Quantitative Measuring Method of Thermal Contact Resistance Considered Real Contact Area

Shimizu, Sakayu; Kikumori, Kazuhiro; Sakamoto, Haruhisa; Tamaoki, Kenji

doi:10.2493/jspe.71.1026

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Furthermore, sincc the rca] contact area Ar is in proportien to the force F, -'e have a]so revealcd that 6=6+fi =-1skxtin(F"iLl)'fiY (1) where 5' and 6, are approaching distance at the ]oad ofF' and F, respectively. The contact stiMiess ofthejoint k is identi fied 1'rom this equation (1) and the experimenta] data.…”

Section: Principleofidentificationofjointcontactstiffnessmentioning

confidence: 99%

“…Those researches arc carried out based on the neminal contact area without eonsidering real contact area. However, it has been revealed that the real contact area is far smaller than the nominal contact area, since thejoints have not always ideal fiatness [1].Then,wehaveproposedthequantitativemeasurement method ofcontact stiffiiess ofthejoint with same material combination eonsidering the real contact area [2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

B4 Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination(Advanced machine tool)

Shimizu

Nakamura

Sakamoto

2009

LEM21

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In this research, we propose the new measurement method ofcontact stiffiress ofthejoint with different material combination based on the former established method for thejoint with same material combination.As the results, we enabled to measure the real contact area ofthejoint with various materiat combinations considering the reflected 1evel ofultra-sonic waye at the real contact area. Moreover, we enable to obtain the contact stiffhess ofsinglejoint interface from the contact stifftiess ofdoublejoint interface.

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Section: Principleofidentificationofjointcontactstiffnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

B4 Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination(Advanced machine tool)

Shimizu

Nakamura

Sakamoto

2009

LEM21

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show abstract

“…These researches are carried out based on the nominal contact area. However, it has revealed that the real contact area is far smaller than the nominal contact area (7) ,since the joint surfaces have not always ideal flatness. Then, we (8) have proposed the quantitative measurement method of the contact stiffness of the joint with same material combination considering the real contact area.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination

Shimizu

Nakamura

Sakamoto

2010

JAMDSM

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The joints in machine tools influence greatly the static, dynamic and thermal characteristics of the machines. Then the many researches on them have been carried out. Under these conditions, the authors have established the quantitative measurement method of contact stiffness of the joint with same material combination considering the real contact area, since the real contact area is far smaller than the nominal contact area. In this research, we propose the new measurement method of contact stiffness of the joint with different material combination expanding the former method we developed and its validity is considered. In consequence, the following results are obtained. 1) The measurement method applicable to the joint with various material combinations is established using inserted specimens. 2) The real contact area of the joint with different material combination can be accurately measured considering the reflected level of ultrasonic wave at the real contact area of the joint.3) The contact stiffness of the joint with different material combination can be treated as the series coupling of the each contact stiffness constructing the joint. 4) The contact stiffness of the joint and each contact stiffness of the contact springs constructing the joint can be measured by the proposed method.

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Measurement of surface roughness dependence of thermal contact resistance under low pressure condition

Azuma

Hatakeyama

Nakagawa

2015

2015 International Conference on Electronic Packaging and iMAPS All Asia Conference (ICEP-IAAC)

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Quantitative Measuring Method of Thermal Contact Resistance Considered Real Contact Area

Cited by 4 publications

References 5 publications

B4 Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination(Advanced machine tool)

B4 Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination(Advanced machine tool)

Quantitative Measurement Method of Contact Stiffness of the Joint with Different Material Combination

Measurement of surface roughness dependence of thermal contact resistance under low pressure condition

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