Modeling and Development of Passively Adaptive Assistive Tools for the Assembly of Press-Fit Components

2021 ◽  
Vol 143 (9) ◽  
Author(s):  
Jérôme Landuré ◽  
Thierry Laliberté ◽  
Clément Gosselin ◽  
Muhammad E. Abdallah
Keyword(s):  
Force Generation ◽  
Passive Force ◽  
Assembly Task ◽  
Specific Solution ◽  
Press Fit ◽  
Spark Plug ◽  
Assembly Operations ◽  
Translational Mechanisms

Abstract This article discusses passive mechanical architectures for accuracy correction during assembly operations. A specific solution for passive force generation with thresholds is presented. Then, the kinematics of several rotational and translational mechanisms is presented. Afterwards, a case study is introduced and the design of a prototype is presented together with some tests performed on a spark plug assembly task.

scholarly journals The Working Principle of a Turbine “Case Study: GE Frame 9E Gas Turbine”

2019 ◽  
pp. 1-20
Author(s):  
Obolo Olupitan Emmanuel
Keyword(s):  
Internal Combustion Engine ◽  
Gas Turbine ◽  
Combustion Engine ◽  
Mechanical Energy ◽  
Internal Combustion ◽  
Reciprocating Motion ◽  
Fuel Gas ◽  
Spark Plug ◽  
Working Principle

Gas Turbine is one of the machines that use the thermodynamic principle converting fuel energy to mechanical energy. It is an internal combustion engine. Also, designed to accelerate a stream of gas, which is used to produce a reactive thrust to propel an object or to produce mechanical power that turns a load. It functions in the same way as the internal combustion engine. It sucks in air from the atmosphere, and compress it. The fuel (gas) is injected and ignited (spark plug). The gases expand doing work and finally exhausts outside. Instead of reciprocating motion, the gas turbine uses a rotary motion throughout, and that is the only difference.

scholarly journals Changes in shear wave propagation within skeletal muscle during active and passive force generation

2019 ◽  
Vol 94 ◽  
pp. 115-122 ◽  
Author(s):  
Allison B. Wang ◽  
Eric J. Perreault ◽  
Thomas J. Royston ◽  
Sabrina S.M. Lee
Keyword(s):  
Skeletal Muscle ◽  
Wave Propagation ◽  
Shear Wave ◽  
Force Generation ◽  
Passive Force

Optimizing Assembly Line Production through Line Balancing: A Case Study

2015 ◽  
Vol 761 ◽  
pp. 104-108
Author(s):  
Adi Saptari ◽  
Jia Xin Leau ◽  
M. Nor Akramin
Keyword(s):  
Cycle Time ◽  
Assembly Line ◽  
Line Balancing ◽  
Additional Increase ◽  
Line Production ◽  
System A ◽  
Line Setting ◽  
Assembly Operations ◽  
Current Systems

In Line Balancing principles, the total workload in the assembly process is divided as evenly as possible among the workstations, without violating the sequences and relations in the assembly operations. Line balancing is important in an assembly system as it balances the line and increases the efficiency, as well as the productivity of a system. A case study was conducted in the assembly line of an electrical accessories manufacturer in Malaysia. The cycle time for each station was recorded, and the standard cycle time was estimated. The productivity, as well as the efficiency of the current assembly line, were studied. In terms of the productivity, the performance of the current systems was 500 units/worker/day, while the expected productivity was 600 units/worker/day. An assembly line setting was proposed based on the Line Balancing Method; the productivity for the proposed line increased to 671 units/worker/day, or in rough additional increase around 34%.

scholarly journals Running economy - a comprehensive review for passive force generation

2019 ◽  
Vol 15 (5) ◽  
pp. 640-646
Author(s):  
Christos Ziliaskoudis ◽  
Song-Young Park ◽  
Sang-Ho Lee
Keyword(s):  
Running Economy ◽  
Force Generation ◽  
Passive Force ◽  
Comprehensive Review

Case Study for Replacing the DAM 6X40 Lathe with Doosan LYNX 220 Lathe for Processing the Part "Body of Spark Plug"

2016 ◽  
Vol 859 ◽  
pp. 163-169
Author(s):  
Călin Ciprian Otel ◽  
Razvan Păcurar ◽  
Daniel Filip ◽  
Monica Steopan ◽  
Paul Frîncu
Keyword(s):  
New Technology ◽  
Production Capacity ◽  
Time Rate ◽  
Spark Plug ◽  
Cnc Lathe ◽  
Fixed Assets ◽  
Enterprise Level ◽  
A Company ◽  
Made In

This paper aims to provide the economic calculations that were made in order to make a comparison between the old technology used by a company, multi-spindle lathe DAM 6X40 and new technology that should be acquired, CNC lathe Doosan LYNX 220 for processing the part entitled "body of spark plug". The investment in the new technology is urgently needed given the age of the existing technology but the company wants to know in advance what are the costs and how long it would be able to recover the investment. In this regard were calculated the time rate for the operation, economy with direct wages, production capacity, amortization of the fixed assets, cost of the part at the enterprise-level and the return period of additional investment.

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