The Force Analysis on the Shaft of Electric Vehicle Based on Unigraphics

2012 ◽  
Vol 507 ◽  
pp. 242-245
Author(s):  
Tao Fen Wang

Although the mechanical analysis on electric shaft is a complex and trival analysis process, the analysis method of using UG makes the force analysis of electric shaft single, rapid, accurate, and we realized the graphical level and improve the design efficiency and design quality. Through establishing a mathematical model, this paper analyzed the force characteristic of shaft according to the mathematical model.Then analyzed the force of connecting in rod automobile engine by using 3D software Unigraphics (UG).Fianlly we get the force data, whch provides theoretical basis and technical support for the axis force research of electric vehicle.

Author(s):  
Markus Jiuhanteng ◽  
Acep Iwan Saidi ◽  
R. Drajatno Widi Utomo

<p>Abstract This paper is a study of Andreas Gursky’s photo Rhein II. In this study, the post-structural semiotic analysis method is used to interpret meaning based on signs on the Rhein II. The post-structural semiotic analysis becomes the basis for interpreting meanings using related references. In the study of Rhein II photo objects, visual text analysis is expected to provide positive benefits for the development of photography, especially academically. Rhein II is a photo by Andreas Gursky. In Rhein II’s photograph, a contemporary photo is presented as a multi-reality representation analyzed using the post-structural semiotic method. The object of research is interpreted as a text that has a layer of meaning that is squeezed out of its essence by semiotics. The deconstruction of the signification system in the visual element is identified by reading the structural postal semiotic theory codes: text analysis process, creation process. The results of semiotic extraction produce an interpretive study of Rhein II which is full of meaning.</p><p>Keyword: imagery, photography, semiotica</p><p>Abstrak Makalah ini merupakan kajian dari foto Rhein II karya Andreas Gursky. Dalam kajian ini digunakan metode analisis semiotika post struktural untuk menginterpretasikan makna berdasarkan tanda-tanda pada Rhein. Analisis semiotika post struktural menjadi landasan dalam menginterpretasikan makna-makna dengan menggunakan referensi terkait. analisis teks visual, dalam kajian objek foto Rhein II diharapkan dapat memberikan kebermanfaatan yang positif bagi perkembangan fotografi khususnya secara akademis. Rhein II adalah foto karya Andreas Gursky. Dalam karya Rhein II, sebuah foto kontemporer dihadirkan sebagai representasi multi realitas yang dianalisis menggunakan metode semiotika post struktural. Objek penelitian dimaknai sebagai teks yang memiliki lapisan makna yang terperas esensinya oleh semiotika. Dekonstruksi sistem penandaan dalam elemen visual diidentifikasikan dengan pembacaan kode-kode teori semiotika pos struktural. Proses analisis teks, proses penciptaan. Hasil ekstraksi semiotika menghasilkan kajian interpretatif Rhein II yang sarat makna.</p><p>Kata kunci: citra imaji, fotografi, semiotika</p>


2020 ◽  
Vol 475 ◽  
pp. 115258 ◽  
Author(s):  
Hai B. Huang ◽  
Jiu H. Wu ◽  
Xiao R. Huang ◽  
Wei P. Ding ◽  
Ming L. Yang

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401982645 ◽  
Author(s):  
Haitao Luo ◽  
Jia Fu ◽  
Lichuang Jiao ◽  
Ning Chen ◽  
Tingke Wu

Kinematics and dynamics are the most important and basic tool for robot research. With the help of computer technology and the respective advantages of three kinds of software, a new method of co-simulation of parallel robot based on multi-platform is proposed, and the mechanical model of multi-body system of 3-revolute-prismatic-spherical parallel robot is established. According to the mechanical analysis of the parallel robot, the rigid-flexible coupling analysis method is adopted. The displacement error shows a periodic change with a period of 4.2 s and the maximum error is [Formula: see text]. The dangerous part of the structure is the root of the lower link, and its maximum stress is 202.64 MPa less than the yield strength of the material. The multi-software platform co-simulation improves the accuracy of the dynamic response analysis of the part under dynamic load, and provides an important theoretical basis for the design and optimization of the parallel robot.


Author(s):  
Qianmu Li ◽  
Yinhai Wang ◽  
Ziyuan Pu ◽  
Shuo Wang ◽  
Weibin Zhang

A robust, integrated and flexible charging network is essential for the growth and deployment of electric vehicles (EVs). The State Grid of China has developed a Smart Internet of Electric Vehicle Charging Network (SIEN). At present, there are three main ways to attack SIEN maliciously: distributed data tampering; distributed denial of service (DDoS); and forged command attacks. Network attacks are random and continuous, closely related to time. By contrast, when analyzing the alarm in malicious attacks, the traditional Markov chain based model ignores the association relationship in the time series between states of alarm, so that the analysis and prediction of alarms are not suitable for real situations. This paper analyzes the characteristics of the three types of attack and proposes an association state analysis method on the time series. This method firstly analyzes alarm logs at different locations, different levels, and different types, and then establishes the temporal association of scattered and isolated alarm information. Secondly, it tracks the transition trend of abnormal events in the SIEN’s main station layer, the channel layer, and the sub-station layer. It also identifies the real attack behavior. This method not only provides a prediction of security risks, but, more importantly, it can also accurately analyze the trend of SIEN security risks. Compared with the ordinary Markov chain model, this method can better smooth the fluctuation of processing values, with higher real-time performance, stronger robustness, and higher precision. This method has been applied to the State Grid of China.


Sign in / Sign up

Export Citation Format

Share Document