نتایج جستجو برای: axisymmetric vibration

تعداد نتایج: 58054  

Journal: :Symmetry 2023

Axisymmetric (or almost axisymmetric) systems are ever-present in mechanical engineering [...]

2004
Dong Hwan Park

In general, deep drawing products have various cross-section shapes such as cylindrical, rectangular and nonaxisymmetric shapes. The application of the surface area calculation to non-axisymmetric deep drawing process has not been published yet. In this research, a surface area calculation for non-axisymmetric deep drawing products with elliptical shape was constructed for a design of blank sha...

Journal: :مهندسی بیوسیستم ایران 0
حسین جوادی کیا دانشگاه رازی کرمانشاه لیلا ندرلو دانشگاه رازی کرمانشاه علی سفرنگیان دانشگاه رازی مصطفی مصطفایی دانشگاه رازی سید سعید محتسبی دانشگاه تهران

in this study, the mf285 tractor engine vibrations resulting from the use of different combinations of biodiesel, bioethanol and diesel as fuel were studied. engine vibrations in three directions and three engine speeds: 1000, 1600 rpm 2000 and ten fuel level was measured. to investigate the influence of measured parameters on engine vibration of factorial design in a randomized complete block ...

Journal: :General Relativity and Gravitation 2016

Journal: :Journal of Physics: Conference Series 2021

Journal: :مجله دانشگاه علوم پزشکی شهرکرد 0
احسان اله حبیبی ehsanollah habibi نسرین صادقی nasrin sadeghi occupational health dept., univ. of med. sci. gonabad,گناباد-حاشیه جاده آسیایی-دانشگاه علوم پزشکی- گروه بهداشت سیامک پور عبدیان seyamak pourabdian

background and aims: whole body vibration (wbv) transmitted to drivers is one of the main reasons for several different symptoms such as musculoskeletal disorders. one of the recommendations to decrease the effects of whole body vibration is using a device that acts as an isolator. in this study, we used an air cushion as a device to decrease wbv. we measured whole body vibration transmitted to...

Journal: :journal of agricultural science and technology 2012
m. sadeghi m. h. khoshtaghaza

black tea sample was dried by a vibro-fluidized bed dryer to find its aerodynamic behavior and thermal performance during drying. the drying experiments were conducted at three different inlet air temperatures of 100, 115 and 130°c and fluidization condition at five vibration intensity levels of 0 (no vibration), 0.063, 0.189, 0.395 and 1.184. the results showed that bed channeling and defluidi...

Journal: :Monthly Notices of the Royal Astronomical Society 1968

A Loghman, M Moradi

In this study, the non-linear creep behaviour of a thick-walled cylinder made of stainless steel 316 is investigated using a semi-analytical method. The thick-walled cylinder is under a uniform internal pressure and a non-axisymmetric thermal field as a function of the radial and circumferential coordinates. For the high temperature and stress levels, creep phenomena play a major role in stress...

M. Farzin and M Shariaty,

Stretching process of sheet metals in both cases of axisymmetric and non-axisymmetric is analyzed. A rigid-plastic, normal anisotrop material is assumed and large strain formulation is applied. Triangular elements are used and stiffness equations of elements are obtained from virtual work principle. These nonlinear equations are linearized by Newton-Raphsons method and are solved by Gaussian el...

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