Component assembly

2017 ◽  
pp. 39-44
Author(s):  
Ralph R. Pawlak
Keyword(s):  
Component Assembly

The Influence of Manufacturing Tolerances on Swirler Durability

2014 ◽  
Author(s):  
Nagaraja S. Rudrapatna ◽  
Richard R. Bohman ◽  
Jonathan K. Anderson ◽  
Rudolph Dudebout ◽  
Richard Hausen
Keyword(s):  
Damage Mechanism ◽  
Jet Fuel ◽  
Combustible Mixture ◽  
Fuel Injector ◽  
Component Level ◽  
Pareto Chart ◽  
Flow Features ◽  
Manufacturing Tolerances ◽  
Oxidation Damage ◽  
Component Assembly

Jet fuel flowing through the fuel injector is atomized and then mixed with high temperature compressed air flowing through the swirler to create a combustible mixture inside a gas turbine combustor. Individual geometric and flow features are carefully tuned at a component level to deliver optimum combustion performance. In a critical interface such as the fuel injector and swirler, manufacturing tolerances not only have an impact on combustor performance and operability but also on durability, as the relative position of the fuel injector to the swirler significantly impacts the swirler temperature. This paper studies the influence of manufacturing tolerances on component assembly and the resulting impact on swirler temperature. The oxidation damage mechanism of the swirler is used as a measure to assess swirler durability. A Pareto chart of the effect of manufacturing tolerances on metal temperature is used to highlight the key influencing parameters. Probability distribution associated with manufacturing tolerances is gathered with Monte Carlo simulation to guide the design.

scholarly journals Shock Pulse Shaping in a Small-Form Factor Velocity Amplifier

2010 ◽  
Vol 17 (6) ◽  
pp. 787-802 ◽  
Author(s):  
Gerard Kelly ◽  
Jeff Punch ◽  
Suresh Goyal ◽  
Michael Sheehy
Keyword(s):  
Pulse Shaping ◽  
Vertical Axis ◽  
Mechanical Shock ◽  
Practical Applications ◽  
Shock Testing ◽  
Acceleration Signal ◽  
High Acceleration ◽  
Component Assembly ◽  
Small Form Factor ◽  
Shock Pulses

This theme of this paper is the design and characterisation of a velocity amplifier (VAMP) machine for high-acceleration shock testing of micro-scale devices. The VAMP applies multiple sequential impacts to amplify velocity through a system of three progressively smaller masses constrained to move in the vertical axis. Repeatable, controlled, mechanical shock pulses are created through the metal-on-metal impact between pulse shaping test rods, which form part of the penultimate and ultimate masses. The objectives are to investigate the controllable parameters that affect the shock pulses induced on collision, namely; striker and incident test rod material; test rod length; pulse shaping mechanisms; and impact velocity. The optimum VAMP configuration was established as a 60 mm long titanium striker test rod and a 120 mm long titanium incident rod. This configuration exhibited an acceleration magnitude and a primary pulse duration range of 5,800–23,400 g and 28.0–44.0μs respectively. It was illustrated that the acceleration spectral content can be manipulated through control of the test rod material and length. This is critical in the context of practical applications, where it is postulated that the acceleration signal can be controlled to effectively excite specific components in a multi-component assembly affixed to the VAMP incident test rod.

scholarly journals Structural and Thermodynamic Analysis of a Three-Component Assembly Forming ortho-Iminophenylboronate Esters

2016 ◽  
Vol 81 (18) ◽  
pp. 8319-8330 ◽  
Author(s):  
Brette M. Chapin ◽  
Pedro Metola ◽  
Vincent M. Lynch ◽  
John F. Stanton ◽  
Tony D. James ◽  
...  
Keyword(s):  
Thermodynamic Analysis ◽  
Component Assembly

Some conceptual issues in component-assembly modelling

2001 ◽  
Vol 15 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Mike Rosenman ◽  
Simeon J. Simoff
Keyword(s):  
Component Assembly

scholarly journals In-Process Measurement for the Process Control of the Real-Time Manufacturing of Tapered Roller Bearings

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1371 ◽  
Author(s):  
Francisco Brosed ◽  
A. Zaera ◽  
Emilio Padilla ◽  
Fernando Cebrián ◽  
Juan Aguilar
Keyword(s):  
Real Time ◽  
Measurement Procedure ◽  
Axial Loads ◽  
Machining Processes ◽  
Process Measurement ◽  
Roller Bearings ◽  
Tapered Roller ◽  
Environmental Process ◽  
Tapered Roller Bearings ◽  
Component Assembly

Tapered roller bearings can accommodate high radial loads as well as high axial loads. The manufacturing process consists of machining processes for ring and component assembly. In this contribution, the parameters of influence on the measurement procedure were studied. These parameters of influence were classified as environmental, process, and machine parameters. The main objective of this work was to optimize the process using real-time measurements, which required the study of the influence of several parameters on the measurement uncertainty and how to correct their effects.

scholarly journals Purwarupa Alat Kalibrasi Kerataan Bidang Kerja menggunakan Laser Sensor

2018 ◽  
Vol 6 (2) ◽  
pp. 274
Author(s):  
BUDI SUGANDI ◽  
SURADI WIYONO
Keyword(s):  
Prototype System ◽  
Laser Sensor ◽  
Important Process ◽  
Manual Measurement ◽  
Industrial Manufacturing ◽  
Die Attach ◽  
Pick And Place ◽  
Component Assembly ◽  
Keywords Laser

ABSTRAKSalah satu elemen teknologi pendukung dari industri manufaktur elektronika adalah mesin Die Attach. Mesin ini digunakan pada proses assembly komponen dengan metode pick and place komponen pada material. Sebagai proses yang penting dalam industri manufaktur, mesin ini memerlukan kalibrasi secara reguler dan tepat yang akan menjadi kunci sukses dari kualitas suatu produksi. Penelitian ini bertujuan membuat suatu purwarupa alat yang digunakan sebagai pengontrol kalibrasi dengan menggunakan laser sensor. Proses kalibrasi dilakukan dengan cara mengukur kerataan titip sisi work holder menggunakan laser sensor. Kerataan didapatkan dengan membandingkan jarak yang terukur oleh laser sensor pada tiap titik uji. Jarak yang sama pada tiap titik uji menunjukkan kerataan dari work holder. Pergerakan laser sensor dikontrol oleh dua buah motor yang bergerak ke arah sumbu X dan Y. Alat ini telah diuji dengan mengkalibrasi pada empat sisi work holder. Hasil pengujian kemudian dibandingkan dengan pengukuran manual dan didapatkan error rata-rata pengukuran sekitar 4%.Kata kunci: Laser sensor, kerataan, kalibrasi, die attach machine ABSTRACTOne of the element technology supporting an industrial manufacturing is Die Attach machine. This machine is used at component assembly using component pick and place. As an important process, this machine requires regular and precise calibration to support quality of the product. This research aims to build a prototype system using laser sensor which can be used as calibration instrument. The callibration proses was done by measuring the flatness of each side of work holder using laser sensor. The flatness was obtained by comparing the distance of each testing point. The same distance on each testing point represented the flatness of the wrok holder. The movement of laser sensor was controlled by two motors which moved to X and Y axis. The system has been tested to calibrate each side of work holder. The experimental results were then compare with manual measurement and showed the measurement error about 4%.Keywords: Laser sensor, flatness, callibration, die attach machine.

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