Background: Because of the lack of accurate values for applied forces in manual therapy, manual therapists relies on the magnitude of the individual’s perception during applying the force. However, excessive loading maneuvers carry risks for patients. Objective: To establish the relationship between the maximal force applied to swine skin with the specific region, sex, and baseline parameters of the subject. Design: Ex-vivo Study and laboratory Experimental research Methods: 3.5 kg of Korean pork sirloin that is a piece of swine was handled and it was set 3 dimensions; #A; #B; #C. Forty-seven participants who has no experience in physical therapy randomly carried out the experiment, indicated to push each place of the pressure spots with same posture and process under supervision from the instructor who has over 15 years of manual therapy, and we measured the pressure force in each time. Results: The biggest pressure force was recorded in spot #A, and #B was represented after #C. Pressure on #A showed certain statistic relation with height (r=.317, p<.05) and weight (r=.434, p<.01); pressure on #B showed certain relation which has statistical meaning with only height (r=.401, p<.01); pressure on #C emerged to have statistic relationship with height (r=.308, p< .05)and weight (r=.428, p<.01). The age aspect revealed relation with pressure on #A, #B and #C, but that was not statistically significant. Conclusions: It can be inferred that there is the most loss of pressure in the area where cartilage is like an island in the middle.

TLD(Tuned Liquid Damper)나 TLCD(Tuned Liquid Column Damper)와 같이 액체를 질량체로 사용하는 부가 질량형 감쇠기의 경우 동특성추정을 위하여 실제 크기의 진동제어기를 공장에서 제작하여 실험하는 것이 불가능하다. 또한 TMD(Tuned Mass Damper)의 질량체를 콘크리트로 사용하는 콘크리트 TMD의 경우에도 공장실험에서 콘크리트를 타설할 수 없기 때문에 완성된 TMD의 정확한 동적특성을 파악하는 것이 어렵다. 따라서 본 논문에서는 공장 가조립을 통한 실험을 실시하여 동적특성을 추정하기 어려운 경우에 대하여 현장실험을 통한 동특성추정 기법에 관하여 소개하고자 한다. 이를 위해 건물과 진동제어기의 연계된 운동방정식(Coupled equation of motion)으로부터 비연계 운동방정식(Decoupled equation of motion)을 유도한다. 유도된 비연계 운동방정식을 기반으로 건물의 응답과 진동제어기의 응답을 각각 시스템 식별을 위한 입력과 출력으로 하여 일반적인 시스템기법을 이용하여 동특성을 추정할 수 있도록 한다.