceptualization of the obsessive–compulsive individual. In this way, our analysis seeks to illuminate the myriad of largely invisible ways in which some people ‘choose’ not to buy within an ostensibly consumer culture or dismiss the idea of such a choice altogether

Organizations and history – Are there any lessons to be learned from genocide?

open access articleThe authors argue that genocide is not a phenomenon marginal to the world of management and organizations, but one from which these disciplines stand to learn a lot and one to which they must contribute their own insights. Genocide is a highly organized process, requiring bureaucratic resources to initiate, sustain and, often, cover it up. It generates resistance and compliance, it makes use of material and social technologies, it is imbued with its own cultural values and assumptions and calls for its own morbid innovations and problem-solving. Genocide requires the collaboration of numerous formal organizations, including armies, suppliers, intelligence and other services, but also informal networks and groups. At the same time, the authors argue that genocide cannot be studied outside historiography and that doing so leads to all kinds of gravely mistaken conclusions, even when theorised by distinguished scholars like Arendt and Bauman