Sökning: "Capability Indices"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Capability Indices.

  1. 1. Essays on Capability Indices for Autocorrelated Data

    Författare :Erik Wallgren; Anders Christoffersson; Jan Wretman; Uppsala universitet; []
    Nyckelord :Statistics; Capability Indices; Autocorrelated data; Monte Carlo Simulations; Statistik;

    Sammanfattning : The use of process capability indices in the industry is traditionally based on the assumptions that a sample from a process are observations on independently, identically and normally distributed random variables, IIN. However, all three assumptions are open to discussion and in this thesis, the estimation of the indices is studied when the assumption of independence is not fulfilled. LÄS MER

  3. 2. Contributions to multivariate process capability indices

    Författare :Ingrid Tano; Anders Lundquist; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematisk statistik inriktning industriell statistik; Mathematical Statistics with special emphasis on Industrial Statistic; Matematisk statistik; Matemathical Statistics; Manufacturing and materials engineering;

    Sammanfattning : The work presented in this thesis considers multivariate process capability indices (MPCIs) with focus on confidence intervals and tests for MPCIs. It also includes a case study, where multivariate statistical analysis and MPCIs are applied to data from a thermal spraying process at Volvo Aero Corporation. LÄS MER

  4. 3. Contributions to process capability indices and plots

    Författare :Malin Albing; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical Statistics with special emphasis on Industrial Statistic; Matematisk statistik inriktning industriell statistik;

    Sammanfattning : This thesis presents contributions within the field of process capability analysis. Process capability analysis deals with how to assess the capability of processes. Based on process capability analysis one can determine how the process performs relative to its product requirements or specifications. LÄS MER

  5. 4. Capability in machining systems

    Författare :Annika Larsson; KTH; []
    Nyckelord :;

    Sammanfattning : The vehicle industry has derived a vision of simulatingmachining systems and their cutting processes with accuracy andcapability indices as a result. The accuracy of machined partsis the result of properties and characteristics of the totalmachining system and its environment. LÄS MER

  7. 5. Process capability analysis with focus on indices for one-sided specification limits

    Författare :Malin Albing; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical Statistics with special emphasis on Industrial Statistic; Matematisk statistik inriktning industriell statistik;

    Sammanfattning : In this thesis some aspects of process capability analysis are considered. Process capability analysis deals with how to assess the capability of manufacturing processes. Based on the process capability analysis one can determine how the process performs relative to its product requirements or specifications. LÄS MER