Analysis for Dynamics Performance Indices of 4-rr(rr)r Parallel Mechanism

نویسندگان

  • Xijuan Guo
  • Shuang Liu
  • Zhenchun Wang
  • Z. WANG
چکیده

The dynamics performance of 4-RR(RR)R parallel mechanism is analyzed by virtual mechanism method and global conditioning index, which includes Jacobian matrix and Hessian matrix in this paper. Furthermore, the performance indices atlas of velocity, acceleration and inertial force are given. When the acceleration performance index is analyzed, kHkkH−1k is compared with kGkkG−1k in order to find out which index has the most influence on acceleration performance. At the end of the paper the 4-RR(RR)R parallel mechanism is simulated by a model designed by Matlab software.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Elimination of Reactive Red 120 (RR-120) Dye from Aqueous Solution by the using of Date Cores Particles

toxicity, cancinogenic activity, and mutagenicity. The purpose of this study was evaluation of the removal of Reactive Red 120 (RR-120) dye from aqueous solution by date Palm (Phoenix dactylifera) seed particles. Batch adsorption studies carried out to study various parameters included contact time, initial concentration of Reactive Red 120, pH, and adsorbent dosage. The concentration of dye wa...

متن کامل

Subgroup dairy products consumption on the risk of stroke and CHD: A systematic review and meta-analysis

Background: There is no global consensus about the relationship between dairy consumption and cardiovascular diseases (CVD). This study aimed at integrating the results of several studies to predict the dairy effects on CVD, e.g. stroke and CHD.    Methods: In the present study, some major databases such as Scopus, Science Direct, and PubMed were searched up to September 2014. All pr...

متن کامل

Representation of $H$-closed monoreflections in archimedean $ell$-groups with weak unit

 The category of the title is called $mathcal{W}$. This has all free objects $F(I)$ ($I$ a set). For an object class $mathcal{A}$, $Hmathcal{A}$ consists of all homomorphic images of $mathcal{A}$-objects. This note continues the study of the $H$-closed monoreflections $(mathcal{R}, r)$ (meaning $Hmathcal{R} = mathcal{R}$), about which we show ({em inter alia}): $A in mathcal{A}$ if and  only if...

متن کامل

پیشگویی رخدادهای قلبی عروقی در کوتاه مدت و در افراد بالای 30 سال با استفاده از شاخص‌های لیپیدی پلاسما

Background: To evaluate the role of lipid markers including total cholesterol (TC), LDL-C and HDL-C vs. lipid indices (TC/HDL-C, LDL-C/HDL-C and non-HDL-C) as short term predictors of cardiovascular outcomes in adults over 30 years. Methods: As a nested case and control study, there were 207 CVD events among participants of Tehran Lipid and Glucose Study (TLGS) documented during 3 years of fol...

متن کامل

مقایسه شاخص‌های زبری آلماراس و زنجیر در دشت‌سرهای مناطق خشک (مطالعه موردی حوزه دشت یزد- اردکان)

Soil surface roughness (SSR) is one of the important factors in wind and water erosion studies and control. Several parameters such as surface rock fragments influence SSR. Main objectives of this paper are to study and compare (Allmarass) random roughness (RR) and tortuosity (Tb) indices in coarse, medium and fine grain plains of Yazd-Ardakan and investigate the relationship between indices an...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005