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Featured researches published by Fumihiro Ohshima.


Transactions of the Japan Society of Mechanical Engineers. C | 2006

Equivalent Tooth Surface Error Caused by Bending and Torsional Deformations of Gear Shafts (For a Shaft-Integrated Gear)

Hidehiro Yoshino; Fumihiro Ohshima

A calculation method of tooth surface-errors equivalent to axis displacements caused by bending and torsional deformations of gear shafts is proposed. An axis layout, shaft shapes, gear dimensions and applied torques for a cylindrical gear drive are described into one data file. The developed program can calculate the equivalent tooth surface as a contour line diagram. Through the calculation examples, it was shown that the equivalent tooth surface is changed complexly by the axis layout, the rotational direction, etc. Finally, the effects of the tooth surface modification based on the equivalent tooth surface were investigated through the calculation of the contact stress at the meshing teeth and the transmission error under the loaded condition.


Transactions of the Japan Society of Mechanical Engineers. C | 2006

Study on High Reduction Face Gears (1st Report, Meshing Analysis)

Fumihiro Ohshima; Hidehiro Yoshino


Transactions of the JSME (in Japanese) | 2016

Measurement of surface torsional strain distributions on rotary shaft using FBG optical fiber sensing

Yutaka Hayama; Fumihiro Ohshima; Junichi Ibukuro; Akira Matsuo; Seiya Hagihara


Transactions of the Japan Society of Mechanical Engineers. C | 2012

Study on Tooth Contact of Gear Couplings

Fumihiro Ohshima; Susumu Hirata; Hidehiro Yoshino


Transactions of the Japan Society of Mechanical Engineers. C | 2012

Relief Grinding of Pinion Cutters with Trapezoid Wheel

Koutaro Hamada; Hidehiro Yoshino; Fumihiro Ohshima


Transactions of the Japan Society of Mechanical Engineers. C | 2007

Study on High Reduction Face Gears (3rd Report, Proposal of Simplified Design Method)

Fumihiro Ohshima; Hidehiro Yoshino


Transactions of the Japan Society of Mechanical Engineers. C | 2004

Simplified Model for Deformation of Gear Tooth and Meshing Simulation (For Spur Gear Pairs)

Hidehiro Yoshino; Fumihiro Ohshima


The Proceedings of Conference of Kyushu Branch | 2004

Power Transmission Efficiency of Wheel-Driving Worm Gears

Fumihiro Ohshima; Hidehiro Yoshino; Yoshiyasu Shimauchi


The Proceedings of Conference of Kyushu Branch | 2002

Inspection of tooth-modified gears with single flank gear rolling tester

Hidehiro Yoshino; Fumihiro Ohshima; Kazuyuki Nakashima


The Proceedings of Conference of Kyushu Branch | 2017

Study on Gear Skiving for Internal Gears: (Effects of Cutter Offset on Cutting Torque)@@@(切削トルクに及ぼすカッタオフセットの影響)

Fumihiro Ohshima; Hizuru Morodomi

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