Dissertations / Theses on the topic 'Reducer housing'

В дипломній роботі розроблено проект дільниці механічного цеху для виготовлення корпуса редуктора РГ 115.007, а також досліджено технологію виготовлення широкосмугових гвинтових заготовок методом вальцювання.
The project of of mechanical shop for the manufacture of the housing reducer RG 115.007 is developed and research regimes rolling broadband screw blanks.
ВСТУП 1 АНАЛІТИЧНА ЧАСТИНА 1.1 Аналіз технологій виготовлення вальцьованих гвинтових заготовок 1.2 Технічні характеристики обладнання для виготовлення вальцьованих гвинтових заготовок. 2 НАУКОВО–ДОСЛІДНА ЧАСТИНА 2.1 Проектування широкосмугових вальцьованих гвинтових заготовок 2.2 Виготовлення ШГЗ способом вальцювання накатної зони смугової заготовки з трикутними вирізами. 2.3 Програма та методика проведення досліджень. 2.4 Дослідження впливу кроку вирізів на енергосилові та конструктивні параметри вальцьованих гвинтових заготовок. 3 ТЕХНОЛОГІЧНА ЧАСТИНА 3.1 Службове призначення та характеристики об’єкту виробництва. Аналіз технічних умов. 3.2 Аналіз технологічності конструкції деталі. 3.3 Аналіз типу та організаційної форми виробництва. 3.4 Вибір способу одержання заготовки. 3.5 Вибір методів оброблення, технологічних і вимірювальних баз. 3.6 Формування маршрутно-операційного технологічного процесу виготовлення виробу з вибором технологічного обладнання. 3.7 Визначення припусків на оброблення та розмірів заготовки. 3.8 Розмірний аналіз технологічного процесу. 3.9 Вибір різального, вимірювального та допоміжного інструменту. 3.10 Визначення режимів обробленя та технічних норм часу. 3.10 Визначення кількості обладнання, побудова графіків завантаження і використання обладнання. 4 КОНСТРУКТОРСЬКА ЧАСТИНА 4.1 Вибір пристосувань для механічного оброблення. 4.2 Розрахунок кондуктора для свердління отворів 8,5 мм. 4.3 Розрахунок 4-ох шпиндельної свердлильної головки. 5 СПЕЦІАЛЬНА ЧАСТИНА 5.1 Основні задачі САПР ТП. 5.2 Аналіз конструкційно-технологічних особливостей деталі. 5.3 Підготовка вихідної інформації. 5.4 Аналіз технологічного процесу отриманого за допомогою САПР ТП. 5.5 Блок-схема алгоритму автоматизованого проектування технологічного процесу. 6 ПРОЕКТНА ЧАСТИНА 6.1 Визначення річної потреби в технологічному обладнанні. 6.2 Вибір типу і розрахунок кількості вантажопідіймальних і транспортних засобів. 6.3 Вибір типу та основних будівельних параметрів будівлі, розроблення компонувального плану цеху та плану розміщення обладнання і робочих місць. 6.4 Розроблення завдань на енергетичну частину проекту цеху. 7 ОБГРУНТУВАННЯ ЕКОНОМІЧНОЇ ЕФЕКТИВНОСТІ 8 ОХОРОНА ПРАЦІ ТА БЕЗПЕКА В НАДЗВИЧАЙНИХ СИТУАЦІЯХ 8.1 Розробка внутрішнього планування дільниці та цеху в цілому з врахуванням вимог безпеки, санітарії та пожежних вимог. 8.2 Санітарно-гігієнічна характеристика умов праці на дільниці обробки корпусу. 8.3 Розрахунок місцевого вентиляційного відсосу пилу та стружки. 8.4 Заходи по відношенню стійкості машинобудівного заводу в екстремальних умовах. 9 ЕКОЛОГІЯ 9.1 Актуальність охорони навколишнього середовища. 9.2 Шкідливі викиди в цеху (дільниці). 9.3 Розрахунок нафтовловлювача. ВИСНОВКИ БІБЛІОГРАФІЯ ДОДАТКИ

Дипломний проект містить 92 стор., 22 табл., 10 рис., 8 посилань. Об'єкт проектування – технологічний процес виготовлення виливка з вуглецевої сталі «Корпус» масою 3,04 кг литтям у разові піщано-глинясті форми. Предмет проектування – технологія ливарної форми та організація роботи формувального відділення ливарного цеху. Результатами проектування є розроблення технології ливарної форми для заданого виливка, виконання технічного планування формувального відділення та розрахунок одиниці ливарного устаткування. Результати проектування – можуть бути рекомендовані на ливарних підприємствах з подібним характером виробництва. Галузь використання – підприємства машинобудування, військово промислового комплексу і т.п.
Thesis project: pages, 22 tables, 10 figures, 9 references. The object of design - the technological process of manufacturing a carbon steel casting "Gearbox housing" weighing 3,04 kg by casting in disposable sand claymolds. The subject of design - the technology of the mold and the organization of the molding department of the foundry. Design results - the technology of the casting mold for a given casting is developed, the technical planning of the molding department and the calculation ofthe unit of the casting equipment are performed. Design results - can be recommended at foundries with a similar nature of production. Field of use - enterprises of agricultural engineering, military-industrial complex, etc.

Thesis: M.C.P., Massachusetts Institute of Technology, Department of Urban Studies and Planning, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 102-107).
This thesis examines the potential impact and limitations that current metropolitan efforts on urban planning in the Metropolitan Area of Guadalajara could have in reducing the high rates of housing abandonment the city currently faces. Previous efforts to reduce housing abandonment in the city have not delivered the expected results, and the metropolitan government of Guadalajara has laid out a new Metropolitan Urban Development Plan (POTmet) that seeks to rethink housing allocation and reduce home abandonment. In this document I analyze POTmet's housing allocation and abandonment strategies through interviews with key stakeholders involved in the elaboration process of the plan. I create a narrative around these interviews to understand how stakeholders' interests translate into the final strategy outlined in the POTmet. Later, I contrast these findings with previous efforts to reduce housing abandonment in Guadalajara and with the factors that are currently understood as determinants of the abandonment problem. I discuss what the success and limitations of the POTmet could be in reducing housing abandonment and conclude that, while the POTmet successfully brings together key stakeholders that could work together to reduce home abandonment, previous interests that have driven the abandonment problem in the city are still present in the new proposal. The POTmet also fails to target important contributing factors of abandonment, diminishing its potential for success. I discuss these findings and propose new lines of research and action that the City of Guadalajara can take to achieve its objectives to reduce housing abandonment.
by Ricardo Martínez Campos.
M.C.P.

Climatic conditions inside the dairy barn do not concern dairy farmers until those conditions begin to affect productivity and, consequently, profits. As heat and humidity increase beyond the cow's comfort levels, milk production declines, as does fertility and the welfare of the cow in general. To reinforce the cooling mechanisms currently used, this work proposes an alternative system for reducing the risk of heat stress. This innovative conductive cooling system does not depend on current weather conditions, and it does not require significant modifications when it is installed or during its operation. Also, the system circulates water that can be reused. Given that a review of the literature found very few related studies, it is suggested that each freestall be equipped with a viable prototype in the form of a waterbed able to exchange heat. Such a prototype has been simulated using Computational Fluid Dynamics (CFD) and later verified by a set of experiments designed to confirm its cooling capacity. Furthermore, this investigation sets the foundation for modeling temperature in a water supply system linked to the waterbeds. EPANET, a software program developed by the Environmental Protection Agency, simulates the hydraulic model. Its Water Quality Solver has been modified according to an analogy in the governing equation that compares mass to heat transfer and serves to simulate water temperature as the water is transported from its source to the point of delivery and then as it returns to the same source.

This thesis deals with the potential contribution that state-of-the-art solar thermal (ST) systems enhanced by thermal energy storage (TES) technologies might have in reducing the energy use in Welsh dwellings. The focus of this work lies with the share of the overall amount of conventional energy currently consumed for thermal comfort and hot water preparation that could be replaced by solar energy harvested by active, water-based, solar systems. Twelve typical Welsh dwellings drawn from a recent survey and considered as representative of the Welsh housing stock are modelled and the solar collectors' yield for different orientations and tilts is predicted. The subject is investigated with computer simulations using the TRNSYS simulation engine. The methodology dictates at first prediction and analysis of the thermal energy demand profiles of 12x4 case studies using average (smoothed) and actual (warmer) weather conditions, continuous and intermittent comfort maintenance. Next the ST potential is estimated considering solely a maximum (0.7) and an average (0.4) overall system efficiency and no other technical part for the ST system (modelling approach), in order to investigate the mismatch of energy demand and availability and the TES contribution. The performance characteristics of some representative European ST systems (short-term TES only), as derived from the IEA SHC Task 26 FSC method, are then applied to the simulations to reveal the potential with realistic losses and parasitic energy consumption included (applied only to 5 compatible models). It is revealed that all these house types are possible candidates for effective ST applications, assuming that economies of scale would allow for large absorber areas in the near future. The modelling approach shows that ST systems could contribute to thermal savings between 9%-34% solely with direct utilisation of the collected energy. Furthermore, for most cases, if reasonable sized stores would be used (up to 300kWh TES capacity) then the solar contribution to the overall thermal energy consumption, in the most favourable conditions, would be around 42-58%. Only a couple of models appear to have a lower potential, mainly due to lack of sufficient absorber areas. However for reaching the highest end of expectations for certain house types---up to 54% with average and up to 100% with warmer weather conditions---inter-seasonal storage would be required. In this case, the justifiable storage capacities predicted correspond to very large store volumes, revealing that these are currently not feasible options, as sensible heat storage is still the state-of-the-art for TES. Use of innovative storage types identified by the literature survey, that would only be available in the future, are required in order to achieve high solar contributions, considering space limitations in Welsh dwellings. The FSC results show that for the 5 models the use of solar energy would bring thermal energy savings of around 41-47% if the best system is employed compared to a conventional system, while if parasitic (electric) energy consumption is considered the expected energy savings could be as low as 10%. The actual ST potential is analysed and is found to be in between the two approaches, as both methods have advantages and limitations and complement each other.

This thesis describes three connected stages of development and analysis of residential heat pump energy use: firstly, the analysis of heat pump performance data from a monitoring study of ground source heat pumps; secondly, the definition and development of a generalised residential heat pump energy model embedded within an enhanced dwelling energy model; finally, the analysis of the effects of possible residential heat pump installation scenarios on the UK energy supply and carbon emissions. The monitoring study involved three ground source heat pump installations. The data collected consisted of heat output, electric power input, system temperatures and system status indicators. Analysis indicated that these systems showed reductions in carbon emissions from homes ranging from 18% to 37% compared with their counterfactual fuel-burning systems. The monitoring study provided empirical values to parameterise the heat pump model which was built around a linear regression relationship of heat pump COP to source / sink temperature differential based on heat pump performance data from standard laboratory test results. This model was added in a new module to enhance the BRE domestic energy model, BREDEM-8, which provides monthly estimates. Estimating rules were included for energy use from bivalent alternate, bivalent parallel operation and space cooling. The enhanced BREDEM-8 model was used to analyse the effects of possible residential heat pump installations within a housing stock energy model developed using the English Housing Survey datasets as a data source. Baseline estimates for the current stock were created using data reduction techniques to provide parameters (u-values, glazing details) for the enhanced BREDEM-8 model. Scenarios for heat pump deployments were created for the periods up to 2020 and 2050, selecting dwellings for heat pump application according to scenarios reflecting the perceived needs of the period, ie. the likely reduction in UK generating capacity up to 2020 and CO2 emissions reduction targets to 2050. Results showed that up to 2020, a policy of targeting dwellings with the highest overall emissions for replacement would reduce carbon emissions by 7.6%, at the expense of a 12% increase in electricity consumption. Targeting dwellings with the highest emitting existing systems caused a smaller increase in electricity consumption of about 6.5% with carbon emissions reduced by about 6.8%. The scenarios for the period to 2050, including 80% replacement of gas systems with heat pumps, gave an estimated 80% reduction in carbon emissions, when accompanied by an similar reduction in the carbon intensity of electricity generation and bringing about an increase in electricity consumption of somewhat over 40%. The effect of the more extreme scenario is to replace all but a small proportion of the energy used for heating and hot water with standard rate electricity, in 84.6% of the dwellings, and retaining gas in the remainder, 15.2%, bringing about a radical shift to electric heating throughout the housing stock.

O espaço mínimo é um tema sobre qual se tem debruçado o trabalho de muitos arquitectos, e que continua a alimentar reflexões e obras construídas de grande interesse. Uma vez que a habitação é o programa por excelência nesse tipo de investigação, estudam-se as pesquisas realizadas desde o século passado sobre o tema da casa mínima, em que se verifica uma evolução no enfoque do problema, de que se passa do doméstico para o urbano, da casa à cidade. Estudam-se também intervenções sobre o existente quando este se mostra desadequado aos standards contemporâneos de habitabilidade. Duma primeira análise, percebe-se que essa produção pode ter dois processos de concepção distintos, uma que está ligada a uma visão poética do mínimo e consequente depreciação do supérfluo, e outra, mais pragmática, fortemente ligada à prática de arquitectura em contextos de escassez de recursos. Nestes contextos o espaço é mínimo como resultado da falta de recursos, pelo que existe uma procura constante para superar essa limitação, de modo que se estudam casos exemplares que o fazem com sucesso. Tendo em conta que essa procura mantêm, naturalmente, uma forte relação com o fazer, com a dimensão tectónica do espaço mínimo, dedica-se um capítulo da presente dissertação a intervenções que desenvolvem uma investigação em torno da construção em contextos de escassez, de sistemas construtivos e materiais que ao serem utilizados trazem uma mais valia ao espaço construído, qualitativamente e quantitativamente; *** ABSTRACT:The Minimum Dwelling The minimum space in architecture is a problem which has fueled the work of many architects, and that still is a considerable motivation for interesting reflexions and buildings. In a closer analysis of the problem, we can understand that threre are two main conception processes from which we obtain the minimum space in architecture; one that is linked with a poetic vision of the minimum, and consequently the elimination of anything superfluous; the other one, more practical, that is strongly connected with practicing architecture in contexts of shortage of means. In these contexts the minimum is a direct result of the the lack of means, so there is a continuous search to overcome this limitation, therefore we find it necessary to study exemplary cases that do this successfully. The search for more space is closely connected with the tectonic dimension of the space, which is the subject of one of the chapters of this study: buildings in which the use of reduced cost and sustainable materials and building techniques brought a significative improvement, both in terms of quality and size. Since housing is the field in which most of this kind of investigation takes place, we studied some of the most fruitful periods of production and thinking about the minimum dwelling, where we can observe a gradual change in the way in which the subject was approached, starting from a domestic point of view and gradually gaining urban connotations. We also study cases of intervention in the existing buildings, with the objective of improving the living conditions to the contemporary standards

Theme of the master’s thesis is new building of nursing home that will serve residents of the town Hronov and its closer surroundings. The building is brick and the roof is designed as a horizontal. The building consists of a basement and three floors. Plot is situated in a slightly sloping terrain. It is an object of Housing and accommodation. On the 1st floor there is general practitioner, hairdressing and pedicure that serve the public. The building is designed with regard to persons with reduced mobility. There is a parking place next to building.

碩士
大葉大學
設計研究所
92
After 9/21 Chi-Chi earthquake disaster. The reconstruction will end finish on the fourth anniversary. Many who experienced heavy losses, including their homes, will also be re-housed in the new construction style, because the reconstruction process just happened to coincide with the initial stage of the domestic green construction development. Many green constructions extend approach involving the new domestic housing block plans built to approved green standards. The need to avoid worsening environmental pressures due to previous intensive industrial development was kept in mind was uppermost in designers’ minds This research investigates our national green construction industry to assess "EEWH" the waste reduction system. Waste Reduction is the appraisal method, by which the carbon dioxide decrement and the brings the environment back into balance, this research discusses whether the new Taiwanese construction process achieves the goal of a low environmental loading. As well as the research techniques, whichare part of the rationale, the study carries on the carbon dioxide decrement, and reject decrementsin the related literature discussion; However the research analysis used material obtained from 29 investigations into new-built housing. By using narration statistics the method carries on a thorough analysis, seeking to understand how the new-built housing measures up to the construction standards. This study also made some useful discoveries and suggests improvements. Experimental results reveal first, that the construction industry does not view ecological and green construction standards appropriately and induces, the classification by took of basic data the following research, The study also introduces a classification system which aims at reducing the target group of waste products by obtaining further analytical results and finally produces suggestions for dealing with waste products in the future. It is hoped that if time allows more thorough research this study will become the basis of a complete reference work.

An increasing trend of using macroprudential instrument, caps on loan-to-value (LTV) ratio, requires a full understanding of how the instrument works in practice. As the empirical research is still scant, this thesis attempts to contribute with a new evidence on LTV effectiveness in context of six developed economies, namely Netherlands, Sweden, Ireland, Hungary, Latvia and Lithuania. To achieve this objective we analyse the impact of caps on LTV on credit growth, mortgage credit-to- GDP ratio and price growth. LTV limits are not a harmonised measure and its national-level implementation includes numerous specificities that can hinder cross-country comparisons. As a result, this thesis proposes a construction of LTV index reflecting specific aspects of the measure. Using the LTV Index we confirmed a slowdown of credit, mortgage and price growth. JEL Classification E44, E51, E52, E58, G21 Key words caps on loan-to-value ratio, maximum LTV ratio, macroprudential policy, credit-related instruments, LTV Index, house price growth, credit growth, financial stability.

Malaria, a preventable disease caused by a mosquito-transmitted parasitic infection, continues to be a prominent public health problem today. Progress has been made in the last decade demonstrated by malaria mortality reductions primarily attributed to current vector control strategies. However, the continuing threat of resistance, both resistance of mosquitoes to insecticides and parasites to antimalarial medicines, requires the development of new and improved strategies to supplement those already in place. Housing improvements such as screening doors and windows, closing eaves, patching cracks in walls, and installing ceilings are one such intervention that help stop contact between malaria vectors and humans, and therefore, help stop malaria transmission. Historically considered successful in helping fight malaria, housing improvements are being looked to again today.

Thesis (Ph. D.)--Florida State University, 2004.
Advisor: Dr. Charles Connerly, Florida State University, College of Social Sciences, Dept. of Urban and Regional Planning. Title and description from dissertation home page (viewed Jan. 12, 2005). Includes bibliographical references.

Em Portugal o direito à habitação é um direito constitucional para todos os cidadãos mas em Évora continua por cumprir em relação a algumas pessoas ciganas que vivem em acampamentos. Não ter acesso a habitação e viver em condições de precariedade extrema soma-se a outras condições como a pobreza, a segregação espacial e a discriminação social que condicionam toda a vida familiar dos indivíduos e das famílias. Estas famílias sem habitação residentes em Évora vivem em acampamentos, sem que se trate de uma opção de modo de vida, ou que se relacione com a “cultura cigana” mas sim pelo facto de não terem outras opções: não têm habitação, escolaridade, emprego, participação cívica, etc. No sentido de conhecer as condições de vida das pessoas ciganas desalojadas de Évora foi realizado um estudo exploratório que aborda as condições de sobrevivência, os apoios de que dispõem, as necessidades sentidas, preconceitos, segregação e discriminação. Em termos metodológicos aplicou-se um inquérito a um representante de cada uma família cigana desalojada o que permitiu ter o retrato sociodemográfico da população estudada. Foram também realizadas entrevistas a pessoas ciganas e a interventores institucionais que nos deu diferentes perspetivas sobre a mesma realidade social. As pessoas ciganas que vivem em acampamentos em Évora residem há anos na cidade e revelam um forte sentimento de pertença a esses territórios. (Sobre)vivem em contexto de pobreza (com escassos recursos económicos) e marginalização (afastados da vida da cidade), com carências ao nível das necessidades básicas (falta de habitação, eletricidade, água, saneamento, etc.) mas têm expetativas sobre a melhoria das suas condições de vida. Os técnicos apontam as dificuldades sentidas na intervenção e demonstram uma certa aceitação e naturalização das condições de vida em que vivem estas famílias ciganas. As políticas públicas mostram-se ineficazes para a resolução da questão habitacional e de acesso a recursos fundamentais por parte destas pessoas ciganas.
In Portugal the right to housing is a constitutional right but for some people it remains unfulfilled. In Évora there are still Gypsies who do not have access to housing and even the group is most affected by housing problems. The lack of access to housing and living in conditions of extreme precariousness adds up to other conditions such as segregation and social discrimination and conditions the entire family life of individuals and families. These families live in Évora, in camps without health conditions and in extreme poverty, without this way of life being their option, or having to do with the "Gypsy culture", but because they do not have other choice: they live without housing, no schooling, no job, no civic participation, etc. In order to know the living conditions of Gypsies evicted from Évora, an exploratory study was carried out with the objective of knowing their relationship with the territory, the conditions of survival, the support they have, the felt needs, prejudices, segregation and discrimination. In methodological terms, a questionnaire survey was applied to a representative of each gypsy family that allowed us to have the sociodemographic portrayal of these families and the interviewing of displaced Gypsy people and institutional interveners. The results show that the studied Gypsies have been settled in Évora for many years and have a strong sense of belonging to this territory. These people live in a context of poverty and marginalization, with serious shortcomings in basic needs (lack of housing, electricity, water, sanitation, etc.). Public policies have proved ineffective to resolve the housing issue and access to key resources by these Gypsy individuals.