Mechanical Parameters

Introduction to shock & vibration gives an introduction to vibration through a description of the most common mechanical parameters leading to the behaviour of simple mass spring systems. Furthermore the different types of signals and their description is treated and the conversion between the different parameters is described mathematically and graphically. Finally the measurement units are defined.

36p vanquanpl 18-05-2015 58 8   Download

Bài giảng "Máy học nâng cao: Genetic algorithm" cung cấp cho người học các kiến thức: Introduction - Genetic algorithm (GA), genetic algorithm operators and parameters, example. Cuối bài giảng có phần bài tập để người học ôn tập và củng cố kiến thức.

70p abcxyz123_08 11-04-2020 58 4   Download

This research focuses on Fibre Cement Felts (FCF), which is a non-woven textile substrate acting as a conveyor belt for the manufacturing of Fibre Cement Sheets (FCS). Fibre Cement Felts are a valued component required in the manufacturing process of Fibre Cement Sheets, used in construction for today’s building industry. Identifying the key factors that most influence FCF will assist in understanding of the relationship between fibre diameters, carded web, and mechanical bonding.

137p runthenight07 01-03-2023 8 3   Download

Detailed objectives of this study are: to analyze the risk of failure and probability of failure of existing reinforced concrete bridges qualitatively and quantitatively; to consider the effects of interactions among various deterioration parameters and among bridge components on system failure; to identify major durability related distress mechanisms of deterioration of reinforced concrete bridges and model the subsequent risk of failure of bridge system;…

163p runthenight07 01-03-2023 9 3   Download

Steel fiber reinforced concrete (SFRC) is a multiple-composite material developed during the early 1970s. In SFRC, short steel fibers are randomly distributed in concrete. Steel fibers can prevent the development of micro-cracks inside the concrete and reduce the expansion and development of the macro-cracks, thus enhance mechanical performance of SFRC. However, there is lack of studies on the influence of flowability of fresh SFRC on the steel fiber distribution patterns and mechanical properties of hardened SFRC.

85p runthenight04 02-02-2023 8 4   Download

Once the mechanical properties of printed TPU are characterised, a novel, low cost, and environmentally friendly method for concrete casting using printed TPU moulds is proposed in this thesis. The findings of this thesis will provide clear guidelines for the selection of processing parameters for additively manufactured TPU parts and the method of casting complicated concrete structures with additively manufactured TPU mould.

98p runordie3 06-07-2022 14 3   Download

Theoretical aim: An overview study of the production process, physicochemical properties and applicability of 2.5-dimethylfuran on on internal combustion engines (especially SI engines) to determine the reasearch gap, scope and plan; the theoretical basis study of combustion and emission of SI engines using DMF as fuel to examine the technical parameters and emissions of the engine when using DMF-gasoline blends on a gasoline engine.

28p closefriend09 16-11-2021 25 6   Download

Building models, setting up dynamic equations, vibration equations of vertical band saw blades, surveying dynamic equations, determining some optimal parameters of vertical band saws in automatic sawing lines, to improve productivity and product quality.

27p closefriend09 16-11-2021 25 4   Download

Object and scope: Small ship diesel engines with the range of power from 50 hp to 100 hp; traditional diesel fuel with 0.05% sulfur content, ULSD with 0.001% sulfur content, and Biodiesel originated from coconut oil; fabrication of ultrasonic wave-based equipment/system to produce homogeneous fuel blend;fuel supply system, exhaust system, and control and test system of the engine; testing equipment for engine power and emissions parameters.

27p closefriend09 16-11-2021 19 5   Download

The propose a new method aiming to adjust the TXOP parameter according to a dynamic mechanism that suits the priority of each data type from the existing limitations with TXOP parameter in IEEE 802.11 EDCA; the propose a novel fuzzy logic approach for enhancing the fairness of low priority data flows in IEEE 802.11 EDCA.

27p capheviahe27 23-02-2021 33 3   Download

The aims of this study are to develop and apply the method of using frequency response functions to diagnose cracks in elastic bar and beams structure. The contents of the study includes: building models of cracked elastic bar and 3 beams structure; studying the changes of oscillation parameters, mainly frequency response functions due to cracks.

27p larachdumlanat129 20-01-2021 24 6   Download

To successfully fabricate sensor based on α-Fe2O3, ZFO NFs and their loading with RGO by on-chip electrospinning method. To explore the effect of fabrication parameters (i.e. solution composition, heat treatment, electrospun time, and RGO concentration) on the NF morphology, structure and H2S gas sensing properties. To clarify H2S gas-sensing mechanism of the sensors of α-Fe2O3, ZFO NFs and their incorporation with RGO.

141p trinhthamhodang7 31-08-2020 12 2   Download

The aim of the work is a quantitative approximate assessment of the contribution of various hardening mechanisms for carbon and low alloy steels according to their chemical composition and parameters of a thin metallographic structure.

9p lucastanguyen 01-06-2020 12 1   Download

One of the easiest and efficient way of water conservation to solve drinking water scarcity is rooftop water harvesting. To evaluate the performance of the first flush with micromesh filter system, inflow and outflow of the rooftop water samples were analysed for pH, EC, TDS, SAL and TSS parameters. In general, the PH, electrical conductivity, and TDS of the roof water samples were within the drinking water standards and the first flush with micromesh filter system was found to reduce TDS values.

9p chauchaungayxua6 26-06-2020 17 2   Download

To understand the role of different metallurgical parameters on the void formation mechanisms, various austenitic stainless steels were elaborated and irradiated with heavy ions. Two alloys, in several metallurgical conditions (15Cr/15Ni–Ti and 15Cr/25Ni–Ti), were irradiated in the JANNUS-Saclay facility at 600 °C with 2 MeV Fe2+ ions up to 150 dpa.

11p christabelhuynh 30-05-2020 14 2   Download

This article draws a state of knowledge of the dissolution of uranium dioxide in nitric acid media. The chemistry of the reaction is first investigated, and two reactions appear as most suitable to describe the mechanism, leading to the formation of monoxide and dioxide nitrogen as reaction by-products, while the oxidation mechanism is shown to happen before solubilization.

13p christabelhuynh 30-05-2020 7 1   Download

It is also well known that the knowledge of nuclear reaction mechanisms is at best approximate, and that their modeling relies on many parameters which do not have a precise physical meaning outside of their specific implementations in nuclear model codes: they carry both specific physical information, and effective information that is related to the deficiencies of the model itself.

8p christabelhuynh 29-05-2020 8 1   Download

The low cycle fatigue (LCF) resistance of two different metal matrix composite (MMC) of AA6063 with 2% and 8% by volume silicon carbide (SiCp) particles having particulate size of 37 micron (400 mesh) at room temperature condition has been evaluated under fully reversed strain control testing.

15p tohitohi 19-05-2020 23 0   Download

This work investigated and predicted the fatigue life durability of Austenitic Stainless Steel 316L at room temperature due to its importance in plant industries worldwide. Modelling and simulations were performed to clarify the fracture as well as stress distribution using integrated mechanism.

10p tohitohi 19-05-2020 17 1   Download

Aluminium alloy AlMg4.5Mn has got comprehensive acceptance in the manufacturing of light weight frames, marine structures which require high strength and worthy corrosion revulsion. The present investigation work focuses on friction stir welding process in which influences of operating parameters have been studied on friction stir welded butt joints.

10p tohitohi 19-05-2020 36 2   Download