Academic literature on the topic 'Standing to blame'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Standing to blame.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Standing to blame"
1
McKiernan, Amy L. "Standing Conditions and Blame." Southwest Philosophy Review 32, no. 1 (2016): 145–51. http://dx.doi.org/10.5840/swphilreview201632115.
Full text
2
Roadevin, Cristina. "Hypocritical Blame, Fairness, and Standing." Metaphilosophy 49, no. 1-2 (January 2018): 137–52. http://dx.doi.org/10.1111/meta.12281.
Full text
3
King, Matt. "Manipulation Arguments and the Standing to Blame." Journal of Ethics and Social Philosophy 9, no. 1 (June 5, 2017): 1–21. http://dx.doi.org/10.26556/jesp.v9i1.87.
Full textAbstract:
The majority of recent work on the moral standing to blame (the idea that A may be unable to legitimately blame B despite B being blameworthy) has focused on blamers who themselves are blameworthy. This is unfortunate, for there is much to learn about the standing to blame once we consider a broader range of cases. Doing so reveals that challenged standing is more expansive than previously acknowledged, and accounts that have privileged the fact that the blamers are themselves morally culpable likely require revision. One such account figures in Patrick Todd’s (2012) argument for incompatibilism, which ostensibly depends on considerations involving the standing to blame. I believe this argument fails. But its failure is instructive, for it allows us to appreciate the numerous ways in which one’s blame can be morally problematic, and hence ways in which one’s standing to blame can be challenged. Thus, while one objective of this paper is to show why Todd’s argument fails, the larger aim is to use that argument to frame discussion of some important (and novel) ways in which the standing to blame can be compromised.
4
Fritz, Kyle G., and Daniel Miller. "Hypocrisy and the Standing to Blame." Pacific Philosophical Quarterly 99, no. 1 (September 24, 2015): 118–39. http://dx.doi.org/10.1111/papq.12104.
Full text
5
Todd, Patrick, and Brian Rabern. "The Paradox of Self-Blame." American Philosophical Quarterly 59, no. 2 (April 1, 2022): 111–25. http://dx.doi.org/10.5406/21521123.59.2.01.
Full textAbstract:
Abstract It is widely accepted that there is what has been called a non-hypocrisy norm on the appropriateness of moral blame; roughly, one has standing to blame only if one is not guilty of the very offence one seeks to criticize. Our acceptance of this norm is embodied in the common retort to criticism, “Who are you to blame me?” But there is a paradox lurking behind this commonplace norm. If it is always inappropriate for x to blame y for a wrong that x has committed, then all cases in which x blames x (i.e., cases of self-blame) are rendered inappropriate. But it seems to be ethical common-sense that we are often, sadly, in position (indeed, excellent, privileged position) to blame ourselves for our own moral failings. And thus, we have a paradox: a conflict between the inappropriateness of hypocritical blame, and the appropriateness of self-blame. We consider several ways of resolving the paradox and contend none is as defensible as a position that simply accepts it: we should never blame ourselves. In defending this starting position, we defend a crucial distinction between self-blame and guilt.
6
Beade, Gustavo A. "Who Can Blame Whom? Moral Standing to Blame and Punish Deprived Citizens." Criminal Law and Philosophy 13, no. 2 (May 30, 2018): 271–81. http://dx.doi.org/10.1007/s11572-018-9471-z.
Full text
7
Todd, Patrick. "Does God Have the Moral Standing to Blame?" Faith and Philosophy 35, no. 1 (2018): 33–55. http://dx.doi.org/10.5840/faithphil201811796.
Full text
8
Engen, Andy. "Punishing the Oppressed and the Standing to Blame." Res Philosophica 97, no. 2 (2020): 271–95. http://dx.doi.org/10.11612/resphil.1842.
Full text
9
Piovarchy, Adam. "Hypocrisy, Standing to Blame and Second‐Personal Authority." Pacific Philosophical Quarterly 101, no. 4 (July 30, 2020): 603–27. http://dx.doi.org/10.1111/papq.12318.
Full text
10
Dadlez, E. M. "Comment on “Standing Conditions and Blame” by Amy McKiernan." Southwest Philosophy Review 32, no. 2 (2016): 49–52. http://dx.doi.org/10.5840/swphilreview201632235.
Full textDissertations / Theses on the topic "Standing to blame"
1
Phillips, Henry Littleton. "To Blame or Not to Blame: Respect, Fittingness, and Standing." Thesis, 2022. https://hdl.handle.net/2440/135934.
Full textAbstract:
Much of our moral life happens after things go wrong. When we wrong someone or are wronged ourselves, at least sometimes, it will be appropriate for us to blame and be blamed. Often, when asking whether we should blame someone, or whether our blame is appropriate, we only need to ask questions about the object of blame. That is, we only need to ask whether that person is blameworthy. However, there are some cases where this is not enough. For example, sometimes blame seems inappropriate because the blamer is hypocritical, even though the object of their blame is blameworthy. When this happens, we often say that the blamer lacks the standing to blame. However, it is hard to pin down what we mean by this. This is not helped by the fact that there are two further questions we can ask when talking about standing to blame. First, in which substantive cases does someone have or lack the standing to blame? Second, what is the property they possess when they have the standing to blame? Call the first the Substantive Question about standing to blame, and the second the Property Question about standing to blame. In this thesis, I hope to provide a novel answer to both of these questions. To answer the Substantive Question, I argue that we lack standing to blame when we are hypocritical or not relevantly involved in the wrongdoing. To answer the Property Question, I argue that what goes wrong when someone lacks the standing to blame is that their blame is unfitting because of certain facts about them. There have been several attempts to capture this thought. However, none have been able to distinguish between the different ways blame can be inappropriate. I aim to give a plausible solution to this problem by appealing to recent work done on the fittingness relation. I argue that this relation holds between three relata: an object, a response, and a responder. Sometimes there is a restriction on who can occupy the responder-place. The relation between blamer, blame, and the blameworthy is clearly an instance of the fittingness relation. Therefore, we can claim that talk of standing to blame is just talk about whether someone can appropriately occupy the responder-place. When they can, we say that they have the standing to blame. When they cannot, we say that they lack it.Thesis (MPhil) -- University of Adelaide, School of Humanities: Philosophy, 2022
Books on the topic "Standing to blame"
1
Shoemaker, David, ed. Oxford Studies in Agency and Responsibility Volume 6. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198845539.001.0001.
Full textAbstract:
This is the sixth volume of Oxford Studies in Agency and Responsibility. The papers were drawn from the fourth biennial New Orleans Workshop in Agency and Responsibility (NOWAR), held November 2–4, 2017. The essays cover a wide range of topics relevant to agency and responsibility: the threat of neuroscience to free will; the relevance of resentment and guilt to responsibility; how control and self-control pertain to moral agency, oppression, and poverty; responsibility for joint agency; the role and conditions of shame in theories of attributability; how one might take responsibility without blameworthy quality of will; what it means to have standing to blame others; the relevance of moral testimony to moral responsibility; how to build a theory of attributabiity that captures all the relevant cases; and how thinking about blame better enables us to dissolve a dispute in moral philosophy between actualists and possibilists.
2
Talbert, Matthew, and Jessica Wolfendale. War Crimes. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190675875.001.0001.
Full textAbstract:
In 2005, US Marines killed 24 unarmed Iraqi civilians in the town of Haditha. How should we assess the perpetrators of this and other war crimes? Is it unfair to blame the Marines because they were subject to situational pressures such as combat stress? Or should they be held responsible for their actions, since they intentionally chose to kill civilians? In this book, we take up these questions and propose a provocative theory of the causes of war crimes and the responsibility of perpetrators. In the first half of the book, we criticize accounts that explain war crimes by reference to external situational pressures, such as peer pressure, combat stress, and propaganda. We develop an alternative theory of war crimes that explains how military personnel make sense of their participation in war crimes through the lens of their self-conceptions, goals, and values. In the second half of the book, we reject theories of responsibility that excuse perpetrators on the grounds that situational pressures often lead them to believe that their behavior is permissible. Such theories are, we contend, unacceptably exculpating and imply that it’s unreasonable for victims of war crimes to blame their attackers. In contrast, we argue that perpetrators of war crimes may be blameworthy if their actions express objectionable attitudes toward their victims, even if they sincerely believe that what they are doing is right. In addition, we show that the demand that victims of war crimes forego blame fails to show sufficient regard for their moral standing.
3
Sher, George. Me, You, Us. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190660413.001.0001.
Full textAbstract:
Me, You, Us is a collection of essays that explore the tension between the privacy of our experience and the social nature of our public lives. The book’s chapters address a diverse array of topics in moral and political philosophy but are unified by their strongly individualistic perspective and approach. Although the chapters acknowledge the profound importance of our relations to others, they treat these relations as normatively less basic than the fact that each of us occupies a subjectivity that no one else can enter and in the absence of which nothing that happened to us would matter. The several topics discussed from this perspective include, among others, the nature and basis of our moral standing, the social and communicative aspects of blame, the rationality of acting on judgments that equally smart and well-informed people do not share, and the importance of avoiding hierarchy and domination in our political arrangements.
4
Freedman, Linda. Romanticism after Auschwitz. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198813279.003.0010.
Full textAbstract:
Saul Bellow’s interest in Blake provides a counterpoint to Blake’s standing in psychedelic counterculture. Bellow despised what he perceived to be the thoughtless sham Romanticism of contemporary youth. For Bellow, as for Blake, imaginative thought was the quintessential moral force in the fight against totalitarianism because it was the sign of the ‘real Man’, the creative individual whose mind is always active. The Blake that Bellow admired was not a mystic who turned away from the world in favour of ecstatic experience but a thoughtful philosopher of freedom. From Henderson (1959) through Sammler (1970) to his most overt expression of Romantic possibility in Humboldt’s Gift (1975), Bellow used Blake to frame, articulate, and explore the redemptive possibilities of Romantic vision.
5
Deuel, Lu, and Paul Gore. World Standing on Its Head: Or Blake the Ninja and the down-Under Roo. Independently Published, 2020.
Find full text
6
Heath, Anthony F., Elisabeth Garratt, Ridhi Kashyap, Yaojun Li, and Lindsay Richards. The Challenge of Social Corrosion. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805489.003.0008.
Full textAbstract:
Has increasing inequality and ethnic diversity served to corrode social cohesion in Britain? The evidence discussed in this chapter suggests that in many respects, such as levels of national pride, social trust, and civic engagement, Britain has not in fact changed all that much since the 1950s and 1960s. Nor is Britain all that out of line with peer countries. However, there are long-standing problems of social division, low trust, and disconnection from politics, albeit sometimes taking new forms. In some respects, then, Britain is not all that cohesive. Moreover, there are some new emerging challenges such as declining election turnout, especially among young people, and declining sense of British identity in Ireland and Scotland. However, these emerging challenges cannot be blamed on inequality and diversity. Instead, the explanations, and the solutions, are more likely to be specific and political.
7
Spencer, Danielle. Metagnosis. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197510766.001.0001.
Full textAbstract:
This book identifies and names the phenomenon of metagnosis: the experience of newly learning in adulthood of a long-standing condition. It can occur when the condition has remained undetected (e.g., colorblindness) and/or when the diagnostic categories themselves have shifted (e.g., ADHD). More broadly, it can occur with unexpected revelations bearing upon selfhood, such as surprising genetic test results. This phenomenon has received relatively scant attention, yet learning of an unknown condition is frequently a significant and bewildering revelation, subverting narrative expectations and customary categories. In addressing the topic this book deploys an evolution of narrative medicine as a robust research methodology comprising interdisciplinarity, narrative attentiveness, and creating a writerly text. Beginning with the author’s own experience of metagnosis, it explores the issues it raises—from communicability to narrative intelligibility to different ways of seeing. Next, it traces the distinctive metagnostic narrative arc through the stages of recognition, subversion, and renegotiation, discussing this trajectory in light of a range of metagnostic experiences, from Blade Runner to real-world midlife diagnoses. Finally, it situates metagnosis in relation to genetic revelations and the broader discourses concerning identity. Proposing that the figure of blindsight—drawn from the author’s metagnostic experience—offers a productive model for negotiating such revelations, the book suggests that better understanding metagnosis will not simply aid those directly affected but will also serve as a bellwether for how we will all navigate advancing biomedical and genomic knowledge, and how we may fruitfully interrogate the very notion of identity.
Book chapters on the topic "Standing to blame"
1
Watson, Gary. "Standing in Judgment." In Blame, 282–302. Oxford University Press, 2012. http://dx.doi.org/10.1093/acprof:oso/9780199860821.003.0015.
Full text
2
Bell, Macalester. "The Standing to Blame: A Critique." In Blame, 263–81. Oxford University Press, 2012. http://dx.doi.org/10.1093/acprof:oso/9780199860821.003.0014.
Full text
3
King, Matt. "Skepticism about the Standing to Blame." In Oxford Studies in Agency and Responsibility Volume 6, 265–88. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198845539.003.0011.
Full textAbstract:
There are cases thought to illustrate that appropriate blame requires special standing. One might lack the standing to blame another because the fault is private and one is a stranger or because one is guilty of the very same offense and so one’s blame would be hypocritical. But despite its prevalence as an explanation of what goes wrong in such cases, the standing to blame itself has been given relatively little attention. The aim of this paper is to cast doubt on the standing to blame. It considers a range of plausible interpretations and, finding each wanting, concludes that those who wish to endorse the standing to blame owe us more by way of a characterization and defense. In raising this challenge, the paper motivates an alternative explanation of the cases.
4
Björnsson, Gunnar. "Blame, Deserved Guilt, and Harms to Standing." In Self-Blame and Moral Responsibility, 198–216. Cambridge University Press, 2022. http://dx.doi.org/10.1017/9781009179263.011.
Full text
5
Tanesini, Alessandra. "Wrongs, Responsibility, Blame, and Oppression." In The Mismeasure of the Self, 168–92. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198858836.003.0008.
Full textAbstract:
This chapter addresses the question of moral and epistemic responsibility for intellectual vices and the beliefs that stem from them. It distinguishes three aspects of responsibility: accountability, answerability, and attributability. It argues that people are accountable but not fully answerable for their intellectual vices that are also attributable to them. Nevertheless, the chapter also cautions against blaming (in the sense of resenting) those who are blameworthy because one might lack the standing required to blame others. The chapter concludes with a discussion of the importance of taking responsibility for oneself and the importance for self-respect of adopting this stance.
6
Matheson, Benjamin, and Per-Erik Milam. "The Case against Non-Moral Blame." In Oxford Studies in Normative Ethics Volume 11, 199–222. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780192856913.003.0011.
Full textAbstract:
Non-moral blame seems to be widespread and widely accepted in everyday life—tolerated at least, but often embraced. We blame athletes for poor performance, artists for bad or boring art, scientists for faulty research, and voters for flawed reasoning. This chapter argues that non-moral blame is never justified, that is, it’s never a morally permissible response to a non-moral failure. Having explained what blame is and how non-moral blame differs from moral blame, the chapter presents the argument in four steps. First, it argues that many (perhaps most) apparent cases of non-moral blame are actually cases of moral blame. Second, it argues that even if non-moral blame is pro tanto permissible—because its target is blameworthy for their substandard performance—it often (perhaps usually) fails to meet other permissibility conditions, such as fairness or standing. Third, it goes further and challenges the claim that non-moral blame is ever even pro tanto permissible. Finally, it considers a number of arguments in support of non-moral obligations and argues that none of them succeeds.
7
Shoemaker, David. "Introduction to OSAR 6." In Oxford Studies in Agency and Responsibility Volume 6, 1–6. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198845539.003.0012.
Full textAbstract:
This introduction to the sixth volume of Oxford Studies in Agency and Responsibility briefly discusses each of the new essays being published. They were drawn from the fourth biennial New Orleans Workshop in Agency and Responsibility (NOWAR), held November 2–4, 2017. The essays cover a wide range of topics relevant to agency and responsibility: the threat of neuroscience to free will; the relevance of moral emotions like shame, resentment, and guilt to responsibility; how control and self-control pertain to moral agency, oppression, and poverty; responsibility for joint agency; how one might take responsibility without blameworthy quality of will; what it means to have standing to blame others; the relevance of moral testimony to moral responsibility; and how thinking about blame better enables us to dissolve a dispute in moral philosophy between actualists and possibilists.
8
Hardy, Mark. "Claim, blame, shame: how risk undermines authenticity in social work." In Shame and Social Work, 163–86. Policy Press, 2020. http://dx.doi.org/10.1332/policypress/9781447344063.003.0009.
Full textAbstract:
Mark Hardy, author of this chapter, argues that the highly charged context in which practice occurs means that because of unrealistic expectations of infallibility social work decision-making has taken on an existential character. He elaborates on why this is so, accounting for how risk, blame and shame intersect both practically and emotionally, as well as the value of existential thinking in enabling practitioners to preserve the authenticity of their practice. Social workers themselves practice in a risk-averse climate, very much aware that ‘poor judgement’ can and does lead to disciplinary action, with all that this entails in terms of professional repute, social standing and continued employment. The author suggests some potential responses to questions regarding how practitioners might cope with the expectations organisations and service users have of them.
9
de Waal, Alex. "Truth, Memory, and Starvation." In Accountability for Mass Starvation, 379—C15.N39. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192864734.003.0015.
Full textAbstract:
Abstract This chapter examines the neglected agenda of transitional justice mechanisms for the victims and survivors of mass starvation. It focuses on the commemoration of famine, opening with the observation that silence commonly shrouds the memory. One reason for this, the chapter argues, is the sense of shame, loss of dignity, and self-blame felt by the survivors. During times of the utmost deprivation, death, life, and dignity depend on the tiniest increments of resources and standing among the dispossessed and destitute. Victims are often forced into terrible decisions: who will eat today? With perpetrators often distant from the scene, many victims blame themselves for the hardships they suffered and the micro-deprivations they end up perpetrating against others. For these reasons, famine is particularly demoralizing and memories are suppressed. This has too often allowed the deliberate perpetration of starvation crimes to remain unrecognized or fade away in time. This chapter discusses efforts to memorialize past instances of mass starvation, with notable examples of the Great Irish Famine and Ukraine, and the role that memorialization might play in honouring victims and changing the narrative for today’s famines. It concludes with the insight that criminalizing starvation serves the vital purpose of emancipating victims, survivors, and their descendants from a sense of shame and failure, dignifying them as victims of a crime.
10
Engel, Stephen M., and Timothy S. Lyle. "Fucking with Dignity." In Disrupting Dignity, 29–62. NYU Press, 2021. http://dx.doi.org/10.18574/nyu/9781479852031.003.0002.
Full textAbstract:
Chapter 1 discusses how authorities in San Francisco and New York City pursued the closure of gay bathhouses during the HIV/AIDS crisis. Within this particular episode of queer history and public health policy, the rhetoric of dignity proves to be at its most seductive. During the early years of the crisis—a vulnerable time of uncertainty, increasing death tolls, and community activism in response—state authorities explicitly dehumanized, infantilized, and abandoned gay men, creating a narrative of blame for supposedly undignified behavior. State authorities issued an ultimatum to queer men: be dignified or suffer death. Death became the consequence of undignified choice. To illustrate this state position, chapter 1 discusses how bathhouse closures were part of a larger anti-gay and anti-HIV politico-cultural discourse that denied the dignity of men who have sex with other men. In other words, the state began to reach beyond the long-standing criminalization of same-sex intimacy and started to do intentional generative work to dehumanize and infantilize queer communities.
Conference papers on the topic "Standing to blame"
1
Bachschmid, Nicolò, Emanuel Pesatori, Simone Bistolfi, and Massimiliano Sanvito. "Building Up Suitable Contact Forces in Integrally Shrouded Blade Rows for Reducing Vibration Amplitudes." In ASME 2013 Turbine Blade Tip Symposium. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/tbts2013-2005.
Full textAbstract:
The beneficial effects of the contact between shrouds are described extensively in recent literature: natural blade frequencies are increased and additional damping is available. Different models are proposed for analyzing its linear and nonlinear behavior, selection of optimum contact forces are proposed for reducing vibration amplitudes to a minimum. Results from different non linear analyses that use different models all based generally on a reduced modal model of the blade row and on the harmonic balance approach for modeling the non linear contact forces, are sometimes contradictory: some claim e.g. that increasing excitation amplitude leads to a reduction of the dynamic magnification factor (due to friction damping increase) some other claim the opposite. The contribution to this topic of the present paper is the analysis of the effect of a “contact shim” which can be inserted in a cavity between adjacent shrouds. The shim generates suitable contact forces between the shrouds of the blades of a row, which without shim would vibrate as free standing blades.
2
Allen, J. M. "Friction Damping in Compressor Blade Dovetail Attachments." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-137.
Full textAbstract:
An empirical model is presented for predicting the fundamental mode resonant response of friction damped, free standing compressor blades from the cyclic slip that can occur in its dovetail attachment. The model is an extension of the conventional approach in that it includes the microslip regime of slip by assuming that the tangential force coefficient (tangential force to normal force ratio when slip occurs) depends on the magnitude of slip but, like friction coefficient, is independent of normal force. Experimental data obtained from bench damping tests are presented relating these quantities for plain and coated [copper-nickel indium (Cu-Ni-In) plus molydisulphide (MoS2)] dovetail attachments. The results demonstrate that substantial friction damping can be obtained at low compressor speeds, where aerodynamic excitation is often most severe, and that such damping is dominated by the microslip properties of the dovetail interface. The dovetail coating significantly increased friction damping and proved to be durable in an endurance test, as it has in service.
3
Turner, Kevin, Maurice Adams, and Michael Dunn. "Simulation of Engine Blade Tip-Rub Induced Vibration." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68217.
Full textAbstract:
An analysis has been developed to simulate the time-transient vibratory motion of a general configuration engine turbomachinery free-standing blade when subjected to in-service blade-on-casing tip-rub events. The analysis imports the at-speed stress-stiffened blade stiffness matrix and lumped mass matrix from a finite element model of the actual blade. Formulation and computational approaches are presented. Correct characterization of the blade tip-surface rub mechanics tribology models necessitates using empirical information that is currently being acquired from single-blade spin-pit tests now in progress in a parallel companion phase of this research. Output results for validation cases are presented. The analysis efficiently simulates complete transients involving multiple successive incursions (blade on casing hits), tracking the blade tip contact force distribution and blade motion throughout the simulated time frame including blade motion during, between and after successive casing hits.
4
Selcan, C., B. Cukurel, and J. Shashank. "Heat Transfer Implications of Acoustic Resonances in HP Turbine Blade Internal Cooling Channels." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43142.
Full textAbstract:
In an attempt to investigate the acoustic resonance effect of serpentine passages on internal convection heat transfer, the present work examines a typical high pressure turbine blade internal cooling system, based on the geometry of the NASA E3 engine. In order to identify the associated dominant acoustic characteristics, a numerical FEM simulation (two-step frequency domain analysis) is conducted to solve the Helmholtz equation with and without source terms. Mode shapes of the relevant identified eigenfrequencies (in the 0–20kHz range) are studied with respect to induced standing sound wave patterns and the local node/antinode distributions. It is observed that despite the complexity of engine geometries, as a first order approximation, the predominant resonance behavior can be modeled by a same-ended straight duct. Therefore, capturing the physics observed in a generic geometry, the heat transfer ramifications are experimentally investigated in a scaled wind tunnel facility at a representative resonance condition. Focusing on the straight cooling channel’s longitudinal eigenmode in the presence of an isolated rib element, the impact of standing sound waves on convective heat transfer and aerodynamic losses are demonstrated by liquid crystal thermometry, local static pressure and sound level measurements. The findings indicate a pronounced heat transfer influence in the rib wake separation region, without a higher pressure drop penalty. This highlights the potential of modulating the aero-thermal performance of the system via acoustic resonance mode excitations.
5
Chen, Y. N., D. Hagelstein, U. Haupt, and M. Rautenberg. "Excitation Mechanism for Standing Stall of Centrifugal Compressors." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-245.
Full textAbstract:
The standing stall of the centrifugal compressors appears with pulsating or switching pattern at operating points slightly away from the stall line. It is a weak form of the rotating stall and stands still in the absolute frame. The reverse flow of the compressed warm fluid travelling from the impeller’s outlet along the shroud surface towards the inlet is not yet powerful enough to generate rotating stall. The experimental investigations revealed that in the low-flow-rate off-design region, the inlet flow to the impeller has a large positive incidence angle. Nose bubbles are formed on the suction surface of the blade after the leading edge. Once the reverse flow as a pressure wave reaches the inlet of the blades, the nose bubble is stagnated to an enlarged size. The corresponding disturbance sends a rarefaction wave in the forward direction into the impeller. This wave of cool fluid meets the reverse pressure wave of the warm fluid at a circular front around the circumference of the impeller. Since this circular front has a weak baroclinicity, it cannot develop into Rossby waves which initiate the rotating stall. Instead it will either pulsate concentrically or switch linearly. We then experience a standing stall with the corresponding pattern.
6
Nagarajaiah, Vinayaka, Nilotpal Banerjee, B. S. Ajay Kumar, and Kumar K. Gowda. "Aero Structure Interaction for Mechanical Integration of Laced LP Compressor Blades in a Gas Engine Rotor." In ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/power2016-59319.
Full textAbstract:
Aero-structure interaction during turbomachinery blade design has become an important area of research due to its critical applications in aero engines and land based gas turbines. Studies reveal that a certain mistuning leads to stress build up through mode localization under operating conditions. This paper deals with comparative case studies of aero-structure interaction for free standing and various laced LP blade configurations of a gas turbine. The lacing wire provides better structural integrity as it is more aerodynamic and feasible when compared to cases of free standing blades without lacing wires. Hence calling for the optimum positioning checks at ¼th, ½, ¾th and combined positioning at ¼th and ¾th along the length of LP compressor blades. The lacing wire of both circular and elliptical cross sections are considered for comparative study for better aerodynamic performance. Assuming 100% fixity at blade root, the study involves critical parametric evaluations involved in achieving mechanical integrity in airfoil design and blade platform design. Mechanical integrity involves stress checks, frequency margins, Campbell Diagram, gross yield stress, Stress Stiffening and Spin Softening of blades and so on, for design and off-design conditions for a given stage efficiency of 93% in an ideal LP compressor of a gas turbine engine.
7
Strehlau, Ulrik, and Arnold Ku¨hhorn. "Experimental and Numerical Investigations of HPC Blisks With a Focus on Travelling Waves." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22463.
Full textAbstract:
The motivation for the usage and a further development of blade integrated disk (blisk) technology is driven by a rising demand for efficient, economical and environment-friendly aero engines. In contrast to conventional bladed disks with separated blade and disk design, blisks are either manufactured from solid or disk and blades are assembled by friction welding. Due to an optimized stress distribution, the integrated design leads to potentially higher maximum rotational speeds of the HP-shaft and thus to an improved pressure ratio. This fact offers the opportunity to reduce the number of blades or even to save whole compressor stages. In order that a significant mass-reduction is achieved, which is increased since heavy blade-disk connections of the conventional design are not necessary anymore. Apart from the advantages of the integrated design, the vibration behaviour of a real blisk is more sophisticated compared to the conventional bladed disk design. Due to the very low mechanical damping, effects like mode-localization and amplitude magnification can lead to high cycle fatigue problems of such complex structures. Extensive experimental and numerical investigations are carried out considering a real rotor-stage 1 blisk of the Rolls-Royce E3E/1 demonstrator-HPC. In order to identify “blade individual frequencies” and “blade individual damping”- values, a new patented blade by blade measurement method is used, that provides FRFs characterized by an unique resonance, as known from SDOF-systems. Based on the adjusted FE-model, numerical and experimental investigations of the vibration behaviour in the frequency range of splitted double eigenvalues are carried out. In doing so the expressions “travelling wave” and “standing waves” are commonly used to characterize the eigenmodes and forced modes of vibration respectively. The splitting of eigenvalues could be proved and a novel criterion to distinguish travelling and standing waves is introduced.
8
Kaneko, Yasutomo, Kazushi Mori, and Hiroharu Ooyama. "Practical Optimization of Mistuned Bladed Disk of Steam Turbine With Free-Standing Blade Structure for Forced and Self-Excited Vibration." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75056.
Full textAbstract:
Although bladed disks are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of all the blades on a disk are slightly different due to the manufacturing tolerance, deviations in the material properties, and wear during operation. These small variations break the cyclic symmetry and split the eigenvalue pairs. Bladed disks with small variations are referred to as a mistuned system. Many researchers suggest that while mistuning has an undesirable effect on the forced response, it has a beneficial (stabilizing) effect on blade flutter (the self-excited vibration). Therefore, it is necessary to optimize a bladed disk for forced vibration and blade flutter. In this study, firstly, the stability analysis of a mistuned bladed disk of a steam turbine that experienced the blade flutter in the field is carried out by use of the reduced order model, the Fundamental Mistuning Model. It is reported that the bladed disk analyzed failed due to unstalled flutter of the 1st mode, and the problem was solved by alternating mistuning. By comparing the analysis results with these field experiences, the analysis method is validated. Secondly, a parametric study on the mistuning effect is carried out for typical mistuning patterns, such as periodic and random mistuning, for both forced and self-excited vibrations. Finally, based on the above-mentioned results, a practical optimization method considering both forced vibration and self-excited vibration with respect to the bladed disk of a steam turbine with a free-standing blade structure is proposed.
9
Kaneko, Yasutomo, Toshio Watanabe, and Tatsuya Furukawa. "Study on the Reduction of the Resonant Stress of Turbine Blades Caused by the Stage Interaction Force (Simultaneous Optimization of Blade Resonant Stress and Amount of Unbalance)." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14031.
Full textAbstract:
Abstract Although the bladed disks of turbomachinery are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of individual blades on a disk vary slightly owing to manufacturing tolerances, deviations in material properties, wear during operation, etc. These small variations break the cyclic symmetry and split eigenvalue pairs. Actual bladed disks with small variations are called mistuned systems. The resonant stress on a mistuned bladed disk may become large and cause a blade failure due to high cycle fatigue (HCF). Especially for a bladed disk with a free-standing blade structure, it is essential to use a sufficiently large safety factor at the design stage, considering the mistuning effect. Traditionally, blade designers have adopted various countermeasures to reduce the resonant stress at the design stage. Besides the countermeasures adopted in blade design, for a variable speed engine, which cannot avoid resonance, it is thought that a practical optimization method for a mistuned system (bladed disk with a free-standing blade structure) is to sort the blades so that the resonant stress is minimized. In this study, a simultaneous method for optimizing the blade resonant stress and the amount of unbalance causing rotor vibration is proposed. In this method, first, the natural frequencies and weights of all blades on a disk are measured. Then, a mistuned system is assembled and the analysis model is generated. Next, the resonant stress and the amount of unbalance in the mistuned system are analyzed. To reduce the computation time, the reduced-order model known as fundamental mistuning model (FMM) is used to calculate the resonant stress in the mistuned system. The analyses of the resonant stress and the amount of unbalance are carried out repeatedly, sorting the blades on the disk, and the optimal solution is explored using Monte Carlo simulations (MCS) or discrete differential evolution (DDE). As an example, a mistuned bladed disk of an aero-engine was analyzed and the validity of the proposed method was verified.
10
Sajben, Miklos. "Prediction of Acoustic, Vorticity and Entropy Waves Generated by Short-Duration Acoustic Pulses Incident on a Blade Row." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-148.
Full textAbstract:
Some long-standing questions concerning the dynamic behavior of coupled inlet/compressor systems have been answered by analyzing data from recent experiments in which the reflections of intense, short-duration acoustic pulses from an operating compressor were documented. The present paper offers a simple, one-dimensional integral theory as a background for these experiments. The arrival of an acoustic pulse (or an acoustic step change) to a single row of stationary blades gives rise to two acoustic waves (one upstream and one downstream), one vorticity wave, and possibly also an entropy wave. Pulses are characterized by integrals of spatial distributions of pressure, temperature or tangential velocity, while steps are defined by the jump of these flow properties at the wave. Simple expressions are given for the strength of each wave type, in terms of the blade stagger angle and the axial Mach number. The results help in interpreting, scaling and extrapolating experimental data. The work is a step towards an ability to specify realistic outflow boundary conditions in unsteady inlet flow computations, as appropriate for the compressor geometry and the operating conditions.