In this article, eight disciplines problem solving method is used to continuously improve quality by eliminating the causes and prevent their reoccurrence. The Latch assembly line at an aerospace industry reported that “Customer is not happy with the order fulfillment of center guide assembly”. The statistical data collected also revealed that delivery performance is observed to be 78.14% instead of 100%. A visual control analysis was done by implementing a visual control board and it was inferred that center guide assembly has some inherent capacity issues and can be improved by adding additional resources. Time study was carried out to validate the corrective actions performed. Then Ranked Positional Weight (RPW) method, a theoretical line balancing technique was adopted to balance the work element. Improvements were assessed and a Preventive Maintenance check list was developed to prevent recurrence of all similar problems. Finally, the team members were felicitated certificates for their efforts.
The early development of solar technologies starting in the 1860s. The need to increase the use of renewable energy sources for sustainable energy development was recognized in our country in the early 70s. Early 20th century the development of solar technologies is constant because it faces growth in economy, availability and utility of petroleum and coal. Through our dependency on inexhaustible and independent resource we can increase countries’ energy security. The impact of which enhance sustainability, reduce fossil fuel prices, costs of mitigating climate change and pollution. To control long-term carbon emissions without compromising its economic growth potential, India can make solar energy as one of the major sources of its economy.
The present project pattern in composite is for the advancement of aluminum metal grid composite with matrix. It is a direct result of Properties like light weight, minimal effort, bio-biodegradability, low natural effect and straightforwardness to fabricate. It gets important to consider the vibration conduct of composite notwithstanding mechanical quality and synthetic properties for viable usage in genuine applications as they exposed to numerous sorts of stacking condition and various kinds of vibration with various arrangements. In present work an aluminum composite bar is made with unidirectional direction for estimation of transverse vibration with various end arrangements results got from explanatory technique and modular examination in ANSYS are analyzed. The mechanical properties are considered by performing tensile, flexural and impact test on the beam according to ASTM standards.In this study, free vibration of circular cross-sectioned aluminium matrix composites beams is investigated numerical and experimental under four different boundary conditions: Clamped-Clamped (C-C), Clamped-Free (C-F), Clamped-Simply Supported (C-SS) and Simply Supported-Simply Supported (SS-SS). Experimental solution is carried out using vibration testing machine and numerical solution is done ANSYS software. Then, solutions including the effects of the geometric characteristics, and boundary conditions are obtained and discussed for the natural frequencies of the first three modes. To confirm the reliability of the vibration analysis carried out in the present paper as well, all the experimental results are checked with the corresponding numerical results obtained from the finite-element-method (FEM) based software called ANSYS.
Chronic obstructive Pulmonary Disease [COPD] is a respiratory disorder which is caused due to obstruction of upper airways. Dry Powder Inhalers (DPI) are used predominantly in the treatment of COPD. Dry Powder Inhalers are used to penetrate the powder drug which is very fine [>5µm] into the respiratory track. It is considered efficient way to treat COPD as the device can pump the drug directly to the alveoli. But as the drug is been transported through the throat region a partial volume of drug gets stagnated. Thus there is loss of drug reaching the target. The deposition efficiency is determined by value of Strokes number, a non-dimensional parameter. Peak Inspiratory Flow Rate (PIFR) is a significant parameter in the determination of inhaler efficiency. For more optimized PIFR value, the Reynolds number is taken as reference at the inhaler mouth piece. As PIFR value varies depending on age and severity of the disease, a pneumatic blower is incorporated within the inhaler design. In the commercially available DPI, the capsule is punctured which causes ferrous content in the capsule body to mix with the powdered drug. An alternative design is suggested so that the capsule is split open without puncturing it. The deposition of powdered drug within the DPI device is minimized by optimizing the square filter into Honeycomb structure filter.
This paper presents a work undertaken in a drum closure manufacturing industry which produces different models of drum closures and cap seals which are used in drum barrels. The work aim was to reduce the process variation observed with respect to wall thickness during milling operation and thread height during rolling operation. Statistical tools such as control charts, normality tests were used to determine the effect of variation. The identified problems were analyzed and improvement actions were scheduled. These improvement actions were based on application of Lean tools. A locking plate was modelled and a by-pass filter was suggested to be implemented.
