Matching Items (3)
Description
Dimensional Metrology is the branch of science that determines length, angular, and geometric relationships within manufactured parts and compares them with required tolerances. The measurements can be made using either manual methods or sampled coordinate metrology (Coordinate measuring machines). Manual measurement methods have been in practice for a long time and are well accepted in the industry, but are slow for the present day manufacturing. On the other hand CMMs are relatively fast, but these methods are not well established yet. The major problem that needs to be addressed is the type of feature fitting algorithm used for evaluating tolerances. In a CMM the use of different feature fitting algorithms on a feature gives different values, and there is no standard that describes the type of feature fitting algorithm to be used for a specific tolerance. Our research is focused on identifying the feature fitting algorithm that is best used for each type of tolerance. Each algorithm is identified as the one to best represent the interpretation of geometric control as defined by the ASME Y14.5 standard and on the manual methods used for the measurement of a specific tolerance type. Using these algorithms normative procedures for CMMs are proposed for verifying tolerances. The proposed normative procedures are implemented as software. Then the procedures are verified by comparing the results from software with that of manual measurements.
To aid this research a library of feature fitting algorithms is developed in parallel. The library consists of least squares, Chebyshev and one sided fits applied on the features of line, plane, circle and cylinder. The proposed normative procedures are useful for evaluating tolerances in CMMs. The results evaluated will be in accordance to the standard. The ambiguity in choosing the algorithms is prevented. The software developed can be used in quality control for inspection purposes.
To aid this research a library of feature fitting algorithms is developed in parallel. The library consists of least squares, Chebyshev and one sided fits applied on the features of line, plane, circle and cylinder. The proposed normative procedures are useful for evaluating tolerances in CMMs. The results evaluated will be in accordance to the standard. The ambiguity in choosing the algorithms is prevented. The software developed can be used in quality control for inspection purposes.
ContributorsVemulapalli, Prabath (Author) / Shah, Jami J. (Thesis advisor) / Davidson, Joseph K. (Committee member) / Takahashi, Timothy (Committee member) / Arizona State University (Publisher)
Created2014
Description
The current study is the first qualitative investigation aimed solely at understanding what it means to communicate conditional forgiveness in serious romantic relationships. Conditional forgiveness is forgiveness that has been offered with the stipulation that the errant behavior cease. It is a provocative topic because some argue genuine forgiveness is not conditional, but recent discoveries that have associated its use with severe transgressions and relational deterioration suggest it is a critical site for investigation. This inductive analysis of open-ended data from 201 anonymous surveys identified both distinctions between and intersections of conditional forgiveness, forgiveness, and reconciliation. A relational dialectics analysis also revealed that reconcilable-irreconcilable was the overarching tension for conditional forgivers and six additional tensions also were also discovered: individual identity-couple identity, safety-risk, certainty-uncertainty, mercy-justice, heart-mind, and expression-suppression. Of particular intrigue, the current analysis supports the previous discovery of implicit conditional forgiveness--suppressing conditions, sometimes in response to physical and substance abuse. Ultimately, the current analysis contributes to the enduring conversation aimed at understanding the communication and pursuit of forgiveness and reconciliation. It addresses one of the basic instincts and paradoxes of existing with others--the balance between vulnerability and protection.
ContributorsKloeber, Dayna Noel (Author) / Waldron, Vincent R. (Thesis advisor) / Kelley, Douglas L. (Committee member) / Kassing, Jeffrey W. (Committee member) / Fisher, Carla L. (Committee member) / Arizona State University (Publisher)
Created2011
Description
The purpose of this study was to understand more about how romantic couples negotiate forgiveness and reconciliation. To do so, this study used purposive sampling and recruited 21 couples (42 individuals) to independently complete diaries two times a week for four weeks. In addition to collecting information about the transgression and background related to the transgression, participants were asked to report their most recent conversations with their partner since their last diary. Analysis revealed that couples’ conversations were triggered in the following seven ways: Intentional repair, during other conversation, during other arguments, airing feelings, everyday interactions, potential for temptation or risk, and chronic behavior associated with violation. This interpretive analysis was also guided by negotiating morality theory. One of the central assumptions of negotiated morality theory is that forgiveness communication is an important site for relational partners to negotiate a shared sense of morality. Moreover, the details of couple’s diaries and conversations provide information that can be used to advance negotiated morality theory. Specifically, this analysis extends theory by 1) demonstrating that conceptualizing the moral functions of forgiving communication hierarchically, renaming constructs, and the addition of a new construct (honoring emotion) will improve its parsimony and explanatory power, 2) illustrating how couples engage in discussion-based forgiveness and reconciliation, and 3) empirically illustrating how defining moral standards and restoring relational justice are the two main moral functions of forgiving communication. Restoring relational justice consisted of the following subthemes: establishing accountability, atonement, honoring the self and other, honoring emotion, and increasing safety and certainty. Among the contributions this analysis makes is identifying and describing honoring emotion. In doing so, the subcategories of honoring emotion provide both heuristic and practical implications. Participants’ diaries provided insights about the range of emotions, the discomfort and difficulty of emotional conversations, and communicating emotions.
ContributorsKloeber, Dayna N (Author) / Adame, Elissa A (Thesis advisor) / Alberts, Jess K (Thesis advisor) / Randall, Ashley K (Committee member) / Arizona State University (Publisher)
Created2023