The Design of a New Type Oblique Suspended Elevator Platform

2011 ◽  
Vol 421 ◽  
pp. 196-199
Author(s):  
Ming Wei Hou

With the development of society, the services which the country supplied for the elderly and handicapped also continues to strengthen, and the oblique suspended elevator can solve the problem which the elder and handicapped walking up and down the stairs. This paper introduces the structure design project of an oblique suspended elevator platform, around the design and development of the whole platform, we make the structure design of the every part including the push device, and make the strength check of the key component.

Author(s):  
Liu Ruiwei ◽  
Hongwei Guo ◽  
Zhang Qinghua ◽  
Rongqiang Liu ◽  
Tang Dewei

Balancing stiffness and weight is of substantial importance for antenna structure design. Conventional fold-rib antennas need sufficient weight to meet stiffness requirements. To address this issue, this paper proposes a new type of cable-rib tension deployable antenna that consists of six radial rib deployment mechanisms, numerous tensioned cables, and a mesh reflective surface. The primary innovation of this study is the application of numerous tensioned cables instead of metal materials to enhance the stiffness of the entire antenna while ensuring relatively less weight. Dynamic characteristics were analyzed to optimize the weight and stiffness of the antenna with the finite element model by subspace method. The first six orders of natural frequencies and corresponding vibration modes of the antenna structure are obtained. In addition, the effects of structural parameters on natural frequency are studied, and a method to improve the rigidity of the deployable antenna structure is proposed.


Author(s):  
William R. Rodriguez-Duenas ◽  
Karen Aguia-Rojas ◽  
Valeria Valencia-Daza

2011 ◽  
Vol 374-377 ◽  
pp. 702-705
Author(s):  
Wei Feng ◽  
Hui Min Li

In the underground building, Light environment and thermal environment is poorer, in order to improve the problem, this paper brings forward a new type of lighting and ventilation system model; discusses the principle and characteristics of transmission; and analyses the question that influences lighting and ventilated effect in the application. Structure design and numerical simulation is the focus of the next step.


Author(s):  
Novita Sari ◽  
M. Saputra ◽  
Aswin Aswin ◽  
Avitha P ◽  
Mega C

Covid-19 merupakan penyakit pernapasan akut yang disebabkan oleh virus corona jenis baru. Penyakit ini pertama kali merebak di Wuhan, Cina lalu menyebar hampir ke seluruh dunia dan menyebabkan pandemi global. Penyakit ini menyerang semua golongan, dewasa, lansia, maupun anak-anak. Semua lapisan masyarakat dari mulai dewasa hingga anak-anak perlu mendapatkan edukasi yang mudah dipahami mengenai Covid19 dan cara-cara pencegahannya. Hal ini yang menjadi dasar dilaksanakannya praktek kerja pengabdian masyarakat IIB Darmajaya. Tujuan kegiatan ini adalah untuk ikut aktif dalam upaya pencegahan virus Covid-19 dengan memberikan sosialisasi tentang Covid-19 dan upaya pencegahannya melalui pembagian APD dan juga pembagian tempat cuci tangan kepada masyarakat Kelurahan Pinang Jaya, Kecamatan Kemiling, Kota Bandar Lampung. Kegiatan ini dilakukan bermitra dengan masyarakat Kelurahan Pinang Jaya . metode yang dipergunakan adalah dengan cara penyuluhan dan sosialisasi tentang pencegahan Covid-19, pengadaan  sarana prasarana pencegahan Covid 19. Hasil dari pengabdian ini adalah masyarakat dapat memahami lebih jauh mengenai virus Covid 19 ini sehingga masyarakat dapat turut serta melakukan upaya pencegahan penularan Covid-19 dimulai dari diri mereka masing-masing. Kata Kunci: Pengabdian, Covid-19, Pandemik, Sosialisasi, Edukasi ABSTRACT Covid-19 is an acute respiratory disease caused by a new type of corona virus. This disease first broke out in Wuhan, China then spread almost throughout the world and caused a global pandemic. This disease attacks all groups, adults, the elderly, and children. All levels of society from adults to children need to get education that is easy to understand about Covid19 and ways to prevent it. This is the basis for implementing IIB Darmajaya community service work practices. The purpose of this activity is to actively participate in efforts to prevent the Covid-19 virus by providing socialization about Covid-19 and prevention efforts through the distribution of PPE and also the distribution of hand washing facilities to the people of Pinang Jaya Village, Kemiling District, Bandar Lampung City. This activity is carried out in partnership with the people of Pinang Jaya Village. The method used is by means of counseling and socialization about the prevention of Covid-19, the provision of infrastructure for preventing Covid-19. of themselves. Keywords: Community Service, Covid-19, Pandemic, Socialization, Education


2018 ◽  
Vol 122 (1249) ◽  
pp. 349-368
Author(s):  
F. Gao ◽  
J. G. Lv ◽  
X. C. Zhang

ABSTRACTThis article describes the design and evaluation of a new type of propulsion mechanism that uses modular umbrella-like wings oscillating symmetrically in counterphase to generate thrust. The principle of the propulsion and movement of the modular umbrella-like wings was first developed, and the mechanism used to implement the movement of the modular wings was subsequently designed. A structural model and the assembly relationship of the propulsion mechanism were developed for prototype fabrication. An experiment was established to measure the kinematic and mechanical performances of the propulsion mechanism for different reciprocating frequencies and travels. The results for the single umbrella-like wing indicate that either increasing the frequency or enlarging the travel can enhance the average aerodynamic force generated by the wing in one cycle. The results for the modular umbrella-like wings demonstrate that the inertial force generated by the mechanism can be balanced using a symmetrical structure. The average aerodynamic force would be markedly enhanced by increasing the percentage of the time that the outspread wing is moving downwards; e.g. the average aerodynamic force generated by the modular umbrella-like wings was increased by 85.84% compared to the value for a single umbrella-like wing for the same travel and frequency. This work provides practical guidance for optimising the structure design.


Author(s):  
Ping Huo ◽  
Yangyang Xu ◽  
Jiangtao Yu ◽  
Yazhou Wang

This paper designs and develops a new type of frame-foot wall-climbing robot structure. According to the bionic principle, a new parallel telescopic leg structure is proposed, and the 3D design of the overall structure of the wall-climbing robot is completed. Secondly, the kinematics analysis of the robot is carried out, and the forward and inverse solution models of the leg structure position are completed to verify the feasibility of the leg structure stability. Based on the polynomial motion equations, the robot motion planning and gait design are established, and the speed and acceleration change graphs of the leg structure slider are obtained, which avoids the rigid impact between the parts, and realizes the alternate adsorption and continuous movement of the robot legs, which the rationality of the legs structure design and the stability of the movement are verified. Through simulation and experimental results, it is shown that during the robot’s movement, the leg structure can adjust the step distance and step height according to obstacles, so as to achieve the expected obstacle crossing goal. The leg structure is adjusted according to the working environment to ensure that the fuselage and the working surface are always kept parallel to improve the stability of the overall structure.


Author(s):  
Mian Wang ◽  
Lefeng Cheng ◽  
Bin Liu ◽  
Haorong Jiang ◽  
Zhukui Tan ◽  
...  

2020 ◽  
Vol 8 (22) ◽  
pp. 7476-7484 ◽  
Author(s):  
Xudong Zhou ◽  
Xiaoyun Liu ◽  
Zhongkai Cui ◽  
Jinlou Gu ◽  
Shaoliang Lin ◽  
...  

A new-type of hollow silica@ZIF-8 (HMS@ZIF-8) particle was successfully designed, fabricated and introduced into the fluorinated polybenzoxazole (6FPBO) matrix to prepare the HMS@ZIF-8/6FPBO composite film.


2016 ◽  
Vol 45 (2) ◽  
pp. 113-147
Author(s):  
Matthias Stepan ◽  
Quan Lu

This study explores the processes and outcomes of the public policy reforms from 2002 to 2014, targeting income security among the elderly for a segment of the Chinese population that was increasingly marginalised throughout the 1990s: the rural population. The authors reconstruct the policy process from 2002 until 2014 that led to the establishment of the New Type Rural Social Insurance Pension and assess its impact on providing adequate and sustainable old-age income. One particular focus is the study of the influence of international actors. Yet, as key to the success of the initiative, the authors identify the decisive support of the central level leadership, which facilitated the process by announcing a new development model and providing earmarked transfers from the central government. Despite the improvements in the income security of elderly rural Chinese, questions remain about the Chinese pension system's long-term sustainability and the influence of the system's fragmentation on social mobility and equality.


Sign in / Sign up

Export Citation Format

Share Document