Pose-varied swing arm profilometer test for off-axis aspheric surfaces with strong asphericity

2021 ◽  
Vol 46 (19) ◽  
pp. 4940
Author(s):  
Ling Xiong ◽  
Xiao Luo ◽  
Xuejun Zhang ◽  
Erhui Qi ◽  
Haixiang Hu ◽  
...  
Keyword(s):  
Aspheric Surfaces ◽  
Swing Arm

Tilt angle correction based forming algorithm for high steepness aspheric surfaces polishing

Optik ◽  
2021 ◽  
pp. 167082
Author(s):  
Changjun Jiao ◽  
Yong Shu ◽  
Zhen Zhang ◽  
Bo Wang ◽  
Feihai Gao
Keyword(s):  
Tilt Angle ◽  
Aspheric Surfaces ◽  
Angle Correction

scholarly journals Light-weighting of single-sided motorcycle swing-arm through generative design

2021 ◽  
Vol 1128 (1) ◽  
pp. 012016
Author(s):  
Adarsh Balasubramanian ◽  
G Shaktivel ◽  
N Raghukiran
Keyword(s):  
Generative Design ◽  
Swing Arm ◽  
Light Weighting

Engine Mount Optimization for Vibration Isolation in Motorcycles

2006 ◽  
Author(s):  
Sudhir Kaul ◽  
Anoop K. Dhingra ◽  
Timothy G. Hunter
Keyword(s):  
Optimization Problem ◽  
Vibration Isolation ◽  
Total Force ◽  
Engine Mounts ◽  
The Road ◽  
Design Variables ◽  
Swing Arm ◽  
Engine Mount ◽  
Six Degree Of Freedom

This paper presents a comprehensive model to capture the dynamics of a motorcycle system in order to evaluate the quality of vibration isolation. The two main structural components in the motorcycle assembly - the frame and the swing-arm - are modeled using reduced order finite element models; the power-train assembly is modeled as a six degree-of-freedom (DOF) rigid body connected to the frame through the engine mounts and to the swing-arm through a shaft assembly. The engine mounts are modeled as tri-axial spring-damper systems. Models of the front-end assembly as well as front and rear tires are also included in the overall model. The complete vehicle model is used to solve the engine mount optimization problem so as to minimize the total force transmitted to the frame while meeting packaging and other side constraints. The mount system parameters - stiffness, position and orientation vectors - are used as design variables for the optimization problem. The imposed loads include forces and moments due to engine imbalance as well as loads transmitted due to irregularities in the road surface through the tire patch.

scholarly journals Optical Design of the Goaly3 Multi-Mirror Telescope System with a Wide Field of View

2021 ◽  
Vol 11 (3) ◽  
pp. 1200
Author(s):  
Junliu Fan ◽  
Quanying Wu ◽  
Baohua Chen ◽  
Lin Liu ◽  
Lei Chen
Keyword(s):  
Fill Factor ◽  
Optical Design ◽  
Tolerance Analysis ◽  
Field Of View ◽  
Wide Field ◽  
Aspheric Surfaces ◽  
The Monte Carlo Method ◽  
Wide Field Of View ◽  
Mirror Telescope ◽  
Telescope System

A Golay3 multi-mirror telescope (MMT) system is designed in this paper. The fill factor of the Golay3 MMT is derived from the angular resolution of the telescope. An initial configuration is established according to the paraxial optical theory. A three-element aspheric corrector group is designed and placed in the converging light cone to enlarge the field of view (FOV) of the Golay3 MMT. The tolerance analysis for each surface of the Golay3 MMT is conducted using the Monte Carlo method. The design results show the FOV of the Golay3 MMT system can be increased to 1.5° with the insertion of a three-element aspheric corrector group. The results of the tolerance analysis indicate that most tolerances are loose, while some decenter tolerances relating with the aspheric surfaces are relatively tight, but still within an acceptable range.

scholarly journals Form Accuracy in Raster Flycutting of Asymmetric Aspheric Surfaces. Effect of Laser Positioning Error Due to Fluctuation in Atmospheric Pressure.

2002 ◽  
Vol 68 (665) ◽  
pp. 308-314
Author(s):  
Katsumi YAMAGUCHI ◽  
Kazuo MURATA ◽  
Seiichirou KITAGAWA ◽  
Hiroshi OHWARI ◽  
Kousuke IMAMURA ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Positioning Error ◽  
Aspheric Surfaces ◽  
Form Accuracy
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